Goodwill and Other Intangible Assets, net (Other Intangible Assets) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Non-amortizable intangible assets	$ 1,301,000,000		$ 1,301,000,000		$ 1,269,000,000
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Accumulated Amortization	611,000,000		611,000,000		727,000,000
Total other intangible assets, gross	2,741,000,000		2,741,000,000		3,005,000,000
Total other intangible assets, net	2,130,000,000		2,130,000,000		2,278,000,000
Non-amortizable intangible assets, currency movements			32,000,000
Finite-lived intangible assets, currency movements			10,000,000
Amortization of intangibles	16,000,000	$ 21,000,000	35,000,000	$ 43,000,000
Goodwill impairment charges	0
Trademarks and Distribution Networks [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles			35,000,000
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	1,221,000,000		1,221,000,000		1,488,000,000
Amortizable intangible assets, Accumulated Amortization	502,000,000		502,000,000		608,000,000
Amortizable intangible assets, Net	719,000,000		$ 719,000,000		880,000,000
Weighted-Average Remaining Useful Life			18 years
Distribution Networks [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	112,000,000		$ 112,000,000		141,000,000
Amortizable intangible assets, Accumulated Amortization	68,000,000		68,000,000		82,000,000
Amortizable intangible assets, Net	44,000,000		$ 44,000,000		59,000,000
Weighted-Average Remaining Useful Life			8 years
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	107,000,000		$ 107,000,000		107,000,000
Amortizable intangible assets, Accumulated Amortization	41,000,000		41,000,000		37,000,000
Amortizable intangible assets, Net	$ 66,000,000		$ 66,000,000		$ 70,000,000
Weighted-Average Remaining Useful Life			10 years
Deconsolidation of RBH [Member] | Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Decrease in intangible assets			$ 275,000,000
Change in accumulated amortization			133,000,000
Deconsolidation of RBH [Member] | Distribution Networks [Member]
Finite-Lived Intangible Assets [Line Items]
Decrease in intangible assets			29,000,000
Change in accumulated amortization			$ 18,000,000