Acquisitions Purchase Price (Details) - USD ($) $ in Millions		6 Months Ended	12 Months Ended
	Apr. 30, 2019	Jun. 29, 2019	Dec. 31, 2018
Net Assets Acquired [Abstract]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)		14 years
Customer Relationships [Member]
Net Assets Acquired [Abstract]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)		14 years
Product Technology [Member]
Net Assets Acquired [Abstract]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)		13 years
Tradenames [Member]
Net Assets Acquired [Abstract]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)		2 years
Brammer Bio [Member]
Purchase Price
Payments to Acquire Businesses, Gross	$ 1,709
Cash acquired	(36)
Total Purchase Price	1,673
Net Assets Acquired [Abstract]
Current assets	52
Property, plant and equipment	148
Goodwill	952
Other assets	49
Contract Liabilities	(110)
Deferred tax liabilities	(105)
Other liabilities assumed	(108)
Net Assets Acquired	1,673
Revenue Reported by Acquired Entity			$ 140
Goodwill, Expected Tax Deductible Amount	411
Brammer Bio [Member] | Customer Relationships [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	744
Brammer Bio [Member] | Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	44
Brammer Bio [Member] | Tradenames [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	$ 7
Other [Member]
Purchase Price
Total Purchase Price		$ 14