Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020	Dec. 31, 2020
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Current Contract Assets, Net	$ 808		$ 808		$ 731
Noncurrent Contract Assets, Net	11		11		11
Current Contract Liabilities	1,442		1,442		1,271
Noncurrent Contract Liabilities	822		822		$ 763
Revenue recognized that was included in the current contract liability balance at the beginning of the period	$ 173	$ 142	$ 1,100	$ 773