Voya Financial (VOYA) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2015	1-May-15
Document and Entity Information [Abstract]
Entity Registrant Name	Voya Financial, Inc.
Entity Central Index Key	1535929
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		228,963,054

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Investments:
Fixed maturities, available-for-sale, at fair value (amortized cost of $64,657.0 as of 2015 and $64,045.0 as of 2014)	$71,417.40	$69,910.30
Fixed maturities, at fair value using the fair value option	3,675.30	3,564.50
Equity securities, available-for-sale, at fair value (cost of $251.0 as of 2015 and $242.0 as of 2014)	283.6	271.8
Short-term investments	1,615.50	1,711.40
Mortgage loans on real estate, net of valuation allowance of $2.7 as of 2015 and $2.8 as of 2014	10,194.50	9,794.10
Policy loans	2,074.10	2,104
Limited partnerships/corporations	375.5	363.2
Derivatives	2,127	1,819.60
Other investments	97	110.3
Securities pledged (amortized cost of $1,078.8 as of 2015 and $1,089.3 as of 2014)	1,209.70	1,184.60
Total investments	93,069.60	90,833.80
Cash and cash equivalents	1,875.40	2,530.90
Short-term investments under securities loan agreements, including collateral delivered	993.7	827
Accrued investment income	927.2	891.7
Reinsurance recoverable	7,048.80	7,116.90
Deferred policy acquisition costs and Value of business acquired	4,244.30	4,570.90
Sales inducements to contract holders	239.9	253.6
Deferred income taxes	1,035.40	1,320.60
Goodwill and other intangible assets	276.3	284.4
Other assets	1,003.50	990.6
Limited partnerships/corporations, at fair value	3,852.50	3,727.30
Cash and cash equivalents	299.7	710.4
Corporate loans, at fair value using the fair value option	7,040.10	6,793.10
Other assets	102.4	92.4
Assets held in separate accounts	107,039.40	106,007.80
Total assets	229,048.20	226,951.40
Liabilities and Shareholder's Equity
Future policy benefits	16,037.60	15,691.20
Contract owner account balances	69,692.60	69,319.50
Payables under securities loan agreements, including collateral held	1,971.90	1,445
Long-term debt	3,516	3,515.70
Funds held under reinsurance agreements	1,162.20	1,159.60
Derivatives	974.3	849.3
Pension and other postretirement provisions	808.1	826.2
Current income taxes	4.1	84.8
Other liabilities	1,181.40	1,333.20
Collateralized loan obligations notes, at fair value using the fair value option	6,408.90	6,838.10
Other liabilities	1,585	1,357.80
Liabilities related to separate accounts	107,039.40	106,007.80
Total liabilities	210,381.50	208,428.20
Shareholder's equity:
Common stock ($0.01 par value per share; 900,000,000 shares authorized, 265,197,553 and 263,653,468 shares issued as of 2015 and 2014, respectively; 229,048,002 and 241,875,485 shares outstanding as of 2015 and 2014, respectively)	2.7	2.6
Treasury stock (at cost; 36,149,551 and 21,777,983 shares as of 2015 and 2014, respectively)	-1,440.70	-807
Additional paid-in capital	23,654.20	23,650.10
Accumulated other comprehensive income (loss)	3,531.20	3,103.70
Appropriated-consolidated investment entities	31	20.4
Unappropriated	-9,676.40	-9,861.90
Total Voya Financial, Inc. shareholders' equity	16,102	16,107.90
Noncontrolling interest	2,564.70	2,415.30
Total shareholders' equity	18,666.70	18,523.20
Total liabilities and shareholders' equity	$229,048.20	$226,951.40

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets Parenthetical (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]
Fixed maturities, available-for-sale, amortized cost	$64,657	$64,045
Equity securities, available-for-sale, cost	251	242
Mortgage loans on real estate, valuation allowance	2.7	2.8
Securities pledged amortized cost	$1,078.80	$1,089.30
Common stock, shares authorized	900,000,000	900,000,000
Common stock, shares issued	265,197,553	263,653,468
Common stock, shares outstanding	229,048,002	241,875,485
Treasury stock, shares	36,149,551	21,777,983
Common stock, par value	$0.01	$0.01

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	0 Months Ended	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	7-May-13	Mar. 31, 2015	Mar. 31, 2014
Revenues:
Net investment income		$1,174.60	$1,145.60
Fee income		899.8	931.8
Premiums		608.8	600.9
Net realized capital gains (losses):
Total other-than-temporary impairments		-2.6	-3.3
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)		2.3	0
Net other-than-temporary impairments recognized in earnings		-4.9	-3.3
Other net realized capital gains (losses)		-259.6	-187.3
Total net realized capital gains (losses)		-264.5	-190.6
Other revenue		102.7	105.5
Net investment income		96.9	81.5
Changes in fair value related to collateralized loan obligations		7.7	-3.8
Total revenues		2,626	2,670.90
Benefits and expenses:
Policyholder benefits		887	865
Interest credited to contract owner account balances		484.7	493.1
Operating expenses		768.8	789.5
Net amortization of Deferred policy acquisition costs and Value of business acquired		118.1	126.1
Interest expense		47.4	47.6
Interest expense		62.5	46.2
Other expense		1.2	1.1
Total benefits and expenses		2,369.70	2,368.60
Income (loss) before income taxes		256.3	302.3
Income tax expense (benefit)		44.7	30.7
Net income (loss)		211.6	271.6
Less: Net income (loss) attributable to noncontrolling interest		26.1	13.5
Net income (loss) available to Voya Financial, Inc.'s common shareholders		$185.50	$258.10
Net income (loss) available to Voya Financial, Inc.'s common shareholders per common share:
Basic		$0.78	$0.99
Diluted		$0.77	$0.98
Cash dividends declared per share of common stock	$0.01	$0.01	$0.01

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$211.60	$271.60
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	654.4	1,110.10
Other-than-temporary impairments	5.7	15.6
Pension and other postretirement benefits liability	-3.4	-3.4
Other comprehensive income (loss), before tax	656.7	1,122.30
Income tax expense (benefit) related to items of other comprehensive income (loss)	229.2	393.9
Other comprehensive income (loss), after tax	427.5	728.4
Comprehensive income (loss)	639.1	1,000
Less: Comprehensive income (loss) attributable to noncontrolling interest	26.1	13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	$613	$986.50

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Changes in Shareholders' Equity (USD $)	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Deficit), Appropriated	Retained Earnings (Deficit), Unappropriated	Shareholders' Equity	Noncontrolling Interest
In Millions, unless otherwise specified
Beginning balance at Dec. 31, 2013	$15,514	$2.60	$0	$23,563.70	$1,849.10	$18.40	($12,161.60)	$13,272.20	$2,241.80
Comprehensive income (loss):
Net income (loss)	271.6	0	0	0	0	0	258.1	258.1	13.5
Other comprehensive income (loss), after tax	728.4	0	0	0	728.4	0	0	728.4	0
Total comprehensive income (loss)	1,000							986.5	13.5
Reclassification of noncontrolling interest	0	0	0	0	0	-3.2	0	-3.2	3.2
Common stock acquired - Share repurchased	-258.9	0	-258.9	0	0	0	0	-258.9	0
Dividends on common stock	-2.6	0	0	-2.6	0	0	0	-2.6	0
Share-based compensation	7.5	0	-10.9	18.4	0	0	0	7.5	0
Contributions from (Distributions to) noncontrolling interest, net	108	0	0	0	0	0	0	0	108
Ending balance at Mar. 31, 2014	16,368	2.6	-269.8	23,579.50	2,577.50	15.2	-11,903.50	14,001.50	2,366.50
Beginning balance at Dec. 31, 2014	18,523.20	2.6	-807	23,650.10	3,103.70	20.4	-9,861.90	16,107.90	2,415.30
Comprehensive income (loss):
Net income (loss)	211.6	0	0	0	0	0	185.5	185.5	26.1
Other comprehensive income (loss), after tax	427.5	0	0	0	427.5	0	0	427.5	0
Total comprehensive income (loss)	639.1							613	26.1
Reclassification of noncontrolling interest	0	0	0	0	0	10.6	0	10.6	-10.6
Common stock acquired - Share repurchased	-630.9	0	-630.9	0	0	0	0	-630.9	0
Dividends on common stock	-2.4	0	0	-2.4	0	0	0	-2.4	0
Share-based compensation	3.8	0.1	-2.8	6.5	0	0	0	3.8	0
Contributions from (Distributions to) noncontrolling interest, net	133.9	0	0	0	0	0	0	0	133.9
Ending balance at Mar. 31, 2015	$18,666.70	$2.70	($1,440.70)	$23,654.20	$3,531.20	$31	($9,676.40)	$16,102	$2,564.70

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Cash Flows [Abstract]
Net cash provided by operating activities	$1,053.70	$786.60
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	2,246.30	2,629.70
Equity securities, available-for-sale	7.9	47.7
Mortgage loans on real estate	312.8	307.4
Limited partnerships/corporations	33.3	60.9
Acquisition of:
Fixed maturities	-2,937.40	-3,057.20
Equity securities, available-for-sale	-14.3	-7.4
Mortgage loans on real estate	-713.3	-252.9
Limited partnerships/corporations	-33.7	-18.4
Short-term investments, net	95.9	1.9
Policy loans, net	29.9	27.3
Derivatives, net	-85.3	-178.6
Other investments, net	13.5	2
Sales from consolidated investment entities	767.6	571.8
Purchases within consolidated investment entities	-1,320.70	-1,258.80
Collateral received (delivered), net	360.2	89.4
Purchases of fixed assets, net	-8.6	-8.7
Net cash used in investing activities	-1,245.90	-1,043.90
Cash Flows from Financing Activities:
Deposits received for investment contracts	1,864.30	2,500
Maturities and withdrawals from investment contracts	-1,760.80	-2,809.70
Debt issuance costs	-6.2	-16.7
Borrowings of consolidated investment entities	350	28.4
Repayments of borrowings of consolidated investment entities	-15.9	0
Contributions from (distributions to) participants in consolidated investment entities, net	-268.9	466.9
Excess tax benefits on share-based compensation	1.3	0
Share-based compensation	-2.7	0
Common stock acquired - Share repurchase	-622	-250
Dividends paid	-2.4	-2.6
Net cash used in financing activities	-463.3	-83.7
Net decrease in cash and cash equivalents	-655.5	-341
Cash and cash equivalents, beginning of year	2,530.90	2,840.80
Cash and cash equivalents, end of year	$1,875.40	$2,499.80

Business_Basis_of_Presentation

Business, Basis of Presentation and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Business, Basis of Presentation and Significant Accounting Policies	Business, Basis of Presentation and Significant Accounting Policies
	Business
	Voya Financial, Inc. (which changed its name from ING U.S., Inc. on April 7, 2014) and its subsidiaries (collectively the “Company”) is a financial services organization in the United States that offers a broad range of retirement services, annuities, investment management services, mutual funds, life insurance, group insurance and supplemental health products. The Company provides its principal products and services in three ongoing businesses (Retirement Solutions, Investment Management and Insurance Solutions) and reports results through five ongoing operating segments, including Retirement, Annuities, Investment Management, Individual Life and Employee Benefits. Effective April 20, 2015, the Company will provide its principal products and services in two ongoing businesses - Retirement and Investment Solutions; and Insurance Solutions. This change does not affect the Company's five ongoing operating segments. The Company also has a Corporate segment, which includes the financial data not directly related to the businesses, and Closed Block segments. See the Segments Note to these Condensed Consolidated Financial Statements.
	Prior to May 2013, the Company was an indirect, wholly-owned subsidiary of ING Groep N.V. (“ING Group” or “ING”), a global financial services holding company based in The Netherlands, with American Depository Shares listed on the New York Stock Exchange. In 2009, ING Group announced the anticipated separation of its global banking and insurance businesses, including the divestiture of the Company. On April 11, 2013, the Company announced plans to rebrand as Voya Financial. On May 2, 2013, the common stock of Voya Financial, Inc. began trading on the New York Stock Exchange under the symbol “VOYA.” On May 7, 2013 and May 31, 2013, Voya Financial, Inc. completed its initial public offering of common stock, including the issuance and sale by Voya Financial, Inc. of 30,769,230 shares of common stock and the sale by ING Insurance International B.V. (“ING International”), an indirect wholly owned subsidiary of ING Group and previously the sole stockholder of Voya Financial, Inc., of 44,201,773 shares of outstanding common stock of Voya Financial, Inc. (collectively, the “IPO”). On September 30, 2013, ING International transferred all of its remaining shares of Voya Financial, Inc. common stock to ING Group.
	On October 29, 2013, ING Group completed a sale of 37,950,000 shares of common stock of the Company in a registered public offering (“Secondary Offering”), reducing ING Group's ownership in the Company to 57%.
	In 2014, ING Group completed sales of 82,783,006 shares of common stock of Voya Financial, Inc. in three registered public offerings throughout the year ("the 2014 Offerings"). In conjunction with each of these offerings, pursuant to the terms of share repurchase agreements between ING Group and Voya Financial, Inc., Voya Financial, Inc. acquired 19,447,847 shares of its common stock from ING Group (the “2014 Direct Share Repurchases”) (the 2014 Offerings and the 2014 Direct Share Repurchases collectively, the “2014 Transactions”). Upon completion of the 2014 Transactions, ING Group's ownership of Voya Financial, Inc. was reduced to approximately 19%.
	On March 9, 2015, ING Group completed a sale of 32,018,100 shares of common stock of Voya Financial, Inc. in a registered public offering (the “March 2015 Offering”). Also on March 9, 2015, pursuant to the terms of a share repurchase agreement between ING Group and Voya Financial, Inc., Voya Financial, Inc. acquired 13,599,274 shares of its common stock from ING Group (the “March 2015 Direct Share Repurchase”) (the March 2015 Offering and the March 2015 Direct Share Repurchase collectively, the “March 2015 Transactions”). Upon completion of the March 2015 Transactions, ING Group has exited its stake in Voya Financial, Inc. common stock. ING Group continues to hold warrants to purchase up to 26,050,846 shares of Voya Financial, Inc. common stock at an exercise price of $48.75, in each case subject to adjustments. As a result of the completion of the March 2015 Transactions, ING Group has satisfied the provisions of its agreement with the European Union regarding the divestment of its U.S. insurance and investment operations, which required ING Group to divest 100% of its ownership interest in Voya Financial, Inc. together with its subsidiaries by the end of 2016.
	Basis of Presentation
	The accompanying Condensed Consolidated Financial Statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and are unaudited. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. Those estimates are inherently subject to change and actual results could differ from those estimates.
	The Condensed Consolidated Financial Statements include the accounts of Voya Financial, Inc. and its subsidiaries, as well as partnerships (voting interest entities (“VOEs”)) in which the Company has control and variable interest entities (“VIEs”) for which the Company is the primary beneficiary. See the Consolidated Investment Entities Note to these Condensed Consolidated Financial Statements. Intercompany transactions and balances have been eliminated.
	The accompanying Condensed Consolidated Financial Statements reflect adjustments (including normal, recurring adjustments) necessary to present fairly the financial position of the Company as of March 31, 2015, its results of operations, comprehensive income, changes in shareholders' equity and statements of cash flows for the three months ended March 31, 2015 and 2014, in conformity with U.S. GAAP. Interim results are not necessarily indicative of full year performance. The December 31, 2014 Consolidated Balance Sheet is from the audited Consolidated Financial Statements included in the Company's Annual Report on Form 10-K, filed with the SEC. Therefore, these unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements included in the Company's Annual Report on Form 10-K.
	Adoption of New Pronouncements
	Repurchase Agreements
	In June 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-11, “Transfers and Servicing (Accounting Standards Codification (“ASC”) Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures” (“ASU 2014-11”), which (1) changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting, and (2) requires separate accounting for a transfer of a financial asset executed with a repurchase agreement with the same counterparty. This will result in secured borrowing accounting for the repurchase agreement. The amendments also require additional disclosures for certain transactions accounted for as a sale and for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions that are accounted for as secured borrowings.
	The provisions of ASU 2014-11 were adopted by the Company on January 1, 2015, with the exception of disclosure amendments for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions that are accounted for as secured borrowings, which are effective for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. The Company is currently in the process of determining the impact of adoption of the disclosure provisions of ASU 2014-11. The adoption of the January 1, 2015 provisions had no effect on the Company's financial condition, results of operations or cash flows.
	Future Adoption of Accounting Pronouncements
	Internal-Use Software
	In April 2015, the FASB issued ASU 2015-05, "Intangibles - Goodwill and Other-Internal-Use Software (ASC Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement" ("ASU 2015-05"), which clarifies that customers should account for software licenses included in cloud computing arrangements (ex. software as a service) consistent with the acquisition of other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract.
	The provisions of ASU 2015-05 are effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2015, with early adoption permitted. The amendments can be applied prospectively or retrospectively. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2015-05.
	Defined Benefit Plans
	In April 2015, the FASB issued ASU 2015-04, "Compensation - Retirement Benefits (ASC Topic 715): Practical Expedient for the Measurement Date of an Employer’s Defined Benefit Obligation and Plan Assets" ("ASU 2015-04"), which clarifies that if a contribution or significant event occurs between the month-end date used to measure defined benefit plans assets and obligations and an entity’s fiscal year end, the entity should adjust the measurement of defined benefit plan assets and obligations to reflect the effects of those contributions or significant events.
	The provisions of ASU 2015-04 are effective, prospectively, for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years, with early adoption permitted. The Company does not expect ASU 2015-04 to have an impact.
	Debt Issuance Costs
	In April 2015, the FASB issued ASU 2015-03, "Interest - Imputation of Interest (ASC Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs" ("ASU 2015-03"), which requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability.
	The provisions of ASU 2015-03 are effective, retrospectively, for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years, with early adoption permitted. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2015-03.
	Consolidation
	In February 2015, the FASB issued ASU 2015-02, “Consolidation (ASC Topic 810): Amendments to the Consolidation Analysis” (“ASU 2015-02”), which:
	•	Modifies the evaluation of whether limited partnerships and similar legal entities are VIEs or VOEs, including the requirement to consider the rights of all equity holders at risk to determine if they have the power to direct the entity’s most significant activities.
	•	Eliminates the presumption that a general partner should consolidate a limited partnership. Limited partnerships and similar entities will be VIEs unless the limited partners hold substantive kick-out rights or participating rights.
	•	Affects the consolidation analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships.
	•	Provides a new scope exception for registered money market funds and similar unregistered money market funds, and ends the deferral granted to investment companies from applying the VIE guidance.
	The provisions of ASU 2015-02 are effective for annual periods, and for interim periods within those annual periods, beginning after December 15, 2015, with early adoption permitted, using either a retrospective or modified retrospective approach. The Company is currently in the process of determining the impact of the adoption of the provisions of ASU 2015-02.
	Going Concern
	In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements-Going Concern (ASC Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” (“ASU 2014-15”), which requires management to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued. The provisions of ASU 2014-15 will not affect a company's financial condition, results of operation, or cash flows, but require disclosure if management determines there is substantial doubt, including management’s plans to alleviate or mitigate the conditions or events that raise substantial doubt.
	The provisions of ASU 2014-15 are effective for annual periods ending after December 15, 2016, and annual and interim periods thereafter. The Company does not expect ASU 2014-15 to have an impact.
	Collateralized Financing Entities
	In August 2014, the FASB issues ASU 2014-13, “Consolidation (ASC Topic 810): Measuring the Financial Assets and the Financial Liabilities of a Consolidated Collateralized Financing Entity” (“ASU 2014-13”), which allows an entity to elect to measure the financial assets and financial liabilities of a consolidated collateralized financing entity using either:
	•	ASC Topic 820, whereby both the financial assets and liabilities are measured using the requirements of ASC Topic 820, with any difference reflected in earnings and attributed to the reporting entity in the statement of operations.
	•	The measurement alternative, whereby both the financial assets and liabilities are measured using the more observable of the fair value of the financial assets and the fair value of the financial liabilities.
	The provisions of ASU 2014-13 are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015, with early adoption permitted. The Company is currently in the process of determining the impact of the adoption of the provisions of ASU 2014-13.
	Share-based Payments
	In June 2014, the FASB issued ASU 2014-12, “Compensation-Stock Compensation (ASC Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period“ (“ASU 2014-12”), which requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition and should not be reflected in estimating the grant-date fair value of the award. Compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved.
	The provisions of ASU 2014-12 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. The amendments can be applied prospectively or retrospectively. The Company does not expect ASU 2014-12 to have an impact on its financial condition or results of operations, as the guidance is consistent with that previously applied.
	Revenue from Contracts with Customers
	In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (ASC Topic 606)” (“ASU 2014-09”), which requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Revenue is recognized when, or as, the entity satisfies a performance obligation under the contract. The standard also requires disclosures regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.
	The provisions of ASU 2014-09 are effective retrospectively for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2014-09.
	Discontinued Operations and Disposals
	In April 2014, the FASB issued ASU 2014-08, “Presentation of Financial Statements (ASC Topic 205) and Property, Plant, and Equipment (ASC Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity” (“ASU 2014-08”), which requires the disposal of a component of an entity to be reported in discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on the entity's operations and financial results. The component should be reported in discontinued operations when it meets the criteria to be classified as held for sale, is disposed of by sale or is disposed of other than by sale.
	The amendments also require additional disclosures about discontinued operations, including disclosures about an entity’s significant continuing involvement with a discontinued operation and disclosures for a disposal of an individually significant component of an entity that does not qualify for discontinued operations.
	The provisions of ASU 2014-08 are effective for annual periods beginning after December 15, 2014 and for interim periods beginning after December 15, 2015. The amendments should be applied prospectively to disposals and classifications as held for sale that occur within those periods. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2014-08.

Investments_excluding_Consolid

Investments (excluding Consolidated Investment Entities)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investments	Investments (excluding Consolidated Investment Entities)
	Fixed Maturities and Equity Securities
	Available-for-sale and fair value option ("FVO") fixed maturities and equity securities were as follows as of March 31, 2015:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	3,071.50		$	709.8			$	0.1		$	—		$	3,781.20		$	—
	U.S. Government agencies and authorities	376.8			65.3				—			—			442.1			—
	State, municipalities and political subdivisions	754.3			44.5				0.7			—			798.1			—
	U.S. corporate securities	38,453.60			4,017.10				111.4			—			42,359.30			9.6
	Foreign securities(1):
	Government	864.9			56.2				9.8			—			911.3			—
	Other	14,744.90			1,141.20				84.4			—			15,801.70			—
	Total foreign securities	15,609.80			1,197.40				94.2			—			16,713.00			—
	Residential mortgage-backed securities:
	Agency	4,902.20			445.6				8.7			70.3			5,409.40			0.4
	Non-Agency	947.4			168.2				8.3			43.7			1,151.00			57.1
	Total Residential mortgage-backed securities	5,849.60			613.8				17			114			6,560.40			57.5
	Commercial mortgage-backed securities	3,897.00			290.7				1.8			—			4,185.90			6.7
	Other asset-backed securities	1,398.50			79.4				15.5			—			1,462.40			6.5
	Total fixed maturities, including securities pledged	69,411.10			7,018.00				240.7			114			76,302.40			80.3
	Less: Securities pledged	1,078.80			145.6				14.7			—			1,209.70			—
	Total fixed maturities	68,332.30			6,872.40				226			114			75,092.70			80.3
	Equity securities:
	Common stock	200.6			0.5				0.1			—			201			—
	Preferred stock	50.4			32.2				—			—			82.6			—
	Total equity securities	251			32.7				0.1			—			283.6			—
	Total fixed maturities and equity securities investments	$	68,583.30		$	6,905.10			$	226.1		$	114		$	75,376.30		$	80.3
	(1) Primarily U.S. dollar denominated.
	(2) Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
	(3) Represents Other-than-Temporary-Impairments ("OTTI") reported as a component of Other comprehensive income (loss).
	Available-for-sale and FVO fixed maturities and equity securities were as follows as of December 31, 2014:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	3,279.00		$	625.9			$	0.9		$	—		$	3,904.00		$	—
	U.S. Government agencies and authorities	376.1			59.8				—			—			435.9			—
	State, municipalities and political subdivisions	659.5			35.4				0.5			—			694.4			—
	U.S. corporate securities	37,425.50			3,479.20				163.9			—			40,740.80			10.2
	Foreign securities(1):
	Government	858.3			47				14			—			891.3			—
	Other	14,673.30			983.6				104			—			15,552.90			—
	Total foreign securities	15,531.60			1,030.60				118			—			16,444.20			—
	Residential mortgage-backed securities:
	Agency	4,983.30			421				13			72.5			5,463.80			0.4
	Non-Agency	989.4			168.9				8.6			43.3			1,193.00			62.1
	Total Residential mortgage-backed securities	5,972.70			589.9				21.6			115.8			6,656.80			62.5
	Commercial mortgage-backed securities	3,916.30			273.3				1.4			—			4,188.20			6.7
	Other asset-backed securities	1,538.10			74.3				17.3			—			1,595.10			6.6
	Total fixed maturities, including securities pledged	68,698.80			6,168.40				323.6			115.8			74,659.40			86
	Less: Securities pledged	1,089.30			109.2				13.9			—			1,184.60			—
	Total fixed maturities	67,609.50			6,059.20				309.7			115.8			73,474.80			86
	Equity securities:
	Common stock	191.5			0.5				0.2			—			191.8			—
	Preferred stock	50.5			29.5				—			—			80			—
	Total equity securities	242			30				0.2			—			271.8			—
	Total fixed maturities and equity securities investments	$	67,851.50		$	6,089.20			$	309.9		$	115.8		$	73,746.60		$	86
	(1) Primarily U.S. dollar denominated.
	(2) Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
	(3) Represents OTTI reported as a component of Other comprehensive income (loss).
	The amortized cost and fair value of fixed maturities, including securities pledged, as of March 31, 2015, are shown below by contractual maturity. Actual maturities may differ from contractual maturities as securities may be restructured, called or prepaid. Mortgage-backed securities ("MBS") and Other asset-backed securities ("ABS") are shown separately because they are not due at a single maturity date.
		Amortized			Fair
		Cost			Value
	Due to mature:
	One year or less	$	2,074.30		$	2,091.40
	After one year through five years	12,699.30			13,448.40
After five years through ten years	20,483.30			21,582.60
After ten years	23,009.10			26,971.30
Mortgage-backed securities	9,746.60			10,746.30
Other asset-backed securities	1,398.50			1,462.40
Fixed maturities, including securities pledged	$	69,411.10		$	76,302.40
The investment portfolio is monitored to maintain a diversified portfolio on an ongoing basis. Credit risk is mitigated by monitoring concentrations by issuer, sector and geographic stratification and limiting exposure to any one issuer.
As of March 31, 2015 and December 31, 2014, the Company did not have any investments in a single issuer, other than obligations of the U.S. Government and government agencies, with a carrying value in excess of 10% of the Company’s condensed consolidated Shareholders' equity.
The following tables set forth the composition of the U.S. and foreign corporate securities within the fixed maturity portfolio by industry category as of the dates indicated:
	Amortized			Gross				Gross			Fair
	Cost			Unrealized				Unrealized			Value
				Capital				Capital
				Gains				Losses
March 31, 2015
Communications	$	3,896.40		$	562.3			$	2		$	4,456.70
Financial	7,797.10			798.1				2.7			8,592.50
Industrial and other companies	30,762.70			2,517.40				168.4			33,111.70
Utilities	9,158.90			1,107.10				21			10,245.00
Transportation	1,583.40			173.4				1.7			1,755.10
Total	$	53,198.50		$	5,158.30			$	195.8		$	58,161.00
December 31, 2014
Communications	$	3,934.50		$	512.4			$	5.7		$	4,441.20
Financial	7,568.10			729.3				7.6			8,289.80
Industrial and other companies	30,055.80			2,109.30				231			31,934.10
Utilities	9,046.30			959.9				19.7			9,986.50
Transportation	1,494.10			151.9				3.9			1,642.10
Total	$	52,098.80		$	4,462.80			$	267.9		$	56,293.70
Fixed Maturities and Equity Securities
The Company's fixed maturities and equity securities are currently designated as available-for-sale, except those accounted for using the FVO. Available-for-sale securities are reported at fair value and unrealized capital gains (losses) on these securities are recorded directly in Accumulated other comprehensive income (loss) (“AOCI”) and presented net of related changes in Deferred policy acquisition costs (“DAC”), Value of business acquired (“VOBA”) and Deferred income taxes. In addition, certain fixed maturities have embedded derivatives, which are reported with the host contract on the Condensed Consolidated Balance Sheets.
The Company has elected the FVO for certain of its fixed maturities to better match the measurement of assets and liabilities in the Condensed Consolidated Statements of Operations. Certain collateralized mortgage obligations (“CMOs”), primarily interest-only and principal-only strips, are accounted for as hybrid instruments and valued at fair value with changes in the fair value recorded in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
The Company invests in various categories of CMOs, including CMOs that are not agency-backed, that are subject to different degrees of risk from changes in interest rates and defaults. The principal risks inherent in holding CMOs are prepayment and extension risks related to significant decreases and increases in interest rates resulting in the prepayment of principal from the underlying mortgages, either earlier or later than originally anticipated. As of March 31, 2015 and December 31, 2014, approximately 45.9% and 44.4%, respectively, of the Company's CMO holdings, such as interest-only or principal-only strips, were invested in those types of CMOs that are subject to more prepayment and extension risk than traditional CMOs.
Repurchase Agreements
The Company engages in dollar repurchase agreements with mortgage-backed securities ("dollar rolls") and repurchase agreements with other collateral types to increase its return on investments and improve liquidity. Such arrangements meet the requirements to be accounted for as financing arrangements. The Company also enters into reverse repurchase agreements. These transactions involve a purchase of securities and an agreement to sell substantially the same securities as those purchased. As of March 31, 2015 and December 31, 2014, the Company did not have any securities pledged in dollar rolls, repurchase agreement transactions or reverse repurchase agreements.
Securities Lending
The Company engages in securities lending whereby certain securities from its portfolio are loaned to other institutions for short periods of time. Initial collateral, primarily cash, is required at a rate of 102% of the market value of the loaned securities. For certain transactions, a lending agent may be used and the agent may retain some or all of the collateral deposited by the borrower and transfer the remaining collateral to the Company. Collateral retained by the agent is invested in liquid assets on behalf of the Company. The market value of the loaned securities is monitored on a daily basis with additional collateral obtained or refunded as the market value of the loaned securities fluctuates. As of March 31, 2015 and December 31, 2014, the fair value of loaned securities was $548.8 and $545.9, respectively, and is included in Securities pledged on the Condensed Consolidated Balance Sheets. As of March 31, 2015 and December 31, 2014, collateral retained by the lending agent and invested in liquid assets on the Company's behalf was $567.3 and $563.9, respectively, and recorded in Short-term investments under securities loan agreements, including collateral delivered on the Condensed Consolidated Balance Sheets. As of March 31, 2015 and December 31, 2014, liabilities to return collateral of $567.3 and $563.9, respectively, were included in Payables under securities loan agreements, including collateral held on the Condensed Consolidated Balance Sheets.
Unrealized Capital Losses
Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of March 31, 2015:
	Six Months or Less							More Than Six						More Than Twelve					Total
	Below Amortized Cost							Months and Twelve Months or Less						Months Below
								Below Amortized Cost						Amortized Cost
	Fair Value			Unrealized Capital Losses				Fair Value			Unrealized Capital Losses			Fair Value			Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
U.S. Treasuries	$	35.5		$	0.1			$	—		$	—		$	—		$	—	$	35.5	$	0.1
U.S. Government agencies and authorities	—			—				—			—			—			—		—		—
State, municipalities and political subdivision	29.6			0.3				—			—			1.5			0.4		31.1		0.7
U.S. corporate securities	1,737.00			51.7				254.7			18.8			615			40.9		2,606.70		111.4
Foreign	1,184.60			47				253.1			28.8			283.3			18.4		1,721.00		94.2
Residential mortgage-backed	240.5			1.8				25.5			0.3			417.1			14.9		683.1		17
Commercial mortgage-backed	34.8			0.6				—			—			2.7			1.2		37.5		1.8
Other asset-backed	33.5			—			*	10.5			—		*	225			15.5		269		15.5
Total	$	3,295.50		$	101.5			$	543.8		$	47.9		$	1,544.60		$	91.3	$	5,383.90	$	240.7
* Less than $0.1.
Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of December 31, 2014:
	Six Months or Less							More Than Six						More Than Twelve					Total
	Below Amortized Cost							Months and Twelve Months or Less						Months Below
								Below Amortized Cost						Amortized Cost
	Fair Value			Unrealized Capital Losses				Fair Value			Unrealized Capital Losses			Fair Value			Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
U.S. Treasuries	$	81.1		$	0.1			$	—		$	—		$	42.1		$	0.8	$	123.2	$	0.9
U.S. Government agencies and authorities	6.4			—			*	—			—			—			—		6.4		—		*
State, municipalities and political subdivision	43			0.1				—			—			1.6			0.4		44.6		0.5
U.S. corporate securities	2,477.90			65				76.3			3.6			2,708.40			95.3		5,262.60		163.9
Foreign	1,869.30			80.6				37.8			1.2			668.6			36.2		2,575.70		118
Residential mortgage-backed	319.6			1.7				59.9			1			645.7			18.9		1,025.20		21.6
Commercial mortgage-backed	120.7			0.5				3.1			0.9			—			—		123.8		1.4
Other asset-backed	126.4			0.2				6.4			—		*	232.1			17.1		364.9		17.3
Total	$	5,044.40		$	148.2			$	183.5		$	6.7		$	4,298.50		$	168.7	$	9,526.40	$	323.6
* Less than $0.1.
Of the unrealized capital losses aged more than twelve months, the average market value of the related fixed maturities was 94.4% and 96.2% of the average book value as of March 31, 2015 and December 31, 2014, respectively.
Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, for instances in which fair value declined below amortized cost by greater than or less than 20% for consecutive months as indicated in the tables below, were as follows as of the dates indicated:
	Amortized Cost							Unrealized Capital Losses						Number of Securities
	< 20%			> 20%				< 20%			> 20%			< 20%		> 20%
March 31, 2015
Six months or less below amortized cost	$	3,412.50		$	121.4			$	99.4		$	30.9		341		12
More than six months and twelve months or less below amortized cost	567			2.7				39			0.7			73		3
More than twelve months below amortized cost	1,512.90			8.1				67.8			2.9			324		6
Total	$	5,492.40		$	132.2			$	206.2		$	34.5		738		21
December 31, 2014
Six months or less below amortized cost	$	5,162.10		$	117.8			$	140.2		$	26.5		537		16
More than six months and twelve months or less below amortized cost	324.3			—			*	19.7			—		*	68		1
More than twelve months below amortized cost	4,237.20			8.6				134.1			3.1			493		7
Total	$	9,723.60		$	126.4			$	294		$	29.6		1,098		24
* Less than $0.1.
Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, by market sector for instances in which fair value declined below amortized cost by greater than or less than 20% were as follows as of the dates indicated:
	Amortized Cost							Unrealized Capital Losses						Number of Securities
	< 20%			> 20%				< 20%			> 20%			< 20%		> 20%
March 31, 2015
U.S. Treasuries	$	35.6		$	—			$	0.1		$	—		1		—
U.S. Government agencies and authorities	—			—				—			—			—		—
State, municipalities and political subdivision	30.8			1				0.4			0.3			6		1
U.S. corporate securities	2,669.30			48.8				99.9			11.5			207		4
Foreign	1,746.40			68.8				75.9			18.3			160		5
Residential mortgage-backed	696.4			3.7				15.2			1.8			283		7
Commercial mortgage-backed	35.5			3.8				0.6			1.2			8		1
Other asset-backed	278.4			6.1				14.1			1.4			73		3
Total	$	5,492.40		$	132.2			$	206.2		$	34.5		738		21
December 31, 2014
U.S. Treasuries	$	124.1		$	—			$	0.9		$	—		8		—
U.S. Government agencies and authorities	6.4			—				—		*	—			1		—
State, municipalities and political subdivision	44.1			1				0.2			0.3			9		1
U.S. corporate securities	5,372.70			53.8				151.3			12.6			414		4
Foreign	2,636.50			57.2				105.7			12.3			239		6
Residential mortgage-backed	1,042.80			4				19.5			2.1			321		8
Commercial mortgage-backed	121.2			4				0.5			0.9			17		1
Other asset-backed	375.8			6.4				15.9			1.4			89		4
Total	$	9,723.60		$	126.4			$	294		$	29.6		1,098		24
* Less than $0.1.
The following tables summarize loan-to-value, credit enhancement and fixed floating rate details for residential mortgage-backed securities ("RMBS") and Other ABS in a gross unrealized loss position as of the dates indicated:
	Loan-to-Value Ratio
	Amortized Cost							Unrealized Capital Losses
March 31, 2015	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS > 100%	$	4.9		$	—			$	0.3		$	—
Non-agency RMBS > 90% - 100%	26.7			—				1.2			—
Non-agency RMBS 80% - 90%	61.9			—				2.9			—
Non-agency RMBS < 80%	311			4.5				16.8			1.1
Agency RMBS	515.3			3.4				7			1.7
Other ABS (Non-RMBS)	55			1.9				1.1			0.4
Total RMBS and Other ABS	$	974.8		$	9.8			$	29.3		$	3.2
	Credit Enhancement Percentage
	Amortized Cost							Unrealized Capital Losses
March 31, 2015	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS 10% +	$	320.3		$	4.2			$	16.5		$	0.9
Non-agency RMBS > 5% - 10%	22.3			—				0.8			—
Non-agency RMBS > 0% - 5%	19.7			—				0.6			—
Non-agency RMBS 0%	42.2			0.3				3.3			0.2
Agency RMBS	515.3			3.4				7			1.7
Other ABS (Non-RMBS)	55			1.9				1.1			0.4
Total RMBS and Other ABS	$	974.8		$	9.8			$	29.3		$	3.2
	Fixed Rate/Floating Rate
	Amortized Cost							Unrealized Capital Losses
March 31, 2015	< 20%			> 20%				< 20%			> 20%
Fixed Rate	$	517.1		$	2.2			$	7.2		$	0.7
Floating Rate	457.7			7.6				22.1			2.5
Total	$	974.8		$	9.8			$	29.3		$	3.2
(1) For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.
	Loan-to-Value Ratio
	Amortized Cost							Unrealized Capital Losses
December 31, 2014	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS > 100%	$	5		$	—			$	0.3		$	—
Non-agency RMBS > 90% - 100%	35.7			—				1.7			—
Non-agency RMBS 80% - 90%	109			0.3				5.2			0.1
Non-agency RMBS < 80%	291.5			4.6				15.8			1
Agency RMBS	835.9			3.6				11.1			1.9
Other ABS (Non-RMBS)	141.5			1.9				1.3			0.5
Total RMBS and Other ABS	$	1,418.60		$	10.4			$	35.4		$	3.5
	Credit Enhancement Percentage
	Amortized Cost							Unrealized Capital Losses
December 31, 2014	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS 10% +	$	325.7		$	4.5			$	17.9		$	0.9
Non-agency RMBS > 5% - 10%	18.4			—				0.8			—
Non-agency RMBS > 0% - 5%	51.1			—				0.9			—
Non-agency RMBS 0%	46			0.4				3.4			0.2
Agency RMBS	835.9			3.6				11.1			1.9
Other ABS (Non-RMBS)	141.5			1.9				1.3			0.5
Total RMBS and Other ABS	$	1,418.60		$	10.4			$	35.4		$	3.5
	Fixed Rate/Floating Rate
	Amortized Cost							Unrealized Capital Losses
December 31, 2014	< 20%			> 20%				< 20%			> 20%
Fixed Rate	$	817.2		$	2.3			$	12.3		$	0.7
Floating Rate	601.4			8.1				23.1			2.8
Total	$	1,418.60		$	10.4			$	35.4		$	3.5
(1) For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.
Investments with fair values less than amortized cost are included in the Company's other-than-temporary impairments analysis. Impairments were recognized as disclosed in the “Evaluating Securities for Other-Than-Temporary Impairments” section below. The Company evaluates non-agency RMBS and ABS for "other-than-temporary impairments" each quarter based on actual and projected cash flows, after considering the quality and updated loan-to-value ratios reflecting current home prices of underlying collateral, forecasted loss severity, the payment priority within the tranche structure of the security and amount of any credit enhancements. The Company's assessment of current levels of cash flows compared to estimated cash flows at the time the securities were acquired (typically pre-2008) indicates the amount and the pace of projected cash flows from the underlying collateral has generally been lower and slower, respectively. However, since cash flows are typically projected at a trust level, the impairment review incorporates the security's position within the trust structure as well as credit enhancement remaining in the trust to determine whether an impairment is warranted. Therefore, while lower and slower cash flows will impact the trust, the effect on the valuation of a particular security within the trust will also be dependent upon the trust structure. Where the assessment continues to project full recovery of principal and interest on schedule, the Company has not recorded an impairment. Based on this analysis, the Company determined that the remaining investments in an unrealized loss position were not other-than-temporarily impaired and therefore no further other-than-temporary impairment was necessary.
Troubled Debt Restructuring
The Company invests in high quality, well performing portfolios of commercial mortgage loans and private placements. Under certain circumstances, modifications are granted to these contracts. Each modification is evaluated as to whether a troubled debt restructuring has occurred. A modification is a troubled debt restructuring when the borrower is in financial difficulty and the creditor makes concessions. Generally, the types of concessions may include reducing the face amount or maturity amount of the debt as originally stated, reducing the contractual interest rate, extending the maturity date at an interest rate lower than current market interest rates and/or reducing accrued interest. The Company considers the amount, timing and extent of the concession granted in determining any impairment or changes in the specific valuation allowance recorded in connection with the troubled debt restructuring. A valuation allowance may have been recorded prior to the quarter when the loan is modified in a troubled debt restructuring. Accordingly, the carrying value (net of the specific valuation allowance) before and after modification through a troubled debt restructuring may not change significantly, or may increase if the expected recovery is higher than the pre-modification recovery assessment. For the three months ended March 31, 2015, the Company had no new troubled debt restructurings for private placement bonds or commercial mortgage loans. For the year ended December 31, 2014, the Company had no new troubled debt restructurings for private placement bonds and one new troubled debt restructuring for commercial mortgage loans with a pre-modification and post-modification carrying value of $1.9.
As of March 31, 2015, the Company held 14 commercial mortgage troubled debt restructured loans with a carrying value of $39.4.
Of these 14 loans, 12 were restructured in August 2013 with a pre-modification and post modification carrying value of $60.0. These loans represent what remains of an initial portfolio of 20 restructures with a pre-modification and post modification carrying value of $88.6. This portfolio of loans is comprised of cross-defaulted, cross-collateralized individual loans, owned by the same sponsor. Between the date of the troubled debt restructurings and March 31, 2015, this portfolio of loans has repaid $53.3 in principal.
As of March 31, 2015 and December 31, 2014, the Company did not have any commercial mortgage loans or private placements modified in a troubled debt restructuring with a subsequent payment default.
Mortgage Loans on Real Estate
The Company's mortgage loans on real estate are all commercial mortgage loans held for investment, which are reported at amortized cost, less impairment write-downs and allowance for losses. The Company diversifies its commercial mortgage loan portfolio by geographic region and property type to reduce concentration risk. The Company manages risk when originating commercial mortgage loans by generally lending only up to 75% of the estimated fair value of the underlying real estate. Subsequently, the Company continuously evaluates mortgage loans based on relevant current information including a review of loan-specific credit quality, property characteristics and market trends. Loan performance is monitored on a loan specific basis through the review of submitted appraisals, operating statements, rent revenues and annual inspection reports, among other items. This review ensures properties are performing at a consistent and acceptable level to secure the debt. The components to evaluate debt service coverage are received and reviewed at least annually to determine the level of risk.
The following table summarizes the Company's investment in mortgage loans as of the dates indicated:
	March 31, 2015			December 31, 2014
Commercial mortgage loans	$	10,197.20		$	9,796.90
Collective valuation allowance for losses	(2.7		)	(2.8		)
Total net commercial mortgage loans	$	10,194.50		$	9,794.10
There were no impairments taken on the mortgage loan portfolio for the three months ended March 31, 2015 and 2014.
The following table summarizes the activity in the allowance for losses for commercial mortgage loans for the periods indicated:
	March 31, 2015			December 31, 2014
Collective valuation allowance for losses, balance at January 1	$	2.8		$	3.8
Addition to (reduction of) allowance for losses	(0.1		)	(1.0		)
Collective valuation allowance for losses, end of period	$	2.7		$	2.8
The carrying values and unpaid principal balances of impaired mortgage loans were as follows as of the dates indicated:
	March 31, 2015			December 31, 2014
Impaired loans without allowances for losses	$	46.6		$	72.8
Less: Allowances for losses on impaired loans	—			—
Impaired loans, net	$	46.6		$	72.8
Unpaid principal balance of impaired loans	$	49.1		$	75.3
As of March 31, 2015 and December 31, 2014, the Company did not have any impaired loans with allowances for losses.
The following table presents information on restructured loans as of the dates indicated:
	March 31, 2015			December 31, 2014
Troubled debt restructured loans	$	39.4		$	65.5
The Company defines delinquent mortgage loans consistent with industry practice as 60 days past due. The Company's policy is to recognize interest income until a loan becomes 90 days delinquent or foreclosure proceedings are commenced, at which point interest accrual is discontinued. Interest accrual is not resumed until the loan is brought current.
There were no mortgage loans in the Company's portfolio in process of foreclosure or in arrears with respect to principal and interest as of March 31, 2015 and December 31, 2014.
The following table presents information on the average investment during the period in impaired loans and interest income recognized on impaired and troubled debt restructured loans for the periods indicated:
	Three Months Ended March 31,
	2015			2014
Impaired loans, average investment during the period (amortized cost) (1)	$	59.7		$	94.2
Interest income recognized on impaired loans, on an accrual basis (1)	0.9			1.3
Interest income recognized on impaired loans, on a cash basis (1)	1			1
Interest income recognized on troubled debt restructured loans, on an accrual basis	0.8			1.2
(1) Includes amounts for Troubled debt restructured loans.
Loan-to-value (“LTV”) and debt service coverage (“DSC”) ratios are measures commonly used to assess the risk and quality of mortgage loans. The LTV ratio, calculated at time of origination, is expressed as a percentage of the amount of the loan relative to the value of the underlying property. A LTV ratio in excess of 100% indicates the unpaid loan amount exceeds the underlying collateral. The DSC ratio, based upon the most recently received financial statements, is expressed as a percentage of the amount of a property’s net income to its debt service payments. A DSC ratio of less than 1.0 indicates that a property’s operations do not generate sufficient income to cover debt payments. These ratios are utilized as part of the review process described above.
The following table presents the LTV ratios as of the dates indicated:
	March 31, 2015(1)			December 31, 2014(1)
Loan-to-Value Ratio:
0% - 50%	$	1,339.00		$	1,460.60
> 50% - 60%	2,560.20			2,261.60
> 60% - 70%	5,764.00			5,514.80
> 70% - 80%	516			541.3
> 80% and above	18			18.6
Total Commercial mortgage loans	$	10,197.20		$	9,796.90
(1) Balances do not include collective valuation allowance for losses.
The following table presents the DSC ratios as of the dates indicated:
	March 31, 2015 (1)			December 31, 2014(1)
Debt Service Coverage Ratio:
Greater than 1.5x	$	7,245.40		$	7,096.20
> 1.25x - 1.5x	1,699.70			1,392.10
> 1.0x - 1.25x	871.1			906.7
Less than 1.0x	333.4			385.9
Commercial mortgage loans secured by land or construction loans	47.6			16
Total Commercial mortgage loans	$	10,197.20		$	9,796.90
(1) Balances do not include collective valuation allowance for losses.
Properties collateralizing mortgage loans are geographically dispersed throughout the United States, as well as diversified by property type, as reflected in the following tables as of the dates indicated:
	March 31, 2015 (1)						December 31, 2014(1)
	Gross Carrying Value			% of			Gross Carrying Value			% of
				Total						Total
Commercial Mortgage Loans by U.S. Region:
Pacific	$	2,566.50		25.2	%		$	2,395.90		24.6	%
South Atlantic	2,214.70			21.7	%		2,028.00			20.7	%
Middle Atlantic	1,447.00			14.2	%		1,402.00			14.3	%
West South Central	1,145.70			11.2	%		1,147.70			11.7	%
East North Central	1,049.50			10.3	%		1,030.80			10.5	%
Mountain	852.9			8.4	%		832.2			8.5	%
West North Central	501.8			4.9	%		514			5.2	%
East South Central	214.3			2.1	%		249.3			2.5	%
New England	204.8			2	%		197			2	%
Total Commercial mortgage loans	$	10,197.20		100	%		$	9,796.90		100	%
(1) Balances do not include collective valuation allowance for losses.
	March 31, 2015 (1)						December 31, 2014(1)
	Gross Carrying Value			% of			Gross Carrying Value			% of
				Total						Total
Commercial Mortgage Loans by Property Type:
Retail	$	3,539.20		34.6	%		$	3,408.40		34.8	%
Industrial	2,177.70			21.4	%		2,283.00			23.3	%
Apartments	1,762.30			17.3	%		1,680.70			17.2	%
Office	1,274.70			12.5	%		1,246.50			12.7	%
Hotel/Motel	387.3			3.8	%		382.7			3.9	%
Mixed Use	303.7			3	%		346.5			3.5	%
Other	752.3			7.4	%		449.1			4.6	%
Total Commercial mortgage loans	$	10,197.20		100	%		$	9,796.90		100	%
(1) Balances do not include collective valuation allowance for losses.
The following table sets forth the breakdown of mortgages by year of origination as of the dates indicated:
	March 31, 2015 (1)			December 31, 2014(1)
Year of Origination:
2015	$	698.8		$	—
2014	1,939.50			1,940.90
2013	2,113.30			2,137.50
2012	1,632.50			1,642.80
2011	1,499.10			1,533.50
2010	249.1			251
2009 and prior	2,064.90			2,291.20
Total Commercial mortgage loans	$	10,197.20		$	9,796.90
(1) Balances do not include collective valuation allowance for losses.
Evaluating Securities for Other-Than-Temporary Impairments
The Company performs a regular evaluation, on a security-by-security basis, of its available-for-sale securities holdings, including fixed maturity securities and equity securities in accordance with its impairment policy in order to evaluate whether such investments are other-than-temporarily impaired.
The following table identifies the Company's credit-related and intent-related impairments included in the Condensed Consolidated Statements of Operations, excluding impairments included in Other comprehensive income (loss) by type for the periods indicated:
	Three Months Ended March 31,
	2015						2014
	Impairment			No. of			Impairment			No. of
				Securities						Securities
U.S. corporate	$	1		3			$	0.4		1
Foreign(1)	0.8			2			—			—
Residential mortgage-backed	2.9			35			1.6			37
Commercial mortgage-backed	—			—			0.2			2
Other asset-backed	0.1			1			0.1			2
Equity	0.1			1			1			2
Total	$	4.9		42			$	3.3		44
(1) Primarily U.S. dollar denominated.
The above table includes $2.4 and $3.1 of write-downs related to credit impairments for the three months ended March 31, 2015 and 2014, respectively, in Other-than-temporary impairments, which are recognized in the Condensed Consolidated Statements of Operations. The remaining $2.5 and $0.2 in write-downs for the three months ended March 31, 2015 and 2014, respectively, are related to intent impairments.
The following table summarizes these intent impairments, which are also recognized in earnings, by type for the periods indicated:
	Three Months Ended March 31,
	2015						2014
	Impairment			No. of			Impairment			No. of
				Securities						Securities
U.S. corporate	$	1		3			$	—		—
Foreign(1)	0.8			2			—			—
Residential mortgage-backed	0.6			2			—			—
Commercial mortgage-backed	—			—			0.2			2
Other asset-backed	0.1			1			—			—
Equity	—			—			—			—
Total	$	2.5		8			$	0.2		2
(1) Primarily U.S. dollar denominated.
The Company may sell securities during the period in which fair value has declined below amortized cost for fixed maturities or cost for equity securities. In certain situations, new factors, including changes in the business environment, can change the Company’s previous intent to continue holding a security. Accordingly, these factors may lead the Company to record additional intent related capital losses.
The following table identifies the amount of credit impairments on fixed maturities for which a portion of the OTTI loss was recognized in Other comprehensive income (loss) and the corresponding changes in such amounts for the periods indicated:
	Three Months Ended March 31,
	2015			2014
Balance at January 1	$	86.8		$	102.8
Additional credit impairments:
On securities not previously impaired	—			1.1
On securities previously impaired	2.3			1
Reductions:
Increase in cash flows	0.6			—
Securities sold, matured, prepaid or paid down	4			3.8
Balance at March 31	$	84.5		$	101.1
Net Investment Income
The following table summarizes Net investment income for the periods indicated:
		Three Months Ended March 31,
		2015			2014
Fixed maturities		$	996.4		$	984.8
Equity securities, available-for-sale		2.7			3.8
Mortgage loans on real estate		132.8			115.3
Policy loans		28.2			28
Short-term investments and cash equivalents		0.9			0.8
Other		15.3			14.1
Gross investment income		1,176.30			1,146.80
Less: Investment expenses		1.7			1.2
Net investment income		$	1,174.60		$	1,145.60
As of March 31, 2015 and December 31, 2014, the Company had $9.2 and $0.1, respectively, of investments in fixed maturities that did not produce net investment income. Fixed maturities are moved to a non-accrual status when the investment defaults.
Interest income on fixed maturities is recorded when earned using an effective yield method, giving effect to amortization of premiums and accretion of discounts. Such interest income is recorded in Net investment income in the Condensed Consolidated Statements of Operations.
Net Realized Capital Gains (Losses)
Net realized capital gains (losses) comprise the difference between the amortized cost of investments and proceeds from sale and redemption, as well as losses incurred due to the credit-related and intent-related other-than-temporary impairment of investments. Realized investment gains and losses are also primarily generated from changes in fair value of embedded derivatives within product guarantees and fixed maturities, changes in fair value of fixed maturities recorded at FVO and changes in fair value including accruals on derivative instruments, except for effective cash flow hedges. The cost of the investments on disposal is generally determined based on first-in-first-out (“FIFO”) methodology.
Net realized capital gains (losses) were as follows for the periods indicated:
	Three Months Ended March 31,
	2015			2014
Fixed maturities, available-for-sale, including securities pledged	$	(0.9	)	$	13.7
Fixed maturities, at fair value option	(18.2		)	(18.9		)
Equity securities, available-for-sale	(0.1		)	17.1
Derivatives	78.2			53.8
Embedded derivative - fixed maturities	(1.8		)	(3.3		)
Embedded derivative - product guarantees	(322.1		)	(255.1		)
Other investments	0.4			2.1
Net realized capital gains (losses)	$	(264.5	)	$	(190.6	)
After-tax net realized capital gains (losses)	$	(172.0	)	$	(118.3	)
Proceeds from the sale of fixed maturities and equity securities, available-for-sale and the related gross realized gains and losses, before tax, were as follows for the periods indicated:
		Three Months Ended March 31,
		2015			2014
Proceeds on sales		$	1,115.70		$	1,494.90
Gross gains		10.4			39.7
Gross losses		12.4			19.8

