Acquisitions Purchase Price (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		8 Months Ended
	Feb. 25, 2021	Jan. 15, 2021	Apr. 03, 2021	Mar. 28, 2020	Dec. 31, 2021	May 07, 2021
Business Acquisition [Line Items]
Net Cash Consideration			$ 1,343	$ 4
Purchase Price
Fair value of contingent consideration			$ 162
Net Assets Acquired [Abstract]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)			9 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)			6 years
Tradenames [Member]
Net Assets Acquired [Abstract]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in years)			3 years
European Viral Vector Manufacturing Business
Business Acquisition [Line Items]
Net Cash Consideration		$ 834
Purchase Price
Cash paid		853
Cash acquired		(19)
Total Purchase Price		834
Net Assets Acquired [Abstract]
Current assets		40
Property, plant and equipment		39
Goodwill		593
Other assets		19
Contract Liabilities		(59)
Deferred tax liabilities		(82)
Other liabilities assumed		(53)
Net Assets Acquired		834
European Viral Vector Manufacturing Business | Customer Relationships [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets		311
European Viral Vector Manufacturing Business | Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets		$ 26
Mesa Biotech
Business Acquisition [Line Items]
Net Cash Consideration	$ 406
Purchase Price
Cash paid	420
Fair value of contingent consideration	65
Cash acquired	(14)
Total Purchase Price	471
Net Assets Acquired [Abstract]
Current assets	54
Property, plant and equipment	2
Goodwill	248
Other assets	3
Deferred tax liabilities	(68)
Other liabilities assumed	(33)
Net Assets Acquired	471
Mesa Biotech | Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	263
Mesa Biotech | Tradenames [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets	$ 2
Other [Member]
Purchase Price
Cash paid			$ 107
Fair value of contingent consideration			97
Cash acquired			(4)
Total Purchase Price			200
Net Assets Acquired [Abstract]
Current assets			8
Property, plant and equipment			1
Goodwill			83
Other assets			1
Contract Liabilities			(1)
Other liabilities assumed			(7)
Net Assets Acquired			200
Other [Member] | Customer Relationships [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			3
Other [Member] | Product Technology [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			110
Other [Member] | Tradenames [Member]
Net Assets Acquired [Abstract]
Definite-lived intangible assets			$ 2
Subsequent Event [Member] | PPD, Inc [Member]
Business Acquisition [Line Items]
Percent of PPD's outstanding shares that have approved the proposed acquisition						60.00%
Forecast [Member] | Subsequent Event [Member] | PPD, Inc [Member]
Business Acquisition [Line Items]
Business Acquisition, Share Price					$ 47.50
Purchase Price
Cash paid					$ 17,400
Debt assumed					$ 3,500