Intangible Assets (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense relating to all intangible assets	$ 16	$ 18
Amortization expense for remainder of the year	30
Intangible assets amortization expense, year one	27
Intangible assets amortization expense, year two	23
Intangible assets amortization expense, year three	16
Intangible assets amortization expense, year four	15
Intangible assets amortization expense, year five	$ 12