Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Dec. 31, 2019
Contract with Customer, Asset and Liability [Abstract]
Current Contract Assets, Net	$ 658	$ 603
Noncurrent Contract Assets, Net	17	17
Current Contract Liabilities	938	916
Noncurrent Contract Liabilities	617	$ 594
Revenue recognized that was included in the current contract liability balance at the beginning of the period	$ 405