Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Unappropriated	Total Voya Financial, Inc. Shareholders' Equity	Noncontrolling Interest
Beginning balance at Dec. 31, 2018	$ 8,941	$ 0	$ 3	$ (4,981)	$ 24,316	$ 607	$ (11,732)	$ 8,213	$ 728
Comprehensive income (loss):
Net income (loss)	73	0	0	0	0	0	74	74	(1)
Other comprehensive income (loss), after tax	1,016	0	0	0	0	1,016	0	1,016	0
Less: Comprehensive income (loss) attributable to noncontrolling interest	(1)								(1)
Comprehensive income (loss)	1,089							1,090
Common stock issuance	2	0	0	0	2	0	0	2	0
Common stock acquired - Share repurchase	(250)	0	0	(200)	(50)	0	0	(250)	0
Dividends on preferred stock	(10)	0	0	0	0	0	(10)	(10)	0
Dividends on common stock	(1)	0	0	0	(1)	0	0	(1)	0
Share-based compensation	21	0	0	(22)	43	0	0	21	0
Contributions from (Distributions to) noncontrolling interest, net	14	0	0	0	0	0	0	0	14
Ending Balance at Mar. 31, 2019	9,806	0	3	(5,203)	24,310	1,966	(12,011)	9,065	741
Increase (Decrease) in Stockholders' Equity
Adoption of ASU | Accounting Standards Update 2018-02	0	0	0	0	0	343	(343)	0	0
Beginning balance at Dec. 31, 2019	10,230	0	2	(460)	11,184	3,331	(4,649)	9,408	822
Comprehensive income (loss):
Net income (loss)	(78)	0	0	0	0	0	(84)	(84)	6
Other comprehensive income (loss), after tax	(1,490)	0	0	0	0	(1,490)	0	(1,490)	0
Less: Comprehensive income (loss) attributable to noncontrolling interest	6								6
Comprehensive income (loss)	(1,568)							(1,574)
Common stock issuance	2	0	0	0	2	0	0	2	0
Common stock acquired - Share repurchase	(366)	0	0	(406)	40	0	0	(366)	0
Dividends on preferred stock	(14)	0	0	0	(14)	0	0	(14)	0
Dividends on common stock	(20)	0	0	0	(20)	0	0	(20)	0
Share-based compensation	24	0	0	(16)	40	0	0	24	0
Contributions from (Distributions to) noncontrolling interest, net	10	0	0	0	0	0	0	0	10
Ending Balance at Mar. 31, 2020	8,265	0	2	(882)	11,232	1,841	(4,766)	7,427	838
Increase (Decrease) in Stockholders' Equity
Adoption of ASU | Accounting Standards Update 2016-13	$ (33)	$ 0	$ 0	$ 0	$ 0	$ 0	$ (33)	$ (33)	$ 0