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The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."}],"balance_after":23609.55,"derivative":{"underlying":"Common Stock","underlying_shares":6517.55},"source":{"system":"sec-edgar","filing":"0001225208-21-003089","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520821003089/doc4.xml","form_type":"4"}},{"id":2850944,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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The shares will be distributed into the participant's account on February 19, 2020."},{"field":"shares","element":"transactionShares","label":"F3","text":"Shares surrendered to issuer in payment of tax liability in connection with vesting of RSRs in accordance with Rule 16b-3(e)."}],"balance_after":41490.31,"source":{"system":"sec-edgar","filing":"0001225208-20-002985","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520820002985/doc4.xml","form_type":"4"}},{"id":3259955,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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The shares will be distributed into the participant's account on February 19, 2020."},{"field":"shares","element":"transactionShares","label":"F2","text":"Shares issued upon vesting of Restricted Stock Rights (\"RSRs\") granted under the LTISP on 2/17/17 that vested on 2/18/2020."}],"balance_after":43031.31,"source":{"system":"sec-edgar","filing":"0001225208-20-002985","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520820002985/doc4.xml","form_type":"4"}},{"id":3271176,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Total amount includes 2,206 RSRs granted under the LTISP on 2/12/20 that will vest on 2/12/23; 2,845 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; 2,348 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; and 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/18/20."}],"balance_after":10588,"derivative":{"underlying":"Common Stock","underlying_shares":2206},"source":{"system":"sec-edgar","filing":"0001225208-20-002412","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520820002412/doc4.xml","form_type":"4"}},{"id":3271175,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F1","text":"Shares expected to be issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/17/17 with a valuation of performance measurement period (\"measurement period\") that ended 12/31/19.   RPSRs to be settled at 119% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes 5,207 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 6,714 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20."}],"balance_after":17092,"derivative":{"underlying":"Common Stock","underlying_shares":9074.94},"source":{"system":"sec-edgar","filing":"0001225208-20-002412","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520820002412/doc4.xml","form_type":"4"}},{"id":3271174,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F4","text":"The RPSRs acquired include (i) 1,448.94 vested RPSRs with respect to the measurement period ended 12/31/19 acquired due to settlement of the 2017 RPSRs held at 119% of the target award and (ii) 5,207 unvested RPSRs granted under the LTISP on 2/12/20 with a measurement period ending on 12/31/22."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Total amount includes 9,074.94 vested RPSRs granted under the LTISP on 2/17/17 with a measurement period ended on 12/31/19; 5,207 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 6,714 RPSRs granted on 12/31/19 with a measurement period ending on 12/31/21; and 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20."}],"balance_after":26166.94,"derivative":{"underlying":"Common Stock","underlying_shares":6655.94},"source":{"system":"sec-edgar","filing":"0001225208-20-002412","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520820002412/doc4.xml","form_type":"4"}},{"id":3271173,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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The shares are anticipated to be distributed into the participant's account on February 14, 2020."}],"balance_after":43822.31,"source":{"system":"sec-edgar","filing":"0001225208-20-002412","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520820002412/doc4.xml","form_type":"4"}},{"id":3614065,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2019-03-05T22:10:01.000Z","date":"2019-03-01","kind":"sale","acquired":false,"shares":17000,"price":288.01,"value":4896170.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average sale price of $288.01 rounded to the nearest hundredth.  The highest price at which the shares were sold was $288.33 and the lowest price at which the shares were sold was $288.00.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4."}],"balance_after":34747.37,"source":{"system":"sec-edgar","filing":"0001225208-19-004630","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819004630/doc4.xml","form_type":"4"}},{"id":3642336,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Stock Rights","published_at":"2019-02-21T22:20:58.000Z","date":"2019-02-19","kind":"exercise","acquired":false,"shares":4120,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"Shares issued upon vesting of Restricted Stock Rights (\"RSRs\") granted under the LTISP on 2/17/16 that vested on 2/19/19."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Shares issued upon vesting of Restricted Stock Rights (\"RSRs\") granted under the LTISP on 2/17/16 that vested on 2/19/19."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Total amount includes 2,845 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; 2,348 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; and 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/17/20."