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments
	The Company enters into the following types of derivatives:
	Interest rate caps: The Company uses interest rate cap contracts to hedge the interest rate exposure arising from duration mismatches between assets and liabilities. Interest rate caps are also used to hedge interest rate exposure if rates rise above a specified level. Such increases in rates will require the Company to incur additional expenses. The future payout from the interest rate caps fund this increased exposure. The Company pays an upfront premium to purchase these caps. The Company utilizes these contracts in non-qualifying hedging relationships.
	Interest rate swaps: Interest rate swaps are used by the Company primarily to reduce market risks from changes in interest rates and to alter interest rate exposure arising from mismatches between assets and/or liabilities. Interest rate swaps are also used to hedge the interest rate risk associated with the value of assets it owns or in an anticipation of acquiring them. Using interest rate swaps, the Company agrees with another party to exchange, at specified intervals, the difference between fixed rate and floating rate interest payments, calculated by reference to an agreed upon notional principal amount. These transactions are entered into pursuant to master agreements that provide for a single net payment to be made to/from the counterparty at each due date. The Company utilizes these contracts in qualifying hedging relationships as well as non-qualifying hedging relationships.
	Foreign exchange swaps: The Company uses foreign exchange or currency swaps to reduce the risk of change in the value, yield or cash flows associated with certain foreign denominated invested assets. Foreign exchange swaps represent contracts that require the exchange of foreign currency cash flows against U.S. dollar cash flows at regular periods, typically quarterly or semi-annually. The Company utilizes these contracts in qualifying hedging relationships as well as non-qualifying hedging relationships.
	Credit default swaps: Credit default swaps are used to reduce credit loss exposure with respect to certain assets that the Company owns or to assume credit exposure on certain assets that the Company does not own. Payments are made to, or received from, the counterparty at specified intervals. In the event of a default on the underlying credit exposure, the Company will either receive a payment (purchased credit protection) or will be required to make a payment (sold credit protection) equal to the par minus recovery value of the swap contract. The Company utilizes these contracts in non-qualifying hedging relationships.
	Total return swaps: The Company uses total return swaps as a hedge against a decrease in variable annuity account values, which are invested in certain indices. Using total return swaps, the Company agrees with another party to exchange, at specified intervals, the difference between the economic risk and reward of assets or a market index and the LIBOR rate, calculated by reference to an agreed upon notional principal amount. No cash is exchanged at the onset of the contracts. Cash is paid and received over the life of the contract based upon the terms of the swaps. The Company utilizes these contracts in non-qualifying hedging relationships.
	Currency forwards: The Company uses currency forward contracts to hedge policyholder liabilities associated with the variable annuity contracts which are linked to foreign indices. The currency fluctuations may result in a decrease in account values, which would increase the possibility of the Company incurring an expense for guaranteed benefits in excess of account values. The Company utilizes these contracts in non-qualifying hedging relationships.
	Forwards: The Company uses forward contracts to hedge certain invested assets against movement in interest rates, particularly mortgage rates. The Company uses To Be Announced mortgage-backed securities as an economic hedge against rate movements. The Company utilizes forward contracts in non-qualifying hedging relationships.
	Futures: Futures contracts are used to hedge against a decrease in certain equity indices. Such decreases may result in a decrease in variable annuity account values which would increase the possibility of the Company incurring an expense for guaranteed benefits in excess of account values. The Company also uses futures contracts as a hedge against an increase in certain equity indices. Such increases may result in increased payments to the holders of the fixed index annuity ("FIA") contracts. The Company enters into exchange traded futures with regulated futures commissions that are members of the exchange. The Company also posts initial and variation margins, with the exchange, on a daily basis. The Company utilizes exchange-traded futures in non-qualifying hedging relationships.
	Swaptions: A swaption is an option to enter into a swap with a forward starting effective date. The Company uses swaptions to hedge the interest rate exposure associated with the minimum crediting rate and book value guarantees embedded in the retirement products that the Company offers. Increases in interest rates will generate losses on assets that are backing such liabilities. In certain instances, the Company locks in the economic impact of existing purchased swaptions by entering into offsetting written swaptions. Swaptions are also used to hedge against an increase in the interest rate benchmarked crediting strategies within FIA contracts. Such increases may result in increased payments to contract holders of FIA contracts and the interest rate swaptions offset this increased exposure. The Company pays a premium when it purchases the swaption. The Company utilizes these contracts in non-qualifying hedging relationships.
	Options: The Company uses put options to manage the equity, interest rate and equity volatility risk of the economic liabilities associated with certain variable annuity minimum guaranteed benefits. The Company also uses call options to hedge against an increase in various equity indices. Such increases may result in increased payments to the holders of the FIA contracts. The Company pays an upfront premium to purchase these options. The Company utilizes these options in non-qualifying hedging relationships.
	Variance swaps: The Company uses variance swaps to manage equity volatility risk on the economic liabilities associated with certain minimum guaranteed living benefits and/or to mitigate certain rebalancing costs resulting from increased volatility. An increase in the equity volatility results in higher valuations of such liabilities. In an equity variance swap, the Company agrees with another party to exchange amounts in the future, based on the changes in equity volatility over a defined period. The Company utilizes equity variance swaps in non-qualifying hedging relationships.
	Managed custody guarantees ("MCG"): The Company issues certain credited rate guarantees on variable fixed income portfolios that represent stand-alone derivatives. The market value is partially determined by, among other things, levels of or changes in interest rates, prepayment rates and credit ratings/spreads.
	Embedded derivatives: The Company also invests in certain fixed maturity instruments and has issued certain annuity products that contain embedded derivatives whose market value is at least partially determined by, among other things, levels of or changes in domestic and/or foreign interest rates (short-term or long-term), exchange rates, prepayment rates, equity rates or credit ratings/spreads. In addition, the Company has entered into coinsurance with funds withheld arrangements, which contain embedded derivatives.
	The Company's use of derivatives is limited mainly to economic hedging to reduce the Company's exposure to cash flow variability of assets and liabilities, interest rate risk, credit risk, exchange rate risk and market risk. It is the Company's policy not to offset amounts recognized for derivative instruments and amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral arising from derivative instruments executed with the same counterparty under a master netting arrangement, which provides the Company with the legal right of offset.
	The notional amounts and fair values of derivatives were as follows as of the dates indicated:
		March 31, 2015									December 31, 2014
		Notional			Asset			Liability			Notional		Asset		Liability
		Amount			Fair			Fair			Amount		Fair		Fair
					Value			Value					Value		Value
	Derivatives: Qualifying for hedge accounting(1)
	Cash flow hedges:
	Interest rate contracts	$	711.5		$	122.8		$	—		$	736	$	114.6	$	—
	Foreign exchange contracts	174.7			37.4			—			174.7		25.3		—
	Fair value hedges:
	Interest rate contracts	562.4			0.3			14.3			566.4		2.4		13.4
	Derivatives: Non-qualifying for hedge accounting(1)
	Interest rate contracts	64,592.60			1,508.50			737.5			66,474.00		1,108.00		563.2
	Foreign exchange contracts	1,280.90			58.7			45.4			1,373.10		45.3		26.8
	Equity contracts	21,482.20			359.5			136.6			21,165.70		483.1		209.9
	Credit contracts	4,221.00			39.8			40.5			4,221.00		40.9		36
	Embedded derivatives and Managed custody guarantees:
	Within fixed maturity investments	N/A			114			—			N/A		115.8		—
	Within annuity products	N/A			—			4,022.90			N/A		—		3,659.60
	Within reinsurance agreements	N/A			—			163.5			N/A		—		139.6
	Managed custody guarantees	N/A			—			0.8			N/A		—		—
	Total				$	2,241.00		$	5,161.50				$	1,935.40	$	4,648.50
	(1) Open derivative contracts are reported as Derivatives assets or liabilities on the Condensed Consolidated Balance Sheets at fair value.
	N/A - Not Applicable
	The maximum length of time over which the Company is hedging its exposure to the variability in future cash flows for forecasted anticipatory hedge transactions is through the fourth quarter of 2016.
	Based on the notional amounts, a substantial portion of the Company’s derivative positions was not designated or did not qualify for hedge accounting as part of a hedging relationship as of March 31, 2015 and December 31, 2014. The Company utilizes derivative contracts mainly to hedge exposure to variability in cash flows, interest rate risk, credit risk, foreign exchange risk and equity market risk. The majority of derivatives used by the Company are designated as product hedges, which hedge the exposure arising from insurance liabilities or guarantees embedded in the contracts the Company offers through various product lines. These derivatives do not qualify for hedge accounting as they do not meet the criteria of being “highly effective” as outlined in ASC Topic 815, but do provide an economic hedge, which is in line with the Company’s risk management objectives. The Company also uses derivatives contracts to hedge its exposure to various risks associated with the investment portfolio. The Company does not seek hedge accounting treatment for certain of these derivatives as they generally do not qualify for hedge accounting due to the criteria required under the portfolio hedging rules outlined in ASC Topic 815. The Company also uses credit default swaps coupled with other investments in order to produce the investment characteristics of otherwise permissible investments that do not qualify as effective accounting hedges under ASC Topic 815.
	Although the Company has not elected to net its derivative exposures, the notional amounts and fair values of Over-The-Counter (“OTC”) and cleared derivatives excluding exchange traded contracts and forward contracts (To Be Announced mortgage-backed securities) are presented in the tables below as of the dates indicated:
		March 31, 2015
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	4,221.00		$	39.8		$	40.5
	Equity contracts	13,633.50			311.5			130.2
	Foreign exchange contracts	1,455.60			96.1			45.4
	Interest rate contracts	65,866.50			1,631.60			751.8
					2,079.00			967.9
	Counterparty netting(1)				(812.6		)	(812.6		)
	Cash collateral netting(1)				(1,033.5		)	(59.8		)
	Securities collateral netting(1)				(70.8		)	(53.0		)
	Net receivables/payables				$	162.1		$	42.5
	(1) Represents the netting of receivable balances with payable balances, net of collateral, for the same counterparty under eligible netting agreements.
		December 31, 2014
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	4,221.00		$	40.9		$	36
	Equity contracts	13,576.10			378.4			201.7
	Foreign exchange contracts	1,547.80			70.6			26.8
	Interest rate contracts	67,776.40			1,225.00			576.6
					1,714.90			841.1
	Counterparty netting(1)				(721.3		)	(721.3		)
	Cash collateral netting(1)				(661.1		)	(35.9		)
Securities collateral netting(1)				(158.9		)	(46.9		)
Net receivables/payables				$	173.6		$	37
(1) Represents the netting of receivable balances with payable balances, net of collateral, for the same counterparty under eligible netting agreements.
Collateral
Under the terms of the OTC Derivative International Swaps and Derivatives Association, Inc. (“ISDA”) agreements, the Company may receive from, or deliver to, counterparties collateral to assure that terms of the ISDA agreements will be met with regard to the Credit Support Annex (“CSA”). The terms of the CSA call for the Company to pay interest on any cash received equal to the Federal Funds rate. To the extent cash collateral is received and delivered, it is included in Payables under securities loan agreements, including collateral held and Short-term investments under securities loan agreements, including collateral delivered, respectively, on the Condensed Consolidated Balance Sheets and is reinvested in short-term investments. Collateral held is used in accordance with the CSA to satisfy any obligations. Investment grade bonds owned by the Company are the source of noncash collateral posted, which is reported in Securities pledged on the Condensed Consolidated Balance Sheets. As of March 31, 2015, the Company held $889.8 and $105.3 of net cash collateral related to OTC derivative contracts and cleared derivative contracts, respectively. As of December 31, 2014, the Company held $515.8 and $119.1 of net cash collateral related to OTC derivative contracts and cleared derivative contracts, respectively. In addition, as of March 31, 2015, the Company delivered $660.9 of securities and held $71.1 of securities as collateral. As of December 31, 2014, the Company delivered $638.7 of securities and held $159.3 of securities as collateral.
Net realized gains (losses) on derivatives were as follows for the periods indicated:
	Three Months Ended March 31,
	2015			2014
Derivatives: Qualifying for hedge accounting(1)
Cash flow hedges:
Interest rate contracts	$	0.2		$	0.2
Foreign exchange contracts	0.5			0.4
Fair value hedges:
Interest rate contracts	(4.7		)	(5.2		)
Derivatives: Non-qualifying for hedge accounting(2)
Interest rate contracts	237.1			204.2
Foreign exchange contracts	66			(1.7		)
Equity contracts	(217.8		)	(144.9		)
Credit contracts	(3.1		)	0.8
Embedded derivatives and Managed custody guarantees:
Within fixed maturity investments(2)	(1.8		)	(3.3		)
Within annuity products(2)	(321.3		)	(255.1		)
Within reinsurance agreements(3)	(23.9		)	(16.7		)
Managed custody guarantees(2)	(0.8		)	—
Total	$	(269.6	)	$	(221.3	)
(1) Changes in value for effective fair value hedges are recorded in Other net realized capital gains (losses). Changes in fair value upon disposal for effective cash flow hedges are amortized through Net investment income and the ineffective portion is recorded in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations. For the three months ended March 31, 2015 and 2014, ineffective amounts were immaterial.
(2) Changes in value are included in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
(3) Changes in value are included in Policyholder benefits in the Condensed Consolidated Statements of Operations.
Credit Default Swaps
The Company has entered into various credit default swaps. When credit default swaps are sold, the Company assumes credit exposure to certain assets that it does not own. Credit default swaps may also be purchased to reduce credit exposure in the Company’s portfolio. Credit default swaps involve a transfer of credit risk from one party to another in exchange for periodic payments. As of March 31, 2015, the fair values of credit default swaps of $39.8 and $40.5 were included in Derivatives assets and Derivatives liabilities, respectively, on the Condensed Consolidated Balance Sheets. As of December 31, 2014, the fair values of credit default swaps of $40.9 and $36.0 were included in Derivatives assets and Derivatives liabilities, respectively, on the Condensed Consolidated Balance Sheets. As of March 31, 2015 and December 31, 2014, the maximum potential future net exposure to the Company was $1.7 billion, net of purchased protection of $500.0 on credit default swaps. These instruments are typically written for a maturity period of five years and contain no recourse provisions. If the Company's current debt and claims paying ratings were downgraded in the future, the terms in the Company's derivative agreements may be triggered, which could negatively impact overall liquidity.

