Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 2,917		$ 2,917		$ 2,803
Finite-lived intangible assets, accumulated amortization	(1,321)		(1,321)		(1,129)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	1,596		1,596		1,674
Total indefinite-lived intangible assets	198		198		216
Intangible Assets, gross carrying amount	3,115		3,115		3,019
Identifiable intangible assets, less accumulated amortization	1,794		1,794		1,890
Amortization of intangible assets	56	$ 60	178	$ 176
Trademarks and Trade Names
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets	104		104		104
In Process Research and Development
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets	87		87		105
Product Rights
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Total indefinite-lived intangible assets	7		7		7
Developed Technology Rights
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	2,009		2,009		1,938
Finite-lived intangible assets, accumulated amortization	(784)		(784)		(657)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	1,225		1,225		1,281
Brands
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	190		190		201
Trademarks and Trade Names
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	429		429		424
Finite-lived intangible assets, accumulated amortization	(239)		(239)		(223)
Other Intangible Assets
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	479		479		441
Finite-lived intangible assets, accumulated amortization	(298)		(298)		(249)
Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization	$ 181		$ 181		$ 192