Intangible Assets (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 588	$ 585
Accumulated Amortization	474	463
Net Carrying Amount	114	122
Indefinite-lived Intangible Assets [Line Items]
Goodwill	1,076	1,070
Trademarks
Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	545	544
License agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	291	290
Accumulated Amortization	222	217
Net Carrying Amount	69	73
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	249	247
Accumulated Amortization	211	207
Net Carrying Amount	38	40
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	48	48
Accumulated Amortization	41	39
Net Carrying Amount	$ 7	$ 9