Discontinued Operations (Components Of Income Related To Discontinued Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures
Sales		$ 2,610	$ 2,845
Cost of sales		(1,177)	(1,243)
Selling, general and administrative expenses		(1,095)	(1,081)
Research and development expenses		(152)	(172)
Other income (expense), net		2	3
Interest expense		(9)	(21)
Income from discontinued operations before income taxes		179	331
Gain on disposition of Envista before income taxes		451	0
Earnings from discontinued operations before income taxes		630	331
Income taxes		(41)	(86)
Earnings from discontinued operations, net of income taxes		589	245
Net earnings attributable to noncontrolling interest		(13)	0
Net earnings from discontinued operations attributable to common stockholders	$ 0	$ 576	$ 245