Fair_Value_Measurements_exclud

Fair Value Measurements (excluding Consolidated Investment Entities)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements (excluding Consolidated Investment Entities)
	Fair Value Measurement
	The Company categorizes its financial instruments into a three-level hierarchy based on the priority of the inputs to the valuation technique, pursuant to ASU 2011-04, “Fair Value Measurements (ASC Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP” (“ASU 2011-04”). The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3), as described in the Fair Value Measurements (excluding Consolidated Investment Entities) Note in the Consolidated Financial Statements in Part II, Item 8. of the Company's 2014 Annual Report on Form 10-K. If the inputs used to measure fair value fall within different levels of the hierarchy, the category level is based on the lowest priority level input that is significant to the fair value measurement of the instrument.
	When available, the estimated fair value of financial instruments is based on quoted prices in active markets that are readily and regularly obtainable. When quoted prices in active markets are not available, the determination of estimated fair value is based on market standard valuation methodologies, including discounted cash flow methodologies, matrix pricing or other similar techniques.
	The following table presents the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of March 31, 2015:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	3,112.30			$	668.9			$	—		$	3,781.20
	U.S. Government agencies and authorities	—				442.1				—			442.1
	State, municipalities and political subdivisions	—				798.1				—			798.1
	U.S. Corporate securities	—				41,249.70				1,109.60			42,359.30
	Foreign(1)	—				16,210.50				502.5			16,713.00
	Residential mortgage-backed securities	—				6,451.20				109.2			6,560.40
	Commercial mortgage-backed securities	—				4,185.90				—			4,185.90
	Other asset-backed securities	—				1,453.10				9.3			1,462.40
	Total fixed maturities, including securities pledged	3,112.30				71,459.50				1,730.60			76,302.40
	Equity securities, available-for-sale	225.4				—				58.2			283.6
	Derivatives:
	Interest rate contracts	—				1,631.60				—			1,631.60
	Foreign exchange contracts	—				96.1				—			96.1
	Equity contracts	48				228				83.5			359.5
	Credit contracts	—				28.6				11.2			39.8
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	4,337.00				141.6				6			4,484.60
	Assets held in separate accounts	101,772.70				5,266.10				0.6			107,039.40
	Total assets	$	109,495.40			$	78,851.50			$	1,890.10		$	190,237.00
	Percentage of Level to total	57.6		%		41.4		%		1		%	100		%
	Liabilities:
	Derivatives:
	Annuity product guarantees:
	FIA	$	—			$	—			$	2,015.60		$	2,015.60
	GMAB/GMWB/GMWBL(2)	—				—				1,860.00			1,860.00
	Stabilizer and MCGs	—				—				148.1			148.1
	Other derivatives:
	Interest rate contracts	—				751.8				—			751.8
	Foreign exchange contracts	—				45.4				—			45.4
	Equity contracts	6.3				130.3				—			136.6
	Credit contracts	—				18.4				22.1			40.5
	Embedded derivative on reinsurance	—				163.5				—			163.5
	Total liabilities	$	6.3			$	1,109.40			$	4,045.80		$	5,161.50
	(1) Primarily U.S. dollar denominated.
	(2) Guaranteed minimum accumulation benefits ("GMAB"), Guaranteed minimum withdrawal benefits (“GMWB”) and Guaranteed minimum withdrawal benefits with life payouts (“GMWBL”).
	The following table presents the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of December 31, 2014:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	3,262.00			$	642			$	—		$	3,904.00
	U.S. Government agencies and authorities	—				435.9				—			435.9
	State, municipalities and political subdivisions	—				694.4				—			694.4
	U.S. corporate securities	—				39,658.20				1,082.60			40,740.80
	Foreign(1)	—				15,995.50				448.7			16,444.20
	Residential mortgage-backed securities	—				6,562.60				94.2			6,656.80
	Commercial mortgage-backed securities	—				4,166.20				22			4,188.20
	Other asset-backed securities	—				1,585.00				10.1			1,595.10
	Total fixed maturities, including securities pledged	3,262.00				69,739.80				1,657.60			74,659.40
	Equity securities, available-for-sale	215.5				—				56.3			271.8
	Derivatives:
	Interest rate contracts	—				1,225.00				—			1,225.00
	Foreign exchange contracts	—				70.6				—			70.6
	Equity contracts	104.7				296.6				81.8			483.1
	Credit contracts	—				30.9				10			40.9
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	4,924.80				138.5				6			5,069.30
	Assets held in separate accounts	100,692.40				5,313.10				2.3			106,007.80
	Total assets	$	109,199.40			$	76,814.50			$	1,814.00		$	187,827.90
Percentage of Level to total	58.1		%		40.9		%		1		%	100		%
Liabilities:
Derivatives:
Annuity product guarantees:
FIA	$	—			$	—			$	1,970.00		$	1,970.00
GMAB/GMWB/GMWBL	—				—				1,586.70			1,586.70
Stabilizer and MCGs	—				—				102.9			102.9
Other derivatives:
Interest rate contracts	—				576.6				—			576.6
Foreign exchange contracts	—				26.8				—			26.8
Equity contracts	8.2				201.7				—			209.9
Credit contracts	—				16.3				19.7			36
Embedded derivative on reinsurance	—				139.6				—			139.6
Total liabilities	$	8.2			$	961			$	3,679.30		$	4,648.50
(1)Primarily U.S. dollar denominated.
Valuation of Financial Assets and Liabilities at Fair Value
Certain assets and liabilities are measured at estimated fair value on the Company’s Condensed Consolidated Balance Sheets. The Company defines fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The exit price and the transaction (or entry) price will be the same at initial recognition in many circumstances. However, in certain cases, the transaction price may not represent fair value. The fair value of a liability is based on the amount that would be paid to transfer a liability to a third-party with an equal credit standing. Fair value is required to be a market-based measurement that is determined based on a hypothetical transaction at the measurement date, from a market participant’s perspective. The Company considers three broad valuation techniques when a quoted price is unavailable: (i) the market approach, (ii) the income approach and (iii) the cost approach. The Company determines the most appropriate valuation technique to use, given the instrument being measured and the availability of sufficient inputs. The Company prioritizes the inputs to fair valuation techniques and allows for the use of unobservable inputs to the extent that observable inputs are not available.
The Company utilizes a number of valuation methodologies to determine the fair values of its financial assets and liabilities in conformity with the concepts of “exit price” and the fair value hierarchy as prescribed in ASC Topic 820. Valuations are obtained from third-party commercial pricing services, brokers and industry-standard, vendor-provided software that models the value based on market observable inputs. The valuations obtained from third-party commercial pricing services are non-binding. The Company reviews the assumptions and inputs used by third-party commercial pricing services for each reporting period in order to determine an appropriate fair value hierarchy level. The documentation and analysis obtained from third-party commercial pricing services are reviewed by the Company, including in-depth validation procedures confirming the observability of inputs. The valuations are reviewed and validated monthly through the internal valuation committee price variance review, comparisons to internal pricing models, back testing to recent trades or monitoring of trading volumes.
Fixed maturities: The fair values for actively traded marketable bonds are determined based upon the quoted market prices and are classified as Level 1 assets. Assets in this category primarily include certain U.S. Treasury securities.
For fixed maturities classified as Level 2 assets, fair values are determined using the market approach, based on prices obtained from third-party commercial pricing services and the Company’s matrix pricing models, which in each case incorporate a variety of market observable information as valuation inputs. The market observable inputs used for these fair value measurements, by fixed maturity asset class, are as follows:
US Treasuries, Government Agencies and Authorities, States and Municipalities: Fair value is determined principally using third-party commercial pricing services, with the primary inputs being US Treasury yield curves, trades of comparable securities, credit spreads off benchmark yields, and issuer ratings.
US/Foreign Public Corporates and Foreign Governments: Fair value is determined principally using third-party commercial pricing services, with the primary inputs being benchmark yields, trades of comparable securities, issuer ratings, bids and credit spreads off benchmark yields.
US/Foreign Private Corporates: Fair values are determined principally using a matrix-based pricing model. The model incorporates the current level of risk-free interest rates, current corporate credit spreads, credit quality of the issuer and cash flow characteristics of the security. The model also considers a liquidity spread, the value of any collateral, the capital structure of the issuer, the presence of guarantees and the Company’s evaluation of the issuer’s ability to compete in its relevant market.
RMBS, CMBS and ABS: Fair value is determined principally using third-party commercial pricing services, with the primary inputs being credit spreads off benchmark yields, prepayment speed assumptions, current and forecasted loss severity, debt service coverage ratios, collateral type, payment priority within tranche and the vintage of the loans underlying the security.
Transfers in and out of Level 1 and 2
There were no securities transferred between Level 1 and Level 2 for the three months ended March 31, 2015 and 2014. The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
Level 3 Financial Instruments
The fair values of certain assets and liabilities are determined using prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement (i.e., Level 3 as defined by ASC Topic 820), including but not limited to liquidity spreads for investments within markets deemed not currently active. These valuations, whether derived internally or obtained from a third-party, use critical assumptions that are not widely available to estimate market participant expectations in valuing the asset or liability. In addition, the Company has determined, for certain financial instruments, an active market is such a significant input to determine fair value that the presence of an inactive market may lead to classification in Level 3. In light of the methodologies employed to obtain the fair values of financial assets and liabilities classified as Level 3, additional information is presented below.
The following table summarizes the change in fair value of the Company’s Level 3 assets and liabilities and transfers in and out of Level 3 for the three months ended March 31, 2015:
	Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value as of March 31			Change In
	as of				Realized/Unrealized																			into		out of						Unrealized
	1-Jan				Gains (Losses)																			Level 3(3)		Level 3(3)						Gains
					Included in:																											(Losses)
																																Included in
					Net				OCI																							Earnings(4)
					Income
Fixed maturities, including securities pledged:
U.S. Government agencies and authorities	$	—			$	—			$	—		$	—		$	—		$	—		$	—		$	—	$	—		$	—		$	—
U.S. corporate securities	1,082.60				0.1				2.1			85.1			—			—			(109.9		)	49.6		—			1,109.60			0.1
Foreign(1)	448.7				0.6				(1.0		)	12.2			—			—			(11.7		)	53.7		—			502.5			—
Residential mortgage-backed securities	94.2				(2.5		)		(0.2		)	5.3			—			—			(0.1		)	12.5		—			109.2			(2.5		)
Commercial mortgage-backed securities	22				—				—			—			—			—			—			—		(22.0		)	—			—
Other asset-backed securities	10.1				—				—			—			—			—			(0.8		)	—		—			9.3			—
Total fixed maturities including securities pledged	1,657.60				(1.8		)		0.9			102.6			—			—			(122.5		)	115.8		(22.0		)	1,730.60			(2.4		)
Equity securities, available-for-sale	56.3				(0.1		)		2			—			—			—			—			—		—			58.2			(0.1		)
Derivatives:
Product guarantees:
FIA(2)	(1,970.0		)		(45.7		)		—			—			(40.5		)	—			40.6			—		—			(2,015.6		)	—
GMAB/GMWB/GMWBL(2)	(1,586.7		)		(232.3		)		—			—			(41.1		)	—			0.1			—		—			(1,860.0		)	—
Stabilizer and MCGs(2)	(102.9		)		(44.1		)		—			—			(1.1		)	—			—			—		—			(148.1		)	—
Other derivatives, net	72.1				0.4				—			8.3			—			—			(8.2		)	—		—			72.6			0.6
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	6				—				—			—			—			—			—			—		—			6			—
Assets held in separate accounts(5)	2.3				—				—			—			—			—			—			—		(1.7		)	0.6			—
(1) Primarily U.S. dollar denominated.
(2) All gains and losses on Level 3 liabilities are classified as realized gains (losses) for the purpose of this disclosure because it is impracticable to track realized and unrealized gains (losses) separately on a contract-by contract basis. These amounts are included in Other net realized gains (losses) in the Condensed Consolidated Statements of Operations.
(3) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
(4) For financial instruments still held as of March 31, amounts are included in Net investment income and Total net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
(5) The investment income and realized gains (losses) and change in unrealized gains (losses) included in net income for separate account assets are offset by an equal amount for separate account liabilities, which results in a net zero impact on Net income (loss) for the Company.
The following table summarizes the change in fair value of the Company’s Level 3 assets and liabilities and transfers in and out of Level 3 for the three months ended March 31, 2014:
	Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value as of March 31			Change In
	as of				Realized/Unrealized																			into		out of						Unrealized
	1-Jan				Gains (Losses)																			Level 3(3)		Level 3(3)						Gains
					Included in:																											(Losses)
																																Included in
					Net				OCI																							Earnings(4)
					Income
Fixed maturities, including securities pledged:
U.S. Government agencies and authorities	$	14.4			$	—			$	—		$	—		$	—		$	—		$	(0.2	)	$	—	$	(7.0	)	$	7.2		$	—
U.S. corporate securities	456.5				—				4.5			108			—			—			(10.1		)	12.8		(3.0		)	568.7			—
Foreign(1)	154.3				—				1.6			—			—			—			(0.2		)	—		(25.0		)	130.7			—
Residential mortgage-backed securities	98.6				(2.8		)		0.8			—			—			—			(0.6		)	8.8		(0.4		)	104.4			(2.8		)
Commercial mortgage-backed securities	—				—				—			24.9			—			—			—			—		—			24.9			—
Other asset-backed securities	59.2				3.1				(2.5		)	—			—			—			(17.6		)	—		—			42.2			1
Total fixed maturities including securities pledged	783				0.3				4.4			132.9			—			—			(28.7		)	21.6		(35.4		)	878.1			(1.8		)
Equity securities, available-for-sale	55.3				(0.9		)		2.8			—			—			(0.1		)	—			—		—			57.1			(0.9		)
Derivatives:
Product guarantees:
FIA(2)	(1,736.7		)		(42.4		)		—			—			(50.3		)	—			21.4			—		—			(1,808.0		)	—
GMAB/GMWB/GMWBL(2)	(908.9		)		(195.9		)		—			—			(38.6		)	—			0.1			—		—			(1,143.3		)	—
Stabilizer and MCGs(2)	—				(16.8		)		—			—			(1.2		)	—			—			—		—			(18.0		)	—
Other derivatives, net	80.3				1				—			7.4			—			—			(21.6		)	—		—			67.1			(12.7		)
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	—				—				—			—			—			—			—			—		—			—			—
Assets held in separate accounts(5)	13.1				—				—			5.8			—			(1.0		)	—			—		—			17.9			—
(1) Primarily U.S. dollar denominated.
(2) All gains and losses on Level 3 liabilities are classified as realized gains (losses) for the purpose of this disclosure because it is impracticable to track realized and unrealized gains (losses) separately on a contract-by contract basis. These amounts are included in Other net realized gains (losses) in the Condensed Consolidated Statements of Operations.
(3) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
(4) For financial instruments still held as of March 31, amounts are included in Net investment income and Total net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
(5) The investment income and realized gains (losses) and change in unrealized gains (losses) included in net income for separate account assets are offset by an equal amount for separate account liabilities, which results in a net zero impact on Net income (loss) for the Company.
For the three months ended March 31, 2015 and 2014, the transfers in and out of Level 3 for fixed maturities and equity securities, as well as separate accounts, were due to the variation in inputs relied upon for valuation each quarter. Securities that are primarily valued using independent broker quotes when prices are not available from one of the commercial pricing services are reflected as transfers into Level 3. When securities are valued using more widely available information, the securities are transferred out of Level 3 and into Level 1 or 2, as appropriate.
Significant Unobservable Inputs
Quantitative information about the significant unobservable inputs used in the Company's Level 3 fair value measurements of its annuity product guarantees is presented in the following sections and table.
The Company's Level 3 fair value measurements of its fixed maturities, equity securities available-for-sale and equity and credit derivative contracts are primarily based on broker quotes for which the quantitative detail of the unobservable inputs is neither provided nor reasonably corroborated, thus negating the ability to perform a sensitivity analysis. The Company performs a review of broker quotes by performing a monthly price variance comparison and back tests broker quotes to recent trade prices.
Significant unobservable inputs used in the fair value measurements of GMABs, GMWBs and GMWBLs include long-term equity and interest rate implied volatility, correlations between the rate of return on policyholder funds and between interest rates and equity returns, nonperformance risk, mortality and policyholder behavior assumptions, such as benefit utilization, lapses and partial withdrawals. Such inputs are monitored quarterly.
Significant unobservable inputs used in the fair value measurements of FIAs include nonperformance risk and policyholder behavior assumptions, such as lapses and partial withdrawals. Such inputs are monitored quarterly.
The significant unobservable inputs used in the fair value measurement of the Stabilizer embedded derivatives and MCG derivative are interest rate implied volatility, nonperformance risk, lapses and policyholder deposits. Such inputs are monitored quarterly.
Following is a description of selected inputs:
Equity / Interest Rate Volatility: A term-structure model is used to approximate implied volatility for the equity indices and swap rates for GMAB, GMWB and GMWBL fair value measurements and swap rates for the Stabilizer and MCG fair value measurements. Where no implied volatility is readily available in the market, an alternative approach is applied based on historical volatility.
Correlations: Integrated interest rate and equity scenarios are used in GMAB, GMWB and GMWBL fair value measurements to better reflect market interest rates and interest rate volatility correlations between equity and fixed income fund groups and between equity fund groups and interest rates. The correlations are based on historical fund returns and swap rates from external sources.
Nonperformance Risk: For the estimate of the fair value of embedded derivatives associated with the Company's product guarantees, the Company uses a blend of observable, similarly rated peer company credit default swap spreads, adjusted to reflect the credit quality of the individual insurance company subsidiary that issued the guarantee and the priority of policyholder claims.
Actuarial Assumptions: Management regularly reviews actuarial assumptions, which are based on the Company's experience and periodically reviewed against industry standards. Industry standards and Company experience may be limited on certain products.
The following table presents the unobservable inputs for Level 3 fair value measurements as of March 31, 2015:
		Range(1)
Unobservable Input		GMWB / GMWBL			GMAB			FIA			Stabilizer / MCG
Long-term equity implied volatility		15% to 25%			15% to 25%			—			—
Interest rate implied volatility		0.2% to 18%			0.2% to 18%			—			0.2% to 7.8%
Correlations between:
Equity Funds		49% to 98%			49% to 98%			—			—
Equity and Fixed Income Funds		-38% to 62%			-38% to 62%			—			—
Interest Rates and Equity Funds		-32% to -3%			-32% to -3%			—			—
Nonperformance risk		0.14% to 1.10%			0.14% to 1.10%			0.14% to 1.10%			0.14% to 1.10%
Actuarial Assumptions:
Benefit Utilization		85% to 100%		(2)	—			—			—
Partial Withdrawals		0% to 10%			0% to 10%			0% to 5 %			—
Lapses		0.08% to 24%		(3)(4)	0.08% to 31%		(3)(4)	0% to 60%		(3)	0% to 50%	(5)
Policyholder Deposits(6)		—			—			—			0% to 65%	(5)
Mortality		—		(7)	—		(7)	—		(8)	—
(1)	Represents the range of reasonable assumptions that management has used in its fair value calculations.
(2) Those policyholders who have elected systematic withdrawals are assumed to continue taking withdrawals. As a percent of account value, 35% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, the Company assumes that 85% will begin systematic withdrawals after a delay period. The utilization function varies by policyholder age and policy duration. Interactions with lapse and mortality also affect utilization. The utilization rate for GMWB and GMWBL tends to be lower for younger contract owners and contracts that have not reached their maximum accumulated GMWB and GMWBL benefit amount. There is also a lower utilization rate, though indirectly, for contracts that are less "in the money" (i.e., where the notional benefit amount is in excess of the account value) due to higher lapses. Conversely, the utilization rate tends to be higher for contract owners near or beyond retirement age and contracts that have accumulated their maximum GMWB or GMWBL benefit amount. There is also a higher utilization rate, though indirectly, for contracts which are highly "in the money." The chart below provides the GMWBL account value by current age group and average expected delay times from the associated attained age group as of March 31, 2015 (account value amounts are in $ billions).
		Account Values
Attained Age Group		In the Money				Out of the Money				Total			Average Expected Delay (Years)*
< 60		$	2.3			$	0.5			$	2.8		9.4
60-69		6				1.1				7.1			4.8
70+		5.2				0.6				5.8			3
		$	13.5			$	2.2			$	15.7		5.6
* For population expected to withdraw in future. Excludes policies taking systematic withdraws and 15% of policies the Company assumes will never withdraw.
(3) Lapse rates tend to be lower during the contractual surrender charge period and higher after the surrender charge period ends; the highest lapse rates occur in the year immediately after the end of the surrender charge period.
(4) The Company makes dynamic adjustments to lower the lapse rates for contracts that are more “in the money.” The table below shows an analysis of policy account values according to whether they are in or out of the surrender charge period and to whether they are “in the money” or “out of the money” as of March 31, 2015 (account value amounts are in $ billions).
			GMAB						GMWB/GMWBL
	Moneyness		Account Value				Lapse Range		Account Value			Lapse Range
During Surrender Charge Period
	In the Money**		$	—		*	0.08% to 8.2%		$	6.3		0.08% to 6.3%
	Out of the Money		—			*	0.41% to 12%		1.4			0.36% to 7%
After Surrender Charge Period
	In the Money**		$	—		*	2.5% to 21%		$	7.2		1.7% to 21%
	Out of the Money		0.1				12.3% to 31%		1.5			5.6% to 24%
* Less than $0.1.
** The low end of the range corresponds to policies that are highly “in the money.” The high end of the range corresponds to the policies that are close to zero in terms of “in the moneyness.”
(5)	Stabilizer contracts with recordkeeping agreements have a different range of lapse and policyholder deposit assumptions from Stabilizer (Investment only) and MCG contracts as shown below:
	Percentage of Plans			Overall Range of Lapse Rates		Range of Lapse Rates for 85% of Plans		Overall Range of Policyholder Deposits		Range of Policyholder Deposits for 85% of Plans
Stabilizer (Investment Only) and MCG Contracts	88	%		0-25%		0-15%		0-35%		0-15%
Stabilizer with Recordkeeping Agreements	12	%		0-50%		0-25%		0-65%		0-30%
Aggregate of all plans	100	%		0-50%		0-25%		0-65%		0-30%
(6)	Measured as a percentage of assets under management or assets under administration.
(7)	The mortality rate is based on the Annuity 2000 Basic table with mortality improvements.
(8)	The mortality rate is based on the 2012 Individual Annuity Mortality Basic table with mortality improvements.
The following table presents the unobservable inputs for Level 3 fair value measurements as of December 31, 2014:
		Range(1)
Unobservable Input		GMWB / GMWBL			GMAB			FIA			Stabilizer / MCG
Long-term equity implied volatility		15% to 25%			15% to 25%			—			—
Interest rate implied volatility		0.2% to 16%			0.2% to 16%			—			0.2% to 7.6%
Correlations between:
Equity Funds		49% to 98%			49% to 98%			—			—
Equity and Fixed Income Funds		-38% to 62%			-38% to 62%			—			—
Interest Rates and Equity Funds		-32% to -4%			-32% to -4%			—			—
Nonperformance risk		0.13% to 1.10%			0.13% to 1.10%			0.13% to 1.10%			0.13% to 1.10%
Actuarial Assumptions:
Benefit Utilization		85% to 100%		(2)	—			—			—
Partial Withdrawals		0% to 10%			0% to 10%			0% to 5 %			—
Lapses		0.08% to 24%		(3)(4)	0.08% to 31%		(3)(4)	0% to 60%		(3)	0% to 50%	(5)
Policyholder Deposits(6)		—			—			—			0% to 65%	(5)
Mortality		—		(7)	—		(7)	—		(8)	—
(1)	Represents the range of reasonable assumptions that management has used in its fair value calculations.
(2)	Those policyholders who have elected systematic withdrawals are assumed to continue taking withdrawals. As a percent of account value, 33% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, the Company assumes that 85% will begin systematic withdrawals after a delay period. The utilization function varies by policyholder age and policy duration. Interactions with lapse and mortality also affect utilization. The utilization rate for GMWB and GMWBL tends to be lower for younger contract owners and contracts that have not reached their maximum accumulated GMWB and GMWBL benefit amount. There is also a lower utilization rate, though indirectly, for contracts that are less “in the money” (i.e., where the notional benefit amount is in excess of the account value) due to higher lapses. Conversely, the utilization rate tends to be higher for contract owners near or beyond retirement age and contracts that have accumulated their maximum GMWB or GMWBL benefit amount. There is also a higher utilization rate, though indirectly, for contracts which are highly “in the money.” The chart below provides the GMWBL account value by current age group and average expected delay times from the associated attained age group as of December 31, 2014 (account value amounts are in $ billions).
		Account Values
Attained Age Group		In the Money				Out of the Money				Total			Average Expected Delay (Years)*
< 60		$	2.4			$	0.5			$	2.9		9.5
60-69		6.2				1				7.2			4.9
70+		5.2				0.5				5.7			3.1
		$	13.8			$	2			$	15.8		5.8
* For population expected to withdraw in future. Excludes policies taking systematic withdraws and 15% of policies the Company assumes will never withdraw.
-3	Lapse rates tend to be lower during the contractual surrender charge period and higher after the surrender charge period ends; the highest lapse rates occur in the year immediately after the end of the surrender charge period.
(4) The Company makes dynamic adjustments to lower the lapse rates for contracts that are more “in the money.” The table below shows an analysis of policy account values according to whether they are in or out of the surrender charge period and to whether they are “in the money” or “out of the money” as of December 31, 2014 (account value amounts are in $ billions).
			GMAB						GMWB/GMWBL
	Moneyness		Account Value				Lapse Range		Account Value			Lapse Range
During Surrender Charge Period
	In the Money**		$	—		*	0.08% to 8.2%		$	6.7		0.08% to 6.3%
	Out of the Money		—			*	0.41% to 12%		1.2			0.36% to 7%
After Surrender Charge Period
	In the Money**		$	—		*	2.5% to 21%		$	7.2		1.7% to 21%
	Out of the Money		0.1				12.3% to 31%		1.4			5.6% to 24%
* Less than $0.1.
** The low end of the range corresponds to policies that are highly “in the money.” The high end of the range corresponds to the policies that are close to zero in terms of “in the moneyness.”
(5)	Stabilizer contracts with recordkeeping agreements have a different range of lapse and policyholder deposit assumptions from Stabilizer (Investment only) and MCG contracts as shown below:
	Percentage of Plans			Overall Range of Lapse Rates		Range of Lapse Rates for 85% of Plans		Overall Range of Policyholder Deposits		Range of Policyholder Deposits for 85% of Plans
Stabilizer (Investment Only) and MCG Contracts	87	%		0-30%		0-15%		0-45%		0-15%
Stabilizer with Recordkeeping Agreements	13	%		0-50%		0-25%		0-65%		0-25%
Aggregate of all plans	100	%		0-50%		0-25%		0-65%		0-25%
(6)	Measured as a percentage of assets under management or assets under administration.
(7)	The mortality rate is based on the Annuity 2000 Basic table with mortality improvements.
(8)	The mortality rate is based on the 2012 Individual Annuity Mortality Basic table with mortality improvements.
Generally, the following will cause an increase (decrease) in the GMAB, GMWB and GMWBL embedded derivative fair value liabilities:
•	An increase (decrease) in long-term equity implied volatility
•	An increase (decrease) in interest rate implied volatility
•	An increase (decrease) in equity-interest rate correlations
•	A decrease (increase) in nonperformance risk
•	A decrease (increase) in mortality
•	An increase (decrease) in benefit utilization
•	A decrease (increase) in lapses
Changes in fund correlations may increase or decrease the fair value depending on the direction of the movement and the mix of funds. Changes in partial withdrawals may increase or decrease the fair value depending on the timing and magnitude of withdrawals.
Generally, the following will cause an increase (decrease) in the FIA embedded derivative fair value liability:
•	A decrease (increase) in nonperformance risk
•	A decrease (increase) in lapses
Generally, the following will cause an increase (decrease) in the derivative and embedded derivative fair value liabilities related to Stabilizer and MCG contracts:
•	An increase (decrease) in interest rate implied volatility
•	A decrease (increase) in nonperformance risk
•	A decrease (increase) in lapses
•	A decrease (increase) in policyholder deposits
The Company notes the following interrelationships:
•	Higher long-term equity implied volatility is often correlated with lower equity returns, which will result in higher in-the-moneyness, which in turn, results in lower lapses due to the dynamic lapse component reducing the lapses. This increases the projected number of policies that are available to use the GMWBL benefit and may also increase the fair value of the GMWBL.
•	Generally, an increase (decrease) in benefit utilization will decrease (increase) lapses for GMWB and GMWBL.
•	Generally, an increase (decrease) in interest rate volatility will increase (decrease) lapses of Stabilizer and MCG contracts due to dynamic participant behavior.
Other Financial Instruments
The carrying values and estimated fair values of the Company’s financial instruments as of the dates indicated:
	March 31, 2015								December 31, 2014
	Carrying				Fair				Carrying			Fair
	Value				Value				Value			Value
Assets:
Fixed maturities, including securities pledged	$	76,302.40			$	76,302.40			$	74,659.40		$	74,659.40
Equity securities, available-for-sale	283.6				283.6				271.8			271.8
Mortgage loans on real estate	10,194.50				10,644.90				9,794.10			10,286.60
Policy loans	2,074.10				2,074.10				2,104.00			2,104.00
Limited partnerships/corporations	375.5				375.5				363.2			363.2
Cash, cash equivalents, short-term investments and short-term investments under securities loan agreements	4,484.60				4,484.60				5,069.30			5,069.30
Derivatives	2,127.00				2,127.00				1,819.60			1,819.60
Other investments	97				107.1				110.3			120.4
Assets held in separate accounts	107,039.40				107,039.40				106,007.80			106,007.80
Liabilities:
Investment contract liabilities:
Funding agreements without fixed maturities and deferred annuities(1)	50,411.10				56,725.70				49,850.90			55,171.40
Funding agreements with fixed maturities and guaranteed investment contracts	1,564.00				1,543.00				1,593.00			1,564.80
Supplementary contracts, immediate annuities and other	2,612.10				2,825.30				2,535.30			2,706.20
Derivatives:
Annuity product guarantees:
FIA	2,015.60				2,015.60				1,970.00			1,970.00
GMAB/GMWB/GMWBL	1,860.00				1,860.00				1,586.70			1,586.70
Stabilizer and MCGs	148.1				148.1				102.9			102.9
Other derivatives	974.3				974.3				849.3			849.3
Long-term debt	3,516.00				3,968.50				3,515.70			3,875.40
Embedded derivatives on reinsurance	163.5				163.5				139.6			139.6
(1) Certain amounts included in Funding agreements without fixed maturities and deferred annuities are also reflected within the Annuity product guarantees section of the table above.
The following disclosures are made in accordance with the requirements of ASC Topic 825 which requires disclosure of fair value information about financial instruments, whether or not recognized at fair value on the Condensed Consolidated Balance Sheets, for which it is practicable to estimate that value. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates, in many cases, could not be realized in immediate settlement of the instrument.
ASC Topic 825 excludes certain financial instruments, including insurance contracts and all nonfinancial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.
The following valuation methods and assumptions were used by the Company in estimating the fair value of the following financial instruments, which are not carried at fair value on the Condensed Consolidated Balance Sheets:
Mortgage loans on real estate: The fair values for mortgage loans on real estate are estimated on a monthly basis using discounted cash flow analyses and rates currently being offered in the marketplace for similar loans to borrowers with similar credit ratings. Loans with similar characteristics are aggregated for purposes of the calculations. Mortgage loans on real estate are classified as Level 3.
Policy loans: The fair value of policy loans approximates the carrying value of the loans. Policy loans are collateralized by the cash surrender value of the associated insurance contracts and are classified as Level 2.
Limited partnerships/corporations: The fair value for these investments, primarily private equity fund of funds and hedge funds, is based on actual or estimated Net Asset Value (“NAV”) information, as provided by the investee and are classified as Level 3.
Other investments: Primarily Federal Home Loan Bank (“FHLB”) stock, which is carried at cost and periodically evaluated for impairment based on ultimate recovery of par value and is classified as Level 1.
Investment contract liabilities:
Funding agreements without fixed maturities and deferred annuities: Fair value is estimated as the mean present value of stochastically modeled cash flows associated with the contract liabilities taking into account assumptions about contract holder behavior. The stochastic valuation scenario set is consistent with current market parameters and discount is taken using stochastically evolving risk-free rates in the scenarios plus an adjustment for nonperformance risk. Margins for non-financial risks associated with the contract liabilities are also included. These liabilities are classified as Level 3.
Funding agreements with fixed maturities and guaranteed investment contracts: Fair value is estimated by discounting cash flows, including associated expenses for maintaining the contracts, at rates, that are risk-free rates plus an adjustment for nonperformance risk. These liabilities are classified as Level 2.
Supplementary contracts and immediate annuities: Fair value is estimated as the mean present value of the single deterministically modeled cash flows associated with the contract liabilities discounted using stochastically evolving short risk-free rates in the scenarios plus an adjustment for nonperformance risk. The valuation is consistent with current market parameters. Margins for non-financial risks associated with the contract liabilities are also included. These liabilities are classified as Level 3.
Long-term debt: Estimated fair value of the Company’s long-term debt is based upon discounted future cash flows using a discount rate approximating the current market rate, incorporating nonperformance risk. Long-term debt is classified as Level 2.
Fair value estimates are made at a specific point in time, based on available market information and judgments about various financial instruments, such as estimates of timing and amounts of future cash flows. Such estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument, nor do they consider the tax impact of the realization of unrealized capital gains (losses). In many cases, the fair value estimates cannot be substantiated by comparison to independent markets, nor can the disclosed value be realized in immediate settlement of the instruments. In evaluating the Company’s management of interest rate, price and liquidity risks, the fair values of all assets and liabilities should be taken into consideration, not only those presented above.

Deferred_Policy_Acquisition_Co

Deferred Policy Acquisition Costs and Value of Business Acquired	3 Months Ended
	Mar. 31, 2015
Deferred Policy Acquisition Costs and Value of Business Acquired [Abstract]
Deferred Policy Acquisition Costs and Value of Business Acquired	Deferred Policy Acquisition Costs and Value of Business Acquired
	Activity within DAC and VOBA was as follows for the periods indicated:
		DAC			VOBA			Total
	Balance as of January 1, 2015	$	3,890.90		$	680		$	4,570.90
	Deferrals of commissions and expenses	86.5			2.6			89.1
	Amortization:
	Amortization	(159.8		)	(37.5		)	(197.3		)
	Interest accrued(1)	57.8			21.4			79.2
	Net amortization included in Condensed Consolidated Statements of Operations	(102.0		)	(16.1		)	(118.1		)
	Change in unrealized capital gains/losses on available-for-sale securities	(173.5		)	(124.1		)	(297.6		)
	Balance as of March 31, 2015	$	3,701.90		$	542.4		$	4,244.30
		DAC			VOBA			Total
	Balance as of January 1, 2014	$	4,316.10		$	1,035.50		$	5,351.60
	Deferrals of commissions and expenses	91.6			3.4			95
	Amortization:
	Amortization	(159.6		)	(47.3		)	(206.9		)
	Interest accrued(1)	58.3			22.5			80.8
	Net amortization included in Condensed Consolidated Statements of Operations	(101.3		)	(24.8		)	(126.1		)
	Change in unrealized capital gains/losses on available-for-sale securities	(293.3		)	(166.4		)	(459.7		)
	Balance as of March 31, 2014	$	4,013.10		$	847.7		$	4,860.80
	(1) Interest accrued at the following rates for DAC: 1.5% to 7.5% during 2015 and 0.6% to 7.4% during 2014. Interest accrued at the following rates for VOBA: 4.3% to 7.5% during 2015 and 4.1% to 7.5% during 2014.

ShareBased_Incentive_Compensat

Share-Based Incentive Compensation Plans	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Incentive Compensation Plans	Share-based Incentive Compensation Plans
	ING U.S., Inc. 2013 Omnibus Employee Incentive Plan and Voya Financial, Inc. 2014 Omnibus Employee Incentive Plan
	The Company has provided equity-based compensation awards to its employees under the ING U.S., Inc. 2013 Omnibus Employee Incentive Plan (the “2013 Omnibus Plan”) and the Voya Financial, Inc. 2014 Omnibus Employee Incentive Plan (the "2014 Omnibus Plan"). At inception of the 2013 Omnibus Plan, a total of 7,650,000 shares of Company common stock were reserved and available for issuance under the plan. As of March 31, 2015, common stock reserved and available for issuance under the 2013 Omnibus Plan was 162,690 shares.
	The 2014 Omnibus Plan was adopted by the Company's Board of Directors and approved by shareholders in 2014, and is substantially the same as the 2013 Omnibus Plan, except for certain changes intended to provide for the opportunity for performance-based compensation awards to comply with the criteria for tax deductibility set forth in Section 162(m) of the Internal Revenue Code. The 2014 Omnibus Plan provides for 17,800,000 shares of common stock to be available for issuance as equity-based compensation awards. As of March 31, 2015, common stock reserved and available for issuance under the 2014 Omnibus Plan was 15,750,964 shares.
	The 2013 Omnibus Plan and the 2014 Omnibus Plan (together, the “Omnibus Plans”) each permit the granting of a wide range of equity-based awards, including restricted stock units (“RSUs”), which represent the right to receive a number of shares of Company common stock upon vesting; restricted stock, which are shares of Company stock that are subject to sale and transfer restrictions until the vesting conditions are met; performance share units (“PSUs”), which are RSUs subject to certain time- and performance-based vesting conditions, and under which the number of shares of common stock delivered upon vesting varies with the level of achievement of performance criteria; and stock options. Grants of equity-based awards under the Omnibus Plans are made by the Compensation and Benefits Committee (the “Committee”) of the Board of Directors of the Company, and are subject to such terms and conditions as the Committee may determine, including in respect of vesting and forfeiture, subject to certain limitations provided in the Omnibus Plans. Equity-based awards under the Omnibus Plans may carry dividend equivalent rights, pursuant to which notional dividends accumulate on unvested equity awards and are paid, in cash, upon vesting. Awards made under the Omnibus Plans, to date, have included dividend equivalent rights. Dividend equivalents are credited to the recipient and are paid only to the extent the applicable performance criteria and service conditions are met.
	During the three months ended March 31, 2015, the Company's equity awards to its employees consisted solely of RSUs and PSUs awarded under the 2014 Omnibus Plan. PSUs awarded during the three months ended March 31, 2015 entitle recipients to receive, upon vesting, a number of shares of common stock that ranges from 0% to 150% of the number of PSUs awarded, depending on the level of achievement of the specified performance conditions. The establishment and the achievement of performance objectives are determined and approved by the Committee. Except under certain termination conditions, RSUs and PSUs vest no earlier than one year from the date of the award and no later than three years from the date of the award. Dividend equivalents are credited to the recipient and are paid only to the extent the applicable performance criteria and service conditions are met. In the case of retirement (as defined in the award agreement), awards vest depending on the employee’s age and years of service subject to the satisfaction of the applicable performance criteria.
	If an award under the Omnibus Plans is forfeited, expired, terminated or otherwise lapses, the shares of Company common stock underlying that award will again become available for issuance. Shares withheld by the Company to pay employee taxes, or which are withheld by or tendered to the Company to pay the exercise price of stock options (or are repurchased from an option holder by the Company with proceeds from the exercise of stock options) are not available for reissuance.
	As of March 31, 2015, there were no stock options issued or outstanding under the Omnibus Plans.
	Deal Incentive Awards: Upon closing of the IPO, RSUs were granted to employees of the Company under the 2013 Omnibus Plan in connection with Deal Incentive Awards. Deal Incentive Awards are conditional agreements to grant equity awards to certain employees of the Company, upon the closing of the IPO or upon the satisfaction of certain other conditions. RSUs granted in connection with Deal Incentive Awards are subject to certain vesting conditions, lockup period and other holding requirements.
	Due to the completion of the March 2015 Offering, the remaining 70,880 RSUs vested during the three months ended March 31, 2015, and were subsequently issued on April 21, 2015.
	Voya Financial, Inc. 2013 Omnibus Non-Employee Director Incentive Plan
	The Company offers equity-based awards to Voya Financial, Inc. non-employee directors under the Voya Financial, Inc. 2013 Omnibus Non-Employee Director Incentive Plan (“2013 Director Plan”), which the Company adopted in connection with the IPO. A total of 288,000 shares of Company common stock may be issued under the 2013 Director Plan. The material terms of the 2013 Director Plan are substantially consistent with the material terms of the Omnibus Plans described above.
	Non-Employee Director Service Grants: In March of 2015, the Company granted 16,008 RSUs to certain non-employee directors serving on the Board. These awards vest one-third on each of the first, second and third anniversary of the grant date, in each case provided that the grantee remains a director of the Company on the relevant vesting date, and provided that no shares will be delivered in connection with the RSUs until such time as the director's service on the Board is terminated. On April 13, 2015, the Company granted an additional 1,875 RSUs to another non-employee director in connection with his election to the board.
	Voya Financial, Inc. 2014 Employee Phantom Stock Plan
	The Company provided certain of its non-executive employees with cash-settled awards under the Voya Financial, Inc. 2014 Employee Phantom Stock Plan (the “Phantom Plan”). Awards made under the Phantom Plan were designed to provide grantees with an economic benefit that is equivalent to an analogous grant under the Omnibus Plans; however the Company must deliver cash, and may not deliver equity, upon vesting of such awards. Awards were granted in the form of phantom RSUs and phantom PSUs, each of which was designed to mirror the value of an equity-settled RSU or PSU awarded under the Omnibus Plans, with the cash settlement value determined based on the closing price of a share of Company common stock on the New York Stock Exchange on the trading day immediately preceding the date such award vests. As of March 31, 2015, the Company had 112,711 phantom RSUs and 60,521 phantom PSUs, respectively, outstanding to its employees.
	ING Group Equity-Based Plans
	Prior to the IPO, employees of the Company received equity-based compensation in the form of ING Group equity awards, pursuant to equity compensation plans adopted by ING Group. These plans included:
	Long-term Sustainable Performance Plan: In 2012 and 2013 employees of the Company received ING Group-based equity awards under the Long-Term Sustainable Performance Plan (“LSPP”) of ING Group. LSPP awards made to Company employees are settled by delivery of ING Group American Depository Receipts (“ADRs”).
	LSPP awards to employees of the Company provided in 2013 were, upon the closing of the IPO, converted into Company-based equity awards under the 2013 Omnibus Plan. Outstanding awards made in 2012 were not converted. The PSUs were considered granted upon the establishment and communication of the performance measures for the applicable performance period by the Committee, which is generally carried out during the first quarter of each year, although awards in respect of the 2013 performance year were not granted until the second quarter of that year.
	LSPP awards provided to the Company’s employees in 2012 were not converted and have continued to vest according to the terms of their original grant, with substantially all such awards having vested during or prior to the first quarter of 2015.
	Equity Compensation Plan: In 2012 and 2013, certain employees of the Company (principally those employed within the Investment Management business) received equity-based awards under the ING America Insurance Holdings, Inc. Equity Compensation Plan (the “Equity Compensation Plan”). Awards made under the Equity Compensation Plan are settled in the form of ING Group ADRs.
	Equity Compensation Plan awards to employees of the Company provided in 2013 were, upon the closing of the IPO, converted into Company-based equity awards under the 2013 Omnibus Plan. These awards are subject to a three-year vesting period provided that the participant is still employed by the Company on the relevant vesting date.
	Compensation Cost
	The Company measures the cost of the share-based awards at their grant date fair value, based upon the market value of the stock, and recognizes that cost over the vesting period. Differences in actual versus expected experience or changes in expected forfeitures are recognized in the period of change. Compensation expense is principally related to the granting of PSUs and RSUs and is recognized in Operating expenses in the Condensed Consolidated Statements of Operations.
	The liability related to the awards made under the Phantom Plan is recorded within Other liabilities. Unlike equity-settled awards, which have a fixed grant-date fair value, the fair value of unvested cash-settled awards is remeasured at the end of each reporting period until the awards vest.
	As a result of the reduction of ING Group’s ownership in Voya Financial, Inc. to approximately 43% on March 25, 2014, those ING Group equity awards that were not converted to equity awards of Voya Financial, Inc. are no longer deemed to be granted to employees of ING Group. Therefore, beginning on March 25, 2014, the compensation cost is remeasured at each reporting date until the awards vest. The remeasured cost is recognized prospectively on a pro-rata basis equal to the proportion of service provided by the award recipients as nonemployees to the total requisite service period of the award. The corresponding amount for the 2012 ING Group LSPP awards, which are settled through the issuance of new ING Group equity securities, is recorded as a capital contribution. The corresponding amount for the 2012 Equity Compensation Plan awards, which are settled through the delivery of ING Group ADRs acquired by the Company in the secondary market, is recorded as a liability. The impact of the remeasurement of the compensation cost of these awards for the three months ended March 31, 2015 and 2014 was immaterial.
	The following table summarizes pre-tax share-based compensation costs, which includes costs related to awards granted under the Omnibus Plans, Director Plan, Phantom Plan and ING Group share-based compensation plans for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	RSUs(1)	$	12.7		$	7
	RSUs - Deal incentive awards	2.1			5.6
	PSU awards(1)	17.1			19.2
	Phantom Plan	2.3			0.3
	Total	$	34.2		$	32.1
	Income tax benefit(2)	12			—
	Share-based compensation	$	22.2		$	32.1
	(1) This table includes compensation costs of $0.7 and $7.9 for the three months ended March 31, 2015, related to ING Group RSU and PSU awards, respectively. In addition, this table includes compensation costs of $1.8 and $10.6 for the three months ended March 31, 2014, related to ING Group RSU and PSU awards, respectively.
	(2) The Company recognized no income tax benefit due to valuation allowances for the three months ended March 31, 2014. See the Income Taxes Note to these Condensed Consolidated Financial Statements for additional information.
	Awards Outstanding
	The following table summarizes the number of awards under the Omnibus Plans for the period indicated:
		RSUs					RSUs-Deal Incentive Awards					PSU Awards
	(awards in millions)	Number of Awards		Weighted Average Grant Date Fair Value			Number of Awards			Weighted Average Grant Date Fair Value		Number of Awards			Weighted Average Grant Date Fair Value
	Outstanding as of December 31, 2014	3.2		$	28.8		—			$	—	0.6			$	37.01
	Adjustment for PSU performance factor	N/A		N/A			N/A			N/A		0.2			37.01
	Granted	1.3		44.21			0.1			30.03		0.9			44.22
	Vested	(0.8	)	26.25			(0.1	)	(1)	30.03		(0.8	)		37.01
	Forfeited	(0.1	)	29.37			—			—		—		*	42.09
	Outstanding as of March 31, 2015	3.6		$	34.66		—			$	—	0.9			$	44.22
	* Less than 0.1.
	(1) As of March 31, 2015, these vested shares have not yet been issued.

