CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 79	$ 85
Other comprehensive income (loss), net of taxes:
Net unrealized gains (losses) on securities without an allowance for credit losses	(552)	505
Net unrealized gains (losses) on securities with an allowance for credit losses	3	1
Derivatives qualifying as hedges	(7)	43
Change in the discount rate used to measure future policy benefits	649	(319)
Change in instrument-specific credit risk of market risk benefits	0	(1)
Foreign currency translation and other adjustments	(3)	2
Total other comprehensive income (loss)	90	231
Total comprehensive income (loss)	169	316
Less: comprehensive income (loss) attributable to noncontrolling interests	22	41
Total comprehensive income (loss) available to Genworth Financial, Inc.’s common stockholders	$ 147	$ 275