}],"balance_after":8382,"derivative":{"underlying":"Common Stock","underlying_shares":4120},"source":{"system":"sec-edgar","filing":"0001225208-19-003283","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819003283/doc4.xml","form_type":"4"}},{"id":3642335,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2019-02-21T22:20:58.000Z","date":"2019-02-19","kind":"tax_withholding","acquired":false,"shares":1990,"price":287.35,"value":571826.5,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"In accordance with the terms of the 2011 Long-Term Incentive Stock Plan (\"LTISP\"), because the third anniversary of the grant (February 17, 2019) fell on a weekend, the award shares vested on February 19, 2019, the next business day.  The vested award shares were valued based on the Company's closing stock price on February 19, 2019.  The shares will be distributed into the participant's account on February 20, 2019."},{"field":"shares","element":"transactionShares","label":"F3","text":"Shares surrendered to issuer in payment of tax liability in connection with vesting of RSRs in accordance with Rule 16b-3(e)."}],"balance_after":51747.37,"source":{"system":"sec-edgar","filing":"0001225208-19-003283","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819003283/doc4.xml","form_type":"4"}},{"id":3642334,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2019-02-21T22:20:58.000Z","date":"2019-02-19","kind":"exercise","acquired":true,"shares":4120,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"In accordance with the terms of the 2011 Long-Term Incentive Stock Plan (\"LTISP\"), because the third anniversary of the grant (February 17, 2019) fell on a weekend, the award shares vested on February 19, 2019, the next business day.  The vested award shares were valued based on the Company's closing stock price on February 19, 2019.  The shares will be distributed into the participant's account on February 20, 2019."},{"field":"shares","element":"transactionShares","label":"F2","text":"Shares issued upon vesting of Restricted Stock Rights (\"RSRs\") granted under the LTISP on 2/17/16 that vested on 2/19/19."}],"balance_after":53737.37,"source":{"system":"sec-edgar","filing":"0001225208-19-003283","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819003283/doc4.xml","form_type":"4"}},{"id":3654035,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Stock Rights","published_at":"2019-02-15T21:24:27.000Z","date":"2019-02-13","kind":"grant","acquired":true,"shares":2845,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/13/19 and will vest on 2/13/22."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/13/19 and will vest on 2/13/22."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/13/19 and will vest on 2/13/22."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Total amount includes 2,845 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; 2,348 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/17/20; and 4,120 RSRs granted under the LTISP on 2/17/16 that will vest on 2/17/19."}],"balance_after":12502,"derivative":{"underlying":"Common Stock","underlying_shares":2845},"source":{"system":"sec-edgar","filing":"0001225208-19-002768","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819002768/doc4.xml","form_type":"4"}},{"id":3654034,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2019-02-15T21:24:27.000Z","date":"2019-02-13","kind":"exercise","acquired":false,"shares":10440.85,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F1","text":"Shares expected to be issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/17/16 with a valuation of performance measurement period (\"measurement period\") that ended 12/31/18.   RPSRs to be settled at 115% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2019."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes 6,714 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20; and 7,626 RPSRs granted on 2/17/17 with a measurement period ending on 12/31/19."}],"balance_after":19511,"derivative":{"underlying":"Common Stock","underlying_shares":10440.85},"source":{"system":"sec-edgar","filing":"0001225208-19-002768","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819002768/doc4.xml","form_type":"4"}},{"id":3654033,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2019-02-15T21:24:27.000Z","date":"2019-02-13","kind":"grant","acquired":true,"shares":8075.85,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F4","text":"The RPSRs acquired include (i) 1,361.85 vested RPSRs with respect to the measurement period ended 12/31/18 acquired due to settlement of the 2016 RPSRs held at 115% of the target award and (ii) 6,714 unvested RPSRs granted under the LTISP on 2/13/19 with a measurement period ending on 12/31/21."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Total amount includes 10,440.85 vested RPSRs granted under the LTISP on 2/17/16 with a measurement period ending on 12/31/18; 6,714 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20; and 7,626 RPSRs granted on 2/17/17 with a measurement period ending on 12/31/19."}],"balance_after":29951.85,"derivative":{"underlying":"Common Stock","underlying_shares":8075.85},"source":{"system":"sec-edgar","filing":"0001225208-19-002768","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819002768/doc4.xml","form_type":"4"}},{"id":3654032,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2019-02-15T21:24:27.000Z","date":"2019-02-13","kind":"tax_withholding","acquired":false,"shares":4519,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)"}],"balance_after":49617.37,"source":{"system":"sec-edgar","filing":"0001225208-19-002768","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819002768/doc4.xml","form_type":"4"}},{"id":3654031,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2019-02-15T21:24:27.000Z","date":"2019-02-13","kind":"exercise","acquired":true,"shares":10440.85,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares expected to be issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/17/16 with a valuation of performance measurement period (\"measurement period\") that ended 12/31/18.   