Shareholders_Equity_and_Earnin

Shareholders' Equity and Earnings per Common Share	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Shareholder's Equity and Earnings per Common Share	Shareholders' Equity and Earnings per Common Share
	Common Shares
	The following table presents the rollforward of common shares used in calculating the weighted average shares utilized in the basic earnings per common share calculation for the periods indicated:
		Common Shares
		2015							2014
	(shares in millions)	Issued		Held in Treasury			Outstanding		Issued	Held in Treasury	Outstanding
	Common shares, balance as of December 31, 2014	263.7		21.8			241.9		261.8	0.1	261.7
	Common shares issued	—		—			—		—	—	—
	Common shares acquired - share repurchase	—		14.3			(14.3	)	—	7.5	(7.5	)
	Share-based compensation	1.5		0.1			1.4		0.8	0.3	0.5
	Common shares, balance as of March 31, 2015	265.2		36.2			229		262.6	7.9	254.7
	Share Repurchase Program
	Direct Share Repurchase Program
	On February 5, 2015, the Company’s Board of Directors increased the authorization under the Direct Share Repurchase Program by an additional $750.0, with such authorization to expire (unless subsequently extended) no later than December 31, 2015. The authorization under the Direct Share Repurchase Program may be terminated, increased or decreased by the Company’s Board of Directors at any time.
	On March 9, 2015, the Company repurchased 13,599,274 shares of its common stock from ING Group for an aggregate purchase price of $600.0. This repurchase reduced the remaining authorization under the Share Repurchase Program to $129.7.
	Additionally, during the three months ended March 31, 2015, the Company acquired 707,563 shares through open market repurchases for an aggregate purchase price of $30.9.
	Net Withholding of Shares
	In connection with the vesting of equity-based compensation awards, employees may remit to the Company, or the Company may withhold into treasury stock, shares of common stock in respect of tax withholding obligations associated with such vesting. For the three months ended March 31, 2015, the Company increased its treasury stock by 64,731 shares in connection with such withholding activities.
	Warrants
	On May 7, 2013, the Company issued to ING Group warrants to purchase up to 26,050,846 shares of the Company's common stock equal in the aggregate to 9.99% of the issued and outstanding shares of common stock at that date. The current exercise price of the warrants is $48.75 per share of common stock, subject to adjustments, including for stock dividends, cash dividends in excess of $0.01 per share a quarter, subdivisions, combinations, reclassifications and non-cash distributions. The warrants also provide for, upon the occurrence of certain change of control events affecting the Company, an increase in the number of shares to which a warrant holder will be entitled upon payment of the aggregate exercise price of the warrant. The warrants became exercisable (subject to the limitation stated below with respect to ING Group and its affiliates) starting on the first anniversary of the completion of the IPO (May 7, 2014) and expire on the tenth anniversary of the completion of the IPO (May 7, 2023). The warrants are net share settled, which means that no cash will be payable by a warrant holder in respect of the exercise price of a warrant upon exercise, and are classified as permanent equity. They have been recorded at their fair value determined on the issuance date of May 7, 2013 in the amount of $94.0 as an addition and reduction to Additional paid-in-capital. Warrant holders are not entitled to receive dividends.
	The warrants are not exercisable by ING Group or any of its affiliates before January 1, 2017, but are exercisable in accordance with their terms before January 1, 2017 by holders other than ING Group or its affiliates, if any.
	The following table presents a reconciliation of Net income (loss) and shares used in calculating basic and diluted net income (loss) per common share for the periods indicated:
	(in millions, except for per share data)	Three Months Ended March 31,
	Earnings	2015			2014
	Net income (loss) available to common shareholders:
	Net income (loss)	$	211.6		$	271.6
	Less: Net income (loss) attributable to noncontrolling interest	26.1			13.5
	Net income (loss) available to common shareholders	$	185.5		$	258.1
	Weighted average common shares outstanding
	Basic	238.5			261.1
	Dilutive Effects:(1) (2)
	RSUs	1.7			1
	RSUs - Deal incentive awards	—			0.8
	PSU awards	0.5			0.6
	Diluted	240.7			263.5
	Net income (loss) available to common shareholders per common share
	Basic	$	0.78		$	0.99
	Diluted	0.77			0.98
	(1) For the three months ended March 31, 2015, weighted average shares used for calculating basic and diluted earnings per share excludes the dilutive impact of warrants, as the inclusion of this equity instrument would be antidilutive to the earnings per share calculation due to “out of the moneyness” in the periods presented.
	(2) For the three months ended March 31, 2014, the Company had no antidilutive weighted average common shares affecting the earnings per share calculation.
	Dividends to Common Shareholders
	The declaration and payment of common share dividends by the Company is subject to the discretion of its Board of Directors and will depend on the Company's overall financial condition, results of operations, capital levels, cash requirements, future prospects, receipt of dividends from Voya Financial, Inc.'s insurance subsidiaries, risk management considerations and other factors deemed relevant by the Board. There are no significant restrictions, other than those generally applicable to corporations incorporated in Delaware and those described in the Management’s Discussion and Analysis of Financial Condition and Results of Operations Liquidity and Capital Resources - Debt Securities - Junior Subordinated Notes. to these Condensed Consolidated Financial Statements, on the payment of dividends by the Company.
	On February 5, 2015, Voya Financial, Inc.'s Board of Directors declared a quarterly cash dividend of $0.01 per share of outstanding common stock. The dividend was paid on March 31, 2015 to shareholders of record of Voya Financial, Inc. as of February 27, 2015.
	On April 30, 2015, Voya Financial, Inc.'s Board of Directors declared a quarterly cash dividend of $0.01 per share of outstanding common stock. The dividend is to be paid on June 30, 2015 to shareholders of record of Voya Financial, Inc. as of May 29, 2015.

Insurance_Subsidiaries

Insurance Subsidiaries	3 Months Ended
	Mar. 31, 2015
Insurance [Abstract]
Insurance Subsidiaries	Insurance Subsidiaries
	Restrictions on Dividends and Returns of Capital from Subsidiaries
	The Company's business is conducted through operating subsidiaries. U.S. insurance laws and regulations regulate the payment of dividends and other distributions by its U.S. insurance subsidiaries to their respective parents. These restrictions are based in part on the prior year's statutory income and surplus. In general, dividends up to specified levels are considered ordinary and may be paid without prior approval. Dividends in larger amounts, or "extraordinary" dividends, are subject to approval by the insurance commissioner of the state of domicile of the insurance subsidiary proposing to pay the dividend. In addition, under the insurance laws applicable to the Company's insurance subsidiaries domiciled in Connecticut, Iowa and Minnesota (these insurance subsidiaries, together with the Company’s insurance subsidiary domiciled in Colorado are referred to collectively, as the Company’s “principal insurance subsidiaries”), no dividend or other distribution exceeding an amount equal to an insurance company’s earned surplus may be paid without the domiciliary insurance regulator’s prior approval.
	Security Life of Denver International ("SLDI"), the Company's Arizona captive, may not declare or pay dividends other than in accordance with its annual capital and dividend plan as approved by the Arizona Department of Insurance, which includes a minimum capital requirement.
	The Company may receive dividends from or contribute capital to its wholly owned non-life insurance subsidiaries such as broker-dealers, investment management entities and intermediate holding companies.
	Insurance Subsidiaries - Dividends, Returns of Capital, and Capital Contributions
	On May 5, 2015, Voya Financial, Inc.'s principal insurance subsidiaries domiciled in Connecticut, Iowa and Minnesota declared ordinary dividends in the aggregate amount of $819.0 payable on or after May 20, 2015.
	Additionally, Voya Financial, Inc.'s principal insurance subsidiaries domiciled in Colorado and Connecticut are permitted to pay ordinary dividends in the aggregate amount of $201.5, with $111.5 of ordinary dividends payable by its Colorado insurance subsidiary after June 24, 2015 and $90.0 of ordinary dividends payable by its Connecticut insurance subsidiary after December 22, 2015.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)
	Shareholders' equity included the following components of Accumulated Other Comprehensive Income (“AOCI”) as of the dates indicated:
		March 31,
		2015				2014
	Fixed maturities, net of OTTI	$	6,777.30			$	4,759.70
	Equity securities, available-for-sale	32.6				31.8
	Derivatives	262.7				158
	DAC/VOBA adjustment on available-for-sale securities	(2,138.2		)		(1,514.7		)
	Sales inducements adjustment on available-for-sale securities	(86.0		)		(74.8		)
	Other	(31.5		)		(28.0		)
	Unrealized capital gains (losses), before tax	4,816.90				3,332.00
	Deferred income tax asset (liability)	(1,324.9		)		(802.7		)
	Net unrealized capital gains (losses)	3,492.00				2,529.30
	Pension and other postretirement benefits liability, net of tax	39.2				48.2
	AOCI	$	3,531.20			$	2,577.50
	Changes in AOCI, including the reclassification adjustments recognized in the Condensed Consolidated Statements of Operations were as follows for the periods indicated:
		Three Months Ended March 31, 2015
		Before-Tax Amount				Income Tax			After-Tax Amount
	Available-for-sale securities:
	Fixed maturities	$	926			$	(323.5	)	$	602.5
	Equity securities	2.5				(0.9		)	1.6
	Other	0.1				—			0.1
	OTTI	5.7				(2.0		)	3.7
	Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statement of Operations	1				(0.4		)	0.6
	DAC/VOBA	(297.6		)	(1)	104.2			(193.4		)
	Sales inducements	(10.8		)		3.8			(7.0		)
	Change in unrealized gains/losses on available-for-sale securities	626.9				(218.8		)	408.1
	Derivatives:
	Derivatives	37.1			(2)	(13.0		)	24.1
	Adjustments related to effective cash flow hedges for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	(3.9		)		1.4			(2.5		)
	Change in unrealized gains/losses on derivatives	33.2				(11.6		)	21.6
	Pension and other postretirement benefits liability:
	Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statement of Operations	(3.4		)		1.2			(2.2		)
	Change in pension and other postretirement benefits liability	(3.4		)		1.2			(2.2		)
	Change in Other comprehensive income (loss)	$	656.7			$	(229.2	)	$	427.5
	(1) See the Deferred Policy Acquisition Costs and Value of Business Acquired Note to these Condensed Consolidated Financial Statements for additional information.
	(2) See the Derivative Financial Instruments Note to these Condensed Consolidated Financial Statements for additional information.
		Three Months Ended March 31, 2014
		Before-Tax Amount				Income Tax			After-Tax Amount
	Available-for-sale securities:
	Fixed maturities	$	1,588.40			$	(555.6	)	$	1,032.80
	Equity securities	(16.0		)		4.2			(11.8		)
	Other	(0.3		)		0.1			(0.2		)
	OTTI	15.6				(5.5		)	10.1
	Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statement of Operations	(8.8		)		3.1			(5.7		)
	DAC/VOBA	(459.7		)	(1)	160.9			(298.8		)
	Sales inducements	(16.7		)		5.8			(10.9		)
	Change in unrealized gains/losses on available-for-sale securities	1,102.50				(387.0		)	715.5
	Derivatives:
	Derivatives	24.6			(2)	(8.6		)	16
	Adjustments related to effective cash flow hedges for amounts recognized in Net investment income in the Condensed Consolidated Statement of Operations	(1.4		)		0.5			(0.9		)
	Change in unrealized gains/losses on derivatives	23.2				(8.1		)	15.1
	Pension and other postretirement benefits liability:
	Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statement of Operations	(3.4		)		1.2			(2.2		)
	Change in pension and other postretirement benefits liability	(3.4		)		1.2			(2.2		)
	Change in Other comprehensive income (loss)	$	1,122.30			$	(393.9	)	$	728.4
	(1) See the Deferred Policy Acquisition Costs and Value of Business Acquired Note to these Condensed Consolidated Financial Statements for additional information.
	(2) See the Derivative Financial Instruments Note to these Condensed Consolidated Financial Statements for additional information.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	Income taxes were different from the amount computed by applying the federal income tax rate to Income (loss) before income taxes for the following reasons for the periods indicated, as expressed in percentages:
		Three Months Ended March 31,
		2015		2014
	Income tax expense (benefit) at federal statutory rate	35	%	35	%
	Tax effect of:
	Valuation allowance	(5.6	)	(17.5	)
	Dividend received deduction	(15.4	)	(8.5	)
	Audit settlement	(0.1	)	(0.4	)
	State tax expense (benefit)	6		2.2
	Noncontrolling interest	(3.6	)	(1.6	)
	Nondeductible expenses	0.1		0.1
	Other	1.1		0.9
	Income tax expense (benefit)	17.5	%	10.2	%
	The Company uses the estimated annual effective tax rate method in computing its interim tax provision. Certain items, including changes in the realizability of deferred tax assets and changes in liabilities for uncertain tax positions, are excluded from the estimated annual effective tax rate and the actual tax expense or benefit is reported in the period that the related item is incurred.
	Valuation allowances are provided when it is considered unlikely that deferred tax assets will be realized. As of March 31, 2015 and December 31, 2014, the Company had total valuation allowances of approximately $1.0 billion. As of March 31, 2015 and December 31, 2014, $1.3 billion of these valuation allowances were allocated to continuing operations, and $(354.1) as of the end of each period was allocated to Other comprehensive income (loss) related to realized and unrealized capital losses.
	For the three months ended March 31, 2015 and 2014, the total decreases in the valuation allowance were $14.5 and $53.0, respectively, all of which were allocated to continuing operations.
	Tax Regulatory Matters
	During April 2015, the Internal Revenue Service (“IRS”) completed its examination of the Company's returns through tax year 2013. The 2013 audit settlement did not have a material impact on the Company. The Company is currently under audit by the IRS, and it is expected that the examination of tax year 2014 will be finalized within the next twelve months. The Company and the IRS have agreed to participate in the Compliance Assurance Process for the tax years 2014 and 2015.
	The Company does not expect any material changes to the unrecognized tax benefits within the next twelve months.

Financing_Agreements

Financing Agreements	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Financing Agreements	Financing Agreements
	Short-term Debt
	The Company did not have any short-term debt borrowings outstanding as of March 31, 2015 and December 31, 2014.
	Long-term Debt
	The following table summarizes the carrying value of the Company’s long-term debt securities issued and outstanding as of March 31, 2015 and December 31, 2014:
		Maturity	March 31, 2015			December 31, 2014
	7.25% Voya Holdings, Inc. debentures due 2023(1)	8/15/23	$	159.2		$	159
	7.63% Voya Holdings, Inc. debentures due 2026(1)	8/15/26	232.4			232.3
	8.42% Equitable of Iowa Companies Capital Trust II notes due 2027	4/1/27	13.8			13.8
	6.97% Voya Holdings, Inc. debentures due 2036(1)	8/15/36	108.6			108.6
	1.00% Windsor Property Loan	6/14/27	4.9			4.9
	5.5% Senior Notes due 2022	7/15/22	849.6			849.6
	2.9% Senior Notes due 2018	2/15/18	998.9			998.9
	5.65% Fixed-to-Floating Rate Junior Subordinated Notes due 2053	5/15/53	750			750
	5.7% Senior Notes due 2043	07/15/2043	398.6			398.6
	Subtotal		3,516.00			3,515.70
	Less: Current portion of long-term debt		—			—
	Total		$	3,516.00		$	3,515.70
	(1) Guaranteed by ING Group.
	As of March 31, 2015 and December 31, 2014, the Company was in compliance with its debt covenants.
	Unsecured senior debt, which consists of senior fixed rate notes and guarantees of fixed rate notes, ranks highest in priority, followed by subordinated debt, which consists of junior subordinated debt securities.
	Put Option Agreement for Senior Debt Issuance
	On March 17, 2015, the Company entered into a ten-year put option agreement with a Delaware trust formed by the Company, in connection with the sale by the trust of $500.0 aggregate face amount of pre-capitalized trust securities redeemable February 15, 2025 (“P-Caps”) in a Rule 144A private placement. The trust invested the proceeds from the sale of the P-Caps in a portfolio of principal and interest strips of U.S. Treasury securities. The put option agreement provides Voya Financial, Inc. the right to sell to the trust at any time up to $500.0 of its 3.976% Senior Notes due 2025 (“3.976% Senior Notes”) and receive in exchange a corresponding amount of the principal and interest strips of U.S. Treasury securities held by the trust. The 3.976% Senior Notes will not be issued unless and until the put option is exercised. In return, the Company agreed to pay a semi-annual put premium to the trust at a rate of 1.875% per annum applied to the unexercised portion of the put option, and to reimburse the trust for its expenses. The put premium is recorded in Operating expenses in the Company’s Condensed Consolidated Statements of Operations. The 3.976% Senior Notes will be fully, irrevocably and unconditionally guaranteed by Voya Holdings. The Company’s obligations under the put option agreement and the expense reimbursement agreement with the trust are also guaranteed by Voya Holdings.
	The put option described above will be exercised automatically in full upon the Company’s failure to make certain payments to the trust, including any failure to pay the put option premium or expense reimbursements when due, if the failure to pay is not cured within 30 days, and upon certain bankruptcy events involving the Company or Voya Holdings. The Company is also required to exercise the put option in full: (i) if the Company reasonably believes that its consolidated shareholders’ equity, calculated in accordance with U.S. GAAP but excluding AOCI and Noncontrolling interest, has fallen below $3.0 billion, subject to adjustment in certain cases; (ii) upon the occurrence of an event of default under the 3.976% Senior Notes; and (iii) if certain events occur relating to the trust’s status as an “investment company” under the Investment Company Act of 1940.
	The Company has a one-time right to unwind a prior voluntary exercise of the put option by repurchasing all of the 3.976% Senior Notes then held by the trust in exchange for a corresponding amount of U.S. Treasury securities. If the put option has been fully exercised, the 3.976% Senior Notes issued may be redeemed by the Company prior to their maturity at par or, if greater, at a make-whole redemption price, in each case plus accrued and unpaid interest to the date of redemption. The P-Caps are to be redeemed by the trust on February 15, 2025 or upon any early redemption of the 3.976% Senior Notes.
	Aetna Notes
	ING Group guarantees various debentures of Voya Holdings that were assumed by Voya Holdings in connection with the Company's acquisition of Aetna's life insurance and related businesses in 2000 (the “Aetna Notes”). Concurrent with the completion of the Company's IPO, the Company entered into a shareholder agreement with ING Group that governs certain aspects of the Company's continuing relationship. The Company agreed in the shareholder agreement to reduce the aggregate outstanding principal amount of Aetna Notes to:
	•	no more than $400.0 as of December 31, 2015;
	•	no more than $300.0 as of December 31, 2016;
	•	no more than $200.0 as of December 31, 2017;
	•	no more than $100.0 as of December 31, 2018;
	•	and zero as of December 31, 2019.
	The reduction in principal amount of Aetna Notes can be accomplished, at the Company’s option, through redemptions, repurchases or other means, but will also be deemed to have been reduced to the extent the Company posts collateral with a third-party collateral agent, for the benefit of ING Group, which may consist of cash collateral; certain investment-grade debt instruments; a letter of credit (“LOC”) meeting certain requirements; or senior debt obligations of ING Group or a wholly owned subsidiary of ING Group.
	If the Company fails to reduce the outstanding principal amount of the Aetna Notes, the Company has agreed to pay a quarterly fee (ranging from 0.5% per quarter for 2016 to 1.25% per quarter for 2019) to ING Group based on the outstanding principal amount of Aetna Notes which exceed the limits set forth above.
	As of March 31, 2015 and December 31, 2014, the outstanding principal amount of the Aetna Notes guaranteed by ING Group was $506.1.
	Credit Facilities
	The Company maintains credit facilities used primarily for collateral required under affiliated reinsurance transactions and also for general corporate purposes. As of March 31, 2015, unsecured and uncommitted credit facilities totaled $1.7, unsecured and committed credit facilities totaled $7.8 billion and secured facilities totaled $205.0. Of the aggregate $8.0 billion capacity available, the Company utilized $4.9 billion in credit facilities outstanding as of March 31, 2015. Total fees associated with credit facilities were $25.3 and $29.3 for the three months ended March 31, 2015 and 2014, respectively.
	The following table outlines the Company's credit facilities, their dates of expiration, capacity and utilization as of March 31, 2015:
		Secured/ Unsecured	Committed/ Uncommitted		Expiration	Capacity		Utilization		Unused Commitment
	Obligor / Applicant
	Voya Financial, Inc.	Unsecured	Committed		2/14/18	$	3,000.00	$	887.2	$	2,112.80
	Security Life of Denver International Limited	Unsecured	Committed		1/24/18	175		157		18
	Voya Financial, Inc./ Langhorne I, LLC	Unsecured	Committed		1/15/19	500		—		500
	Voya Financial, Inc./ Security Life of Denver International Limited	Unsecured	Committed		11/9/15	750		750		—
	Security Life of Denver International Limited	Unsecured	Committed		10/29/21	1,125.00		1,125.00		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/29/23	250		250		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/31/25	475		475		—
	Voya Financial, Inc.	Secured	Committed		2/11/18	195		195		—
	Voya Financial, Inc.	Unsecured	Uncommitted		Various	1.7		1.7		—
	Voya Financial, Inc.	Secured	Uncommitted		Various	10		0.7		—
	Voya Financial, Inc. / Roaring River II, LLC	Unsecured	Committed		12/31/21	995		717		278
	Voya Financial, Inc./ Roaring River IV, LLC	Unsecured	Committed		12/31/28	565		295		270
	Total					$	8,041.70	$	4,853.60	$	3,178.80
	Secured facilities					$	205	$	195.7	$	—
	Unsecured and uncommitted					1.7		1.7		—
	Unsecured and committed					7,835.00		4,656.20		3,178.80
	Total					$	8,041.70	$	4,853.60	$	3,178.80
	Effective January 24, 2014, SLDI entered into a letter of credit facility agreement with a third-party bank to provide up to $150.0 of committed capacity until January 24, 2018 which supports reserves on an affiliated reinsurance agreement in connection with a portion of its deferred annuity business. Effective March 31, 2015, the amount of the facility was increased to $175.0 of committed capacity until January 24, 2018.
	On February 11, 2015, Voya Financial, Inc. entered into a $195.0 letter of credit facility agreement with a third-party bank which matures February 11, 2018 and includes an option to support the LOC outstanding either on a secured or unsecured basis. As of the inception of the facility, Voya Financial, Inc. collateralized the facility with $212.0 of unrestricted cash and short-term investments. The LOC will be used to provide collateral under the reinsurance agreements of Voya Financial, Inc. subsidiaries.
	Amended and Restated Credit Agreement
	On February 14, 2014, the Company revised the terms of its Revolving Credit Agreement by entering into the Amended and Restated Revolving Credit Agreement (the “Amended and Restated Credit Agreement”) with a syndicate of banks. The Amended and Restated Credit Agreement modifies the original agreement by extending the terms of the agreement to February 14, 2018 and reducing the total amount of LOCs that may be issued to $3.0 billion. As of March 31, 2015, there were no amounts outstanding as revolving credit borrowings. As of March 31, 2015, $887.2 of LOCs were outstanding under the Revolving Credit Agreement.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	Commitments
	Through the normal course of investment operations, the Company commits to either purchase or sell securities, mortgage loans, or money market instruments, at a specified future date and at a specified price or yield. The inability of counterparties to honor these commitments may result in either a higher or lower replacement cost. Also, there is likely to be a change in the value of the securities underlying the commitments.
	As of March 31, 2015, the Company had off-balance sheet commitments to purchase investments equal to their fair value of $1.2 billion, of which $289.4 relates to consolidated investment entities. As of December 31, 2014, the Company had off-balance sheet commitments to purchase investments equal to their fair value of $887.4, of which $297.0 relates to consolidated investment entities.
	Insurance Company Guaranty Fund Assessments
	Insurance companies are assessed on the costs of funding the insolvencies of other insurance companies by the various state guaranty associations, generally based on the amount of premiums companies collect in that state.
	The Company accrues the cost of future guaranty fund assessments based on estimates of the insurance company's insolvencies provided by the National Organization of Life and Health Insurance Guaranty Associations and the amount of premiums written in each state. The Company has estimated this undiscounted liability, which is included in Other liabilities on the Condensed Consolidated Balance Sheets, to be $14.3 and $14.5 as of March 31, 2015 and December 31, 2014, respectively. The Company has also recorded an asset in Other assets on the Condensed Consolidated Balance Sheets of $26.5 as of March 31, 2015 and December 31, 2014 for future credits to premium taxes. The Company estimates its liabilities for future assessments under state insurance guaranty association laws. The Company believes the reserves established are adequate for future assessments relating to insurance companies that are currently subject to insolvency proceedings.
	Restricted Assets
	The Company is required to maintain assets on deposit with various regulatory authorities to support its insurance operations. The Company may also post collateral in connection with certain securities lending, repurchase agreements, funding agreements, credit facilities and derivative transactions. The components of the fair value of the restricted assets were as follows as of the dates indicated:
		March 31, 2015		December 31, 2014
	Fixed maturity collateral pledged to FHLB	$	1,631.30	$	1,614.80
	FHLB restricted stock(1)	76.3		76.3
	Other fixed maturities-state deposits	246.3		241.7
	Securities pledged(2)	1,209.70		1,184.60
	Total restricted assets	$	3,163.60	$	3,117.40
	(1) Included in Other investments in the Condensed Consolidated Balance Sheets.
	(2) Includes the fair value of loaned securities of $548.8 and $545.9 as of March 31, 2015 and December 31, 2014, respectively, which are included in Securities pledged on the Condensed Consolidated Balance Sheets. In addition, as of March 31, 2015 and December 31, 2014, the Company delivered securities as collateral of $660.9 and $638.7, respectively, which are included in Securities pledged on the Condensed Consolidated Balance Sheets.
	Federal Home Loan Bank Funding Agreements
	The Company is a member of the FHLB of Des Moines and the FHLB of Topeka and is required to pledge collateral to back funding agreements issued to the FHLB. As of March 31, 2015 and December 31, 2014, the Company had $1.4 billion in non-putable funding agreements, which are included in Contract owner account balances on the Condensed Consolidated Balance Sheets. As of March 31, 2015 and December 31, 2014, assets with a market value of approximately $1.6 billion collateralized the FHLB funding agreements.
	Litigation and Regulatory Matters
	The Company is a defendant in a number of litigation matters arising from the conduct of its business, both in the ordinary course and otherwise. In some of these matters, claimants seek to recover very large or indeterminate amounts, including compensatory, punitive, treble and exemplary damages. Modern pleading practice in the U.S. permits considerable variation in the assertion of monetary damages and other relief. Claimants are not always required to specify the monetary damages they seek or they may be required only to state an amount sufficient to meet a court's jurisdictional requirements. Moreover, some jurisdictions allow claimants to allege monetary damages that far exceed any reasonable possible verdict. The variability in pleading requirements and past experience demonstrates that the monetary and other relief that may be requested in a lawsuit or claim often bears little relevance to the merits or potential value of a claim. Litigation against the Company includes a variety of claims including negligence, breach of contract, fraud, violation of regulation or statute, breach of fiduciary duty, negligent misrepresentation, failure to supervise, elder abuse and other torts.
	As with other financial services companies, the Company periodically receives informal and formal requests for information from various state and federal governmental agencies and self-regulatory organizations in connection with inquiries and investigations of the products and practices of the Company or the financial services industry. It is the practice of the Company to cooperate fully in these matters.
	The outcome of a litigation or regulatory matter and amount or range of potential loss is difficult to forecast and estimating potential losses requires significant management judgment. It is not possible to predict the ultimate outcome or to provide reasonably possible losses or ranges of losses for all pending regulatory matters and litigation. While it is possible that an adverse outcome in certain cases could have a material adverse effect upon the Company's financial position, based on information currently known, management believes that the outcome of pending litigation and regulatory matters is not likely to have such an effect. However, given the large and indeterminate amounts sought and the inherent unpredictability of such matters, it is possible that an adverse outcome in certain of the Company's litigation or regulatory matters could, from time to time, have a material adverse effect upon the Company's results of operations or cash flows in a particular quarterly or annual period.
	For some matters, the Company is able to estimate a possible range of loss. For such matters in which a loss is probable, an accrual has been made. This paragraph contains an estimate of reasonably possible losses above any amounts accrued. For matters where the Company, however, believes a loss is reasonably possible, but not probable, no accrual is required. For matters for which an accrual has been made, but there remains a reasonably possible range of loss in excess of the amounts accrued, the estimate reflects the reasonably possible range of loss in excess of the accrued amounts. For matters for which a reasonably possible (but not probable) range of loss exists, the estimate reflects the reasonably possible and unaccrued loss or range of loss. As of March 31, 2015, the Company estimates the aggregate range of reasonably possible losses, in excess of any amounts accrued for these matters as of such date, to be up to approximately $100.0.
	For other matters, the Company is currently not able to estimate the reasonably possible loss or range of loss. The Company is often unable to estimate the possible loss or range of loss until developments in such matters have provided sufficient information to support an assessment of the range of possible loss, such as quantification of a damage demand from plaintiffs, discovery from plaintiffs and other parties, investigation of factual allegations, rulings by a court on motions or appeals, analysis by experts and the progress of settlement discussions. On a quarterly and annual basis, the Company reviews relevant information with respect to litigation and regulatory contingencies and updates the Company's accruals, disclosures and reasonably possible losses or ranges of loss based on such reviews.
	Litigation includes Beeson, et al. v SMMS, Lion Connecticut Holdings, Inc. and ING NAIC (Marin County CA Superior Court, CIV-092545). Thirty-four Plaintiff households (husband/wife/trust) assert that SMMS, which was purchased in 2000 and sold in 2003, breached a duty to monitor the performance of investments that Plaintiffs made with independent financial advisors they met in conjunction with retirement planning seminars presented at Fireman’s Fund Insurance Company. SMMS recommended the advisors to Fireman’s Fund as seminar presenters. Some of the seminars were arranged by SMMS. As a result of the performance of their investments, Plaintiffs claim they incurred damages. Fireman’s Fund has asserted breach of contract and concealment claims against SMMS alleging that SMMS failed to fulfill its ongoing obligation to monitor the financial advisors and the investments they recommended to Plaintiffs and by failing to disclose that a primary purpose of the seminars was to develop business for the financial advisors. The Company denies all claims and vigorously defended this case at trial. During trial, the Court ruled that SMMS had duties to Plaintiffs and Fireman’s Fund that it has breached. On December 12, 2014, the Court issued a Statement of Decision in which it awarded damages in the aggregate of $36.8 to Plaintiffs and $7.5 to Fireman’s Fund. The Company objects to the Court’s decisions and the Statement of Decision on the grounds that they are inconsistent with California law and the evidence presented at trial. On January 7, 2015, the Court made final the award in favor of the Plaintiffs. The Company filed an appellate bond that stays execution of that judgment while a motion for new trial and appeal are pursued. On April 29, 2015, the Court issued a Proposed Statement of Decision denying Fireman’s Fund’s request for punitive damages.

Related_Party_Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions
	Parties are considered to be related if one party has the ability to control or exercise significant influence over the other party in making financial or operating decisions. Effective March 9, 2015, ING Group divested its remaining ownership interest in Voya Financial, Inc. As such, as of the date of this Quarterly Report, ING Group and its affiliates are no longer considered related parties of Voya Financial, Inc.
	The following table summarizes income and expense from transactions with related parties for the periods indicated:
		Three Months Ended March 31,
		2015						2014
		Income			Expense			Income			Expense
	NN Group	$	0.4		$	0.1		$	0.6		$	0.1
	ING Group	2.8			3			5.6			3.5
	ING Bank	18.2			5.7			(0.5		)	6.6
	Other	3.8			3.4			5.3			3.4
	Total	$	25.2		$	12.2		$	11		$	13.6
	Assets and liabilities from transactions with related parties as of December 31, 2014 are shown below:
			Assets			Liabilities
	NN Group		$	0.1		$	0.2
	ING Group		1.9			1.2
	ING Bank		12.9			4
	Other		2.2			1.4
	Total		$	17.1		$	6.8
	As of March 31, 2015, ING Group and its affiliates are no longer considered related parties of Voya Financial, Inc.
	The material agreements whereby the Company generates revenues and expenses with affiliated entities are as follows:
	Credit Facilities
	The Company is a borrower in credit facility agreements with ING Bank, in which ING Bank provides LOC capacity. While there were outstanding payables related to credit facility agreements with ING Bank, there were no outstanding payables related to credit facility agreements with related parties as of March 31, 2015. As of December 31, 2014, the Company had outstanding payables of $4.0 related to credit facility agreements with related parties. The Company incurred expenses of $5.7 and $3.7 related to credit facility agreements with related parties for the three months ended March 31, 2015 and 2014, respectively.
	Share Repurchase Program
	During the quarter ended March 31, 2015, the Company repurchased 13,599,274 shares of its common stock from ING Group for an aggregate purchase price of $600.0. The repurchases were each made pursuant to a Direct Share Repurchase Program with ING Group. The per share purchase price paid by the Company in each case was equal to the per share purchase price paid by the underwriters in registered public offerings of the Company’s common stock by ING Group which were completed concurrently with each of the repurchase transactions.
	See the Shareholders' Equity and Earnings per Common Share Note to these Condensed Consolidated Financial Statements for additional information regarding share repurchase transactions with ING Group.
	Derivatives
	The Company is party to several derivative contracts with NN Group N.V. (“NN Group”) and ING Bank and one or more of ING Bank's subsidiaries. The Company is exposed to various risks relating to its ongoing business operations, including but not limited to interest rate risk, foreign currency risk and equity market risk. To manage these risks, the Company uses various strategies, including derivatives contracts, certain of which are with related parties, such as interest rate swaps, equity options and currency forwards.
	There were no outstanding notional amounts related to derivative contracts with related parties as of March 31, 2015. As of December 31, 2014, the outstanding notional amount with ING Bank and NN Group was $464.1 (consisting of currency forwards of $178.0 and equity options of $286.1). As of December 31, 2014, the market value for these contracts was $11.5. For the three months ended March 31, 2015 and 2014, the Company recorded net realized capital gains (losses) of $18.2 and $(0.7), respectively, with ING Bank and NN Group.
	The Company has sold protection under certain credit default swap derivative contracts that were previously supported by a guarantee provided by NN Group. During 2013, the guarantee provided by NN Group on the sold protection was replaced with guarantees provided by Voya Financial, Inc. The Company purchased protection under one credit default swap derivative contract that is supported by the NN Group guarantee with the potential exposure limited to swap premiums to be paid. As of March 31, 2015 and December 31, 2014, the maximum potential future exposure to the Company on credit default swaps supported by the NN Group guarantee was $30.9 and $33.1, respectively. As of March 31, 2015, NN Group and its affiliates are no longer considered related parties of Voya Financial, Inc., however, this guarantee is still in effect.

