Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (78)	$ 73
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	(1,884)	1,284
Impairments	0	1
Pension and other postretirement benefits liability	(1)	(1)
Other comprehensive income (loss), before tax	(1,885)	1,284
Income tax expense (benefit) related to items of other comprehensive income (loss)	(395)	268
Other comprehensive income (loss), after tax	(1,490)	1,016
Comprehensive income (loss)	(1,568)	1,089
Less: Comprehensive income (loss) attributable to noncontrolling interest	6	(1)
Comprehensive income (loss) attributable to Voya Financial, Inc.	$ (1,574)	$ 1,090