Goodwill and Other Intangible Assets (Summary of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Goodwill and Other Intangible Assets
Accumulated Amortization	$ (759)	$ (737)
Intangible Assets Gross, Carrying Amount	1,900	1,911
Intangible Assets, Net Intangibles	1,141	1,174
Amortization	35
Customer and distributor relationships
Goodwill and Other Intangible Assets
Carrying Amount	931	945
Accumulated Amortization	(361)	(352)
Net Intangibles	570	593
Proprietary technology and patents
Goodwill and Other Intangible Assets
Carrying Amount	200	204
Accumulated Amortization	(113)	(111)
Net Intangibles	87	93
Trademarks
Goodwill and Other Intangible Assets
Carrying Amount	145	148
Accumulated Amortization	(54)	(52)
Net Intangibles	91	96
Software
Goodwill and Other Intangible Assets
Carrying Amount	442	428
Accumulated Amortization	(215)	(206)
Net Intangibles	227	222
Other
Goodwill and Other Intangible Assets
Carrying Amount	17	20
Accumulated Amortization	(16)	(16)
Net Intangibles	1	4
Indefinite-lived intangibles
Goodwill and Other Intangible Assets
Accumulated Amortization	0	0
Indefinite-lived intangibles	$ 165	$ 166