Consolidated_Investment_Entiti

Consolidated Investment Entities	3 Months Ended
	Mar. 31, 2015
Consolidated Investment Entities [Abstract]
Consolidated Investment Entities	Consolidated Investment Entities
	The Company provides investment management services to, and has transactions with, various collateralized loan obligations, private equity funds, single strategy hedge funds, insurance entities, securitizations and other investment entities in the normal course of business. In certain instances, the Company serves as the investment manager, making day-to-day investment decisions concerning the assets of these entities. These entities are considered to be either VIEs or VOEs and the Company evaluates its involvement with each entity to determine whether consolidation is required.
	Certain investment entities are consolidated under VIE or VOE consolidation guidance. The Company consolidates certain entities under the VIE guidance when it is determined that the Company is the primary beneficiary of these entities. The Company consolidates certain entities under the VOE guidance when it acts as the controlling general partner and the limited partners have no substantive rights to impact ongoing governance and operating activities.
	With the exception of guarantees issued by the Company in relation to collateral support for reinsurance contracts, the Company has no right to the benefits from, nor does it bear the risks associated with these investments beyond the Company’s direct equity and debt investments in and management fees generated from these investment products. Such direct investments amounted to approximately $691.2 and $694.4 as of March 31, 2015 and December 31, 2014, respectively. If the Company were to liquidate, the assets held by consolidated investment entities would not be available to the general creditors of the Company as a result of the liquidation.
	Consolidated Investments
	Collateral Loan Obligations (“CLO”) Entities
	Certain subsidiaries of the Company structure and manage CLO entities created for the sole purpose of offering investors various maturity and risk characteristics by issuing multiple tranches of collateralized debt. The notes issued by the CLO entities are backed by diversified portfolios consisting primarily of senior secured floating rate leveraged loans.
	The Company provides collateral management services to the CLO entities. In return for providing management services, the Company earns investment management fees and contingent performance fees. The Company has invested in certain of the entities, generally taking an ownership position in the unrated junior subordinated tranches. The CLO entities are structured and managed similarly but have differing fee structures and initial capital investments made by the Company. The Company’s ownership interests and management and contingent performance fees were assessed to determine if the Company is the primary beneficiary of these entities.
	As of March 31, 2015 and December 31, 2014, the Company consolidated 17 and 16 CLOs, respectively.
	Private Equity Funds and Single Strategy Hedge Funds (Limited Partnerships)
	The Company invests in and manages various limited partnerships, including private equity funds and single strategy hedge funds. The Company, as a general partner or managing member of certain sponsored investment funds, is generally presumed to control the limited partnerships unless the limited partners have the substantive ability to remove the general partner without cause based upon a simple majority vote, or can otherwise dissolve the partnership, or have substantive participating rights over decision-making of the partnerships.
	As of March 31, 2015 and December 31, 2014, the Company consolidated 33 and 35 funds respectively, which were structured as partnerships.
	The following table summarizes the components of the consolidated investment entities, excluding collateral support for certain reinsurance contracts, as of the dates indicated:
		March 31, 2015			December 31, 2014
	Assets of Consolidated Investment Entities
	VIEs - CLO entities:
	Cash and cash equivalents	$	198.2		$	605.9
	Corporate loans, at fair value using the fair value option	7,040.10			6,793.10
	Other assets	70.4			67.3
	Total CLO entities	7,308.70			7,466.30
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	101.5			104.5
	Limited partnerships/corporations, at fair value	3,852.50			3,727.30
	Other assets	32			25.1
	Total investment funds	3,986.00			3,856.90
	Total assets of consolidated investment entities	$	11,294.70		$	11,323.20
	Liabilities of Consolidated Investment Entities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	6,408.90		$	6,838.10
	Other liabilities	809.8			561.1
	Total CLO entities	7,218.70			7,399.20
	VOEs - Private equity funds and single strategy hedge funds:
	Other liabilities	775.2			796.7
	Total investment funds	775.2			796.7
	Total liabilities of consolidated investment entities	$	7,993.90		$	8,195.90
	Fair Value Measurement
	Upon consolidation of CLO entities, the Company elected to apply the FVO for financial assets and financial liabilities held by these entities and continued to measure these assets (primarily corporate loans) and liabilities (debt obligations issued by CLO entities) at fair value in subsequent periods. The Company has elected the FVO to more closely align its accounting with the economics of its transactions and allows the Company to more effectively align changes in the fair value of CLO assets with a commensurate change in the fair value of CLO liabilities.
	Investments held by consolidated private equity funds and single strategy hedge funds are measured and reported at fair value in the Company's Condensed Consolidated Financial Statements. Changes in the fair value of consolidated investment entities are recorded as a separate line item within Income (loss) related to consolidated investment entities in the Company's Condensed Consolidated Statements of Operations.
	The methodology for measuring the fair value and fair value hierarchy classification of financial assets and liabilities of consolidated investment entities is consistent with the methodology and fair value hierarchy rules applied by the Company to its investment portfolio. Refer to the Fair Value Measurement section of the Business, Basis of Presentation and Significant Accounting Policies Note in the Consolidated Financial Statements in Part II, Item 8. of the Company's Annual Report on Form 10-K.
	As discussed in more detail below, the Company utilizes valuations obtained from third-party commercial pricing services, brokers and investment sponsors or third-party administrators that supply NAV (or its equivalent) per share used as a practical expedient. The valuations obtained from brokers and third-party commercial pricing services are non-binding. These valuations are reviewed on a monthly or quarterly basis (dependent on the type of fund or product). Procedures include, but are not limited to, a review of underlying fund investor reports, review of top and worst performing funds requiring further scrutiny, review of variance from prior periods and review of variance from benchmarks, where applicable. In addition, the Company considers both macro and fund specific events that may impact the latest NAV supplied and determines if further adjustments of value should be made. Such changes, if any, are subject to senior management review.
	When a price cannot be obtained from a commercial pricing service, independent broker quotes are solicited. Securities priced using independent broker quotes are classified as Level 3. Broker quotes and prices obtained from pricing services are reviewed and validated through an internal valuation committee price variance review, comparisons to internal pricing models, back testing to recent trades or monitoring of trading volumes.
	Cash and Cash Equivalents
	The carrying amounts for cash reflect the assets’ fair values. The fair value for cash equivalents is determined based on quoted market prices. These assets are classified as Level 1.
	VIEs - CLO Entities
	Corporate loans: Corporate loan investments, which comprise the majority of consolidated CLO portfolio collateral, are senior secured corporate loans maturing at various dates between 2015 and 2024, paying interest at LIBOR, EURIBOR or PRIME plus a spread of up to 9.5% and typically range in credit rating categories from AAA down to unrated. As of March 31, 2015 and December 31, 2014, the unpaid principal balance exceeded the fair value of the corporate loans by approximately $86.9 and $75.9, respectively. Less than 1% of the collateral assets were in default as of March 31, 2015 and December 31, 2014.
	The fair values for corporate loans are determined using independent commercial pricing services. Fair value measurement based on pricing services may be classified in Level 2 or Level 3 depending on the type, complexity, observability and liquidity of the asset being measured. The inputs used by independent commercial pricing services, such as benchmark yields and credit risk adjustments, are those that are derived principally from or corroborated by observable market data. Hence, the fair value measurement of corporate loans priced by independent pricing service providers is classified within Level 2 of the fair value hierarchy. In addition, there are assets held with CLO portfolios that represent senior level debt of other third party CLOs. These CLO investments are classified within Level 3 of the fair value hierarchy. See description of fair value process for CLO notes below.
	CLO notes: The CLO notes are backed by a diversified loan portfolio consisting primarily of senior secured floating rate leveraged loans. Repayment risk is segmented into tranches with credit ratings of these tranches reflecting both the credit quality of underlying collateral as well as how much protection a given tranche is afforded by tranches that are subordinate to it. The most subordinated tranche bears the first loss and receives the residual payments, if any. The interest rates are generally variable rates based on LIBOR plus a pre-defined spread, which varies from 0.22% for the more senior tranches to 7.00% for the more subordinated tranches. CLO notes mature at various dates between 2020 and 2026 and have a weighted average maturity of 9.1 years. The outstanding balance on the notes issued by consolidated CLOs exceeds their fair value by approximately $255.3 and $239.6 as of March 31, 2015 and December 31, 2014, respectively. The investors in this debt are not affiliated with the Company and have no recourse to the general credit of the Company for this debt.
	The fair values of the CLO notes including subordinated tranches in which the Company retains an ownership interest are obtained from a third-party commercial pricing service. The service combines the modeling of projected cash flow activity and the calibration of modeled results with transactions that have taken place in the specific debt issue as well as debt issues with similar characteristics. Several of the more significant inputs to the models including default rate, recovery rate, prepayment rate and discount margin, are determined primarily based on the nature of the investments in the underlying collateral pools and cannot be corroborated by observable market data. Accordingly, CLO notes are classified within Level 3 of the fair value hierarchy.
	The Company reviews the detailed prices including comparisons to prior periods for reasonableness. The Company utilizes a formal pricing challenge process to request a review of any price during which time the vendor examines its assumptions and relevant market inputs to determine if a price change is warranted.
	The following table summarizes significant unobservable inputs for Level 3 fair value measurements as of the dates indicated:
			Fair Value			Valuation Technique		Unobservable Inputs
	March 31, 2015
	Assets:
	CLO Investments		$	19		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
	Liabilities:
	CLO Notes		$	6,408.90		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
			Fair Value			Valuation Technique		Unobservable Inputs
	December 31, 2014
Assets:
CLO Investments		$	19.2		Discounted Cash Flow		Default Rate
							Recovery Rate
							Prepayment Rate
							Discount Margin
Liabilities:
CLO Notes		$	6,838.10		Discounted Cash Flow		Default Rate
							Recovery Rate
							Prepayment Rate
							Discount Margin
The following narrative indicates the sensitivity of inputs:
•	Default Rate: An increase (decrease) in the expected default rate would likely increase (decrease) the discount margin (increase risk premium) used to value the CLO investments and CLO notes and, as a result, would potentially decrease the value of the CLO investments and CLO notes.
•	Recovery Rate: A decrease (increase) in the expected recovery of defaulted assets would potentially decrease (increase) the valuation of CLO investments and CLO notes.
•	Prepayment Rate: A decrease (increase) in the expected rate of collateral prepayments would potentially decrease (increase) the valuation of CLO investments and CLO notes as the expected weighted average life (“WAL”) would increase.
•	Discount Margin (spread over LIBOR): An increase (decrease) in the discount margin used to value the CLO investments and CLO notes and would decrease (increase) the value of the CLO investments and CLO notes.
Effective January 23, 2015, a certain CLO established a revolving line of credit up to $665.0 bearing interest at LIBOR plus 175 basis points. The line of credit is used for funding the purchase of loans for the CLO portfolio prior to the CLO's closing date. As of March 31, 2015, $335.0 has been drawn upon the line of credit.
VOEs - Private Equity Funds and Single Strategy Hedge Funds
Limited partnerships, at fair value, primarily represent the Company's investments in private equity funds and single strategy hedge funds. At times, the limited partnerships make strategic co-investments directly into private equity companies, including, but not limited to, buyout, venture capital, distressed and mezzanine. The fair value for these investments is estimated based on the NAV from the latest financial statements of these funds, provided by the fund's investment manager or third-party administrator.
Private Equity Funds
As prescribed in ASC Topic 820, the unit of account for these investments is the interest in the investee fund. The Company owns an undivided interest in the fund portfolio and does not have the ability to dispose of individual assets and liabilities in the fund portfolio. Rather, the Company would be required to redeem or dispose of its entire interest in the investee fund. There is no current active market for interests in underlying private equity funds.
Valuation is generally based on the valuations provided by the fund's general partner or investment manager. The valuations typically reflect the fair value of the Company's capital account balance of each fund investment, including unrealized capital gains (losses), as reported in the financial statements of the respective investee fund as of the respective year end or the latest available date. In circumstances where fair values are not provided, the Company seeks to determine the fair value of fund investments based upon other information provided by the fund's general partner or investment manager or from other sources.
The fair value of securities received in-kind from fund investments is determined based on the restrictions around the securities.
•	Unrestricted, publicly traded securities are valued at the closing public market price on the reporting date;
•	Restricted, publicly traded securities may be valued at a discount from the closing public market price on the reporting date, depending on the circumstances; and
•	Privately held securities are valued by the directors/general partner of the investee fund, based on a variety of factors, including the price of recent transactions in the company's securities and the company's earnings, revenue and book value.
In the case of direct investments or co-investments in private equity companies, the Company initially recognizes investments at cost and subsequently adjusts investments to fair value. On a quarterly basis, the Company reviews the general partner or lead investor's valuation of the investee company, taking into account other available information, such as indications of a market value through subsequent issues of capital or transactions between third parties, performance of the investee company during the period and public, comparable companies' analysis, where appropriate.
Investments in these funds typically may not be fully redeemed at NAV within 90 days because of inherent restriction on near term redemptions. Therefore, these investments are classified within Level 3 of the fair value hierarchy.
As of March 31, 2015 and December 31, 2014, certain private equity funds maintained revolving lines of credit of $550.0, which renew annually and bear interest at LIBOR/EURIBOR plus 160 bps. The lines of credit are used for funding transactions before capital is called from investors, as well as for the financing of certain purchases. The private equity funds generally may borrow an amount that does not exceed the lesser of a certain percentage of the funds' undrawn commitments or a certain percentage of the funds' undrawn commitments plus 250% asset coverage from the invested assets of the funds as of March 31, 2015 and December 31, 2014. As of March 31, 2015 and December 31, 2014, outstanding borrowings amount to $261.4. The borrowings are reflected in Liabilities related to consolidated investment entities - other liabilities on the Condensed Consolidated Balance Sheets. The borrowings are carried at an amount equal to the unpaid principal balance.
Single Strategy Hedge Funds
As of March 31, 2015 and December 31, 2014, the Company acts as investment manager of a certain single strategy hedge fund (the “Fund”) that seeks to achieve its investment objective by investing in many forms of U.S. residential mortgage-backed securities, government securities and related derivative instruments, including without limitation, U.S. Treasury debt, government sponsored enterprise (“Agency”) backed securities and fixed or adjustable rate collateralized mortgage obligations and Real Estate Mortgage Investment Conduits (“REMICs”). The Fund may also enter into repurchase and reverse repurchase agreements.
Investments in this Fund are priced in accordance with the Fund's pricing hierarchy process in which prices are obtained from a primary vendor and, if that vendor is unable to provide the price, the next vendor in the hierarchy is contacted until a price is obtained or it is determined that a price cannot be obtained from a commercial pricing service. When a price cannot be obtained from a commercial pricing service, independent broker quotes are solicited. Securities that rely upon a vendor supplied price are classified as Level 2. Securities priced using independent broker quotes are classified as Level 3.
As of March 31, 2015 and December 31, 2014, this Fund sold securities under an agreement to repurchase at a specified future date. Securities sold under an agreement to repurchase are not de-recognized on the Condensed Consolidated Balance Sheets, as the single strategy hedge fund retains substantially all the risks and rewards of ownership. The obligation to repay the corresponding cash received is recognized in the Condensed Consolidated Balance Sheets in Liabilities related to consolidated investment entities - Other liabilities. As of March 31, 2015 and December 31, 2014, outstanding financings amount to $401.3 and $417.1, respectively.
The following table summarizes the fair value hierarchy levels of consolidated investment entities as of March 31, 2015:
	Level 1			Level 2				Level 3		Total
Assets
VIEs - CLO entities:
Cash and cash equivalents	$	198.2		$	—			$	—	$	198.2
Corporate loans, at fair value using the fair value option	—			7,021.10				19		7,040.10
VOEs - Private equity funds and single strategy hedge funds:
Cash and cash equivalents	101.5			—				—		101.5
Limited partnerships/corporations, at fair value	—			1,161.30				2,691.20		3,852.50
Total assets, at fair value	$	299.7		$	8,182.40			$	2,710.20	$	11,192.30
Liabilities
VIEs - CLO entities:
CLO notes, at fair value using the fair value option	$	—		$	—			$	6,408.90	$	6,408.90
Total liabilities, at fair value	$	—		$	—			$	6,408.90	$	6,408.90
The following table summarizes the fair value hierarchy levels of consolidated investment entities as of December 31, 2014:
	Level 1			Level 2				Level 3		Total
Assets
VIEs - CLO entities:
Cash and cash equivalents	$	605.9		$	—			$	—	$	605.9
Corporate loans, at fair value using the fair value option	—			6,773.90				19.2		6,793.10
VOEs - Private equity funds and single strategy hedge funds:
Cash and cash equivalents	104.5			—				—		104.5
Limited partnerships/corporations, at fair value	—			1,035.60				2,691.70		3,727.30
Total assets, at fair value	$	710.4		$	7,809.50			$	2,710.90	$	11,230.80
Liabilities
VIEs - CLO entities:
CLO notes, at fair value using the fair value option	$	—		$	—			$	6,838.10	$	6,838.10
Total liabilities, at fair value	$	—		$	—			$	6,838.10	$	6,838.10
Level 3 assets primarily include investments in private equity funds and single strategy hedge funds held by the consolidated VOEs, while the Level 3 liabilities consist of CLO notes. Transfers of investments out of Level 3 and into Level 2 or Level 1, if any, are recorded as of the beginning of the period in which the transfer occurred. For the three months ended March 31, 2015 there were no transfers in or out of Level 3, or transfers between Level 1 and Level 2.
For the three months ended March 31, 2014, investments held in single strategy hedge funds were transferred from Level 2 to Level 3 based upon the use of broker quotes to price certain underlying securities held by the single strategy hedge fund. There were no transfers between Level 1 and Level 2.
The reconciliation of the beginning and ending fair value measurements for Level 3 assets and liabilities using significant unobservable inputs for the three months ended March 31, 2015 is presented in the table below:
	Fair Value			Gains (Losses)				Purchases		Sales			Transfer into Level 3		Transfer out of Level 3		Fair Value as of March 31
	as of January 1			Included in the Condensed Consolidated
				Statement of Operations
Assets
VIEs - CLO entities:
Corporate loans, at fair value using the fair value option	$	19.2		$	(0.1	)		$	—	$	(0.1	)	$	—	$	—	$	19
VOEs - Private equity funds and single strategy hedge funds:
Limited partnerships/corporations, at fair value	2,691.70			(0.5		)		—		—			—		—		2,691.20
Total assets, at fair value	$	2,710.90		$	(0.6	)		$	—	$	(0.1	)	$	—	$	—	$	2,710.20
Liabilities
VIEs - CLO entities:
CLO notes, at fair value using the fair value option	$	6,838.10		$	(28.2	)		$	—	$	(401.0	)	$	—	$	—	$	6,408.90
Total liabilities, at fair value	$	6,838.10		$	(28.2	)		$	—	$	(401.0	)	$	—	$	—	$	6,408.90
The reconciliation of the beginning and ending fair value measurements for Level 3 assets and liabilities using significant unobservable inputs for the three months ended March 31, 2014 is presented in the table below:
	Fair Value			Gains (Losses)				Purchases		Sales			Transfer into Level 3		Transfer out of Level 3		Fair Value as of March 31
	as of January 1			Included in the Condensed Consolidated
				Statement of Operations
Assets
VIEs - CLO entities:
Corporate loans, at fair value using the fair value option	$	25.5		$	0.2			$	—	$	(0.7	)	$	—	$	—	$	25
VOEs - Private equity funds and single strategy hedge funds:
Limited partnerships/corporations, at fair value	2,734.10			(0.6		)		5.1		—			13.9		—		2,752.50
Total assets, at fair value	$	2,759.60		$	(0.4	)		$	5.1	$	(0.7	)	$	13.9	$	—	$	2,777.50
Liabilities
VIEs - CLO entities:
CLO notes, at fair value using the fair value option	$	5,161.60		$	1.1			$	409.4	$	(46.6	)	$	—	$	—	$	5,525.50
Total liabilities, at fair value	$	5,161.60		$	1.1			$	409.4	$	(46.6	)	$	—	$	—	$	5,525.50
Deconsolidation of Certain Investment Entities
During the three months ended March 31, 2015 and 2014, the Company did not deconsolidate any investment entities.
Nonconsolidated VIEs
CLO Entities
In addition to the consolidated CLO entities, the Company also holds variable interest in certain CLO entities that are not consolidated as it has been determined that the Company is not the primary beneficiary. With these CLO entities, the Company serves as the investment manager and receives investment management fees and contingent performance fees. Generally, the Company does not hold any interest in the nonconsolidated CLO entities but if it does, such ownership has been deemed to be insignificant. The Company has not provided, and is not obligated to provide, any financial or other support to these entities.
The Company reviews its assumptions on a periodic basis to determine if conditions have changed such that the projection of these contingent fees becomes significant enough to reconsider the Company's consolidation status as variable interest holder. As of March 31, 2015 and December 31, 2014, the Company did not hold any ownership interests in these unconsolidated CLOs.
The following table presents the carrying amounts of total assets and liabilities of the CLOs in which the Company concluded that it holds a variable interest, but is not the primary beneficiary as of the dates indicated. The Company determines its maximum exposure to loss to be: (i) the amount invested in the debt or equity of the CLO and (ii) other commitments and guarantees to the CLO.
	March 31, 2015			December 31, 2014
Carrying amount	$	—		$	—
Maximum exposure to loss	—			—
Assets of nonconsolidated investment entities	892.3			932.8
Liabilities of nonconsolidated investment entities	928.8			983.7
Investment Funds
The Company manages or holds investments in certain private equity funds and single strategy hedge funds. With these entities, the Company serves as the investment manager and is entitled to receive investment management fees and contingent performance fees that are generally expected to be insignificant. Although the Company has the power to direct the activities that significantly impact the economic performance of the funds, it does not hold a significant variable interest in any of these funds and, as such, does not have the obligation to absorb losses or the right to receive benefits from the entity that could potentially be significant to the entity. Accordingly, the Company is not considered the primary beneficiary and did not consolidate any of these investment funds.
In addition, the Company does not consolidate the funds in which its involvement takes a form of a limited partner interest and is restricted to a role of a passive investor, as a limited partner's interest does not provide the Company with any substantive kick-out or participating rights, which would overcome the presumption of control by the general partner.
Securitizations
The Company invests in various tranches of securitization entities, including RMBS, CMBS and ABS. Through its investments, the Company is not obligated to provide any financial or other support to these entities. Each of the RMBS, CMBS and ABS entities are thinly capitalized by design and considered VIEs. The Company's involvement with these entities is limited to that of a passive investor. The Company has no unilateral right to appoint or remove the servicer, special servicer or investment manager, which are generally viewed to have the power to direct the activities that most significantly impact the securitization entities' economic performance, in any of these entities, nor does the Company function in any of these roles. The Company, through its investments or other arrangements, does not have the obligation to absorb losses or the right to receive benefits from the entity that could potentially be significant to the entity. Therefore, the Company is not the primary beneficiary and will not consolidate any of the RMBS, CMBS and ABS entities in which it holds investments. These investments are accounted for as investments available-for-sale as described in the Fair Value Measurements (excluding Consolidated Investment Entities) Note to these Condensed Consolidated Financial Statements and unrealized capital gains (losses) on these securities are recorded directly in AOCI, except for certain RMBS which are accounted for under the FVO whose change in fair value is reflected in Other net realized gains (losses) in the Condensed Consolidated Statements of Operations. The Company’s maximum exposure to loss on these structured investments is limited to the amount of its investment. Refer to the Investments (excluding Consolidated Investment Entities) Note to these Condensed Consolidated Financial Statements for details regarding the carrying amounts and classifications of these assets.

Segments

Segments	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segments	Segments
	The Company provides its principal products and services in three ongoing businesses and reports results through five ongoing segments as follows:
	Business		Segment
	Retirement Solutions		Retirement
			Annuities
	Investment Management		Investment Management
	Insurance Solutions		Individual Life
			Employee Benefits
	Effective April 20, 2015, the Company will provide its principal products and services in two ongoing businesses - Retirement and Investment Solutions; and Insurance Solutions. This change does not affect the Company's five ongoing operating segments.
	The Company also has a Corporate segment, which includes the financial data not directly related to the businesses, and Closed Block segments, which are comprised of non-strategic products that are in run-off and no longer being actively marketed and sold.
	These segments reflect the manner by which the Company’s chief operating decision maker views and manages the business. The following is a brief description of these segments, as well as Corporate and Closed Block segments.
	Retirement Solutions
	The Retirement Solutions business provides its products and services through two segments: Retirement and Annuities. The Retirement segment provides tax-deferred, employer-sponsored retirement savings plans and administrative services to corporate, education, healthcare, other non-profit and government entities, as well as individual retirement accounts ("IRAs"), other retail financial products and comprehensive financial services to individual customers. The Annuities segment primarily provides fixed, indexed and structured annuities, tax-qualified mutual fund custodial products and payout annuities for pre-retirement wealth accumulation and postretirement income management sold through multiple channels.
	Investment Management
	The Investment Management business provides investment products and retirement solutions across a broad range of geographies, market sectors, investment styles and capitalization spectrums. Products and services are offered to institutional clients, including public, corporate and union retirement plans, endowments and foundations and insurance companies, as well as individual investors and general accounts of the Company's insurance subsidiaries and are distributed through the Company's direct sales force, consultant channel and intermediary partners (such as banks, broker-dealers and independent financial advisers).
	Insurance Solutions
	The Insurance Solutions business provides its products through two segments: Individual Life and Employee Benefits. The Individual Life segment provides wealth protection and transfer opportunities through universal, variable and term products, distributed using various channels to meet the needs of a broad range of customers from the middle market through affluent market segments. The Employee Benefits segment provides stop loss, group life, voluntary employee-paid and disability products to mid-sized and large businesses.
	Corporate
	Corporate includes corporate operations and corporate level assets and financial obligations. The Corporate segment includes investment income on assets backing surplus in excess of amounts held at the segment level, financing and interest expenses, other items not allocated to segments, such as certain expenses and liabilities of employee benefit plans and intercompany eliminations.
	Closed Blocks
	Closed Blocks consists of three separate reporting segments that include run-off and legacy business lines that are no longer being actively marketed or sold. The Closed Block Variable Annuity ("CBVA") segment consists of variable annuity contracts that were designed to offer long-term savings products in which individual contract owners made deposits that are maintained in separate accounts. These products included options for policyholders to purchase living benefit riders. In 2009, the Company separated its CBVA segment from other operations, placing it in run-off, and made a strategic decision to stop actively writing new retail variable annuity products with substantial guarantee features (the last policies were issued in early 2010 and the block shifted to run-off). The Closed Block Institutional Spread Products segment historically issued GICs and funding agreements and invested amounts raised to earn a spread. While the business in the Closed Block Institutional Spread Products segment is being managed in active run-off, the Company continues to issue liabilities from time to time to replace liabilities that are maturing. The Closed Block Other segment consists primarily of retained and run-off activity related to divestment, including the Company's group reinsurance and individual reinsurance businesses.
	Measurement
	Operating earnings before income taxes is an internal measure used by management to evaluate segment performance. The Company uses the same accounting policies and procedures to measure segment operating earnings before income taxes as it does for consolidated Net income (loss). Operating earnings before income taxes does not replace Net income (loss) as the U.S. GAAP measure of the Company’s consolidated results of operations. However, the Company believes that the definitions of operating earnings before income taxes provide users with a more valuable measure of its business and segment performances and enhance the understanding of the Company’s performance by highlighting performance drivers. Each segment’s operating earnings before income taxes is calculated by adjusting Income (loss) before income taxes for the following items:
	•	Net investment gains (losses), net of related amortization of DAC, VOBA, sales inducements and unearned revenue. Net investment gains (losses) include gains (losses) on the sale of securities, impairments, changes in the fair value of investments using the FVO unrelated to the implied loan-backed security income recognition for certain mortgage-backed obligations and changes in the fair value of derivative instruments, excluding realized gains (losses) associated with swap settlements and accrued interest;
	•	Net guaranteed benefit hedging gains (losses), which include changes in the fair value of derivatives related to guaranteed benefits, net of related reserve increases (decreases) and net of related amortization of DAC, VOBA and sales inducements, less the estimated cost of these benefits. The estimated cost, which is reflected in operating results, reflects the expected cost of these benefits if markets perform in line with the Company's long-term expectations and includes the cost of hedging. Other derivative and reserve changes related to guaranteed benefits are excluded from operating results, including the impacts related to changes in the Company's nonperformance spread;
	•	Income (loss) related to businesses exited through reinsurance or divestment (including net investment gains (losses) on securities sold and expenses directly related to these transactions);
	•	Income (loss) attributable to noncontrolling interest;
	•	Income (loss) related to early extinguishment of debt;
	•	Impairment of goodwill, value of management contract rights and value of customer relationships acquired;
	•	Immediate recognition of net actuarial gains (losses) related to the Company’s pension and other postretirement benefit obligations and gains (losses) from plan amendments and curtailments; and
	•	Other items, including restructuring expenses (severance, lease write-offs, etc.), certain third-party expenses and deal incentives related to the divestment of the Company by ING Group, and expenses associated with the rebranding of Voya Financial, Inc. from ING U.S., Inc.
	Operating earnings before income taxes also does not reflect the results of operations of the Company's CBVA segment, since this segment is managed to focus on protecting regulatory and rating agency capital rather than achieving operating metrics. When the Company presents the adjustments to Income (loss) before income taxes on a consolidated basis, each adjustment excludes the relative portions attributable to the Company's CBVA segment.
	The summary below reconciles operating earnings before income taxes for the segments to Income (loss) before income taxes for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Retirement Solutions:
	Retirement	$	124.5		$	114.9
	Annuities	68.6			54.8
	Investment Management	46.9			49.8
	Insurance Solutions:
	Individual Life	43.4			31.1
	Employee Benefits	40.6			16.9
	Total Ongoing Business	324			267.5
	Corporate	(48.2		)	(37.3		)
	Closed Blocks:
	Closed Block Institutional Spread Products	5.1			5.4
	Closed Block Other	8.7			(4.5		)
	Closed Blocks	13.8			0.9
	Total operating earnings before income taxes	289.6			231.1
	Adjustments:
	Closed Block Variable Annuity	(34.4		)	20.2
	Net investment gains (losses) and related charges and adjustments	50.4			57.6
	Net guaranteed benefit hedging gains (losses) and related charges and adjustments	(47.2		)	6.4
	Loss related to businesses exited through reinsurance or divestment	(15.4		)	(10.5		)
	Income (loss) attributable to noncontrolling interest	26.1			13.5
	Other adjustments to operating earnings	(12.8		)	(16.0		)
	Income (loss) before income taxes	$	256.3		$	302.3
	Operating revenues is a measure of the Company's segment revenues. Each segment's Operating revenues are calculated by adjusting Total revenues to exclude the following items:
	•	Net realized investment gains (losses) and related charges and adjustments include gains (losses) on the sale of securities, impairments, changes in the fair value of investments using the FVO unrelated to the implied loan-backed security income recognition for certain mortgage-backed obligations and changes in the fair value of derivative instruments, excluding realized gains (losses) associated with swap settlements and accrued interest. These are net of related amortization of unearned revenue;
	•	Gain (loss) on change in fair value of derivatives related to guaranteed benefits include changes in the fair value of derivatives related to guaranteed benefits, less the estimated cost of these benefits. The estimated cost, which is reflected in operating results, reflects the expected cost of these benefits if markets perform in line with the Company's long-term expectations and includes the cost of hedging. Other derivative and reserve changes related to guaranteed benefits are excluded from operating revenues, including the impacts related to changes in the Company's nonperformance spread;
	•	Revenues related to businesses exited through reinsurance or divestment (including net investment gains (losses) on securities sold and expenses directly related to these transactions);
	•	Revenues attributable to noncontrolling interest; and
	•	Other adjustments to Operating revenues primarily reflect fee income earned by the Company's broker-dealers for sales of non-proprietary products, which are reflected net of commission expense in the Company's segments’ operating revenues, as well as other items where the income is passed on to third parties.
	Operating revenues also do not reflect the revenues of the Company's CBVA segment, since this segment is managed to focus on protecting regulatory and rating agency capital rather than achieving operating metrics. When the Company presents the adjustments to total revenues on a consolidated basis, each adjustment excludes the relative portions attributable to the Company's CBVA segment.
The summary below reconciles Operating revenues for the segments to Total revenues for the periods indicated:
	Three Months Ended March 31,
	2015			2014
Retirement Solutions:
Retirement	$	600.5		$	598.5
Annuities	315.6			354.4
Investment Management	163.1			160.5
Insurance Solutions:
Individual Life	668.8			692.2
Employee Benefits	370.9			338.9
Total Ongoing Business	2,118.90			2,144.50
Corporate	20.4			25.3
Closed Blocks:
Closed Block Institutional Spread Products	14.9			17.6
Closed Block Other	7			8
Closed Blocks	21.9			25.6
Total operating revenues	2,161.20			2,195.40
Adjustments:
Closed Block Variable Annuity	259.4			284.6
Net realized investment gains (losses) and related charges and adjustments	53.1			49.6
Gain (loss) on change in fair value of derivatives related to guaranteed benefits	(53.6		)	(23.9		)
Revenues related to businesses exited through reinsurance or divestment	40.6			19
Revenues attributable to noncontrolling interest	89.8			60.8
Other adjustments to operating revenues	75.5			85.4
Total revenues	$	2,626.00		$	2,670.90
Other Segment Information
The Investment Management segment revenues include the following intersegment revenues, primarily consisting of asset-based management and administration fees for the periods indicated:
	Three Months Ended March 31,
	2015			2014
Investment management intersegment revenues	$	38.6		$	39.3
The summary below presents Total assets for the Company’s segments as of the dates indicated:
	March 31, 2015			December 31, 2014
Retirement Solutions:
Retirement	$	98,429.10		$	96,433.90
Annuities	25,956.30			25,901.50
Investment Management	424.9			492.6
Insurance Solutions:
Individual Life	26,977.30			26,877.10
Employee Benefits	2,623.10			2,602.40
Total Ongoing Business	154,410.70			152,307.50
Corporate	5,826.00			5,910.00
Closed Blocks:
Closed Block Variable Annuity	48,871.50			48,706.90
Closed Block Institutional Spread Products	1,904.10			1,901.90
Closed Block Other	7,449.00			7,496.30
Closed Blocks	58,224.60			58,105.10
Total assets of segments	218,461.30			216,322.60
Noncontrolling interest	10,586.90			10,628.80
Total assets	$	229,048.20		$	226,951.40

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	3 Months Ended
	Mar. 31, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Financial Information	Condensed Consolidating Financial Information
	The accompanying condensed consolidating financial information has been prepared and presented pursuant to SEC Regulation S-X, Rule 3-10, “Financial Statements of Guarantors and Issuers of Guaranteed Securities Registered or Being Registered” (“Rule 3-10”). The condensed consolidating financial information presents the financial position of Voya Financial, Inc. (“Parent Issuer”), Voya Holdings (“Subsidiary Guarantor”) and all other subsidiaries (“Non-Guarantor Subsidiaries”) of the Company as of March 31, 2015 and December 31, 2014, and their results of operations, comprehensive income and cash flows for the three months ended March 31, 2015 and 2014.
	The 5.5% senior notes due 2022, the 2.9% senior notes due 2018 and the 5.7% senior notes due 2043 (collectively, the “Senior Notes”) and the 5.65% fixed-to-floating rate junior subordinated notes due 2053 (the “Junior Subordinated Notes”) are fully and unconditionally guaranteed by Voya Holdings, a 100% owned subsidiary of the Company. No other subsidiary of Voya Financial, Inc. guarantees the Senior Notes or the Junior Subordinated Notes. Rule 3-10(h) provides that a guarantee is full and unconditional if, when the issuer of a guaranteed security has failed to make a scheduled payment, the guarantor is obligated to make the scheduled payment immediately and, if it does not, any holder of the guaranteed security may immediately bring suit directly against the guarantor for payment of amounts due and payable. In the event that Voya Holdings does not fulfill the guaranteed obligations, any holder of the Senior Notes or the Junior Subordinated Notes may immediately bring a claim against Voya Holdings for amounts due and payable. See the Insurance Subsidiaries Note to these Condensed Consolidated Financial Statements for information on any significant restrictions on the ability of the Parent Issuer or Subsidiary Guarantor to obtain funds from its subsidiaries by dividend or return of capital.
	The following condensed consolidating financial information is presented in conformance with the components of the Condensed Consolidated Financial Statements. Investments in subsidiaries are accounted for using the equity method for purposes of illustrating the consolidating presentation. Equity in the subsidiaries is therefore reflected in the Parent Issuer's and Subsidiary Guarantor's Investment in subsidiaries and Equity in earnings of subsidiaries. Non-Guarantor Subsidiaries represent all other subsidiaries on a combined basis. The consolidating adjustments presented herein eliminate investments in subsidiaries and intercompany balances and transactions.
	Condensed Consolidating Balance Sheet
	March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Assets:
	Investments:
	Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	71,432.70		$	(15.3	)	$	71,417.40
	Fixed maturities, at fair value using the fair value option	—			—			3,675.30			—			3,675.30
	Equity securities, available-for-sale, at fair value	91.2			—			192.4			—			283.6
	Short-term investments	212			—			1,403.50			—			1,615.50
	Mortgage loans on real estate, net of valuation allowance	—			—			10,194.50			—			10,194.50
	Policy loans	—			—			2,074.10			—			2,074.10
	Limited partnerships/corporations	—			—			375.5			—			375.5
	Derivatives	71.4			—			2,235.20			(179.6		)	2,127.00
	Investments in subsidiaries	18,507.40			13,710.00			—			(32,217.4		)	—
	Other investments	—			1.3			95.7			—			97
	Securities pledged	—			—			1,209.70			—			1,209.70
	Total investments	18,882.00			13,711.30			92,888.60			(32,412.3		)	93,069.60
	Cash and cash equivalents	249.6			1.7			1,624.10			—			1,875.40
	Short-term investments under securities loan agreements, including collateral delivered	30.7			—			983.1			(20.1		)	993.7
	Accrued investment income	—			—			927.2			—			927.2
	Reinsurance recoverable	—			—			7,048.80			—			7,048.80
	Deferred policy acquisition costs and Value of business acquired	—			—			4,244.30			—			4,244.30
	Sales inducements to contract holders	—			—			239.9			—			239.9
	Deferred income taxes	409.2			48.7			577.5			—			1,035.40
	Goodwill and other intangible assets	—			—			276.3			—			276.3
	Loans to subsidiaries and affiliates	183.4			0.1			535			(718.5		)	—
	Due from subsidiaries and affiliates	16.5			0.5			7			(24.0		)	—
	Other assets	54.8			—			949.6			(0.9		)	1,003.50
	Assets related to consolidated investment entities:
	Limited partnerships/corporations, at fair value	—			—			3,852.50			—			3,852.50
	Cash and cash equivalents	—			—			299.7			—			299.7
	Corporate loans, at fair value using the fair value option	—			—			7,040.10			—			7,040.10
	Other assets	—			—			102.4			—			102.4
	Assets held in separate accounts	—			—			107,039.40			—			107,039.40
	Total assets	$	19,826.20		$	13,762.30		$	228,635.50		$	(33,175.8	)	$	229,048.20
	Condensed Consolidating Balance Sheet
	March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Liabilities and Shareholders' Equity:
	Future policy benefits	$	—		$	—		$	16,037.60		$	—		$	16,037.60
	Contract owner account balances	—			—			69,692.60			—			69,692.60
	Payables under securities loan agreement, including collateral held	—			—			1,971.90			—			1,971.90
	Short-term debt with affiliates	534.3			148.4			34.9			(717.6		)	—
	Long-term debt	2,997.20			515.4			18.7			(15.3		)	3,516.00
	Funds held under reinsurance agreements	—			—			1,162.20			—			1,162.20
	Derivatives	108.2			—			1,045.70			(179.6		)	974.3
	Pension and other post-employment provisions	—			—			808.1			—			808.1
	Current income taxes	3.3			(1.1		)	1.9			—			4.1
	Due to subsidiaries and affiliates	5.8			1.2			2			(9.0		)	—
	Other liabilities	75.4			6			1,136.90			(36.9		)	1,181.40
	Liabilities related to consolidated investment entities:
	Collateralized loan obligations notes, at fair value using the fair value option	—			—			6,408.90			—			6,408.90
	Other liabilities	—			—			1,585.00			—			1,585.00
	Liabilities related to separate accounts	—			—			107,039.40			—			107,039.40
	Total liabilities	3,724.20			669.9			206,945.80			(958.4		)	210,381.50
	Shareholders' equity:
	Total Voya Financial, Inc. shareholders' equity	16,102.00			13,092.40			19,125.00			(32,217.4		)	16,102.00
	Noncontrolling interest	—			—			2,564.70			—			2,564.70
	Total shareholders' equity	16,102.00			13,092.40			21,689.70			(32,217.4		)	18,666.70
	Total liabilities and shareholders' equity	$	19,826.20		$	13,762.30		$	228,635.50		$	(33,175.8	)	$	229,048.20
Condensed Consolidating Balance Sheet
December 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Assets:
Investments:
Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	69,925.60		$	(15.3	)	$	69,910.30
Fixed maturities, at fair value using the fair value option	—			—			3,564.50			—			3,564.50
Equity securities, available-for-sale, at fair value	83.4			—			188.4			—			271.8
Short-term investments	—			—			1,711.40			—			1,711.40
Mortgage loans on real estate, net of valuation allowance	—			—			9,794.10			—			9,794.10
Policy loans	—			—			2,104.00			—			2,104.00
Limited partnerships/corporations	—			—			363.2			—			363.2
Derivatives	69			—			1,923.10			(172.5		)	1,819.60
Investments in subsidiaries	17,879.70			13,312.00			—			(31,191.7		)	—
Other investments	—			14.4			95.9			—			110.3
Securities pledged	—			—			1,184.60			—			1,184.60
Total investments	18,032.10			13,326.40			90,854.80			(31,379.5		)	90,833.80
Cash and cash equivalents	682.1			1.6			1,847.20			—			2,530.90
Short-term investments under securities loan agreements, including collateral delivered	30.7			—			816.4			(20.1		)	827
Accrued investment income	—			—			891.7			—			891.7
Reinsurance recoverable	—			—			7,116.90			—			7,116.90
Deferred policy acquisition costs and Value of business acquired	—			—			4,570.90			—			4,570.90
Sales inducements to contract holders	—			—			253.6			—			253.6
Deferred income taxes	398.2			49.2			873.2			—			1,320.60
Goodwill and other intangible assets	—			—			284.4			—			284.4
Loans to subsidiaries and affiliates	169			—			0.3			(169.3		)	—
Due from subsidiaries and affiliates	13			0.1			6			(19.1		)	—
Other assets	49.3			—			942.2			(0.9		)	990.6
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	—			—			3,727.30			—			3,727.30
Cash and cash equivalents	—			—			710.4			—			710.4
Corporate loans, at fair value using the fair value option	—			—			6,793.10			—			6,793.10
Other assets	—			—			92.4			—			92.4
Assets held in separate accounts	—			—			106,007.80			—			106,007.80
Total assets	$	19,374.40		$	13,377.30		$	225,788.60		$	(31,588.9	)	$	226,951.40
Condensed Consolidating Balance Sheet
December 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Liabilities and Shareholders' Equity:
Future policy benefits	$	—		$	—		$	15,691.20		$	—		$	15,691.20
Contract owner account balances	—			—			69,319.50			—			69,319.50
Payables under securities loan agreement, including collateral held	—			—			1,445.00			—			1,445.00
Short-term debt with affiliates	—			149.7			19.3			(169.0		)	—
Long-term debt	2,997.10			515.3			18.6			(15.3		)	3,515.70
Funds held under reinsurance agreements	—			—			1,159.60			—			1,159.60
Derivatives	103.5			—			918.3			(172.5		)	849.3
Pension and other post-employment provisions	—			—			826.2			—			826.2
Current income taxes	84.8			(5.7		)	5.7			—			84.8
Due to subsidiaries and affiliates	4.8			1.2			(1.9		)	(4.1		)	—
Other liabilities	76.3			14.9			1,278.30			(36.3		)	1,333.20
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	—			—			6,838.10			—			6,838.10
Other liabilities	—			—			1,357.80			—			1,357.80
Liabilities related to separate accounts	—			—			106,007.80			—			106,007.80
Total liabilities	3,266.50			675.4			204,883.50			(397.2		)	208,428.20
Shareholders' equity:
Total Voya Financial, Inc. shareholders' equity	16,107.90			12,701.90			18,489.80			(31,191.7		)	16,107.90
Noncontrolling interest	—			—			2,415.30			—			2,415.30
Total shareholders' equity	16,107.90			12,701.90			20,905.10			(31,191.7		)	18,523.20
Total liabilities and shareholders' equity	$	19,374.40		$	13,377.30		$	225,788.60		$	(31,588.9	)	$	226,951.40
Condensed Consolidating Statement of Operations
For the Three Months Ended March 31, 2015
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Revenues:
Net investment income	$	3.4		$	0.1		$	1,173.00		$	(1.9	)	$	1,174.60
Fee income	—			—			899.8			—			899.8
Premiums	—			—			608.8			—			608.8
Net realized gains (losses):
Total other-than-temporary impairments	—			—			(2.6		)	—			(2.6		)
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	—			—			2.3			—			2.3
Net other-than-temporary impairments recognized in earnings	—			—			(4.9		)	—			(4.9		)
Other net realized capital gains (losses)	(1.0		)	0.2			(258.8		)	—			(259.6		)
Total net realized capital gains (losses)	(1.0		)	0.2			(263.7		)	—			(264.5		)
Other revenue	0.9			—			102.7			(0.9		)	102.7
Income (loss) related to consolidated investment entities:
Net investment income	—			—			96.9			—			96.9
Changes in fair value related to collateralized loan obligations	—			—			7.7			—			7.7
Total revenues	3.3			0.3			2,625.20			(2.8		)	2,626.00
Benefits and expenses:
Policyholder benefits	—			—			887			—			887
Interest credited to contract owner account balances	—			—			484.7			—			484.7
Operating expenses	0.7			—			769			(0.9		)	768.8
Net amortization of Deferred policy acquisition costs and Value of business acquired	—			—			118.1			—			118.1
Interest expense	37.7			10.6			1			(1.9		)	47.4
Operating expenses related to consolidated investment entities:
Interest expense	—			—			62.5			—			62.5
Other expense	—			—			1.2			—			1.2
Total benefits and expenses	38.4			10.6			2,323.50			(2.8		)	2,369.70
Income (loss) before income taxes	(35.1		)	(10.3		)	301.7			—			256.3
Income tax expense (benefit)	—			(5.8		)	56.4			(5.9		)	44.7
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	(35.1		)	(4.5		)	245.3			5.9			211.6
Equity in earnings (losses) of subsidiaries, net of tax	220.6			133.2			—			(353.8		)	—
Net income (loss) including noncontrolling interest	185.5			128.7			245.3			(347.9		)	211.6
Less: Net income (loss) attributable to noncontrolling interest	—			—			26.1			—			26.1
Net income (loss) available to Voya Financial, Inc.'s common shareholders	$	185.5		$	128.7		$	219.2		$	(347.9	)	$	185.5
Condensed Consolidating Statement of Operations
For the Three Months Ended March 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Revenues:
Net investment income	$	2		$	—		$	1,144.90		$	(1.3	)	$	1,145.60
Fee income	—			—			931.8			—			931.8
Premiums	—			—			600.9			—			600.9
Net realized gains (losses):
Total other-than-temporary impairments	—			—			(3.3		)	—			(3.3		)
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	—			—			—			—			—
Net other-than-temporary impairments recognized in earnings	—			—			(3.3		)	—			(3.3		)
Other net realized capital gains (losses)	0.6			—			(187.9		)	—			(187.3		)
Total net realized capital gains (losses)	0.6			—			(191.2		)	—			(190.6		)
Other revenue	0.9			—			105.5			(0.9		)	105.5
Income (loss) related to consolidated investment entities:
Net investment income	—			—			81.5			—			81.5
Changes in fair value related to collateralized loan obligations	—			—			(3.8		)	—			(3.8		)
Total revenues	3.5			—			2,669.60			(2.2		)	2,670.90
Benefits and expenses:
Policyholder benefits	—			—			865			—			865
Interest credited to contract owner account balances	—			—			493.1			—			493.1
Operating expenses	1.5			—			788.9			(0.9		)	789.5
Net amortization of Deferred policy acquisition costs and Value of business acquired	—			—			126.1			—			126.1
Interest expense	37.2			10.5			1.2			(1.3		)	47.6
Operating expenses related to consolidated investment entities:
Interest expense	—			—			46.2			—			46.2
Other expense	—			—			1.1			—			1.1
Total benefits and expenses	38.7			10.5			2,321.60			(2.2		)	2,368.60
Income (loss) before income taxes	(35.2		)	(10.5		)	348			—			302.3
Income tax expense (benefit)	—			3.3			22.1			5.3			30.7
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	(35.2		)	(13.8		)	325.9			(5.3		)	271.6
Equity in earnings (losses) of subsidiaries, net of tax	293.3			14.3			—			(307.6		)	—
Net income (loss) including noncontrolling interest	258.1			0.5			325.9			(312.9		)	271.6
Less: Net income (loss) attributable to noncontrolling interest	—			—			13.5			—			13.5
Net income (loss) available to Voya Financial, Inc.'s common shareholders	$	258.1		$	0.5		$	312.4		$	(312.9	)	$	258.1
Condensed Consolidating Statement of Comprehensive Income
For the Three Months Ended March 31, 2015
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Net income (loss) including noncontrolling interest	$	185.5		$	128.7		$	245.3		$	(347.9	)	$	211.6
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	654.4			435			654.4			(1,089.4		)	654.4
Other-than-temporary impairments	5.7			4.7			5.7			(10.4		)	5.7
Pension and other postretirement benefits liability	(3.4		)	(0.8		)	(3.4		)	4.2			(3.4		)
Other comprehensive income (loss), before tax	656.7			438.9			656.7			(1,095.6		)	656.7
Income tax expense (benefit) related to items of other comprehensive income (loss)	229.2			153			229.2			(382.2		)	229.2
Other comprehensive income (loss), after tax	427.5			285.9			427.5			(713.4		)	427.5
Comprehensive income (loss)	613			414.6			672.8			(1,061.3		)	639.1
Less: Comprehensive income (loss) attributable to noncontrolling interest	—			—			26.1			—			26.1
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	$	613		$	414.6		$	646.7		$	(1,061.3	)	$	613
Condensed Consolidating Statement of Comprehensive Income
For the Three Months Ended March 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Net income (loss) including noncontrolling interest	$	258.1		$	0.5		$	325.9		$	(312.9	)	$	271.6
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	1,110.10			767.7			1,113.20			(1,880.9		)	1,110.10
Other-than-temporary impairments	15.6			13.2			15.6			(28.8		)	15.6
Pension and other postretirement benefits liability	(3.4		)	(0.8		)	(3.4		)	4.2			(3.4		)
Other comprehensive income (loss), before tax	1,122.30			780.1			1,125.40			(1,905.5		)	1,122.30
Income tax expense (benefit) related to items of other comprehensive income (loss)	393.9			274.1			393.5			(667.6		)	393.9
Other comprehensive income (loss), after tax	728.4			506			731.9			(1,237.9		)	728.4
Comprehensive income (loss)	986.5			506.5			1,057.80			(1,550.8		)	1,000.00
Less: Comprehensive income (loss) attributable to noncontrolling interest	—			—			13.5			—			13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholder	$	986.5		$	506.5		$	1,044.30		$	(1,550.8	)	$	986.5
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2015
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Net cash provided by (used in) operating activities	$	(130.4	)	$	20.1		$	1,196.00		$	(32.0	)	$	1,053.70
Cash Flows from Investing Activities:
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	—			—			2,246.30			—			2,246.30
Equity securities, available-for-sale	7.1			—			0.8			—			7.9
Mortgage loans on real estate	—			—			312.8			—			312.8
Limited partnerships/corporations	—			—			33.3			—			33.3
Acquisition of:
Fixed maturities	—			—			(2,937.4		)	—			(2,937.4		)
Equity securities, available-for-sale	(13.3		)	—			(1.0		)	—			(14.3		)
Mortgage loans on real estate	—			—			(713.3		)	—			(713.3		)
Limited partnerships/corporations	—			—			(33.7		)	—			(33.7		)
Short-term investments, net	(212.0		)	—			307.9			—			95.9
Policy loans, net	—			—			29.9			—			29.9
Derivatives, net	(2.5		)	—			(82.8		)	—			(85.3		)
Other investments, net	—			13.3			0.2			—			13.5
Sales from consolidated investments entities	—			—			767.6			—			767.6
Purchases of consolidated investment entities	—			—			(1,320.7		)	—			(1,320.7		)
Maturity of intercompany loans with maturities more than three months	0.3			—			—			(0.3		)	—
Net maturity of short-term intercompany loans	(14.7		)	—			(534.3		)	549			—
Return of capital contributions and dividends from subsidiaries	32			—			—			(32.0		)	—
Collateral received (delivered), net	—			—			360.2			—			360.2
Purchases of fixed assets, net	—			—			(8.6		)	—			(8.6		)
Net cash provided by (used in) investing activities	(203.1		)	13.3			(1,572.8		)	516.7			(1,245.9		)
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2015
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Cash Flows from Financing Activities:
Deposits received for investment contracts	—			—			1,864.30			—			1,864.30
Maturities and withdrawals from investment contracts	—			—			(1,760.8		)	—			(1,760.8		)
Debt issuance costs	(6.2		)	—			—			—			(6.2		)
Intercompany loans with maturities of more than three months	—			—			(0.3		)	0.3			—
Net (repayments of) proceeds from short-term intercompany loans	534.3			(1.3		)	16			(549.0		)	—
Return of capital contributions and dividends to parent	—			(32.0		)	(32.0		)	64			—
Borrowings of consolidated investment entities	—			—			350			—			350
Repayments of debt of consolidated investment entities	—			—			(15.9		)	—			(15.9		)
Contributions from (distributions to) participants in consolidated investment entities	—			—			(268.9		)	—			(268.9		)
Common stock acquired - Share buyback	(622.0		)	—			—			—			(622.0		)
Share-based compensation	(2.7		)	—			—			—			(2.7		)
Excess tax benefits on share-based compensation	—			—			1.3			—			1.3
Dividends paid	(2.4		)	—			—			—			(2.4		)
Net cash provided by (used in) financing activities	(99.0		)	(33.3		)	153.7			(484.7		)	(463.3		)
Net increase (decrease) in cash and cash equivalents	(432.5		)	0.1			(223.1		)	—			(655.5		)
Cash and cash equivalents, beginning of period	682.1			1.6			1,847.20			—			2,530.90
Cash and cash equivalents, end of period	$	249.6		$	1.7		$	1,624.10		$	—		$	1,875.40
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Net cash provided by (used in) operating activities	$	(12.1	)	$	8		$	816.7		$	(26.0	)	$	786.6
Cash Flows from Investing Activities:
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	—			—			2,629.70			—			2,629.70
Equity securities, available-for-sale	2.4			13.1			32.2			—			47.7
Mortgage loans on real estate	—			—			307.4			—			307.4
Limited partnerships/corporations	—			—			60.9			—			60.9
Acquisition of:
Fixed maturities	—			—			(3,057.2		)	—			(3,057.2		)
Equity securities, available-for-sale	(6.5		)	—			(0.9		)	—			(7.4		)
Mortgage loans on real estate	—			—			(252.9		)	—			(252.9		)
Limited partnerships/corporations	—			—			(18.4		)	—			(18.4		)
Short-term investments, net	(21.0		)	—			22.9			—			1.9
Policy loans, net	—			—			27.3			—			27.3
Derivatives, net	11.5			—			(190.1		)	—			(178.6		)
Other investments, net	—			—			2			—			2
Sales from consolidated investments entities	—			—			571.8			—			571.8
Purchases of consolidated investment entities	—			—			(1,258.8		)	—			(1,258.8		)
Maturity of intercompany loans with maturities more than three months	0.6			—			—			(0.6		)	—
Net maturity of short-term intercompany loans	(159.3		)	—			(180.0		)	339.3			—
Return of capital contributions from subsidiaries	75			—			—			(75.0		)	—
Capital contributions to subsidiaries	—			(156.0		)	—			156			—
Collateral received (delivered), net	—			—			89.4			—			89.4
Purchases of fixed assets, net	—			—			(8.7		)	—			(8.7		)
Other, net	—			0.2			(0.2		)	—			—
Net cash provided by (used in) investing activities	(97.3		)	(142.7		)	(1,223.6		)	419.7			(1,043.9		)
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Cash Flows from Financing Activities:
Deposits received for investment contracts	—			—			2,500.00			—			2,500.00
Maturities and withdrawals from investment contracts	—			—			(2,809.7		)	—			(2,809.7		)
Debt issuance costs	(16.7		)	—			—			—			(16.7		)
Intercompany loans with maturities of more than three months	—			—			(0.6		)	0.6			—
Net (repayments of) proceeds from short-term intercompany loans	180			135.1			24.2			(339.3		)	—
Return of capital contributions and dividends to parent	—			—			(101.0		)	101			—
Contributions of capital from parent	—			—			156			(156.0		)	—
Borrowings of consolidated investment entities	—			—			28.4			—			28.4
Contributions from (distributions to) participants in consolidated investment entities	—			—			466.9			—			466.9
Common stock acquired - Share buyback	(250.0		)	—			—			—			(250.0		)
Dividends paid	(2.6		)	—			—			—			(2.6		)
Net cash provided by (used in) financing activities	(89.3		)	135.1			264.2			(393.7		)	(83.7		)
Net increase (decrease) in cash and cash equivalents	(198.7		)	0.4			(142.7		)	—			(341.0		)
Cash and cash equivalents, beginning of period	640.2			1.1			2,199.50			—			2,840.80
Cash and cash equivalents, end of period	$	441.5		$	1.5		$	2,056.80		$	—		$	2,499.80

