US Foods Holding Corp. Condensed Financial Information Balance Sheets (Details) - USD ($) $ / shares in Units, $ in Millions	Jan. 02, 2021	May 06, 2020	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
ASSETS
Total assets	$ 12,423		$ 11,288
LIABILITIES, MEZZANINE EQUITY AND SHAREHOLDERS' EQUITY
Deferred tax liabilities	270		308
Other long-term liabilities	505		315
Total liabilities	8,374		7,579
Commitments and Contingencies (Note 24)
Series A convertible preferred stock, $0.01 par value—25 shares authorized; 0.5 and 0.0 issued and outstanding as of January 2, 2021 and December 28, 2019	519		0
Shareholders’ Equity
Common stock, $0.01 par value—600 shares authorized; 221 and 220 issued and outstanding as of January 2, 2021 and December 28, 2019, respectively	2		2
Additional paid-in capital	2,901		2,845
Retained earnings	661		916
Accumulated other comprehensive loss	(34)		(54)
Total shareholders’ equity	3,530		3,709	$ 3,229	$ 2,751
Total liabilities, mezzanine equity and shareholders' equity	$ 12,423		$ 11,288
Common stock, par value (in USD per share)	$ 0.01		$ 0.01
Common stock, shares authorized (in shares)	600,000,000		600,000,000
Common stock, shares issued (in shares)	221,000,000		220,000,000
Common stock, shares outstanding (in shares)	221,000,000		220,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01	$ 0
Preferred Stock, authorized (in shares)	25,000,000		0
Preferred Stock, Number of shares issued	500,000	500,000	0
Preferred Stock, shares outstanding (in shares)	523,127		0
US Foods Holding Corp.
ASSETS
Investment in subsidiary	$ 4,050		$ 3,715
Total assets	4,050		3,715
LIABILITIES, MEZZANINE EQUITY AND SHAREHOLDERS' EQUITY
Deferred tax liabilities	1		1
Other long-term liabilities	0		5
Total liabilities	1		6
Commitments and Contingencies (Note 24)
Series A convertible preferred stock, $0.01 par value—25 shares authorized; 0.5 and 0.0 issued and outstanding as of January 2, 2021 and December 28, 2019	519		0
Shareholders’ Equity
Common stock, $0.01 par value—600 shares authorized; 221 and 220 issued and outstanding as of January 2, 2021 and December 28, 2019, respectively	2		2
Additional paid-in capital	2,901		2,845
Retained earnings	661		916
Accumulated other comprehensive loss	(34)		(54)
Total shareholders’ equity	3,530		3,709
Total liabilities, mezzanine equity and shareholders' equity	$ 4,050		$ 3,715
Common stock, par value (in USD per share)	$ 0.01		$ 0.01
Common stock, shares authorized (in shares)	600,000,000		600,000,000
Common stock, shares issued (in shares)	221,000,000		220,000,000
Common stock, shares outstanding (in shares)	221,000,000		220,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01		$ 0
Preferred Stock, authorized (in shares)	25,000,000		0
Preferred Stock, Number of shares issued	500,000		0
Preferred Stock, shares outstanding (in shares)	500,000		0