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ACQUISITIONS, DIVESTITURES AND ASSET SALES - Acquisition of AJRD - Narrative (Details) - USD ($) |  |  | 2 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jul. 31, 2023 | Jul. 28, 2023 | Sep. 29, 2023 | Sep. 29, 2023 | Sep. 30, 2022 | Sep. 29, 2023 | Sep. 30, 2022 | Dec. 30, 2022
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Proceeds from issuance of long-term debt |  |  |  |  |  |  | $ 0 |
Goodwill |  |  | $ 20,736,000,000 | $ 20,736,000,000 |  | $ 20,736,000,000 |  | $ 17,283,000,000
Revenue from product sales and services |  |  |  | 4,915,000,000 | $ 4,246,000,000 | 14,079,000,000 | 12,484,000,000 |
Income (loss) before income taxes |  |  |  | 400,000,000 | $ (321,000,000) | 1,145,000,000 | $ 740,000,000 |
AR |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  | 2,348,000,000 | 2,348,000,000 |  | 2,348,000,000 |  | $ 0
5.4% Notes Due 2027 and 2033 and 5.6% Notes Due 2053 | Fixed-rate debt |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Proceeds from issuance of long-term debt | $ 3,250,000,000 |  |  |  |  |  |  |
Aerojet Rocketdyne Holdings, Inc. |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business acquisition, percentage of ownership |  | 100.00% |  |  |  |  |  |
Business combination, consideration transferred |  | $ 4,715,000,000 |  |  |  |  |  |
Provision for loss on customer contracts |  |  | 37,000,000 | 37,000,000 |  | 37,000,000 |  |
Loss provision amortization expense |  |  | 4,000,000 |  |  |  |  |
Total liabilities assumed |  |  |  |  |  | 53,000,000 |  |
Revenue from amortization of off-market contract liability |  |  |  | 4,000,000 |  |  |  |
Goodwill |  | $ 2,348,000,000 |  |  |  |  |  |
Revenue from product sales and services |  |  | 455,000,000 |  |  |  |  |
Income (loss) before income taxes |  |  | 56,000,000 |  |  |  |  |
Acquisition related costs |  |  |  | 45,000,000 |  | 67,000,000 |  |
Aerojet Rocketdyne Holdings, Inc. | AR |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  | $ 2,348,000,000 | $ 2,348,000,000 |  | 2,348,000,000 |  |
Aerojet Rocketdyne Holdings, Inc. | Other Accrued Liabilities |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Total liabilities assumed |  |  |  |  |  | 26,000,000 |  |
Aerojet Rocketdyne Holdings, Inc. | Other Noncurrent Liabilities |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Total liabilities assumed |  |  |  |  |  | $ 27,000,000 |  |

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