Business_Basis_of_Presentation1

Business, Basis of Presentation and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
	The accompanying Condensed Consolidated Financial Statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and are unaudited. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. Those estimates are inherently subject to change and actual results could differ from those estimates.
	The Condensed Consolidated Financial Statements include the accounts of Voya Financial, Inc. and its subsidiaries, as well as partnerships (voting interest entities (“VOEs”)) in which the Company has control and variable interest entities (“VIEs”) for which the Company is the primary beneficiary. See the Consolidated Investment Entities Note to these Condensed Consolidated Financial Statements. Intercompany transactions and balances have been eliminated.
	The accompanying Condensed Consolidated Financial Statements reflect adjustments (including normal, recurring adjustments) necessary to present fairly the financial position of the Company as of March 31, 2015, its results of operations, comprehensive income, changes in shareholders' equity and statements of cash flows for the three months ended March 31, 2015 and 2014, in conformity with U.S. GAAP. Interim results are not necessarily indicative of full year performance. The December 31, 2014 Consolidated Balance Sheet is from the audited Consolidated Financial Statements included in the Company's Annual Report on Form 10-K, filed with the SEC. Therefore, these unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements included in the Company's Annual Report on Form 10-K.
Adoption of New Pronouncements	Adoption of New Pronouncements
	Repurchase Agreements
	In June 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-11, “Transfers and Servicing (Accounting Standards Codification (“ASC”) Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures” (“ASU 2014-11”), which (1) changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting, and (2) requires separate accounting for a transfer of a financial asset executed with a repurchase agreement with the same counterparty. This will result in secured borrowing accounting for the repurchase agreement. The amendments also require additional disclosures for certain transactions accounted for as a sale and for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions that are accounted for as secured borrowings.
	The provisions of ASU 2014-11 were adopted by the Company on January 1, 2015, with the exception of disclosure amendments for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions that are accounted for as secured borrowings, which are effective for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. The Company is currently in the process of determining the impact of adoption of the disclosure provisions of ASU 2014-11. The adoption of the January 1, 2015 provisions had no effect on the Company's financial condition, results of operations or cash flows.
	Future Adoption of Accounting Pronouncements
	Internal-Use Software
	In April 2015, the FASB issued ASU 2015-05, "Intangibles - Goodwill and Other-Internal-Use Software (ASC Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement" ("ASU 2015-05"), which clarifies that customers should account for software licenses included in cloud computing arrangements (ex. software as a service) consistent with the acquisition of other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract.
	The provisions of ASU 2015-05 are effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2015, with early adoption permitted. The amendments can be applied prospectively or retrospectively. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2015-05.
	Defined Benefit Plans
	In April 2015, the FASB issued ASU 2015-04, "Compensation - Retirement Benefits (ASC Topic 715): Practical Expedient for the Measurement Date of an Employer’s Defined Benefit Obligation and Plan Assets" ("ASU 2015-04"), which clarifies that if a contribution or significant event occurs between the month-end date used to measure defined benefit plans assets and obligations and an entity’s fiscal year end, the entity should adjust the measurement of defined benefit plan assets and obligations to reflect the effects of those contributions or significant events.
	The provisions of ASU 2015-04 are effective, prospectively, for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years, with early adoption permitted. The Company does not expect ASU 2015-04 to have an impact.
	Debt Issuance Costs
	In April 2015, the FASB issued ASU 2015-03, "Interest - Imputation of Interest (ASC Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs" ("ASU 2015-03"), which requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability.
	The provisions of ASU 2015-03 are effective, retrospectively, for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years, with early adoption permitted. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2015-03.
	Consolidation
	In February 2015, the FASB issued ASU 2015-02, “Consolidation (ASC Topic 810): Amendments to the Consolidation Analysis” (“ASU 2015-02”), which:
	•	Modifies the evaluation of whether limited partnerships and similar legal entities are VIEs or VOEs, including the requirement to consider the rights of all equity holders at risk to determine if they have the power to direct the entity’s most significant activities.
	•	Eliminates the presumption that a general partner should consolidate a limited partnership. Limited partnerships and similar entities will be VIEs unless the limited partners hold substantive kick-out rights or participating rights.
	•	Affects the consolidation analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships.
	•	Provides a new scope exception for registered money market funds and similar unregistered money market funds, and ends the deferral granted to investment companies from applying the VIE guidance.
	The provisions of ASU 2015-02 are effective for annual periods, and for interim periods within those annual periods, beginning after December 15, 2015, with early adoption permitted, using either a retrospective or modified retrospective approach. The Company is currently in the process of determining the impact of the adoption of the provisions of ASU 2015-02.
	Going Concern
	In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements-Going Concern (ASC Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” (“ASU 2014-15”), which requires management to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued. The provisions of ASU 2014-15 will not affect a company's financial condition, results of operation, or cash flows, but require disclosure if management determines there is substantial doubt, including management’s plans to alleviate or mitigate the conditions or events that raise substantial doubt.
	The provisions of ASU 2014-15 are effective for annual periods ending after December 15, 2016, and annual and interim periods thereafter. The Company does not expect ASU 2014-15 to have an impact.
	Collateralized Financing Entities
	In August 2014, the FASB issues ASU 2014-13, “Consolidation (ASC Topic 810): Measuring the Financial Assets and the Financial Liabilities of a Consolidated Collateralized Financing Entity” (“ASU 2014-13”), which allows an entity to elect to measure the financial assets and financial liabilities of a consolidated collateralized financing entity using either:
	•	ASC Topic 820, whereby both the financial assets and liabilities are measured using the requirements of ASC Topic 820, with any difference reflected in earnings and attributed to the reporting entity in the statement of operations.
	•	The measurement alternative, whereby both the financial assets and liabilities are measured using the more observable of the fair value of the financial assets and the fair value of the financial liabilities.
	The provisions of ASU 2014-13 are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015, with early adoption permitted. The Company is currently in the process of determining the impact of the adoption of the provisions of ASU 2014-13.
	Share-based Payments
	In June 2014, the FASB issued ASU 2014-12, “Compensation-Stock Compensation (ASC Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period“ (“ASU 2014-12”), which requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition and should not be reflected in estimating the grant-date fair value of the award. Compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved.
	The provisions of ASU 2014-12 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. The amendments can be applied prospectively or retrospectively. The Company does not expect ASU 2014-12 to have an impact on its financial condition or results of operations, as the guidance is consistent with that previously applied.
	Revenue from Contracts with Customers
	In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (ASC Topic 606)” (“ASU 2014-09”), which requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Revenue is recognized when, or as, the entity satisfies a performance obligation under the contract. The standard also requires disclosures regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.
	The provisions of ASU 2014-09 are effective retrospectively for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2014-09.
	Discontinued Operations and Disposals
	In April 2014, the FASB issued ASU 2014-08, “Presentation of Financial Statements (ASC Topic 205) and Property, Plant, and Equipment (ASC Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity” (“ASU 2014-08”), which requires the disposal of a component of an entity to be reported in discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on the entity's operations and financial results. The component should be reported in discontinued operations when it meets the criteria to be classified as held for sale, is disposed of by sale or is disposed of other than by sale.
	The amendments also require additional disclosures about discontinued operations, including disclosures about an entity’s significant continuing involvement with a discontinued operation and disclosures for a disposal of an individually significant component of an entity that does not qualify for discontinued operations.
	The provisions of ASU 2014-08 are effective for annual periods beginning after December 15, 2014 and for interim periods beginning after December 15, 2015. The amendments should be applied prospectively to disposals and classifications as held for sale that occur within those periods. The Company is currently in the process of determining the impact of adoption of the provisions of ASU 2014-08.
Derivatives	Derivative Financial Instruments
	The Company enters into the following types of derivatives:
	Interest rate caps: The Company uses interest rate cap contracts to hedge the interest rate exposure arising from duration mismatches between assets and liabilities. Interest rate caps are also used to hedge interest rate exposure if rates rise above a specified level. Such increases in rates will require the Company to incur additional expenses. The future payout from the interest rate caps fund this increased exposure. The Company pays an upfront premium to purchase these caps. The Company utilizes these contracts in non-qualifying hedging relationships.
	Interest rate swaps: Interest rate swaps are used by the Company primarily to reduce market risks from changes in interest rates and to alter interest rate exposure arising from mismatches between assets and/or liabilities. Interest rate swaps are also used to hedge the interest rate risk associated with the value of assets it owns or in an anticipation of acquiring them. Using interest rate swaps, the Company agrees with another party to exchange, at specified intervals, the difference between fixed rate and floating rate interest payments, calculated by reference to an agreed upon notional principal amount. These transactions are entered into pursuant to master agreements that provide for a single net payment to be made to/from the counterparty at each due date. The Company utilizes these contracts in qualifying hedging relationships as well as non-qualifying hedging relationships.
	Foreign exchange swaps: The Company uses foreign exchange or currency swaps to reduce the risk of change in the value, yield or cash flows associated with certain foreign denominated invested assets. Foreign exchange swaps represent contracts that require the exchange of foreign currency cash flows against U.S. dollar cash flows at regular periods, typically quarterly or semi-annually. The Company utilizes these contracts in qualifying hedging relationships as well as non-qualifying hedging relationships.
	Credit default swaps: Credit default swaps are used to reduce credit loss exposure with respect to certain assets that the Company owns or to assume credit exposure on certain assets that the Company does not own. Payments are made to, or received from, the counterparty at specified intervals. In the event of a default on the underlying credit exposure, the Company will either receive a payment (purchased credit protection) or will be required to make a payment (sold credit protection) equal to the par minus recovery value of the swap contract. The Company utilizes these contracts in non-qualifying hedging relationships.
	Total return swaps: The Company uses total return swaps as a hedge against a decrease in variable annuity account values, which are invested in certain indices. Using total return swaps, the Company agrees with another party to exchange, at specified intervals, the difference between the economic risk and reward of assets or a market index and the LIBOR rate, calculated by reference to an agreed upon notional principal amount. No cash is exchanged at the onset of the contracts. Cash is paid and received over the life of the contract based upon the terms of the swaps. The Company utilizes these contracts in non-qualifying hedging relationships.
	Currency forwards: The Company uses currency forward contracts to hedge policyholder liabilities associated with the variable annuity contracts which are linked to foreign indices. The currency fluctuations may result in a decrease in account values, which would increase the possibility of the Company incurring an expense for guaranteed benefits in excess of account values. The Company utilizes these contracts in non-qualifying hedging relationships.
	Forwards: The Company uses forward contracts to hedge certain invested assets against movement in interest rates, particularly mortgage rates. The Company uses To Be Announced mortgage-backed securities as an economic hedge against rate movements. The Company utilizes forward contracts in non-qualifying hedging relationships.
	Futures: Futures contracts are used to hedge against a decrease in certain equity indices. Such decreases may result in a decrease in variable annuity account values which would increase the possibility of the Company incurring an expense for guaranteed benefits in excess of account values. The Company also uses futures contracts as a hedge against an increase in certain equity indices. Such increases may result in increased payments to the holders of the fixed index annuity ("FIA") contracts. The Company enters into exchange traded futures with regulated futures commissions that are members of the exchange. The Company also posts initial and variation margins, with the exchange, on a daily basis. The Company utilizes exchange-traded futures in non-qualifying hedging relationships.
	Swaptions: A swaption is an option to enter into a swap with a forward starting effective date. The Company uses swaptions to hedge the interest rate exposure associated with the minimum crediting rate and book value guarantees embedded in the retirement products that the Company offers. Increases in interest rates will generate losses on assets that are backing such liabilities. In certain instances, the Company locks in the economic impact of existing purchased swaptions by entering into offsetting written swaptions. Swaptions are also used to hedge against an increase in the interest rate benchmarked crediting strategies within FIA contracts. Such increases may result in increased payments to contract holders of FIA contracts and the interest rate swaptions offset this increased exposure. The Company pays a premium when it purchases the swaption. The Company utilizes these contracts in non-qualifying hedging relationships.
	Options: The Company uses put options to manage the equity, interest rate and equity volatility risk of the economic liabilities associated with certain variable annuity minimum guaranteed benefits. The Company also uses call options to hedge against an increase in various equity indices. Such increases may result in increased payments to the holders of the FIA contracts. The Company pays an upfront premium to purchase these options. The Company utilizes these options in non-qualifying hedging relationships.
	Variance swaps: The Company uses variance swaps to manage equity volatility risk on the economic liabilities associated with certain minimum guaranteed living benefits and/or to mitigate certain rebalancing costs resulting from increased volatility. An increase in the equity volatility results in higher valuations of such liabilities. In an equity variance swap, the Company agrees with another party to exchange amounts in the future, based on the changes in equity volatility over a defined period. The Company utilizes equity variance swaps in non-qualifying hedging relationships.
	Managed custody guarantees ("MCG"): The Company issues certain credited rate guarantees on variable fixed income portfolios that represent stand-alone derivatives. The market value is partially determined by, among other things, levels of or changes in interest rates, prepayment rates and credit ratings/spreads.
	Embedded derivatives: The Company also invests in certain fixed maturity instruments and has issued certain annuity products that contain embedded derivatives whose market value is at least partially determined by, among other things, levels of or changes in domestic and/or foreign interest rates (short-term or long-term), exchange rates, prepayment rates, equity rates or credit ratings/spreads. In addition, the Company has entered into coinsurance with funds withheld arrangements, which contain embedded derivatives.
	The Company's use of derivatives is limited mainly to economic hedging to reduce the Company's exposure to cash flow variability of assets and liabilities, interest rate risk, credit risk, exchange rate risk and market risk. It is the Company's policy not to offset amounts recognized for derivative instruments and amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral arising from derivative instruments executed with the same counterparty under a master netting arrangement, which provides the Company with the legal right of offset.
Fair Value Measurement	Fair Value Measurements (excluding Consolidated Investment Entities)
	Fair Value Measurement
	The Company categorizes its financial instruments into a three-level hierarchy based on the priority of the inputs to the valuation technique, pursuant to ASU 2011-04, “Fair Value Measurements (ASC Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP” (“ASU 2011-04”). The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3), as described in the Fair Value Measurements (excluding Consolidated Investment Entities) Note in the Consolidated Financial Statements in Part II, Item 8. of the Company's 2014 Annual Report on Form 10-K. If the inputs used to measure fair value fall within different levels of the hierarchy, the category level is based on the lowest priority level input that is significant to the fair value measurement of the instrument.
	When available, the estimated fair value of financial instruments is based on quoted prices in active markets that are readily and regularly obtainable. When quoted prices in active markets are not available, the determination of estimated fair value is based on market standard valuation methodologies, including discounted cash flow methodologies, matrix pricing or other similar techniques.
	The following disclosures are made in accordance with the requirements of ASC Topic 825 which requires disclosure of fair value information about financial instruments, whether or not recognized at fair value on the Condensed Consolidated Balance Sheets, for which it is practicable to estimate that value. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates, in many cases, could not be realized in immediate settlement of the instrument.
	ASC Topic 825 excludes certain financial instruments, including insurance contracts and all nonfinancial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.
	The following valuation methods and assumptions were used by the Company in estimating the fair value of the following financial instruments, which are not carried at fair value on the Condensed Consolidated Balance Sheets:
	Mortgage loans on real estate: The fair values for mortgage loans on real estate are estimated on a monthly basis using discounted cash flow analyses and rates currently being offered in the marketplace for similar loans to borrowers with similar credit ratings. Loans with similar characteristics are aggregated for purposes of the calculations. Mortgage loans on real estate are classified as Level 3.
	Policy loans: The fair value of policy loans approximates the carrying value of the loans. Policy loans are collateralized by the cash surrender value of the associated insurance contracts and are classified as Level 2.
	Limited partnerships/corporations: The fair value for these investments, primarily private equity fund of funds and hedge funds, is based on actual or estimated Net Asset Value (“NAV”) information, as provided by the investee and are classified as Level 3.
	Other investments: Primarily Federal Home Loan Bank (“FHLB”) stock, which is carried at cost and periodically evaluated for impairment based on ultimate recovery of par value and is classified as Level 1.
	Investment contract liabilities:
	Funding agreements without fixed maturities and deferred annuities: Fair value is estimated as the mean present value of stochastically modeled cash flows associated with the contract liabilities taking into account assumptions about contract holder behavior. The stochastic valuation scenario set is consistent with current market parameters and discount is taken using stochastically evolving risk-free rates in the scenarios plus an adjustment for nonperformance risk. Margins for non-financial risks associated with the contract liabilities are also included. These liabilities are classified as Level 3.
	Funding agreements with fixed maturities and guaranteed investment contracts: Fair value is estimated by discounting cash flows, including associated expenses for maintaining the contracts, at rates, that are risk-free rates plus an adjustment for nonperformance risk. These liabilities are classified as Level 2.
	Supplementary contracts and immediate annuities: Fair value is estimated as the mean present value of the single deterministically modeled cash flows associated with the contract liabilities discounted using stochastically evolving short risk-free rates in the scenarios plus an adjustment for nonperformance risk. The valuation is consistent with current market parameters. Margins for non-financial risks associated with the contract liabilities are also included. These liabilities are classified as Level 3.
	Long-term debt: Estimated fair value of the Company’s long-term debt is based upon discounted future cash flows using a discount rate approximating the current market rate, incorporating nonperformance risk. Long-term debt is classified as Level 2.
	Fair value estimates are made at a specific point in time, based on available market information and judgments about various financial instruments, such as estimates of timing and amounts of future cash flows. Such estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument, nor do they consider the tax impact of the realization of unrealized capital gains (losses). In many cases, the fair value estimates cannot be substantiated by comparison to independent markets, nor can the disclosed value be realized in immediate settlement of the instruments. In evaluating the Company’s management of interest rate, price and liquidity risks, the fair values of all assets and liabilities should be taken into consideration, not only those presented above.
Fair Value of Financial Instruments	Valuation of Financial Assets and Liabilities at Fair Value
	Certain assets and liabilities are measured at estimated fair value on the Company’s Condensed Consolidated Balance Sheets. The Company defines fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The exit price and the transaction (or entry) price will be the same at initial recognition in many circumstances. However, in certain cases, the transaction price may not represent fair value. The fair value of a liability is based on the amount that would be paid to transfer a liability to a third-party with an equal credit standing. Fair value is required to be a market-based measurement that is determined based on a hypothetical transaction at the measurement date, from a market participant’s perspective. The Company considers three broad valuation techniques when a quoted price is unavailable: (i) the market approach, (ii) the income approach and (iii) the cost approach. The Company determines the most appropriate valuation technique to use, given the instrument being measured and the availability of sufficient inputs. The Company prioritizes the inputs to fair valuation techniques and allows for the use of unobservable inputs to the extent that observable inputs are not available.
	The Company utilizes a number of valuation methodologies to determine the fair values of its financial assets and liabilities in conformity with the concepts of “exit price” and the fair value hierarchy as prescribed in ASC Topic 820. Valuations are obtained from third-party commercial pricing services, brokers and industry-standard, vendor-provided software that models the value based on market observable inputs. The valuations obtained from third-party commercial pricing services are non-binding. The Company reviews the assumptions and inputs used by third-party commercial pricing services for each reporting period in order to determine an appropriate fair value hierarchy level. The documentation and analysis obtained from third-party commercial pricing services are reviewed by the Company, including in-depth validation procedures confirming the observability of inputs. The valuations are reviewed and validated monthly through the internal valuation committee price variance review, comparisons to internal pricing models, back testing to recent trades or monitoring of trading volumes.
	Fixed maturities: The fair values for actively traded marketable bonds are determined based upon the quoted market prices and are classified as Level 1 assets. Assets in this category primarily include certain U.S. Treasury securities.
	For fixed maturities classified as Level 2 assets, fair values are determined using the market approach, based on prices obtained from third-party commercial pricing services and the Company’s matrix pricing models, which in each case incorporate a variety of market observable information as valuation inputs. The market observable inputs used for these fair value measurements, by fixed maturity asset class, are as follows:
	US Treasuries, Government Agencies and Authorities, States and Municipalities: Fair value is determined principally using third-party commercial pricing services, with the primary inputs being US Treasury yield curves, trades of comparable securities, credit spreads off benchmark yields, and issuer ratings.
	US/Foreign Public Corporates and Foreign Governments: Fair value is determined principally using third-party commercial pricing services, with the primary inputs being benchmark yields, trades of comparable securities, issuer ratings, bids and credit spreads off benchmark yields.
	US/Foreign Private Corporates: Fair values are determined principally using a matrix-based pricing model. The model incorporates the current level of risk-free interest rates, current corporate credit spreads, credit quality of the issuer and cash flow characteristics of the security. The model also considers a liquidity spread, the value of any collateral, the capital structure of the issuer, the presence of guarantees and the Company’s evaluation of the issuer’s ability to compete in its relevant market.
	RMBS, CMBS and ABS: Fair value is determined principally using third-party commercial pricing services, with the primary inputs being credit spreads off benchmark yields, prepayment speed assumptions, current and forecasted loss severity, debt service coverage ratios, collateral type, payment priority within tranche and the vintage of the loans underlying the security.
	Level 3 Financial Instruments
	The fair values of certain assets and liabilities are determined using prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement (i.e., Level 3 as defined by ASC Topic 820), including but not limited to liquidity spreads for investments within markets deemed not currently active. These valuations, whether derived internally or obtained from a third-party, use critical assumptions that are not widely available to estimate market participant expectations in valuing the asset or liability. In addition, the Company has determined, for certain financial instruments, an active market is such a significant input to determine fair value that the presence of an inactive market may lead to classification in Level 3. In light of the methodologies employed to obtain the fair values of financial assets and liabilities classified as Level 3, additional information is presented below.
Compensation Expense	The Company measures the cost of the share-based awards at their grant date fair value, based upon the market value of the stock, and recognizes that cost over the vesting period. Differences in actual versus expected experience or changes in expected forfeitures are recognized in the period of change. Compensation expense is principally related to the granting of PSUs and RSUs and is recognized in Operating expenses in the Condensed Consolidated Statements of Operations.
	The liability related to the awards made under the Phantom Plan is recorded within Other liabilities. Unlike equity-settled awards, which have a fixed grant-date fair value, the fair value of unvested cash-settled awards is remeasured at the end of each reporting period until the awards vest.

