Goodwill and Other Intangible Assets, Net - Goodwill Rollforward (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 29, 2018
Goodwill [Line Items]
Accumulated impairment	$ (939)			$ (939)
Goodwill [Roll Forward]
Beginning Balance				750	$ 760	$ 760
Foreign currency translation				(9)		(13)
Goodwill additions				1,354		3
Goodwill impairment	(939)		$ 0	(939)	0
Ending Balance	1,156			1,156		750
Goodwill, Impairment Loss, Non-Deductible For Tax Purposes				939
North America
Goodwill [Line Items]
Accumulated impairment	(657)			(657)
Goodwill [Roll Forward]
Beginning Balance				529	528	528
Foreign currency translation				0		(1)
Goodwill additions				1,284		2
Goodwill impairment				(657)
Ending Balance	1,156			1,156		529
Europe
Goodwill [Line Items]
Accumulated impairment	(218)			(218)
Goodwill [Roll Forward]
Beginning Balance				172	182	182
Foreign currency translation				(8)		(11)
Goodwill additions				54		1
Goodwill impairment				(218)
Ending Balance	0			0		172
APAC & Emerging Markets
Goodwill [Line Items]
Accumulated impairment	(64)			(64)
Goodwill [Roll Forward]
Beginning Balance				49	$ 50	50
Foreign currency translation				(1)		(1)
Goodwill additions				16		0
Goodwill impairment				(64)
Ending Balance	$ 0			0		$ 49
VFC
Goodwill [Line Items]
Reduction to purchase price, goodwill		$ 30		$ 30