BUSINESS SEGMENT INFORMATION - Schedule of Revenues and Income From Continuing Operations by Segment (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Oct. 02, 2026 |
Oct. 03, 2025 |
Oct. 02, 2026 |
Oct. 03, 2025 |
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| Segment Reporting [Line Items] | ||||||
| Revenue | $ 6,060 | $ 5,659 | $ 17,685 | $ 16,217 | ||
| Cost of revenue | (4,448) | (4,165) | (13,169) | (12,038) | ||
| Operating income | 786 | 621 | 2,092 | 1,717 | ||
| Non-service FAS pension income | [1] | 74 | 73 | 224 | 236 | |
| Other non-operating (expense) income, net | (1) | 25 | 107 | 51 | ||
| Interest expense, net | (116) | (152) | (381) | (454) | ||
| Income before income taxes | 743 | 567 | 2,042 | 1,550 | ||
| Operating segments | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | 6,065 | 5,658 | 17,690 | 16,070 | ||
| Cost of revenue | (4,452) | (4,164) | (13,134) | (11,915) | ||
| Company-funded R&D costs | (143) | (138) | (449) | (380) | ||
| Total other items | (503) | (456) | (1,296) | (1,235) | ||
| Operating income | 967 | 900 | 2,811 | 2,540 | ||
| Operating segments | Space & Mission Systems | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | 3,093 | 2,803 | 9,049 | 7,984 | ||
| Cost of revenue | (2,486) | (2,248) | (7,367) | (6,483) | ||
| Company-funded R&D costs | (51) | (51) | (155) | (144) | ||
| Total other items | (218) | (205) | (586) | (531) | ||
| Operating income | 338 | 299 | 941 | 826 | ||
| Operating segments | CSD | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | 1,995 | 1,935 | 5,793 | 5,605 | ||
| Cost of revenue | (1,214) | (1,218) | (3,554) | (3,560) | ||
| Company-funded R&D costs | (71) | (61) | (209) | (167) | ||
| Total other items | (208) | (179) | (541) | (500) | ||
| Operating income | 502 | 477 | 1,489 | 1,378 | ||
| Operating segments | Missile Solutions | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | 1,057 | 1,008 | 3,101 | 2,773 | ||
| Cost of revenue | (832) | (786) | (2,466) | (2,164) | ||
| Company-funded R&D costs | (21) | (26) | (85) | (69) | ||
| Total other items | (77) | (72) | (169) | (204) | ||
| Operating income | 127 | 124 | 381 | 336 | ||
| Intersegment | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | (80) | (88) | (253) | (292) | ||
| Cost of revenue | 80 | 88 | 253 | 292 | ||
| Intersegment | Space & Mission Systems | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | (27) | (24) | (72) | (78) | ||
| Intersegment | CSD | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | (40) | (51) | (145) | (174) | ||
| Intersegment | Missile Solutions | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | (13) | (12) | (36) | (38) | ||
| Other | ||||||
| Segment Reporting [Line Items] | ||||||
| Revenue | (5) | 1 | (5) | 147 | ||
| Operating income | $ (181) | $ (279) | $ (719) | $ (823) | ||
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of interest income (expense) classified as nonoperating. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of other expense (income) and loss (gain) calculated as difference between segment revenue and separately disclosed expense category to arrive at segment profit (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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