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The cash inflow from a segregated fund account during the period.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash outflow for principal payment on finance lease.

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The increase (decrease) during the period in the carrying amount of assets, which may include but are not limited to cash and investments, received as collateral pertaining to securities loaned to a counterparty to the transaction. Includes the change during the period in any unrealized gain or loss on such investments.

No definition available.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The net cash outflow or inflow from derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments.

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Amount of cash (inflow) outflow from investing activities classified as other.

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The net amount paid (received) by the reporting entity through acquisition or sale and maturities of short-term investments with an original maturity that is three months or less which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.

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The cash outflow to reacquire common stock during the period.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity.

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Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

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Aggregate cash payments for a combination of transactions that are classified as investing activities in which assets, which may include securities, other types of investments, or productive assets, are purchased from third-party sellers. This element can be used by entities to aggregate payments for all asset purchases that are classified as investing activities.

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Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash outflow to acquire equity securities classified as available-for-sale securities, because they are not classified as trading securities.

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No definition available.

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Cash outflow related to the acquisition or continued holding of limited partnership interests held for investment purposes.

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The cash outflow from the purchase of receivables arising from the mortgage note on real estate.

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The cash inflow from parent as a source of financing that is recorded as additional paid in capital.

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The cash inflow from the additional capital contribution to the entity.

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Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.

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Cash inflow received as distributions, returns of capital, or sale proceeds from partnership interests held for investment purposes.

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Amount of cash inflow (outflow) from (to) a noncontrolling interest. Excludes dividends paid to the noncontrolling interest.

Name:	us-gaap_ProceedsFromPaymentsToMinorityShareholders
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The cash inflow from a borrowing net of the cash outflow from repayment of a borrowing having initial term of repayment within three months.

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash inflow associated with the sale of equity securities classified as available-for-sale securities.

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The cash inflow from Sales of Loans Held For Investment.

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Amount of cash outflow for the payment of debt classified as other, maturing within one year or the operating cycle, if longer.

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The cash outflow for a segregated fund account during the period.

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Borrowings of Consolidated Investment Entities

No definition available.

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Intercompany Transaction, Capital Contributions to Subsidiaries

No definition available.

Name:	voya_IntercompanyTransactionCapitalContributionsToSubsidiaries
Namespace Prefix:	voya_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Intercompany Transaction, Return of Capital Contributions from Subsidiaries

No definition available.

Name:	voya_IntercompanyTransactionReturnOfCapitalContributionsFromSubsidiaries
Namespace Prefix:	voya_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Payments for Return of Capital Contributions to Parent

No definition available.

Name:	voya_PaymentsForReturnOfCapitalContributionsToParent
Namespace Prefix:	voya_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

Name:	voya_ProceedsFromSaleOfMaturityDisposalRedemptionAbstract
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Data Type:	xbrli:stringItemType
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Repayment Of Borrowings Of Noncontrolling Interests

No definition available.

Name:	voya_RepaymentOfBorrowingsOfNoncontrollingInterests
Namespace Prefix:	voya_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Settlements on Deposit Contracts

No definition available.

Name:	voya_SettlementsonDepositContracts
Namespace Prefix:	voya_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Name:	srt_ConsolidationItemsAxis=srt_ConsolidationEliminationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ConsolidatedEntitiesAxis=srt_GuarantorSubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: