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BUSINESS SEGMENTS - Revenues and Income From Continuing Operations by Segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 29, 2023 | Dec. 30, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Revenue | $ 19,419 | $ 17,062 | $ 17,814
Operating income | 1,426 | 1,127 | 2,109
FAS pension service cost | (35) | (46) |
Pension Plan |  |  |
Segment Reporting Information [Line Items] |  |  |
FAS pension service cost | (33) | (44) | (66)
Non-service FAS pension income | (282) | (422) | (430)
Plans Under US Government Contracts | Pension Plan |  |  |
Segment Reporting Information [Line Items] |  |  |
FAS pension service cost | (35) | (46) | (68)
Less: CAS pension cost | (145) | (141) | (191)
FAS/CAS operating adjustment | 110 | 95 | 123
Non-service FAS pension income | 310 | 441 | 445
FAS/CAS pension adjustment, net | 420 | 536 | 568
Corporate non-segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | (189) | (165) | (204)
Operating income | (1,140) | (699) | (665)
Operating segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income | 2,566 | 1,826 | 2,774
Operating segments | SAS |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 6,856 | 6,384 | 6,315
Operating income | 756 | 665 | 782
Operating segments | IMS |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 6,630 | 6,626 | 6,733
Operating income | 459 | 494 | 845
Operating segments | CS |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 5,070 | 4,217 | 4,287
Operating income | 1,229 | 667 | 1,043
Operating segments | AR |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 1,052 | 0 | 0
Operating income | 122 |  |
Operating segments | Other non-reportable businesses |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 0 | 0 | 683
Operating income | $ 0 | $ 0 | $ 104

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