Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (146)	$ 252	$ (224)	$ 325
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	2,782	1,141	898	2,425
Impairments	0	1	0	2
Pension and other postretirement benefits liability	(1)	(1)	(2)	(2)
Other comprehensive income (loss), before tax	2,781	1,141	896	2,425
Income tax expense (benefit) related to items of other comprehensive income (loss)	583	240	188	508
Other comprehensive income (loss), after tax	2,198	901	708	1,917
Comprehensive income (loss)	2,052	1,153	484	2,242
Less: Comprehensive income (loss) attributable to noncontrolling interest	(79)	26	(73)	25
Comprehensive income (loss) attributable to Voya Financial, Inc.	$ 2,131	$ 1,127	$ 557	$ 2,217