Goodwill and Other Intangibles - Amortized Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,196	$ 1,048
Accumulated Amortization	(921)	(816)
Net	275	232
Amortization expense	103	97	$ 184
Current technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	578	514
Accumulated Amortization	(508)	(470)
Net	70	44
Customer and other relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	575	493
Accumulated Amortization	(371)	(305)
Net	204	188
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	43	41
Accumulated Amortization	(42)	(41)
Net	$ 1	$ 0