US Foods Holding Corp. Condensed Financial Information Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Cash flows from operating activities:
Net (loss) income	$ (226)	$ 385	$ 407
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Deferred tax (benefit) provision	(51)	7	45
Changes in operating assets and liabilities:
Decrease in accrued expenses and other liabilities	(12)	(4)	(126)
Net cash provided by operating activities	413	760	609
Cash flows from investing activities:
Net cash used in investing activities	(1,110)	(1,987)	(232)
Cash flows from financing activities:
Net proceeds from issuance of Series A convertible preferred stock	491	0	0
Net cash provided by (used in) financing activities	1,427	1,220	(391)
Net increase (decrease) in cash, cash equivalents and restricted cash	730	(7)	(14)
Cash, cash equivalents and restricted cash—beginning of year	98	105	119
Cash, cash equivalents and restricted cash—end of year	828	98	105
US Foods Holding Corp.
Cash flows from operating activities:
Net (loss) income	(226)	385	407
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Equity in net earnings of subsidiary	231	(385)	(376)
Deferred tax (benefit) provision	0	0	(23)
Changes in operating assets and liabilities:
Decrease in accrued expenses and other liabilities	(5)	0	(8)
Net cash provided by operating activities	0	0	0
Cash flows from investing activities:
Investment in Subsidiary	(491)	0	0
Net cash used in investing activities	(491)	0	0
Cash flows from financing activities:
Net proceeds from issuance of Series A convertible preferred stock	491	0	0
Net cash provided by (used in) financing activities	491	0	0
Net increase (decrease) in cash, cash equivalents and restricted cash	0	0	0
Cash, cash equivalents and restricted cash—beginning of year	0	0	0
Cash, cash equivalents and restricted cash—end of year	$ 0	$ 0	$ 0