Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 31, 2018
Goodwill [Line Items]
Goodwill	$ 2,530	$ 2,218
Amortization of intangible assets	59	$ 35	$ 33
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Future amortization expense - 2019	50
Future amortization expense - 2020	50
Future amortization expense - 2021	50
Future amortization expense - 2022	50
Future amortization expense - 2023	$ 50
PCA Skin and Elta MD
Goodwill [Line Items]
Goodwill				$ 397
Other intangible assets				369
Trademarks | PCA Skin and Elta MD
Goodwill [Line Items]
Other intangible assets				231
Customer Relationships | PCA Skin and Elta MD
Goodwill [Line Items]
Other intangible assets				133
North America | PCA Skin and Elta MD
Goodwill [Line Items]
Goodwill				$ 397