Revenue - Revenue by Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue from External Customer [Line Items]
Revenue	$ 1,990	$ 1,786	$ 5,809	$ 4,868
United States
Revenue from External Customer [Line Items]
Revenue	1,065	996	3,002	2,605
Australia
Revenue from External Customer [Line Items]
Revenue	70	60	196	154
Brazil
Revenue from External Customer [Line Items]
Revenue	78	62	227	181
Canada
Revenue from External Customer [Line Items]
Revenue	56	50	169	144
Chile
Revenue from External Customer [Line Items]
Revenue	32	24	100	72
China
Revenue from External Customer [Line Items]
Revenue	72	66	289	198
France
Revenue from External Customer [Line Items]
Revenue	31	29	98	82
Germany
Revenue from External Customer [Line Items]
Revenue	47	38	135	112
Italy
Revenue from External Customer [Line Items]
Revenue	30	28	87	63
Japan
Revenue from External Customer [Line Items]
Revenue	43	39	140	133
Mexico
Revenue from External Customer [Line Items]
Revenue	31	26	98	84
Spain
Revenue from External Customer [Line Items]
Revenue	33	31	97	83
United Kingdom
Revenue from External Customer [Line Items]
Revenue	61	44	173	125
Other developed markets
Revenue from External Customer [Line Items]
Revenue	127	105	350	282
Other emerging markets
Revenue from External Customer [Line Items]
Revenue	193	165	591	490
Total geographical area
Revenue from External Customer [Line Items]
Revenue	1,969	1,763	5,752	4,808
Contract manufacturing & human health
Revenue from External Customer [Line Items]
Revenue	$ 21	$ 23	$ 57	$ 60