RPSRs to be settled at 115% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2019."}],"balance_after":54136.37,"source":{"system":"sec-edgar","filing":"0001225208-19-002768","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520819002768/doc4.xml","form_type":"4"}},{"id":3796202,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2018-10-05T21:10:36.000Z","date":"2018-10-03","kind":"sale","acquired":false,"shares":10440,"price":320,"value":3340800.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."},{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."}],"balance_after":43695.52,"source":{"system":"sec-edgar","filing":"0001225208-18-014458","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818014458/doc4.xml","form_type":"4"}},{"id":4034408,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2018-02-26T22:53:20.000Z","date":"2018-02-13","kind":"exercise","acquired":false,"shares":14796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F1","text":"Shares expected to be issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/18/15 with a valuation of performance measurement period (\"measurement period\") that ended 12/31/17.   RPSRs to be settled at 150% of target. The shares are anticipated to be distributed into the participant's account on February 26, 2018."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Total amount includes 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20; 7,626 RPSRs granted on 2/17/17 with a measurement period ending on 12/31/19; and 9,079 RPSRs granted on 2/17/16 with a measurement period ending on 12/31/18."}],"balance_after":21876,"derivative":{"underlying":"Common Stock","underlying_shares":14796},"source":{"system":"sec-edgar","filing":"0001225208-18-004213","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818004213/doc4a.xml","form_type":"4/A","original_submission_date":"2018-02-15"}},{"id":4034407,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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Amendment filed to correct the number of shares surrendered."}],"balance_after":51731.52,"source":{"system":"sec-edgar","filing":"0001225208-18-004213","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818004213/doc4a.xml","form_type":"4/A","original_submission_date":"2018-02-15"}},{"id":4034406,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2018-02-26T22:53:20.000Z","date":"2018-02-13","kind":"exercise","acquired":true,"shares":14796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares expected to be issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/18/15 with a valuation of performance measurement period (\"measurement period\") that ended 12/31/17.   RPSRs to be settled at 150% of target. The shares are anticipated to be distributed into the participant's account on February 26, 2018."}],"balance_after":58857.52,"source":{"system":"sec-edgar","filing":"0001225208-18-004213","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818004213/doc4a.xml","form_type":"4/A","original_submission_date":"2018-02-15"}},{"id":4040903,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. 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VP & General Counsel"}}],"security":"Common Stock","published_at":"2018-02-22T22:17:46.000Z","date":"2018-02-18","kind":"tax_withholding","acquired":false,"shares":2247,"price":350.36,"value":787258.92,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"In light of the vesting date, Sunday, February 18, 2018, and in accordance with the terms of the 2011 Long-Term Incentive Stock Plan (\"LTISP\"), award shares were valued based on the Company's closing stock price on February 20, 2018, the following business day.  The shares will be distributed into the participant's account on February 23, 2018."},{"field":"shares","element":"transactionShares","label":"F3","text":"Shares surrendered to issuer in payment of tax liability in connection with vesting of RSRs in accordance with Rule 16b-3(e)."}],"balance_after":54114.52,"source":{"system":"sec-edgar","filing":"0001225208-18-003803","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818003803/doc4.xml","form_type":"4"}},{"id":4040901,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2018-02-22T22:17:46.000Z","date":"2018-02-18","kind":"exercise","acquired":true,"shares":4651,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"In light of the vesting date, Sunday, February 18, 2018, and in accordance with the terms of the 2011 Long-Term Incentive Stock Plan (\"LTISP\"), award shares were valued based on the Company's closing stock price on February 20, 2018, the following business day.  The shares will be distributed into the participant's account on February 23, 2018."},{"field":"shares","element":"transactionShares","label":"F2","text":"Shares issued upon vesting of Restricted Stock Rights (\"RSRs\") granted under the LTISP on 2/18/15 that vested on 2/18/18."}],"balance_after":56361.52,"source":{"system":"sec-edgar","filing":"0001225208-18-003803","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818003803/doc4.xml","form_type":"4"}},{"id":4055395,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Stock Rights","published_at":"2018-02-15T22:38:27.000Z","date":"2018-02-13","kind":"grant","acquired":true,"shares":2348,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/13/18 and will vest on 2/13/21."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/13/18 and will vest on 2/13/21."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/13/18 and will vest on 2/13/21."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Total amount includes 2,348 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/17/20; 4,120 RSRs granted under the LTISP on 2/17/16 that will vest on 2/17/19; and 4,651 RSRs granted under the LTISP on 2/18/15 that will vest on 2/18/18."