Revenue - Revenue by Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue from External Customer [Line Items]
Revenues	$ 1,564	$ 1,480	$ 1,415	$ 1,366	$ 1,460	$ 1,347	$ 1,269	$ 1,231	$ 5,825	$ 5,307	$ 4,888
Contract Manufacturing and Human Health Diagnostics [Member]
Revenue from External Customer [Line Items]
Revenues									58	44	51
United States
Revenue from External Customer [Line Items]
Revenues									2,877	2,620	2,447
AUSTRALIA
Revenue from External Customer [Line Items]
Revenues									189	176	157
BRAZIL
Revenue from External Customer [Line Items]
Revenues									295	300	245
CANADA
Revenue from External Customer [Line Items]
Revenues									203	184	173
CHINA
Revenue from External Customer [Line Items]
Revenues									211	174	145
FRANCE
Revenue from External Customer [Line Items]
Revenues									130	121	117
GERMANY
Revenue from External Customer [Line Items]
Revenues									147	137	125
ITALY
Revenue from External Customer [Line Items]
Revenues									104	89	83
JAPAN
Revenue from External Customer [Line Items]
Revenues									149	138	127
MEXICO
Revenue from External Customer [Line Items]
Revenues									100	86	76
SPAIN
Revenue from External Customer [Line Items]
Revenues									110	93	82
UNITED KINGDOM
Revenue from External Customer [Line Items]
Revenues									181	149	151
Other developed markets
Revenue from External Customer [Line Items]
Revenues									361	339	302
Other emerging markets
Revenue from External Customer [Line Items]
Revenues									710	657	607
Total Geographical Area
Revenue from External Customer [Line Items]
Revenues									$ 5,767	$ 5,263	$ 4,837