Investments_excluding_Consolid1

Investments (excluding Consolidated Investment Entities) (Tables)	3 Months Ended
	Mar. 31, 2015
Available-for-sale Securities, Including Securities Pledged [Line Items]
Marketable Securities	Available-for-sale and fair value option ("FVO") fixed maturities and equity securities were as follows as of March 31, 2015:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	3,071.50		$	709.8			$	0.1		$	—		$	3,781.20		$	—
	U.S. Government agencies and authorities	376.8			65.3				—			—			442.1			—
	State, municipalities and political subdivisions	754.3			44.5				0.7			—			798.1			—
	U.S. corporate securities	38,453.60			4,017.10				111.4			—			42,359.30			9.6
	Foreign securities(1):
	Government	864.9			56.2				9.8			—			911.3			—
	Other	14,744.90			1,141.20				84.4			—			15,801.70			—
	Total foreign securities	15,609.80			1,197.40				94.2			—			16,713.00			—
	Residential mortgage-backed securities:
	Agency	4,902.20			445.6				8.7			70.3			5,409.40			0.4
	Non-Agency	947.4			168.2				8.3			43.7			1,151.00			57.1
	Total Residential mortgage-backed securities	5,849.60			613.8				17			114			6,560.40			57.5
	Commercial mortgage-backed securities	3,897.00			290.7				1.8			—			4,185.90			6.7
	Other asset-backed securities	1,398.50			79.4				15.5			—			1,462.40			6.5
	Total fixed maturities, including securities pledged	69,411.10			7,018.00				240.7			114			76,302.40			80.3
	Less: Securities pledged	1,078.80			145.6				14.7			—			1,209.70			—
	Total fixed maturities	68,332.30			6,872.40				226			114			75,092.70			80.3
	Equity securities:
	Common stock	200.6			0.5				0.1			—			201			—
	Preferred stock	50.4			32.2				—			—			82.6			—
	Total equity securities	251			32.7				0.1			—			283.6			—
	Total fixed maturities and equity securities investments	$	68,583.30		$	6,905.10			$	226.1		$	114		$	75,376.30		$	80.3
	(1) Primarily U.S. dollar denominated.
	(2) Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
	(3) Represents Other-than-Temporary-Impairments ("OTTI") reported as a component of Other comprehensive income (loss).
	Available-for-sale and FVO fixed maturities and equity securities were as follows as of December 31, 2014:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	3,279.00		$	625.9			$	0.9		$	—		$	3,904.00		$	—
	U.S. Government agencies and authorities	376.1			59.8				—			—			435.9			—
	State, municipalities and political subdivisions	659.5			35.4				0.5			—			694.4			—
	U.S. corporate securities	37,425.50			3,479.20				163.9			—			40,740.80			10.2
	Foreign securities(1):
	Government	858.3			47				14			—			891.3			—
	Other	14,673.30			983.6				104			—			15,552.90			—
	Total foreign securities	15,531.60			1,030.60				118			—			16,444.20			—
	Residential mortgage-backed securities:
	Agency	4,983.30			421				13			72.5			5,463.80			0.4
	Non-Agency	989.4			168.9				8.6			43.3			1,193.00			62.1
	Total Residential mortgage-backed securities	5,972.70			589.9				21.6			115.8			6,656.80			62.5
	Commercial mortgage-backed securities	3,916.30			273.3				1.4			—			4,188.20			6.7
	Other asset-backed securities	1,538.10			74.3				17.3			—			1,595.10			6.6
	Total fixed maturities, including securities pledged	68,698.80			6,168.40				323.6			115.8			74,659.40			86
	Less: Securities pledged	1,089.30			109.2				13.9			—			1,184.60			—
	Total fixed maturities	67,609.50			6,059.20				309.7			115.8			73,474.80			86
	Equity securities:
	Common stock	191.5			0.5				0.2			—			191.8			—
	Preferred stock	50.5			29.5				—			—			80			—
	Total equity securities	242			30				0.2			—			271.8			—
	Total fixed maturities and equity securities investments	$	67,851.50		$	6,089.20			$	309.9		$	115.8		$	73,746.60		$	86
	(1) Primarily U.S. dollar denominated.
	(2) Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
	(3) Represents OTTI reported as a component of Other comprehensive income (loss).
Investments Classified by Contractual Maturity Date	The amortized cost and fair value of fixed maturities, including securities pledged, as of March 31, 2015, are shown below by contractual maturity. Actual maturities may differ from contractual maturities as securities may be restructured, called or prepaid. Mortgage-backed securities ("MBS") and Other asset-backed securities ("ABS") are shown separately because they are not due at a single maturity date.
		Amortized			Fair
		Cost			Value
	Due to mature:
	One year or less	$	2,074.30		$	2,091.40
	After one year through five years	12,699.30			13,448.40
	After five years through ten years	20,483.30			21,582.60
	After ten years	23,009.10			26,971.30
	Mortgage-backed securities	9,746.60			10,746.30
	Other asset-backed securities	1,398.50			1,462.40
	Fixed maturities, including securities pledged	$	69,411.10		$	76,302.40
U.S. and Foreign Corporate Securities by Industry	The following tables set forth the composition of the U.S. and foreign corporate securities within the fixed maturity portfolio by industry category as of the dates indicated:
		Amortized			Gross				Gross			Fair
		Cost			Unrealized				Unrealized			Value
					Capital				Capital
					Gains				Losses
	March 31, 2015
	Communications	$	3,896.40		$	562.3			$	2		$	4,456.70
	Financial	7,797.10			798.1				2.7			8,592.50
	Industrial and other companies	30,762.70			2,517.40				168.4			33,111.70
	Utilities	9,158.90			1,107.10				21			10,245.00
	Transportation	1,583.40			173.4				1.7			1,755.10
	Total	$	53,198.50		$	5,158.30			$	195.8		$	58,161.00
	December 31, 2014
	Communications	$	3,934.50		$	512.4			$	5.7		$	4,441.20
	Financial	7,568.10			729.3				7.6			8,289.80
	Industrial and other companies	30,055.80			2,109.30				231			31,934.10
	Utilities	9,046.30			959.9				19.7			9,986.50
	Transportation	1,494.10			151.9				3.9			1,642.10
	Total	$	52,098.80		$	4,462.80			$	267.9		$	56,293.70
Schedule of Unrealized Loss on Investments	Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of March 31, 2015:
		Six Months or Less							More Than Six						More Than Twelve					Total
		Below Amortized Cost							Months and Twelve Months or Less						Months Below
									Below Amortized Cost						Amortized Cost
		Fair Value			Unrealized Capital Losses				Fair Value			Unrealized Capital Losses			Fair Value			Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
	U.S. Treasuries	$	35.5		$	0.1			$	—		$	—		$	—		$	—	$	35.5	$	0.1
	U.S. Government agencies and authorities	—			—				—			—			—			—		—		—
	State, municipalities and political subdivision	29.6			0.3				—			—			1.5			0.4		31.1		0.7
	U.S. corporate securities	1,737.00			51.7				254.7			18.8			615			40.9		2,606.70		111.4
	Foreign	1,184.60			47				253.1			28.8			283.3			18.4		1,721.00		94.2
	Residential mortgage-backed	240.5			1.8				25.5			0.3			417.1			14.9		683.1		17
	Commercial mortgage-backed	34.8			0.6				—			—			2.7			1.2		37.5		1.8
	Other asset-backed	33.5			—			*	10.5			—		*	225			15.5		269		15.5
	Total	$	3,295.50		$	101.5			$	543.8		$	47.9		$	1,544.60		$	91.3	$	5,383.90	$	240.7
	* Less than $0.1.
	Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of December 31, 2014:
		Six Months or Less							More Than Six						More Than Twelve					Total
		Below Amortized Cost							Months and Twelve Months or Less						Months Below
									Below Amortized Cost						Amortized Cost
		Fair Value			Unrealized Capital Losses				Fair Value			Unrealized Capital Losses			Fair Value			Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
	U.S. Treasuries	$	81.1		$	0.1			$	—		$	—		$	42.1		$	0.8	$	123.2	$	0.9
	U.S. Government agencies and authorities	6.4			—			*	—			—			—			—		6.4		—		*
	State, municipalities and political subdivision	43			0.1				—			—			1.6			0.4		44.6		0.5
	U.S. corporate securities	2,477.90			65				76.3			3.6			2,708.40			95.3		5,262.60		163.9
	Foreign	1,869.30			80.6				37.8			1.2			668.6			36.2		2,575.70		118
	Residential mortgage-backed	319.6			1.7				59.9			1			645.7			18.9		1,025.20		21.6
	Commercial mortgage-backed	120.7			0.5				3.1			0.9			—			—		123.8		1.4
	Other asset-backed	126.4			0.2				6.4			—		*	232.1			17.1		364.9		17.3
	Total	$	5,044.40		$	148.2			$	183.5		$	6.7		$	4,298.50		$	168.7	$	9,526.40	$	323.6
	* Less than $0.1.
Schedule of Loan-to-Value, Credit Enhancement and Fixed Floating Rates for RMBS and Other ABS in a Gross Unrealized Loss Position	The following tables summarize loan-to-value, credit enhancement and fixed floating rate details for residential mortgage-backed securities ("RMBS") and Other ABS in a gross unrealized loss position as of the dates indicated:
		Loan-to-Value Ratio
		Amortized Cost							Unrealized Capital Losses
	March 31, 2015	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS > 100%	$	4.9		$	—			$	0.3		$	—
	Non-agency RMBS > 90% - 100%	26.7			—				1.2			—
	Non-agency RMBS 80% - 90%	61.9			—				2.9			—
	Non-agency RMBS < 80%	311			4.5				16.8			1.1
	Agency RMBS	515.3			3.4				7			1.7
	Other ABS (Non-RMBS)	55			1.9				1.1			0.4
	Total RMBS and Other ABS	$	974.8		$	9.8			$	29.3		$	3.2
		Credit Enhancement Percentage
		Amortized Cost							Unrealized Capital Losses
	March 31, 2015	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS 10% +	$	320.3		$	4.2			$	16.5		$	0.9
	Non-agency RMBS > 5% - 10%	22.3			—				0.8			—
	Non-agency RMBS > 0% - 5%	19.7			—				0.6			—
	Non-agency RMBS 0%	42.2			0.3				3.3			0.2
	Agency RMBS	515.3			3.4				7			1.7
	Other ABS (Non-RMBS)	55			1.9				1.1			0.4
	Total RMBS and Other ABS	$	974.8		$	9.8			$	29.3		$	3.2
		Fixed Rate/Floating Rate
		Amortized Cost							Unrealized Capital Losses
	March 31, 2015	< 20%			> 20%				< 20%			> 20%
	Fixed Rate	$	517.1		$	2.2			$	7.2		$	0.7
	Floating Rate	457.7			7.6				22.1			2.5
	Total	$	974.8		$	9.8			$	29.3		$	3.2
	(1) For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.
		Loan-to-Value Ratio
		Amortized Cost							Unrealized Capital Losses
	December 31, 2014	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS > 100%	$	5		$	—			$	0.3		$	—
	Non-agency RMBS > 90% - 100%	35.7			—				1.7			—
	Non-agency RMBS 80% - 90%	109			0.3				5.2			0.1
	Non-agency RMBS < 80%	291.5			4.6				15.8			1
	Agency RMBS	835.9			3.6				11.1			1.9
	Other ABS (Non-RMBS)	141.5			1.9				1.3			0.5
	Total RMBS and Other ABS	$	1,418.60		$	10.4			$	35.4		$	3.5
		Credit Enhancement Percentage
		Amortized Cost							Unrealized Capital Losses
	December 31, 2014	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS 10% +	$	325.7		$	4.5			$	17.9		$	0.9
	Non-agency RMBS > 5% - 10%	18.4			—				0.8			—
	Non-agency RMBS > 0% - 5%	51.1			—				0.9			—
	Non-agency RMBS 0%	46			0.4				3.4			0.2
	Agency RMBS	835.9			3.6				11.1			1.9
	Other ABS (Non-RMBS)	141.5			1.9				1.3			0.5
	Total RMBS and Other ABS	$	1,418.60		$	10.4			$	35.4		$	3.5
		Fixed Rate/Floating Rate
		Amortized Cost							Unrealized Capital Losses
	December 31, 2014	< 20%			> 20%				< 20%			> 20%
	Fixed Rate	$	817.2		$	2.3			$	12.3		$	0.7
	Floating Rate	601.4			8.1				23.1			2.8
	Total	$	1,418.60		$	10.4			$	35.4		$	3.5
	(1) For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.
Schedule of Mortgage Loans Real Estate and Valuation Allowance	The following table summarizes the Company's investment in mortgage loans as of the dates indicated:
		March 31, 2015			December 31, 2014
	Commercial mortgage loans	$	10,197.20		$	9,796.90
	Collective valuation allowance for losses	(2.7		)	(2.8		)
	Total net commercial mortgage loans	$	10,194.50		$	9,794.10
	The following table summarizes the activity in the allowance for losses for commercial mortgage loans for the periods indicated:
		March 31, 2015			December 31, 2014
	Collective valuation allowance for losses, balance at January 1	$	2.8		$	3.8
	Addition to (reduction of) allowance for losses	(0.1		)	(1.0		)
	Collective valuation allowance for losses, end of period	$	2.7		$	2.8
Impaired Financing Receivables	The carrying values and unpaid principal balances of impaired mortgage loans were as follows as of the dates indicated:
		March 31, 2015			December 31, 2014
	Impaired loans without allowances for losses	$	46.6		$	72.8
	Less: Allowances for losses on impaired loans	—			—
	Impaired loans, net	$	46.6		$	72.8
	Unpaid principal balance of impaired loans	$	49.1		$	75.3
Past Due Financing Receivables, Impaired Financing Receivables, Troubled Debt Restructurings on Financing Receivables, and Loans in Foreclosure	The following table presents information on restructured loans as of the dates indicated:
		March 31, 2015			December 31, 2014
	Troubled debt restructured loans	$	39.4		$	65.5
Interest Income Recognized on Impaired and Restructured Loans	The following table presents information on the average investment during the period in impaired loans and interest income recognized on impaired and troubled debt restructured loans for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Impaired loans, average investment during the period (amortized cost) (1)	$	59.7		$	94.2
	Interest income recognized on impaired loans, on an accrual basis (1)	0.9			1.3
	Interest income recognized on impaired loans, on a cash basis (1)	1			1
	Interest income recognized on troubled debt restructured loans, on an accrual basis	0.8			1.2
	(1) Includes amounts for Troubled debt restructured loans.
Loans Receivable, Grouped by Loan to Value and Debt Service Coverage Ratio	The following table presents the LTV ratios as of the dates indicated:
		March 31, 2015(1)			December 31, 2014(1)
	Loan-to-Value Ratio:
	0% - 50%	$	1,339.00		$	1,460.60
	> 50% - 60%	2,560.20			2,261.60
	> 60% - 70%	5,764.00			5,514.80
	> 70% - 80%	516			541.3
	> 80% and above	18			18.6
	Total Commercial mortgage loans	$	10,197.20		$	9,796.90
	(1) Balances do not include collective valuation allowance for losses.
	The following table presents the DSC ratios as of the dates indicated:
		March 31, 2015 (1)			December 31, 2014(1)
	Debt Service Coverage Ratio:
	Greater than 1.5x	$	7,245.40		$	7,096.20
	> 1.25x - 1.5x	1,699.70			1,392.10
	> 1.0x - 1.25x	871.1			906.7
	Less than 1.0x	333.4			385.9
	Commercial mortgage loans secured by land or construction loans	47.6			16
	Total Commercial mortgage loans	$	10,197.20		$	9,796.90
	(1) Balances do not include collective valuation allowance for losses.
Mortgage Loans by Geographic Location of Collateral	Properties collateralizing mortgage loans are geographically dispersed throughout the United States, as well as diversified by property type, as reflected in the following tables as of the dates indicated:
		March 31, 2015 (1)						December 31, 2014(1)
		Gross Carrying Value			% of			Gross Carrying Value			% of
					Total						Total
	Commercial Mortgage Loans by U.S. Region:
	Pacific	$	2,566.50		25.2	%		$	2,395.90		24.6	%
	South Atlantic	2,214.70			21.7	%		2,028.00			20.7	%
	Middle Atlantic	1,447.00			14.2	%		1,402.00			14.3	%
	West South Central	1,145.70			11.2	%		1,147.70			11.7	%
	East North Central	1,049.50			10.3	%		1,030.80			10.5	%
	Mountain	852.9			8.4	%		832.2			8.5	%
	West North Central	501.8			4.9	%		514			5.2	%
	East South Central	214.3			2.1	%		249.3			2.5	%
	New England	204.8			2	%		197			2	%
	Total Commercial mortgage loans	$	10,197.20		100	%		$	9,796.90		100	%
	(1) Balances do not include collective valuation allowance for losses.
Mortgage Loans by Property Type of Collateral
		March 31, 2015 (1)						December 31, 2014(1)
		Gross Carrying Value			% of			Gross Carrying Value			% of
					Total						Total
	Commercial Mortgage Loans by Property Type:
	Retail	$	3,539.20		34.6	%		$	3,408.40		34.8	%
	Industrial	2,177.70			21.4	%		2,283.00			23.3	%
	Apartments	1,762.30			17.3	%		1,680.70			17.2	%
	Office	1,274.70			12.5	%		1,246.50			12.7	%
	Hotel/Motel	387.3			3.8	%		382.7			3.9	%
	Mixed Use	303.7			3	%		346.5			3.5	%
	Other	752.3			7.4	%		449.1			4.6	%
	Total Commercial mortgage loans	$	10,197.20		100	%		$	9,796.90		100	%
	(1) Balances do not include collective valuation allowance for losses.
Mortgage Loans by Year of Origination	The following table sets forth the breakdown of mortgages by year of origination as of the dates indicated:
		March 31, 2015 (1)			December 31, 2014(1)
	Year of Origination:
	2015	$	698.8		$	—
	2014	1,939.50			1,940.90
	2013	2,113.30			2,137.50
	2012	1,632.50			1,642.80
	2011	1,499.10			1,533.50
	2010	249.1			251
	2009 and prior	2,064.90			2,291.20
	Total Commercial mortgage loans	$	10,197.20		$	9,796.90
	(1) Balances do not include collective valuation allowance for losses.
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table identifies the Company's credit-related and intent-related impairments included in the Condensed Consolidated Statements of Operations, excluding impairments included in Other comprehensive income (loss) by type for the periods indicated:
		Three Months Ended March 31,
		2015						2014
		Impairment			No. of			Impairment			No. of
					Securities						Securities
	U.S. corporate	$	1		3			$	0.4		1
	Foreign(1)	0.8			2			—			—
	Residential mortgage-backed	2.9			35			1.6			37
	Commercial mortgage-backed	—			—			0.2			2
	Other asset-backed	0.1			1			0.1			2
	Equity	0.1			1			1			2
	Total	$	4.9		42			$	3.3		44
	(1) Primarily U.S. dollar denominated.
Net Investment Income	The following table summarizes Net investment income for the periods indicated:
			Three Months Ended March 31,
			2015			2014
	Fixed maturities		$	996.4		$	984.8
	Equity securities, available-for-sale		2.7			3.8
	Mortgage loans on real estate		132.8			115.3
	Policy loans		28.2			28
	Short-term investments and cash equivalents		0.9			0.8
	Other		15.3			14.1
	Gross investment income		1,176.30			1,146.80
	Less: Investment expenses		1.7			1.2
	Net investment income		$	1,174.60		$	1,145.60
Realized Gain (Loss) on Investments	Net realized capital gains (losses) were as follows for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Fixed maturities, available-for-sale, including securities pledged	$	(0.9	)	$	13.7
	Fixed maturities, at fair value option	(18.2		)	(18.9		)
	Equity securities, available-for-sale	(0.1		)	17.1
	Derivatives	78.2			53.8
	Embedded derivative - fixed maturities	(1.8		)	(3.3		)
	Embedded derivative - product guarantees	(322.1		)	(255.1		)
	Other investments	0.4			2.1
	Net realized capital gains (losses)	$	(264.5	)	$	(190.6	)
	After-tax net realized capital gains (losses)	$	(172.0	)	$	(118.3	)
Gain (Loss) on Investments	Proceeds from the sale of fixed maturities and equity securities, available-for-sale and the related gross realized gains and losses, before tax, were as follows for the periods indicated:
			Three Months Ended March 31,
			2015			2014
	Proceeds on sales		$	1,115.70		$	1,494.90
	Gross gains		10.4			39.7
	Gross losses		12.4			19.8
Intent related impairment
Available-for-sale Securities, Including Securities Pledged [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table summarizes these intent impairments, which are also recognized in earnings, by type for the periods indicated:
		Three Months Ended March 31,
		2015						2014
		Impairment			No. of			Impairment			No. of
					Securities						Securities
	U.S. corporate	$	1		3			$	—		—
	Foreign(1)	0.8			2			—			—
	Residential mortgage-backed	0.6			2			—			—
	Commercial mortgage-backed	—			—			0.2			2
	Other asset-backed	0.1			1			—			—
	Equity	—			—			—			—
	Total	$	2.5		8			$	0.2		2
	(1) Primarily U.S. dollar denominated.
Credit related impairment
Available-for-sale Securities, Including Securities Pledged [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table identifies the amount of credit impairments on fixed maturities for which a portion of the OTTI loss was recognized in Other comprehensive income (loss) and the corresponding changes in such amounts for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Balance at January 1	$	86.8		$	102.8
	Additional credit impairments:
	On securities not previously impaired	—			1.1
	On securities previously impaired	2.3			1
	Reductions:
	Increase in cash flows	0.6			—
	Securities sold, matured, prepaid or paid down	4			3.8
	Balance at March 31	$	84.5		$	101.1
Duration
Available-for-sale Securities, Including Securities Pledged [Line Items]
Schedule of Unrealized Loss on Investments	Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, for instances in which fair value declined below amortized cost by greater than or less than 20% for consecutive months as indicated in the tables below, were as follows as of the dates indicated:
		Amortized Cost							Unrealized Capital Losses						Number of Securities
		< 20%			> 20%				< 20%			> 20%			< 20%		> 20%
	March 31, 2015
	Six months or less below amortized cost	$	3,412.50		$	121.4			$	99.4		$	30.9		341		12
	More than six months and twelve months or less below amortized cost	567			2.7				39			0.7			73		3
	More than twelve months below amortized cost	1,512.90			8.1				67.8			2.9			324		6
	Total	$	5,492.40		$	132.2			$	206.2		$	34.5		738		21
	December 31, 2014
	Six months or less below amortized cost	$	5,162.10		$	117.8			$	140.2		$	26.5		537		16
	More than six months and twelve months or less below amortized cost	324.3			—			*	19.7			—		*	68		1
	More than twelve months below amortized cost	4,237.20			8.6				134.1			3.1			493		7
	Total	$	9,723.60		$	126.4			$	294		$	29.6		1,098		24
	* Less than $0.1.
Market Sector (Type of Security)
Available-for-sale Securities, Including Securities Pledged [Line Items]
Schedule of Unrealized Loss on Investments	Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, by market sector for instances in which fair value declined below amortized cost by greater than or less than 20% were as follows as of the dates indicated:
		Amortized Cost							Unrealized Capital Losses						Number of Securities
		< 20%			> 20%				< 20%			> 20%			< 20%		> 20%
	March 31, 2015
	U.S. Treasuries	$	35.6		$	—			$	0.1		$	—		1		—
	U.S. Government agencies and authorities	—			—				—			—			—		—
	State, municipalities and political subdivision	30.8			1				0.4			0.3			6		1
	U.S. corporate securities	2,669.30			48.8				99.9			11.5			207		4
	Foreign	1,746.40			68.8				75.9			18.3			160		5
	Residential mortgage-backed	696.4			3.7				15.2			1.8			283		7
	Commercial mortgage-backed	35.5			3.8				0.6			1.2			8		1
	Other asset-backed	278.4			6.1				14.1			1.4			73		3
	Total	$	5,492.40		$	132.2			$	206.2		$	34.5		738		21
	December 31, 2014
	U.S. Treasuries	$	124.1		$	—			$	0.9		$	—		8		—
	U.S. Government agencies and authorities	6.4			—				—		*	—			1		—
	State, municipalities and political subdivision	44.1			1				0.2			0.3			9		1
	U.S. corporate securities	5,372.70			53.8				151.3			12.6			414		4
	Foreign	2,636.50			57.2				105.7			12.3			239		6
	Residential mortgage-backed	1,042.80			4				19.5			2.1			321		8
	Commercial mortgage-backed	121.2			4				0.5			0.9			17		1
	Other asset-backed	375.8			6.4				15.9			1.4			89		4
	Total	$	9,723.60		$	126.4			$	294		$	29.6		1,098		24
	* Less than $0.1.

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	The notional amounts and fair values of derivatives were as follows as of the dates indicated:
		March 31, 2015									December 31, 2014
		Notional			Asset			Liability			Notional		Asset		Liability
		Amount			Fair			Fair			Amount		Fair		Fair
					Value			Value					Value		Value
	Derivatives: Qualifying for hedge accounting(1)
	Cash flow hedges:
	Interest rate contracts	$	711.5		$	122.8		$	—		$	736	$	114.6	$	—
	Foreign exchange contracts	174.7			37.4			—			174.7		25.3		—
	Fair value hedges:
	Interest rate contracts	562.4			0.3			14.3			566.4		2.4		13.4
	Derivatives: Non-qualifying for hedge accounting(1)
	Interest rate contracts	64,592.60			1,508.50			737.5			66,474.00		1,108.00		563.2
	Foreign exchange contracts	1,280.90			58.7			45.4			1,373.10		45.3		26.8
	Equity contracts	21,482.20			359.5			136.6			21,165.70		483.1		209.9
	Credit contracts	4,221.00			39.8			40.5			4,221.00		40.9		36
	Embedded derivatives and Managed custody guarantees:
	Within fixed maturity investments	N/A			114			—			N/A		115.8		—
	Within annuity products	N/A			—			4,022.90			N/A		—		3,659.60
	Within reinsurance agreements	N/A			—			163.5			N/A		—		139.6
	Managed custody guarantees	N/A			—			0.8			N/A		—		—
	Total				$	2,241.00		$	5,161.50				$	1,935.40	$	4,648.50
	(1) Open derivative contracts are reported as Derivatives assets or liabilities on the Condensed Consolidated Balance Sheets at fair value.
	N/A - Not Applicable
Offsetting Assets and Liabilities	Although the Company has not elected to net its derivative exposures, the notional amounts and fair values of Over-The-Counter (“OTC”) and cleared derivatives excluding exchange traded contracts and forward contracts (To Be Announced mortgage-backed securities) are presented in the tables below as of the dates indicated:
		March 31, 2015
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	4,221.00		$	39.8		$	40.5
	Equity contracts	13,633.50			311.5			130.2
	Foreign exchange contracts	1,455.60			96.1			45.4
	Interest rate contracts	65,866.50			1,631.60			751.8
					2,079.00			967.9
	Counterparty netting(1)				(812.6		)	(812.6		)
	Cash collateral netting(1)				(1,033.5		)	(59.8		)
	Securities collateral netting(1)				(70.8		)	(53.0		)
	Net receivables/payables				$	162.1		$	42.5
	(1) Represents the netting of receivable balances with payable balances, net of collateral, for the same counterparty under eligible netting agreements.
		December 31, 2014
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	4,221.00		$	40.9		$	36
	Equity contracts	13,576.10			378.4			201.7
	Foreign exchange contracts	1,547.80			70.6			26.8
	Interest rate contracts	67,776.40			1,225.00			576.6
					1,714.90			841.1
	Counterparty netting(1)				(721.3		)	(721.3		)
	Cash collateral netting(1)				(661.1		)	(35.9		)
	Securities collateral netting(1)				(158.9		)	(46.9		)
	Net receivables/payables				$	173.6		$	37
	(1) Represents the netting of receivable balances with payable balances, net of collateral, for the same counterparty under eligible netting agreements.
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	Net realized gains (losses) on derivatives were as follows for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Derivatives: Qualifying for hedge accounting(1)
	Cash flow hedges:
	Interest rate contracts	$	0.2		$	0.2
	Foreign exchange contracts	0.5			0.4
	Fair value hedges:
	Interest rate contracts	(4.7		)	(5.2		)
	Derivatives: Non-qualifying for hedge accounting(2)
	Interest rate contracts	237.1			204.2
	Foreign exchange contracts	66			(1.7		)
	Equity contracts	(217.8		)	(144.9		)
	Credit contracts	(3.1		)	0.8
	Embedded derivatives and Managed custody guarantees:
	Within fixed maturity investments(2)	(1.8		)	(3.3		)
	Within annuity products(2)	(321.3		)	(255.1		)
	Within reinsurance agreements(3)	(23.9		)	(16.7		)
	Managed custody guarantees(2)	(0.8		)	—
	Total	$	(269.6	)	$	(221.3	)
	(1) Changes in value for effective fair value hedges are recorded in Other net realized capital gains (losses). Changes in fair value upon disposal for effective cash flow hedges are amortized through Net investment income and the ineffective portion is recorded in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations. For the three months ended March 31, 2015 and 2014, ineffective amounts were immaterial.
	(2) Changes in value are included in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
	(3) Changes in value are included in Policyholder benefits in the Condensed Consolidated Statements of Operations.

Fair_Value_Measurements_exclud1

Fair Value Measurements (excluding Consolidated Investment Entities) (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table presents the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of March 31, 2015:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	3,112.30			$	668.9			$	—		$	3,781.20
	U.S. Government agencies and authorities	—				442.1				—			442.1
	State, municipalities and political subdivisions	—				798.1				—			798.1
	U.S. Corporate securities	—				41,249.70				1,109.60			42,359.30
	Foreign(1)	—				16,210.50				502.5			16,713.00
	Residential mortgage-backed securities	—				6,451.20				109.2			6,560.40
	Commercial mortgage-backed securities	—				4,185.90				—			4,185.90
	Other asset-backed securities	—				1,453.10				9.3			1,462.40
	Total fixed maturities, including securities pledged	3,112.30				71,459.50				1,730.60			76,302.40
	Equity securities, available-for-sale	225.4				—				58.2			283.6
	Derivatives:
	Interest rate contracts	—				1,631.60				—			1,631.60
	Foreign exchange contracts	—				96.1				—			96.1
	Equity contracts	48				228				83.5			359.5
	Credit contracts	—				28.6				11.2			39.8
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	4,337.00				141.6				6			4,484.60
	Assets held in separate accounts	101,772.70				5,266.10				0.6			107,039.40
	Total assets	$	109,495.40			$	78,851.50			$	1,890.10		$	190,237.00
	Percentage of Level to total	57.6		%		41.4		%		1		%	100		%
	Liabilities:
	Derivatives:
	Annuity product guarantees:
	FIA	$	—			$	—			$	2,015.60		$	2,015.60
	GMAB/GMWB/GMWBL(2)	—				—				1,860.00			1,860.00
	Stabilizer and MCGs	—				—				148.1			148.1
	Other derivatives:
	Interest rate contracts	—				751.8				—			751.8
	Foreign exchange contracts	—				45.4				—			45.4
	Equity contracts	6.3				130.3				—			136.6
	Credit contracts	—				18.4				22.1			40.5
	Embedded derivative on reinsurance	—				163.5				—			163.5
	Total liabilities	$	6.3			$	1,109.40			$	4,045.80		$	5,161.50
	(1) Primarily U.S. dollar denominated.
	(2) Guaranteed minimum accumulation benefits ("GMAB"), Guaranteed minimum withdrawal benefits (“GMWB”) and Guaranteed minimum withdrawal benefits with life payouts (“GMWBL”).
	The following table presents the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of December 31, 2014:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	3,262.00			$	642			$	—		$	3,904.00
	U.S. Government agencies and authorities	—				435.9				—			435.9
	State, municipalities and political subdivisions	—				694.4				—			694.4
	U.S. corporate securities	—				39,658.20				1,082.60			40,740.80
	Foreign(1)	—				15,995.50				448.7			16,444.20
	Residential mortgage-backed securities	—				6,562.60				94.2			6,656.80
	Commercial mortgage-backed securities	—				4,166.20				22			4,188.20
	Other asset-backed securities	—				1,585.00				10.1			1,595.10
	Total fixed maturities, including securities pledged	3,262.00				69,739.80				1,657.60			74,659.40
	Equity securities, available-for-sale	215.5				—				56.3			271.8
	Derivatives:
	Interest rate contracts	—				1,225.00				—			1,225.00
	Foreign exchange contracts	—				70.6				—			70.6
	Equity contracts	104.7				296.6				81.8			483.1
	Credit contracts	—				30.9				10			40.9
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	4,924.80				138.5				6			5,069.30
	Assets held in separate accounts	100,692.40				5,313.10				2.3			106,007.80
	Total assets	$	109,199.40			$	76,814.50			$	1,814.00		$	187,827.90
	Percentage of Level to total	58.1		%		40.9		%		1		%	100		%
	Liabilities:
	Derivatives:
	Annuity product guarantees:
FIA	$	—			$	—			$	1,970.00		$	1,970.00
GMAB/GMWB/GMWBL	—				—				1,586.70			1,586.70
Stabilizer and MCGs	—				—				102.9			102.9
Other derivatives:
Interest rate contracts	—				576.6				—			576.6
Foreign exchange contracts	—				26.8				—			26.8
Equity contracts	8.2				201.7				—			209.9
Credit contracts	—				16.3				19.7			36
Embedded derivative on reinsurance	—				139.6				—			139.6
Total liabilities	$	8.2			$	961			$	3,679.30		$	4,648.50
(1)Primarily U.S. dollar denominated.
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation
	The following table summarizes the change in fair value of the Company’s Level 3 assets and liabilities and transfers in and out of Level 3 for the three months ended March 31, 2015:
		Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value as of March 31			Change In
		as of				Realized/Unrealized																			into		out of						Unrealized
		1-Jan				Gains (Losses)																			Level 3(3)		Level 3(3)						Gains
						Included in:																											(Losses)
																																	Included in
						Net				OCI																							Earnings(4)
						Income
	Fixed maturities, including securities pledged:
	U.S. Government agencies and authorities	$	—			$	—			$	—		$	—		$	—		$	—		$	—		$	—	$	—		$	—		$	—
	U.S. corporate securities	1,082.60				0.1				2.1			85.1			—			—			(109.9		)	49.6		—			1,109.60			0.1
	Foreign(1)	448.7				0.6				(1.0		)	12.2			—			—			(11.7		)	53.7		—			502.5			—
	Residential mortgage-backed securities	94.2				(2.5		)		(0.2		)	5.3			—			—			(0.1		)	12.5		—			109.2			(2.5		)
	Commercial mortgage-backed securities	22				—				—			—			—			—			—			—		(22.0		)	—			—
	Other asset-backed securities	10.1				—				—			—			—			—			(0.8		)	—		—			9.3			—
	Total fixed maturities including securities pledged	1,657.60				(1.8		)		0.9			102.6			—			—			(122.5		)	115.8		(22.0		)	1,730.60			(2.4		)
	Equity securities, available-for-sale	56.3				(0.1		)		2			—			—			—			—			—		—			58.2			(0.1		)
	Derivatives:
	Product guarantees:
	FIA(2)	(1,970.0		)		(45.7		)		—			—			(40.5		)	—			40.6			—		—			(2,015.6		)	—
	GMAB/GMWB/GMWBL(2)	(1,586.7		)		(232.3		)		—			—			(41.1		)	—			0.1			—		—			(1,860.0		)	—
	Stabilizer and MCGs(2)	(102.9		)		(44.1		)		—			—			(1.1		)	—			—			—		—			(148.1		)	—
	Other derivatives, net	72.1				0.4				—			8.3			—			—			(8.2		)	—		—			72.6			0.6
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	6				—				—			—			—			—			—			—		—			6			—
	Assets held in separate accounts(5)	2.3				—				—			—			—			—			—			—		(1.7		)	0.6			—
	(1) Primarily U.S. dollar denominated.
	(2) All gains and losses on Level 3 liabilities are classified as realized gains (losses) for the purpose of this disclosure because it is impracticable to track realized and unrealized gains (losses) separately on a contract-by contract basis. These amounts are included in Other net realized gains (losses) in the Condensed Consolidated Statements of Operations.
	(3) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
	(4) For financial instruments still held as of March 31, amounts are included in Net investment income and Total net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
	(5) The investment income and realized gains (losses) and change in unrealized gains (losses) included in net income for separate account assets are offset by an equal amount for separate account liabilities, which results in a net zero impact on Net income (loss) for the Company.
	The following table summarizes the change in fair value of the Company’s Level 3 assets and liabilities and transfers in and out of Level 3 for the three months ended March 31, 2014:
		Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value as of March 31			Change In
		as of				Realized/Unrealized																			into		out of						Unrealized
		1-Jan				Gains (Losses)																			Level 3(3)		Level 3(3)						Gains
						Included in:																											(Losses)
																																	Included in
						Net				OCI																							Earnings(4)
						Income
	Fixed maturities, including securities pledged:
	U.S. Government agencies and authorities	$	14.4			$	—			$	—		$	—		$	—		$	—		$	(0.2	)	$	—	$	(7.0	)	$	7.2		$	—
	U.S. corporate securities	456.5				—				4.5			108			—			—			(10.1		)	12.8		(3.0		)	568.7			—
	Foreign(1)	154.3				—				1.6			—			—			—			(0.2		)	—		(25.0		)	130.7			—
	Residential mortgage-backed securities	98.6				(2.8		)		0.8			—			—			—			(0.6		)	8.8		(0.4		)	104.4			(2.8		)
	Commercial mortgage-backed securities	—				—				—			24.9			—			—			—			—		—			24.9			—
	Other asset-backed securities	59.2				3.1				(2.5		)	—			—			—			(17.6		)	—		—			42.2			1
	Total fixed maturities including securities pledged	783				0.3				4.4			132.9			—			—			(28.7		)	21.6		(35.4		)	878.1			(1.8		)
	Equity securities, available-for-sale	55.3				(0.9		)		2.8			—			—			(0.1		)	—			—		—			57.1			(0.9		)
	Derivatives:
	Product guarantees:
	FIA(2)	(1,736.7		)		(42.4		)		—			—			(50.3		)	—			21.4			—		—			(1,808.0		)	—
	GMAB/GMWB/GMWBL(2)	(908.9		)		(195.9		)		—			—			(38.6		)	—			0.1			—		—			(1,143.3		)	—
	Stabilizer and MCGs(2)	—				(16.8		)		—			—			(1.2		)	—			—			—		—			(18.0		)	—
	Other derivatives, net	80.3				1				—			7.4			—			—			(21.6		)	—		—			67.1			(12.7		)
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	—				—				—			—			—			—			—			—		—			—			—
	Assets held in separate accounts(5)	13.1				—				—			5.8			—			(1.0		)	—			—		—			17.9			—
	(1) Primarily U.S. dollar denominated.
	(2) All gains and losses on Level 3 liabilities are classified as realized gains (losses) for the purpose of this disclosure because it is impracticable to track realized and unrealized gains (losses) separately on a contract-by contract basis. These amounts are included in Other net realized gains (losses) in the Condensed Consolidated Statements of Operations.
	(3) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
	(4) For financial instruments still held as of March 31, amounts are included in Net investment income and Total net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
	(5) The investment income and realized gains (losses) and change in unrealized gains (losses) included in net income for separate account assets are offset by an equal amount for separate account liabilities, which results in a net zero impact on Net income (loss) for the Company.
Fair Value Inputs, Assets, Quantitative Information	The following table presents the unobservable inputs for Level 3 fair value measurements as of March 31, 2015:
			Range(1)
	Unobservable Input		GMWB / GMWBL			GMAB			FIA			Stabilizer / MCG
	Long-term equity implied volatility		15% to 25%			15% to 25%			—			—
	Interest rate implied volatility		0.2% to 18%			0.2% to 18%			—			0.2% to 7.8%
	Correlations between:
	Equity Funds		49% to 98%			49% to 98%			—			—
	Equity and Fixed Income Funds		-38% to 62%			-38% to 62%			—			—
	Interest Rates and Equity Funds		-32% to -3%			-32% to -3%			—			—
	Nonperformance risk		0.14% to 1.10%			0.14% to 1.10%			0.14% to 1.10%			0.14% to 1.10%
	Actuarial Assumptions:
	Benefit Utilization		85% to 100%		(2)	—			—			—
	Partial Withdrawals		0% to 10%			0% to 10%			0% to 5 %			—
	Lapses		0.08% to 24%		(3)(4)	0.08% to 31%		(3)(4)	0% to 60%		(3)	0% to 50%	(5)
	Policyholder Deposits(6)		—			—			—			0% to 65%	(5)
	Mortality		—		(7)	—		(7)	—		(8)	—
	(1)	Represents the range of reasonable assumptions that management has used in its fair value calculations.
	(2) Those policyholders who have elected systematic withdrawals are assumed to continue taking withdrawals. As a percent of account value, 35% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, the Company assumes that 85% will begin systematic withdrawals after a delay period. The utilization function varies by policyholder age and policy duration. Interactions with lapse and mortality also affect utilization. The utilization rate for GMWB and GMWBL tends to be lower for younger contract owners and contracts that have not reached their maximum accumulated GMWB and GMWBL benefit amount. There is also a lower utilization rate, though indirectly, for contracts that are less "in the money" (i.e., where the notional benefit amount is in excess of the account value) due to higher lapses. Conversely, the utilization rate tends to be higher for contract owners near or beyond retirement age and contracts that have accumulated their maximum GMWB or GMWBL benefit amount. There is also a higher utilization rate, though indirectly, for contracts which are highly "in the money." The chart below provides the GMWBL account value by current age group and average expected delay times from the associated attained age group as of March 31, 2015 (account value amounts are in $ billions).
			Account Values
	Attained Age Group		In the Money				Out of the Money				Total			Average Expected Delay (Years)*
	< 60		$	2.3			$	0.5			$	2.8		9.4
	60-69		6				1.1				7.1			4.8
	70+		5.2				0.6				5.8			3
			$	13.5			$	2.2			$	15.7		5.6
	* For population expected to withdraw in future. Excludes policies taking systematic withdraws and 15% of policies the Company assumes will never withdraw.
	(3) Lapse rates tend to be lower during the contractual surrender charge period and higher after the surrender charge period ends; the highest lapse rates occur in the year immediately after the end of the surrender charge period.
	(4) The Company makes dynamic adjustments to lower the lapse rates for contracts that are more “in the money.” The table below shows an analysis of policy account values according to whether they are in or out of the surrender charge period and to whether they are “in the money” or “out of the money” as of March 31, 2015 (account value amounts are in $ billions).
				GMAB						GMWB/GMWBL
		Moneyness		Account Value				Lapse Range		Account Value			Lapse Range
	During Surrender Charge Period
		In the Money**		$	—		*	0.08% to 8.2%		$	6.3		0.08% to 6.3%
		Out of the Money		—			*	0.41% to 12%		1.4			0.36% to 7%
	After Surrender Charge Period
		In the Money**		$	—		*	2.5% to 21%		$	7.2		1.7% to 21%
		Out of the Money		0.1				12.3% to 31%		1.5			5.6% to 24%
	* Less than $0.1.
	** The low end of the range corresponds to policies that are highly “in the money.” The high end of the range corresponds to the policies that are close to zero in terms of “in the moneyness.”
	(5)	Stabilizer contracts with recordkeeping agreements have a different range of lapse and policyholder deposit assumptions from Stabilizer (Investment only) and MCG contracts as shown below:
		Percentage of Plans			Overall Range of Lapse Rates		Range of Lapse Rates for 85% of Plans		Overall Range of Policyholder Deposits		Range of Policyholder Deposits for 85% of Plans
	Stabilizer (Investment Only) and MCG Contracts	88	%		0-25%		0-15%		0-35%		0-15%
	Stabilizer with Recordkeeping Agreements	12	%		0-50%		0-25%		0-65%		0-30%
	Aggregate of all plans	100	%		0-50%		0-25%		0-65%		0-30%
	(6)	Measured as a percentage of assets under management or assets under administration.
	(7)	The mortality rate is based on the Annuity 2000 Basic table with mortality improvements.
	(8)	The mortality rate is based on the 2012 Individual Annuity Mortality Basic table with mortality improvements.
	The following table presents the unobservable inputs for Level 3 fair value measurements as of December 31, 2014:
			Range(1)
	Unobservable Input		GMWB / GMWBL			GMAB			FIA			Stabilizer / MCG
	Long-term equity implied volatility		15% to 25%			15% to 25%			—			—
	Interest rate implied volatility		0.2% to 16%			0.2% to 16%			—			0.2% to 7.6%
	Correlations between:
	Equity Funds		49% to 98%			49% to 98%			—			—
	Equity and Fixed Income Funds		-38% to 62%			-38% to 62%			—			—
	Interest Rates and Equity Funds		-32% to -4%			-32% to -4%			—			—
	Nonperformance risk		0.13% to 1.10%			0.13% to 1.10%			0.13% to 1.10%			0.13% to 1.10%
	Actuarial Assumptions:
	Benefit Utilization		85% to 100%		(2)	—			—			—
	Partial Withdrawals		0% to 10%			0% to 10%			0% to 5 %			—
	Lapses		0.08% to 24%		(3)(4)	0.08% to 31%		(3)(4)	0% to 60%		(3)	0% to 50%	(5)
	Policyholder Deposits(6)		—			—			—			0% to 65%	(5)
	Mortality		—		(7)	—		(7)	—		(8)	—
	(1)	Represents the range of reasonable assumptions that management has used in its fair value calculations.
	(2)	Those policyholders who have elected systematic withdrawals are assumed to continue taking withdrawals. As a percent of account value, 33% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, the Company assumes that 85% will begin systematic withdrawals after a delay period. The utilization function varies by policyholder age and policy duration. Interactions with lapse and mortality also affect utilization. The utilization rate for GMWB and GMWBL tends to be lower for younger contract owners and contracts that have not reached their maximum accumulated GMWB and GMWBL benefit amount. There is also a lower utilization rate, though indirectly, for contracts that are less “in the money” (i.e., where the notional benefit amount is in excess of the account value) due to higher lapses. Conversely, the utilization rate tends to be higher for contract owners near or beyond retirement age and contracts that have accumulated their maximum GMWB or GMWBL benefit amount. There is also a higher utilization rate, though indirectly, for contracts which are highly “in the money.” The chart below provides the GMWBL account value by current age group and average expected delay times from the associated attained age group as of December 31, 2014 (account value amounts are in $ billions).
			Account Values
Attained Age Group		In the Money				Out of the Money				Total			Average Expected Delay (Years)*
< 60		$	2.4			$	0.5			$	2.9		9.5
60-69		6.2				1				7.2			4.9
70+		5.2				0.5				5.7			3.1
		$	13.8			$	2			$	15.8		5.8
* For population expected to withdraw in future. Excludes policies taking systematic withdraws and 15% of policies the Company assumes will never withdraw.
-3	Lapse rates tend to be lower during the contractual surrender charge period and higher after the surrender charge period ends; the highest lapse rates occur in the year immediately after the end of the surrender charge period.
(4) The Company makes dynamic adjustments to lower the lapse rates for contracts that are more “in the money.” The table below shows an analysis of policy account values according to whether they are in or out of the surrender charge period and to whether they are “in the money” or “out of the money” as of December 31, 2014 (account value amounts are in $ billions).
			GMAB						GMWB/GMWBL
	Moneyness		Account Value				Lapse Range		Account Value			Lapse Range
During Surrender Charge Period
	In the Money**		$	—		*	0.08% to 8.2%		$	6.7		0.08% to 6.3%
	Out of the Money		—			*	0.41% to 12%		1.2			0.36% to 7%
After Surrender Charge Period
	In the Money**		$	—		*	2.5% to 21%		$	7.2		1.7% to 21%
	Out of the Money		0.1				12.3% to 31%		1.4			5.6% to 24%
* Less than $0.1.
** The low end of the range corresponds to policies that are highly “in the money.” The high end of the range corresponds to the policies that are close to zero in terms of “in the moneyness.”
(5)	Stabilizer contracts with recordkeeping agreements have a different range of lapse and policyholder deposit assumptions from Stabilizer (Investment only) and MCG contracts as shown below:
	Percentage of Plans			Overall Range of Lapse Rates		Range of Lapse Rates for 85% of Plans		Overall Range of Policyholder Deposits		Range of Policyholder Deposits for 85% of Plans
Stabilizer (Investment Only) and MCG Contracts	87	%		0-30%		0-15%		0-45%		0-15%
Stabilizer with Recordkeeping Agreements	13	%		0-50%		0-25%		0-65%		0-25%
Aggregate of all plans	100	%		0-50%		0-25%		0-65%		0-25%
(6)	Measured as a percentage of assets under management or assets under administration.
(7)	The mortality rate is based on the Annuity 2000 Basic table with mortality improvements.
(8)	The mortality rate is based on the 2012 Individual Annuity Mortality Basic table with mortality improvements.
Fair Value, by Balance Sheet Grouping	The carrying values and estimated fair values of the Company’s financial instruments as of the dates indicated:
		March 31, 2015								December 31, 2014
		Carrying				Fair				Carrying			Fair
		Value				Value				Value			Value
	Assets:
	Fixed maturities, including securities pledged	$	76,302.40			$	76,302.40			$	74,659.40		$	74,659.40
	Equity securities, available-for-sale	283.6				283.6				271.8			271.8
	Mortgage loans on real estate	10,194.50				10,644.90				9,794.10			10,286.60
	Policy loans	2,074.10				2,074.10				2,104.00			2,104.00
	Limited partnerships/corporations	375.5				375.5				363.2			363.2
	Cash, cash equivalents, short-term investments and short-term investments under securities loan agreements	4,484.60				4,484.60				5,069.30			5,069.30
	Derivatives	2,127.00				2,127.00				1,819.60			1,819.60
	Other investments	97				107.1				110.3			120.4
	Assets held in separate accounts	107,039.40				107,039.40				106,007.80			106,007.80
	Liabilities:
	Investment contract liabilities:
	Funding agreements without fixed maturities and deferred annuities(1)	50,411.10				56,725.70				49,850.90			55,171.40
	Funding agreements with fixed maturities and guaranteed investment contracts	1,564.00				1,543.00				1,593.00			1,564.80
	Supplementary contracts, immediate annuities and other	2,612.10				2,825.30				2,535.30			2,706.20
	Derivatives:
	Annuity product guarantees:
	FIA	2,015.60				2,015.60				1,970.00			1,970.00
	GMAB/GMWB/GMWBL	1,860.00				1,860.00				1,586.70			1,586.70
	Stabilizer and MCGs	148.1				148.1				102.9			102.9
	Other derivatives	974.3				974.3				849.3			849.3
	Long-term debt	3,516.00				3,968.50				3,515.70			3,875.40
	Embedded derivatives on reinsurance	163.5				163.5				139.6			139.6
	(1) Certain amounts included in Funding agreements without fixed maturities and deferred annuities are also reflected within the Annuity product guarantees section of the table above.
	The following table summarizes the fair value hierarchy levels of consolidated investment entities as of March 31, 2015:
		Level 1				Level 2				Level 3			Total
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	198.2			$	—			$	—		$	198.2
	Corporate loans, at fair value using the fair value option	—				7,021.10				19			7,040.10
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	101.5				—				—			101.5
	Limited partnerships/corporations, at fair value	—				1,161.30				2,691.20			3,852.50
	Total assets, at fair value	$	299.7			$	8,182.40			$	2,710.20		$	11,192.30
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—			$	—			$	6,408.90		$	6,408.90
	Total liabilities, at fair value	$	—			$	—			$	6,408.90		$	6,408.90
	The following table summarizes the fair value hierarchy levels of consolidated investment entities as of December 31, 2014:
		Level 1				Level 2				Level 3			Total
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	605.9			$	—			$	—		$	605.9
	Corporate loans, at fair value using the fair value option	—				6,773.90				19.2			6,793.10
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	104.5				—				—			104.5
	Limited partnerships/corporations, at fair value	—				1,035.60				2,691.70			3,727.30
	Total assets, at fair value	$	710.4			$	7,809.50			$	2,710.90		$	11,230.80
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—			$	—			$	6,838.10		$	6,838.10
	Total liabilities, at fair value	$	—			$	—			$	6,838.10		$	6,838.10

