Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

+ Details

Name:	us-gaap_LiabilitiesForGuaranteesOnLongDurationContractsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Rate of guaranteed minimum return on deposits made to contracts reported in separate accounts maintained by an insurance entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=117418410&loc=d3e7104-158389

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 80
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117420044&loc=d3e19393-158473

+ Details

Name:	us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteedMinimumReturnRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Sum of the amount of guaranteed minimum benefits the ceding insurer expects to recover on insurance policies ceded to other insurance entities as of the balance sheet date for all guaranteed benefit types.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 80
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=117420044&loc=d3e19393-158473

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=117418410&loc=d3e7104-158389

+ Details

Name:	us-gaap_ReinsuranceRecoverableGuaranteeBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_GuaranteedInsuranceContractTypeOfGuaranteeAxis=voya_StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=voya_VariableLifeAndUniversalLifeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsHeldforsaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Guaranteed Benefit Features - Guaranteed Death and Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2017
Stabilizer and MCGs
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Guaranteed credited rates	3.00%
Variable Life and Universal Life
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Reinsurance on additional liability balance	$ 1,005	$ 899	$ 906	$ 671
Variable Life and Universal Life \| Held for sale
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Reinsurance on additional liability balance	$ 569	$ 552	$ 603	$ 521