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