Related-party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 29, 2018	Dec. 30, 2017
Related Party Transactions [Abstract]
Allocated general corporate expenses	$ 5		$ 55	$ 59
Net transfers from Former Parent from statements of shareholders' equity	172	[1]	174	13
Share-based compensation expense	0		(7)	(7)
Changes to redemption value of redeemable non-controlling interests	(6)		107	54
Other	(1)		0	2
Total net transfers from Former Parent from statements of cash flows	$ 165		$ 274	$ 62

[1] See Note 2 - Business Acquisitions