Acquisitions (Fair Values Of The Assets Acquired And Liabilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020
Business Acquisition [Line Items]
Trade accounts receivable	$ 65	$ 487	$ 9
Inventories	120	934	9
Property, plant and equipment	162	690	4
Goodwill	7,235	10,402	217
Other intangible assets, primarily technology, customer relationships and trade names	4,021	10,712	113
Trade accounts payable	(23)	(250)	(3)
Pension liabilities assumed	0	423	0
Deferred tax liabilities	(367)	(1,167)	0
Other assets and liabilities, net	(177)	(414)	(18)
Net assets acquired	11,036	20,971	331
Less: noncash consideration	(75)	0	0
Net cash consideration	10,961	20,971	331
Aldevron
Business Acquisition [Line Items]
Trade accounts receivable	46
Inventories	93
Property, plant and equipment	150
Goodwill	6,149
Other intangible assets, primarily technology, customer relationships and trade names	3,483
Trade accounts payable	(15)
Deferred tax liabilities	(249)
Other assets and liabilities, net	(73)
Net assets acquired	9,584
Less: noncash consideration	(23)
Net cash consideration	9,561
Other businesses acquired
Business Acquisition [Line Items]
Trade accounts receivable	19	5
Inventories	27	4
Property, plant and equipment	12	1
Goodwill	1,086	231	217
Other intangible assets, primarily technology, customer relationships and trade names	538	56
Trade accounts payable	(8)	(3)
Pension liabilities assumed		0
Deferred tax liabilities	(118)	(10)
Other assets and liabilities, net	(104)	(28)
Net assets acquired	1,452
Less: noncash consideration	(52)
Net cash consideration	$ 1,400	256	$ 331
Cytiva
Business Acquisition [Line Items]
Trade accounts receivable		482
Inventories		930
Property, plant and equipment		689
Goodwill		10,171
Other intangible assets, primarily technology, customer relationships and trade names		10,656
Trade accounts payable		(247)
Pension liabilities assumed		423		$ 400
Deferred tax liabilities		(1,157)
Other assets and liabilities, net		(386)
Net cash consideration		$ 20,715