Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Statement of Comprehensive Income [Abstract]
Net sales	$ 6,339	$ 6,031
Cost of goods sold	5,273	4,979
Gross profit	1,066	1,052
Operating expenses:
Distribution, selling and administrative costs	1,192	921
Total operating expenses	1,192	921
Operating (loss) income	(126)	131
Other income—net	(6)	(2)
Interest expense—net	52	42
(Loss) income before income taxes	(172)	91
Income tax (benefit) provision	(40)	20
Net (loss) income	(132)	71
Other comprehensive (loss) income—net of tax:
Changes in retirement benefit obligations	0	1
Unrecognized loss on interest rate swaps	(6)	(6)
Comprehensive (loss) income	$ (138)	$ 66
Net (loss) income per share:
Basic	$ (0.60)	$ 0.33
Dilutive	$ (0.60)	$ 0.32
Weighted-average common shares outstanding
Basic	219	217
Diluted	219	219