Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (213)	$ 140	$ (437)	$ 465
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	562	798	1,460	3,223
Impairments	0	0	0	2
Pension and other postretirement benefits liability	0	(1)	(2)	(3)
Other comprehensive income (loss), before tax	562	797	1,458	3,222
Income tax expense (benefit) related to items of other comprehensive income (loss)	118	167	306	675
Other comprehensive income (loss), after tax	444	630	1,152	2,547
Comprehensive income (loss)	231	770	715	3,012
Less: Comprehensive income (loss) attributable to noncontrolling interest	106	19	33	44
Comprehensive income (loss) attributable to Voya Financial, Inc.	$ 125	$ 751	$ 682	$ 2,968