Intangible Assets (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 597	$ 606
Accumulated Amortization	443	433
Net Carrying Amount	154	173
Indefinite-lived Intangible Assets [Line Items]
Goodwill	1,096	1,108
Trademarks
Indefinite-lived Intangible Assets [Line Items]
Unamortized Intangible Assets	552	551
License agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	295	298
Accumulated Amortization	203	193
Net Carrying Amount	92	105
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	253	257
Accumulated Amortization	204	204
Net Carrying Amount	49	53
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	49	51
Accumulated Amortization	36	36
Net Carrying Amount	$ 13	$ 15