}],"balance_after":14308,"derivative":{"underlying":"Common Stock","underlying_shares":2348},"source":{"system":"sec-edgar","filing":"0001225208-18-003055","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818003055/doc4.xml","form_type":"4"}},{"id":4055394,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2018-02-15T22:38:27.000Z","date":"2018-02-13","kind":"exercise","acquired":false,"shares":14796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F1","text":"Shares expected to be issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/18/15 with a valuation of performance measurement period (\"measurement period\") that ended 12/31/17.   RPSRs to be settled at 150% of target. The shares are anticipated to be distributed into the participant's account on February 22, 2018."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total amount includes 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20; 7,626 RPSRs granted on 2/17/17 with a measurement period ending on 12/31/19; and 9,079 RPSRs granted on 2/17/16 with a measurement period ending on 12/31/18."}],"balance_after":21876,"derivative":{"underlying":"Common Stock","underlying_shares":14796},"source":{"system":"sec-edgar","filing":"0001225208-18-003055","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818003055/doc4.xml","form_type":"4"}},{"id":4055393,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2018-02-15T22:38:27.000Z","date":"2018-02-13","kind":"grant","acquired":true,"shares":10103,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F4","text":"The RPSRs acquired include (i) 4,932 vested RPSRs with respect to the measurement period ended 12/31/17 acquired due to settlement of the 2015 RPSRs held at 150% of the target award and (ii) 5,171 unvested RPSRs granted under the LTISP on 2/13/18 with a measurement period ending on 12/31/20."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Total amount includes 14,796 vested RPSRs granted under the LTISP on 2/18/15 with a measurement period ended on 12/31/17; 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20; 7,626 RPSRs granted on 2/17/17 with a measurement period ending on 12/31/19; and 9,079 RPSRs granted on 2/17/16 with a measurement period ending on 12/31/18."}],"balance_after":36672,"derivative":{"underlying":"Common Stock","underlying_shares":10103},"source":{"system":"sec-edgar","filing":"0001225208-18-003055","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818003055/doc4.xml","form_type":"4"}},{"id":4055392,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2018-02-15T22:38:27.000Z","date":"2018-02-13","kind":"tax_withholding","acquired":false,"shares":7147,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)."}],"balance_after":51710.52,"source":{"system":"sec-edgar","filing":"0001225208-18-003055","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818003055/doc4.xml","form_type":"4"}},{"id":4055391,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2018-02-15T22:38:27.000Z","date":"2018-02-13","kind":"exercise","acquired":true,"shares":14796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares expected to be issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/18/15 with a valuation of performance measurement period (\"measurement period\") that ended 12/31/17.   RPSRs to be settled at 150% of target. The shares are anticipated to be distributed into the participant's account on February 22, 2018."}],"balance_after":58857.52,"source":{"system":"sec-edgar","filing":"0001225208-18-003055","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520818003055/doc4.xml","form_type":"4"}},{"id":4425026,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2017-02-24T21:10:17.000Z","date":"2017-02-23","kind":"sale","acquired":false,"shares":6772,"price":242.11,"value":1639568.92,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."}],"balance_after":44061.52,"source":{"system":"sec-edgar","filing":"0001225208-17-004543","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004543/doc4.xml","form_type":"4"}},{"id":4432003,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Stock Rights","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-19","kind":"exercise","acquired":false,"shares":5796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F12","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"date","element":"transactionDate","label":"F3","text":"In light of the vesting date, Sunday, February 19, 2017, and in accordance with the terms of the LTISP, award shares were valued based on the Company's closing stock price on February 17, 2017, the immediately preceding business day.  The shares were distributed into the participant's account on February 22, 2017."},{"field":"shares","element":"transactionShares","label":"F4","text":"Shares issued upon vesting of Restricted Stock Rights (\"RSRs\") granted under the LTISP on 2/19/14 that vested on 2/19/17."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F12","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F12","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F13","text":"Total amount includes 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/17/20; 4,120 RSRs granted under the LTISP on 2/17/16 that will vest on 2/17/19; and 4,651 RSRs granted under the LTISP on 2/18/15 that will vest on 2/18/18."}],"balance_after":11960,"derivative":{"underlying":"Common Stock","underlying_shares":5796},"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4432002,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Stock Rights","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-17","kind":"grant","acquired":true,"shares":3189,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F10","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/17/17 and will vest on 2/17/20."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/17/17 and will vest on 2/17/20."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.  The RSRs were granted under the LTISP on 2/17/17 and will vest on 2/17/20."