Basis of Presentation (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Apr. 04, 2020 USD ($) item $ / shares	Mar. 30, 2019 USD ($) $ / shares
Number of borrowing groups | item	2
Cumulative catch-up method
Cumulative catch-up adjustments	$ 2	$ 31
Change in accounting estimate financial effect increase in net income	$ 1	$ 23
Change in accounting estimate financial effect increase in earnings per share diluted | $ / shares	$ 0.01	$ 0.10
Gross favorable adjustments	$ 27	$ 53
Gross unfavorable adjustments	$ 25	$ 22