Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Oct. 03, 2020	Sep. 28, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 115	$ 220	$ 73	$ 616
Other comprehensive income (loss), net of tax
Pension and postretirement benefits adjustments, net of reclassifications	37	20	110	61
Foreign currency translation adjustments	35	(34)	25	(30)
Deferred gains (losses) on hedge contracts, net of reclassifications	2	0	(5)	2
Other comprehensive income (loss)	74	(14)	130	33
Comprehensive income	$ 189	$ 206	$ 203	$ 649