Revenue - Impact of Adjustments in Contract Estimates (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	$ 9,392	$ 9,389
Operating Earnings	908	938
Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	107	85
Operating Earnings	$ 105	$ 63
Diluted earnings per share (in dollars per share)	$ 0.30	$ 0.17