Intangible Assets (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense relating to all intangible assets	$ 10	$ 14	$ 26	$ 32
Amortization expense for remainder of the year	18		18
Intangible assets amortization expense, year one	26		26
Intangible assets amortization expense, year two	21		21
Intangible assets amortization expense, year three	15		15
Intangible assets amortization expense, year four	14		14
Intangible assets amortization expense, year five	$ 12		$ 12