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F11","text":"Total amount includes 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/17/20; 4,120 RSRs granted under the LTISP on 2/17/16 that will vest on 2/17/19; 4,651 RSRs granted under the LTISP on 2/18/15 that will vest on 2/18/18; and 5,796 RSRs granted under the LTISP on 2/19/14 that vested on 2/19/17."}],"balance_after":17756,"derivative":{"underlying":"Common Stock","underlying_shares":3189},"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4432001,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-17","kind":"exercise","acquired":false,"shares":20570.52,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F1","text":"Shares issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/19/14 with a valuation of performance measurement period (\"measurement period\") ended 12/31/16.  The RPSRs were settled at 148% of target."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F9","text":"Total amount includes 7,626 RPSRs granted on 2/17/17 with a measurement period ending on 12/31/19; 9,079 RPSRs granted on 2/17/16 with a measurement period ending on 12/31/18; and 9,864 RPSRs granted on 2/18/15 with a measurement period ending on 12/31/17."}],"balance_after":26569,"derivative":{"underlying":"Common Stock","underlying_shares":20570.52},"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4432000,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Restricted Performance Stock Rights","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-17","kind":"grant","acquired":true,"shares":14297.52,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"shares","element":"transactionShares","label":"F7","text":"The RPSRs acquired include (i) 6,671.52 vested RPSRs with respect to the measurement period ended 12/31/16 acquired due to settlement of the 2014 RPSRs held at 148% of the target award and (ii) 7,626 unvested RPSRs granted under the LTISP on 2/17/17 with a measurement period ending on 12/31/19."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock.  The RPSRs vest if the application performance metric is satisfied for the relevant measurement period.  Grants awarded pursuant to Rule 16b-3(d)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Total amount includes 20,570.52 vested RPSRs granted under the LTISP on 2/19/14 with a measurement period ended on 12/31/16; 7,626 RPSRs granted on 2/17/17 with a measurement period ending on 12/31/19; 9,079 RPSRs granted on 2/17/16 with a measurement period ending on 12/31/18; and 9,864 RPSRs granted on 2/18/15 with a measurement period ending on 12/31/17."}],"balance_after":47139.52,"derivative":{"underlying":"Common Stock","underlying_shares":14297.52},"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4431999,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-19","kind":"tax_withholding","acquired":false,"shares":2951,"price":243.58,"value":718804.58,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F3","text":"In light of the vesting date, Sunday, February 19, 2017, and in accordance with the terms of the LTISP, award shares were valued based on the Company's closing stock price on February 17, 2017, the immediately preceding business day.  The shares were distributed into the participant's account on February 22, 2017."},{"field":"shares","element":"transactionShares","label":"F5","text":"Shares surrendered to issuer in payment of tax liability in connection with vesting of RSRs in accordance with Rule 16b-3(e)."}],"balance_after":50833.52,"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4431998,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-19","kind":"exercise","acquired":true,"shares":5796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F3","text":"In light of the vesting date, Sunday, February 19, 2017, and in accordance with the terms of the LTISP, award shares were valued based on the Company's closing stock price on February 17, 2017, the immediately preceding business day.  The shares were distributed into the participant's account on February 22, 2017."},{"field":"shares","element":"transactionShares","label":"F4","text":"Shares issued upon vesting of Restricted Stock Rights (\"RSRs\") granted under the LTISP on 2/19/14 that vested on 2/19/17."}],"balance_after":53784.52,"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4431997,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-17","kind":"tax_withholding","acquired":false,"shares":9870,"price":243.58,"value":2404134.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)"}],"balance_after":47988.52,"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4431996,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2017-02-22T21:37:25.000Z","date":"2017-02-17","kind":"exercise","acquired":true,"shares":20570.52,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares issued in settlement of Restricted Performance Stock Rights (\"RPSRs\") granted under the 2011 Long-Term Incentive Stock Plan (\"LTISP\") on 2/19/14 with a valuation of performance measurement period (\"measurement period\") ended 12/31/16.  The RPSRs were settled at 148% of target."}],"balance_after":57858.52,"source":{"system":"sec-edgar","filing":"0001225208-17-004128","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520817004128/doc4.xml","form_type":"4"}},{"id":4550826,"issuer":{"id":2963,"kind":"organization","name":"NORTHROP GRUMMAN CORP /DE/"},"owners":[{"id":50296,"kind":"person","name":"CHESTON SHEILA C.","position":1,"cik":"0001499087","reported_name":"CHESTON SHEILA C.","relationship":{"officer":true,"officer_title":"Corp. VP & General Counsel"}}],"security":"Common Stock","published_at":"2016-11-17T17:10:45.000Z","date":"2016-11-15","kind":"sale","acquired":false,"shares":3394,"price":251.29,"value":852878.26,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person."}],"balance_after":37288,"source":{"system":"sec-edgar","filing":"0001225208-16-041926","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1133421/000122520816041926/doc4.xml","form_type":"4"}}]}