Deferred_Policy_Acquisition_Co1

Deferred Policy Acquisition Costs and Value of Business Acquired (Tables)	3 Months Ended
	Mar. 31, 2015
Deferred Policy Acquisition Costs and Value of Business Acquired [Abstract]
Deferred Policy Acquisition Costs and Value of Business Acquired	Activity within DAC and VOBA was as follows for the periods indicated:
		DAC			VOBA			Total
	Balance as of January 1, 2015	$	3,890.90		$	680		$	4,570.90
	Deferrals of commissions and expenses	86.5			2.6			89.1
	Amortization:
	Amortization	(159.8		)	(37.5		)	(197.3		)
	Interest accrued(1)	57.8			21.4			79.2
	Net amortization included in Condensed Consolidated Statements of Operations	(102.0		)	(16.1		)	(118.1		)
	Change in unrealized capital gains/losses on available-for-sale securities	(173.5		)	(124.1		)	(297.6		)
	Balance as of March 31, 2015	$	3,701.90		$	542.4		$	4,244.30
		DAC			VOBA			Total
	Balance as of January 1, 2014	$	4,316.10		$	1,035.50		$	5,351.60
	Deferrals of commissions and expenses	91.6			3.4			95
	Amortization:
	Amortization	(159.6		)	(47.3		)	(206.9		)
	Interest accrued(1)	58.3			22.5			80.8
	Net amortization included in Condensed Consolidated Statements of Operations	(101.3		)	(24.8		)	(126.1		)
	Change in unrealized capital gains/losses on available-for-sale securities	(293.3		)	(166.4		)	(459.7		)
	Balance as of March 31, 2014	$	4,013.10		$	847.7		$	4,860.80
	(1) Interest accrued at the following rates for DAC: 1.5% to 7.5% during 2015 and 0.6% to 7.4% during 2014. Interest accrued at the following rates for VOBA: 4.3% to 7.5% during 2015 and 4.1% to 7.5% during 2014.

ShareBased_Incentive_Compensat1

Share-Based Incentive Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	The following table summarizes pre-tax share-based compensation costs, which includes costs related to awards granted under the Omnibus Plans, Director Plan, Phantom Plan and ING Group share-based compensation plans for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	RSUs(1)	$	12.7		$	7
	RSUs - Deal incentive awards	2.1			5.6
	PSU awards(1)	17.1			19.2
	Phantom Plan	2.3			0.3
	Total	$	34.2		$	32.1
	Income tax benefit(2)	12			—
	Share-based compensation	$	22.2		$	32.1
	(1) This table includes compensation costs of $0.7 and $7.9 for the three months ended March 31, 2015, related to ING Group RSU and PSU awards, respectively. In addition, this table includes compensation costs of $1.8 and $10.6 for the three months ended March 31, 2014, related to ING Group RSU and PSU awards, respectively.
	(2) The Company recognized no income tax benefit due to valuation allowances for the three months ended March 31, 2014. See the Income Taxes Note to these Condensed Consolidated Financial Statements for additional information.
Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity	The following table summarizes the number of awards under the Omnibus Plans for the period indicated:
		RSUs					RSUs-Deal Incentive Awards					PSU Awards
	(awards in millions)	Number of Awards		Weighted Average Grant Date Fair Value			Number of Awards			Weighted Average Grant Date Fair Value		Number of Awards			Weighted Average Grant Date Fair Value
	Outstanding as of December 31, 2014	3.2		$	28.8		—			$	—	0.6			$	37.01
	Adjustment for PSU performance factor	N/A		N/A			N/A			N/A		0.2			37.01
	Granted	1.3		44.21			0.1			30.03		0.9			44.22
	Vested	(0.8	)	26.25			(0.1	)	(1)	30.03		(0.8	)		37.01
	Forfeited	(0.1	)	29.37			—			—		—		*	42.09
	Outstanding as of March 31, 2015	3.6		$	34.66		—			$	—	0.9			$	44.22
	* Less than 0.1.

Shareholders_Equity_and_Earnin1

Shareholders' Equity and Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Schedule of Common Stock Outstanding Roll Forward	The following table presents the rollforward of common shares used in calculating the weighted average shares utilized in the basic earnings per common share calculation for the periods indicated:
		Common Shares
		2015							2014
	(shares in millions)	Issued		Held in Treasury			Outstanding		Issued	Held in Treasury	Outstanding
	Common shares, balance as of December 31, 2014	263.7		21.8			241.9		261.8	0.1	261.7
	Common shares issued	—		—			—		—	—	—
	Common shares acquired - share repurchase	—		14.3			(14.3	)	—	7.5	(7.5	)
	Share-based compensation	1.5		0.1			1.4		0.8	0.3	0.5
	Common shares, balance as of March 31, 2015	265.2		36.2			229		262.6	7.9	254.7
Schedule of Earnings Per Share, Basic and Diluted	The following table presents a reconciliation of Net income (loss) and shares used in calculating basic and diluted net income (loss) per common share for the periods indicated:
	(in millions, except for per share data)	Three Months Ended March 31,
	Earnings	2015			2014
	Net income (loss) available to common shareholders:
	Net income (loss)	$	211.6		$	271.6
	Less: Net income (loss) attributable to noncontrolling interest	26.1			13.5
	Net income (loss) available to common shareholders	$	185.5		$	258.1
	Weighted average common shares outstanding
	Basic	238.5			261.1
	Dilutive Effects:(1) (2)
	RSUs	1.7			1
	RSUs - Deal incentive awards	—			0.8
	PSU awards	0.5			0.6
	Diluted	240.7			263.5
	Net income (loss) available to common shareholders per common share
	Basic	$	0.78		$	0.99
	Diluted	0.77			0.98
	(1) For the three months ended March 31, 2015, weighted average shares used for calculating basic and diluted earnings per share excludes the dilutive impact of warrants, as the inclusion of this equity instrument would be antidilutive to the earnings per share calculation due to “out of the moneyness” in the periods presented.
	(2) For the three months ended March 31, 2014, the Company had no antidilutive weighted average common shares affecting the earnings per share calculation.

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income (Loss)
	Shareholders' equity included the following components of Accumulated Other Comprehensive Income (“AOCI”) as of the dates indicated:
		March 31,
		2015				2014
	Fixed maturities, net of OTTI	$	6,777.30			$	4,759.70
	Equity securities, available-for-sale	32.6				31.8
	Derivatives	262.7				158
	DAC/VOBA adjustment on available-for-sale securities	(2,138.2		)		(1,514.7		)
	Sales inducements adjustment on available-for-sale securities	(86.0		)		(74.8		)
	Other	(31.5		)		(28.0		)
	Unrealized capital gains (losses), before tax	4,816.90				3,332.00
	Deferred income tax asset (liability)	(1,324.9		)		(802.7		)
	Net unrealized capital gains (losses)	3,492.00				2,529.30
	Pension and other postretirement benefits liability, net of tax	39.2				48.2
	AOCI	$	3,531.20			$	2,577.50
Schedule of Amounts Recognized in Other Comprehensive Income	Changes in AOCI, including the reclassification adjustments recognized in the Condensed Consolidated Statements of Operations were as follows for the periods indicated:
		Three Months Ended March 31, 2015
		Before-Tax Amount				Income Tax			After-Tax Amount
	Available-for-sale securities:
	Fixed maturities	$	926			$	(323.5	)	$	602.5
	Equity securities	2.5				(0.9		)	1.6
	Other	0.1				—			0.1
	OTTI	5.7				(2.0		)	3.7
	Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statement of Operations	1				(0.4		)	0.6
	DAC/VOBA	(297.6		)	(1)	104.2			(193.4		)
	Sales inducements	(10.8		)		3.8			(7.0		)
	Change in unrealized gains/losses on available-for-sale securities	626.9				(218.8		)	408.1
	Derivatives:
	Derivatives	37.1			(2)	(13.0		)	24.1
	Adjustments related to effective cash flow hedges for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	(3.9		)		1.4			(2.5		)
	Change in unrealized gains/losses on derivatives	33.2				(11.6		)	21.6
	Pension and other postretirement benefits liability:
	Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statement of Operations	(3.4		)		1.2			(2.2		)
	Change in pension and other postretirement benefits liability	(3.4		)		1.2			(2.2		)
	Change in Other comprehensive income (loss)	$	656.7			$	(229.2	)	$	427.5
	(1) See the Deferred Policy Acquisition Costs and Value of Business Acquired Note to these Condensed Consolidated Financial Statements for additional information.
	(2) See the Derivative Financial Instruments Note to these Condensed Consolidated Financial Statements for additional information.
		Three Months Ended March 31, 2014
		Before-Tax Amount				Income Tax			After-Tax Amount
	Available-for-sale securities:
	Fixed maturities	$	1,588.40			$	(555.6	)	$	1,032.80
	Equity securities	(16.0		)		4.2			(11.8		)
	Other	(0.3		)		0.1			(0.2		)
	OTTI	15.6				(5.5		)	10.1
	Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statement of Operations	(8.8		)		3.1			(5.7		)
	DAC/VOBA	(459.7		)	(1)	160.9			(298.8		)
	Sales inducements	(16.7		)		5.8			(10.9		)
	Change in unrealized gains/losses on available-for-sale securities	1,102.50				(387.0		)	715.5
	Derivatives:
	Derivatives	24.6			(2)	(8.6		)	16
	Adjustments related to effective cash flow hedges for amounts recognized in Net investment income in the Condensed Consolidated Statement of Operations	(1.4		)		0.5			(0.9		)
	Change in unrealized gains/losses on derivatives	23.2				(8.1		)	15.1
	Pension and other postretirement benefits liability:
	Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statement of Operations	(3.4		)		1.2			(2.2		)
	Change in pension and other postretirement benefits liability	(3.4		)		1.2			(2.2		)
	Change in Other comprehensive income (loss)	$	1,122.30			$	(393.9	)	$	728.4
	(1) See the Deferred Policy Acquisition Costs and Value of Business Acquired Note to these Condensed Consolidated Financial Statements for additional information.
	(2) See the Derivative Financial Instruments Note to these Condensed Consolidated Financial Statements for additional information.

Income_Taxes_Tables

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation	Income taxes were different from the amount computed by applying the federal income tax rate to Income (loss) before income taxes for the following reasons for the periods indicated, as expressed in percentages:
		Three Months Ended March 31,
		2015		2014
	Income tax expense (benefit) at federal statutory rate	35	%	35	%
	Tax effect of:
	Valuation allowance	(5.6	)	(17.5	)
	Dividend received deduction	(15.4	)	(8.5	)
	Audit settlement	(0.1	)	(0.4	)
	State tax expense (benefit)	6		2.2
	Noncontrolling interest	(3.6	)	(1.6	)
	Nondeductible expenses	0.1		0.1
	Other	1.1		0.9
	Income tax expense (benefit)	17.5	%	10.2	%

Financing_Agreements_Tables

Financing Agreements (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Long-term debt securities issued and outstanding	The following table summarizes the carrying value of the Company’s long-term debt securities issued and outstanding as of March 31, 2015 and December 31, 2014:
		Maturity	March 31, 2015			December 31, 2014
	7.25% Voya Holdings, Inc. debentures due 2023(1)	8/15/23	$	159.2		$	159
	7.63% Voya Holdings, Inc. debentures due 2026(1)	8/15/26	232.4			232.3
	8.42% Equitable of Iowa Companies Capital Trust II notes due 2027	4/1/27	13.8			13.8
	6.97% Voya Holdings, Inc. debentures due 2036(1)	8/15/36	108.6			108.6
	1.00% Windsor Property Loan	6/14/27	4.9			4.9
	5.5% Senior Notes due 2022	7/15/22	849.6			849.6
	2.9% Senior Notes due 2018	2/15/18	998.9			998.9
	5.65% Fixed-to-Floating Rate Junior Subordinated Notes due 2053	5/15/53	750			750
	5.7% Senior Notes due 2043	07/15/2043	398.6			398.6
	Subtotal		3,516.00			3,515.70
	Less: Current portion of long-term debt		—			—
	Total		$	3,516.00		$	3,515.70
	(1) Guaranteed by ING Group.
Credit facilities	The following table outlines the Company's credit facilities, their dates of expiration, capacity and utilization as of March 31, 2015:
		Secured/ Unsecured	Committed/ Uncommitted		Expiration	Capacity		Utilization		Unused Commitment
	Obligor / Applicant
	Voya Financial, Inc.	Unsecured	Committed		2/14/18	$	3,000.00	$	887.2	$	2,112.80
	Security Life of Denver International Limited	Unsecured	Committed		1/24/18	175		157		18
	Voya Financial, Inc./ Langhorne I, LLC	Unsecured	Committed		1/15/19	500		—		500
	Voya Financial, Inc./ Security Life of Denver International Limited	Unsecured	Committed		11/9/15	750		750		—
	Security Life of Denver International Limited	Unsecured	Committed		10/29/21	1,125.00		1,125.00		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/29/23	250		250		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/31/25	475		475		—
	Voya Financial, Inc.	Secured	Committed		2/11/18	195		195		—
	Voya Financial, Inc.	Unsecured	Uncommitted		Various	1.7		1.7		—
	Voya Financial, Inc.	Secured	Uncommitted		Various	10		0.7		—
	Voya Financial, Inc. / Roaring River II, LLC	Unsecured	Committed		12/31/21	995		717		278
	Voya Financial, Inc./ Roaring River IV, LLC	Unsecured	Committed		12/31/28	565		295		270
	Total					$	8,041.70	$	4,853.60	$	3,178.80
	Secured facilities					$	205	$	195.7	$	—
	Unsecured and uncommitted					1.7		1.7		—
	Unsecured and committed					7,835.00		4,656.20		3,178.80
	Total					$	8,041.70	$	4,853.60	$	3,178.80

Commitments_and_Contingencies_

Commitments and Contingencies Commitments (Tables)	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Schedule of Restricted Assets	The components of the fair value of the restricted assets were as follows as of the dates indicated:
		March 31, 2015		December 31, 2014
	Fixed maturity collateral pledged to FHLB	$	1,631.30	$	1,614.80
	FHLB restricted stock(1)	76.3		76.3
	Other fixed maturities-state deposits	246.3		241.7
	Securities pledged(2)	1,209.70		1,184.60
	Total restricted assets	$	3,163.60	$	3,117.40
	(1) Included in Other investments in the Condensed Consolidated Balance Sheets.
	(2) Includes the fair value of loaned securities of $548.8 and $545.9 as of March 31, 2015 and December 31, 2014, respectively, which are included in Securities pledged on the Condensed Consolidated Balance Sheets. In addition, as of March 31, 2015 and December 31, 2014, the Company delivered securities as collateral of $660.9 and $638.7, respectively, which are included in Securities pledged on the Condensed Consolidated Balance Sheets.

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The following table summarizes income and expense from transactions with related parties for the periods indicated:
		Three Months Ended March 31,
		2015						2014
		Income			Expense			Income			Expense
	NN Group	$	0.4		$	0.1		$	0.6		$	0.1
	ING Group	2.8			3			5.6			3.5
	ING Bank	18.2			5.7			(0.5		)	6.6
	Other	3.8			3.4			5.3			3.4
	Total	$	25.2		$	12.2		$	11		$	13.6
	Assets and liabilities from transactions with related parties as of December 31, 2014 are shown below:
			Assets			Liabilities
	NN Group		$	0.1		$	0.2
	ING Group		1.9			1.2
	ING Bank		12.9			4
	Other		2.2			1.4
	Total		$	17.1		$	6.8

Consolidated_Investment_Entiti1

Consolidated Investment Entities (Tables)	3 Months Ended
	Mar. 31, 2015
Consolidated Investment Entities [Abstract]
Components of the Consolidated Investment Entities	The following table summarizes the components of the consolidated investment entities, excluding collateral support for certain reinsurance contracts, as of the dates indicated:
		March 31, 2015			December 31, 2014
	Assets of Consolidated Investment Entities
	VIEs - CLO entities:
	Cash and cash equivalents	$	198.2		$	605.9
	Corporate loans, at fair value using the fair value option	7,040.10			6,793.10
	Other assets	70.4			67.3
	Total CLO entities	7,308.70			7,466.30
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	101.5			104.5
	Limited partnerships/corporations, at fair value	3,852.50			3,727.30
	Other assets	32			25.1
	Total investment funds	3,986.00			3,856.90
	Total assets of consolidated investment entities	$	11,294.70		$	11,323.20
	Liabilities of Consolidated Investment Entities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	6,408.90		$	6,838.10
	Other liabilities	809.8			561.1
	Total CLO entities	7,218.70			7,399.20
	VOEs - Private equity funds and single strategy hedge funds:
	Other liabilities	775.2			796.7
	Total investment funds	775.2			796.7
	Total liabilities of consolidated investment entities	$	7,993.90		$	8,195.90
Significant Unobservable Inputs for Level 3 Fair Value Measurements	The following table summarizes significant unobservable inputs for Level 3 fair value measurements as of the dates indicated:
			Fair Value			Valuation Technique		Unobservable Inputs
	March 31, 2015
	Assets:
	CLO Investments		$	19		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
	Liabilities:
	CLO Notes		$	6,408.90		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
			Fair Value			Valuation Technique		Unobservable Inputs
	December 31, 2014
	Assets:
	CLO Investments		$	19.2		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
	Liabilities:
	CLO Notes		$	6,838.10		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
Fair Value, by Balance Sheet Grouping	The carrying values and estimated fair values of the Company’s financial instruments as of the dates indicated:
		March 31, 2015							December 31, 2014
		Carrying			Fair				Carrying		Fair
		Value			Value				Value		Value
	Assets:
	Fixed maturities, including securities pledged	$	76,302.40		$	76,302.40			$	74,659.40	$	74,659.40
	Equity securities, available-for-sale	283.6			283.6				271.8		271.8
	Mortgage loans on real estate	10,194.50			10,644.90				9,794.10		10,286.60
	Policy loans	2,074.10			2,074.10				2,104.00		2,104.00
	Limited partnerships/corporations	375.5			375.5				363.2		363.2
	Cash, cash equivalents, short-term investments and short-term investments under securities loan agreements	4,484.60			4,484.60				5,069.30		5,069.30
	Derivatives	2,127.00			2,127.00				1,819.60		1,819.60
	Other investments	97			107.1				110.3		120.4
	Assets held in separate accounts	107,039.40			107,039.40				106,007.80		106,007.80
	Liabilities:
	Investment contract liabilities:
	Funding agreements without fixed maturities and deferred annuities(1)	50,411.10			56,725.70				49,850.90		55,171.40
	Funding agreements with fixed maturities and guaranteed investment contracts	1,564.00			1,543.00				1,593.00		1,564.80
	Supplementary contracts, immediate annuities and other	2,612.10			2,825.30				2,535.30		2,706.20
	Derivatives:
	Annuity product guarantees:
	FIA	2,015.60			2,015.60				1,970.00		1,970.00
	GMAB/GMWB/GMWBL	1,860.00			1,860.00				1,586.70		1,586.70
	Stabilizer and MCGs	148.1			148.1				102.9		102.9
	Other derivatives	974.3			974.3				849.3		849.3
	Long-term debt	3,516.00			3,968.50				3,515.70		3,875.40
	Embedded derivatives on reinsurance	163.5			163.5				139.6		139.6
	(1) Certain amounts included in Funding agreements without fixed maturities and deferred annuities are also reflected within the Annuity product guarantees section of the table above.
	The following table summarizes the fair value hierarchy levels of consolidated investment entities as of March 31, 2015:
		Level 1			Level 2				Level 3		Total
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	198.2		$	—			$	—	$	198.2
	Corporate loans, at fair value using the fair value option	—			7,021.10				19		7,040.10
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	101.5			—				—		101.5
	Limited partnerships/corporations, at fair value	—			1,161.30				2,691.20		3,852.50
	Total assets, at fair value	$	299.7		$	8,182.40			$	2,710.20	$	11,192.30
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—		$	—			$	6,408.90	$	6,408.90
	Total liabilities, at fair value	$	—		$	—			$	6,408.90	$	6,408.90
	The following table summarizes the fair value hierarchy levels of consolidated investment entities as of December 31, 2014:
		Level 1			Level 2				Level 3		Total
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	605.9		$	—			$	—	$	605.9
	Corporate loans, at fair value using the fair value option	—			6,773.90				19.2		6,793.10
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	104.5			—				—		104.5
	Limited partnerships/corporations, at fair value	—			1,035.60				2,691.70		3,727.30
	Total assets, at fair value	$	710.4		$	7,809.50			$	2,710.90	$	11,230.80
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—		$	—			$	6,838.10	$	6,838.10
	Total liabilities, at fair value	$	—		$	—			$	6,838.10	$	6,838.10
Reconciliation of the Beginning and Ending Fair Value Measurements for Level 3 Assets and Liabilities Using Unobservable Inputs	The reconciliation of the beginning and ending fair value measurements for Level 3 assets and liabilities using significant unobservable inputs for the three months ended March 31, 2015 is presented in the table below:
		Fair Value			Gains (Losses)				Purchases		Sales			Transfer into Level 3		Transfer out of Level 3		Fair Value as of March 31
		as of January 1			Included in the Condensed Consolidated
					Statement of Operations
	Assets
	VIEs - CLO entities:
	Corporate loans, at fair value using the fair value option	$	19.2		$	(0.1	)		$	—	$	(0.1	)	$	—	$	—	$	19
	VOEs - Private equity funds and single strategy hedge funds:
	Limited partnerships/corporations, at fair value	2,691.70			(0.5		)		—		—			—		—		2,691.20
	Total assets, at fair value	$	2,710.90		$	(0.6	)		$	—	$	(0.1	)	$	—	$	—	$	2,710.20
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	6,838.10		$	(28.2	)		$	—	$	(401.0	)	$	—	$	—	$	6,408.90
	Total liabilities, at fair value	$	6,838.10		$	(28.2	)		$	—	$	(401.0	)	$	—	$	—	$	6,408.90
	The reconciliation of the beginning and ending fair value measurements for Level 3 assets and liabilities using significant unobservable inputs for the three months ended March 31, 2014 is presented in the table below:
		Fair Value			Gains (Losses)				Purchases		Sales			Transfer into Level 3		Transfer out of Level 3		Fair Value as of March 31
		as of January 1			Included in the Condensed Consolidated
					Statement of Operations
	Assets
	VIEs - CLO entities:
	Corporate loans, at fair value using the fair value option	$	25.5		$	0.2			$	—	$	(0.7	)	$	—	$	—	$	25
	VOEs - Private equity funds and single strategy hedge funds:
	Limited partnerships/corporations, at fair value	2,734.10			(0.6		)		5.1		—			13.9		—		2,752.50
	Total assets, at fair value	$	2,759.60		$	(0.4	)		$	5.1	$	(0.7	)	$	13.9	$	—	$	2,777.50
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	5,161.60		$	1.1			$	409.4	$	(46.6	)	$	—	$	—	$	5,525.50
	Total liabilities, at fair value	$	5,161.60		$	1.1			$	409.4	$	(46.6	)	$	—	$	—	$	5,525.50
Maximum Exposure to Loss	The following table presents the carrying amounts of total assets and liabilities of the CLOs in which the Company concluded that it holds a variable interest, but is not the primary beneficiary as of the dates indicated. The Company determines its maximum exposure to loss to be: (i) the amount invested in the debt or equity of the CLO and (ii) other commitments and guarantees to the CLO.
		March 31, 2015			December 31, 2014
	Carrying amount	$	—		$	—
	Maximum exposure to loss	—			—
	Assets of nonconsolidated investment entities	892.3			932.8
	Liabilities of nonconsolidated investment entities	928.8			983.7

Segments_Tables

Segments (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Schedule of Segment and Subsegments	The Company provides its principal products and services in three ongoing businesses and reports results through five ongoing segments as follows:
	Business		Segment
	Retirement Solutions		Retirement
			Annuities
	Investment Management		Investment Management
	Insurance Solutions		Individual Life
			Employee Benefits
Schedule of Operating Earnings Before Income Taxes from Segments	The summary below reconciles operating earnings before income taxes for the segments to Income (loss) before income taxes for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Retirement Solutions:
	Retirement	$	124.5		$	114.9
	Annuities	68.6			54.8
	Investment Management	46.9			49.8
	Insurance Solutions:
	Individual Life	43.4			31.1
	Employee Benefits	40.6			16.9
	Total Ongoing Business	324			267.5
	Corporate	(48.2		)	(37.3		)
	Closed Blocks:
	Closed Block Institutional Spread Products	5.1			5.4
	Closed Block Other	8.7			(4.5		)
	Closed Blocks	13.8			0.9
	Total operating earnings before income taxes	289.6			231.1
	Adjustments:
	Closed Block Variable Annuity	(34.4		)	20.2
	Net investment gains (losses) and related charges and adjustments	50.4			57.6
	Net guaranteed benefit hedging gains (losses) and related charges and adjustments	(47.2		)	6.4
	Loss related to businesses exited through reinsurance or divestment	(15.4		)	(10.5		)
	Income (loss) attributable to noncontrolling interest	26.1			13.5
	Other adjustments to operating earnings	(12.8		)	(16.0		)
	Income (loss) before income taxes	$	256.3		$	302.3
Reconciliation of Revenue from Segments to Total Revenues	The summary below reconciles Operating revenues for the segments to Total revenues for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Retirement Solutions:
	Retirement	$	600.5		$	598.5
	Annuities	315.6			354.4
	Investment Management	163.1			160.5
	Insurance Solutions:
	Individual Life	668.8			692.2
	Employee Benefits	370.9			338.9
	Total Ongoing Business	2,118.90			2,144.50
	Corporate	20.4			25.3
	Closed Blocks:
	Closed Block Institutional Spread Products	14.9			17.6
	Closed Block Other	7			8
	Closed Blocks	21.9			25.6
	Total operating revenues	2,161.20			2,195.40
	Adjustments:
	Closed Block Variable Annuity	259.4			284.6
	Net realized investment gains (losses) and related charges and adjustments	53.1			49.6
	Gain (loss) on change in fair value of derivatives related to guaranteed benefits	(53.6		)	(23.9		)
	Revenues related to businesses exited through reinsurance or divestment	40.6			19
	Revenues attributable to noncontrolling interest	89.8			60.8
	Other adjustments to operating revenues	75.5			85.4
	Total revenues	$	2,626.00		$	2,670.90
	Other Segment Information
	The Investment Management segment revenues include the following intersegment revenues, primarily consisting of asset-based management and administration fees for the periods indicated:
		Three Months Ended March 31,
		2015			2014
	Investment management intersegment revenues	$	38.6		$	39.3
Summary of Financial Information for Segments	The summary below presents Total assets for the Company’s segments as of the dates indicated:
		March 31, 2015			December 31, 2014
	Retirement Solutions:
	Retirement	$	98,429.10		$	96,433.90
	Annuities	25,956.30			25,901.50
	Investment Management	424.9			492.6
	Insurance Solutions:
	Individual Life	26,977.30			26,877.10
	Employee Benefits	2,623.10			2,602.40
	Total Ongoing Business	154,410.70			152,307.50
	Corporate	5,826.00			5,910.00
	Closed Blocks:
	Closed Block Variable Annuity	48,871.50			48,706.90
	Closed Block Institutional Spread Products	1,904.10			1,901.90
	Closed Block Other	7,449.00			7,496.30
	Closed Blocks	58,224.60			58,105.10
	Total assets of segments	218,461.30			216,322.60
	Noncontrolling interest	10,586.90			10,628.80
	Total assets	$	229,048.20		$	226,951.40

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	3 Months Ended
	Mar. 31, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of Condensed Consolidating Balance Sheets	Condensed Consolidating Balance Sheet
	March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Assets:
	Investments:
	Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	71,432.70		$	(15.3	)	$	71,417.40
	Fixed maturities, at fair value using the fair value option	—			—			3,675.30			—			3,675.30
	Equity securities, available-for-sale, at fair value	91.2			—			192.4			—			283.6
	Short-term investments	212			—			1,403.50			—			1,615.50
	Mortgage loans on real estate, net of valuation allowance	—			—			10,194.50			—			10,194.50
	Policy loans	—			—			2,074.10			—			2,074.10
	Limited partnerships/corporations	—			—			375.5			—			375.5
	Derivatives	71.4			—			2,235.20			(179.6		)	2,127.00
	Investments in subsidiaries	18,507.40			13,710.00			—			(32,217.4		)	—
	Other investments	—			1.3			95.7			—			97
	Securities pledged	—			—			1,209.70			—			1,209.70
	Total investments	18,882.00			13,711.30			92,888.60			(32,412.3		)	93,069.60
	Cash and cash equivalents	249.6			1.7			1,624.10			—			1,875.40
	Short-term investments under securities loan agreements, including collateral delivered	30.7			—			983.1			(20.1		)	993.7
	Accrued investment income	—			—			927.2			—			927.2
	Reinsurance recoverable	—			—			7,048.80			—			7,048.80
	Deferred policy acquisition costs and Value of business acquired	—			—			4,244.30			—			4,244.30
	Sales inducements to contract holders	—			—			239.9			—			239.9
	Deferred income taxes	409.2			48.7			577.5			—			1,035.40
	Goodwill and other intangible assets	—			—			276.3			—			276.3
	Loans to subsidiaries and affiliates	183.4			0.1			535			(718.5		)	—
	Due from subsidiaries and affiliates	16.5			0.5			7			(24.0		)	—
	Other assets	54.8			—			949.6			(0.9		)	1,003.50
	Assets related to consolidated investment entities:
	Limited partnerships/corporations, at fair value	—			—			3,852.50			—			3,852.50
	Cash and cash equivalents	—			—			299.7			—			299.7
	Corporate loans, at fair value using the fair value option	—			—			7,040.10			—			7,040.10
	Other assets	—			—			102.4			—			102.4
	Assets held in separate accounts	—			—			107,039.40			—			107,039.40
	Total assets	$	19,826.20		$	13,762.30		$	228,635.50		$	(33,175.8	)	$	229,048.20
	Condensed Consolidating Balance Sheet
	March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Liabilities and Shareholders' Equity:
	Future policy benefits	$	—		$	—		$	16,037.60		$	—		$	16,037.60
	Contract owner account balances	—			—			69,692.60			—			69,692.60
	Payables under securities loan agreement, including collateral held	—			—			1,971.90			—			1,971.90
	Short-term debt with affiliates	534.3			148.4			34.9			(717.6		)	—
	Long-term debt	2,997.20			515.4			18.7			(15.3		)	3,516.00
	Funds held under reinsurance agreements	—			—			1,162.20			—			1,162.20
	Derivatives	108.2			—			1,045.70			(179.6		)	974.3
	Pension and other post-employment provisions	—			—			808.1			—			808.1
	Current income taxes	3.3			(1.1		)	1.9			—			4.1
	Due to subsidiaries and affiliates	5.8			1.2			2			(9.0		)	—
	Other liabilities	75.4			6			1,136.90			(36.9		)	1,181.40
	Liabilities related to consolidated investment entities:
	Collateralized loan obligations notes, at fair value using the fair value option	—			—			6,408.90			—			6,408.90
	Other liabilities	—			—			1,585.00			—			1,585.00
	Liabilities related to separate accounts	—			—			107,039.40			—			107,039.40
	Total liabilities	3,724.20			669.9			206,945.80			(958.4		)	210,381.50
	Shareholders' equity:
	Total Voya Financial, Inc. shareholders' equity	16,102.00			13,092.40			19,125.00			(32,217.4		)	16,102.00
	Noncontrolling interest	—			—			2,564.70			—			2,564.70
	Total shareholders' equity	16,102.00			13,092.40			21,689.70			(32,217.4		)	18,666.70
	Total liabilities and shareholders' equity	$	19,826.20		$	13,762.30		$	228,635.50		$	(33,175.8	)	$	229,048.20
	Condensed Consolidating Balance Sheet
	December 31, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Assets:
Investments:
Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	69,925.60		$	(15.3	)	$	69,910.30
Fixed maturities, at fair value using the fair value option	—			—			3,564.50			—			3,564.50
Equity securities, available-for-sale, at fair value	83.4			—			188.4			—			271.8
Short-term investments	—			—			1,711.40			—			1,711.40
Mortgage loans on real estate, net of valuation allowance	—			—			9,794.10			—			9,794.10
Policy loans	—			—			2,104.00			—			2,104.00
Limited partnerships/corporations	—			—			363.2			—			363.2
Derivatives	69			—			1,923.10			(172.5		)	1,819.60
Investments in subsidiaries	17,879.70			13,312.00			—			(31,191.7		)	—
Other investments	—			14.4			95.9			—			110.3
Securities pledged	—			—			1,184.60			—			1,184.60
Total investments	18,032.10			13,326.40			90,854.80			(31,379.5		)	90,833.80
Cash and cash equivalents	682.1			1.6			1,847.20			—			2,530.90
Short-term investments under securities loan agreements, including collateral delivered	30.7			—			816.4			(20.1		)	827
Accrued investment income	—			—			891.7			—			891.7
Reinsurance recoverable	—			—			7,116.90			—			7,116.90
Deferred policy acquisition costs and Value of business acquired	—			—			4,570.90			—			4,570.90
Sales inducements to contract holders	—			—			253.6			—			253.6
Deferred income taxes	398.2			49.2			873.2			—			1,320.60
Goodwill and other intangible assets	—			—			284.4			—			284.4
Loans to subsidiaries and affiliates	169			—			0.3			(169.3		)	—
Due from subsidiaries and affiliates	13			0.1			6			(19.1		)	—
Other assets	49.3			—			942.2			(0.9		)	990.6
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	—			—			3,727.30			—			3,727.30
Cash and cash equivalents	—			—			710.4			—			710.4
Corporate loans, at fair value using the fair value option	—			—			6,793.10			—			6,793.10
Other assets	—			—			92.4			—			92.4
Assets held in separate accounts	—			—			106,007.80			—			106,007.80
Total assets	$	19,374.40		$	13,377.30		$	225,788.60		$	(31,588.9	)	$	226,951.40
Condensed Consolidating Balance Sheet
December 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Liabilities and Shareholders' Equity:
Future policy benefits	$	—		$	—		$	15,691.20		$	—		$	15,691.20
Contract owner account balances	—			—			69,319.50			—			69,319.50
Payables under securities loan agreement, including collateral held	—			—			1,445.00			—			1,445.00
Short-term debt with affiliates	—			149.7			19.3			(169.0		)	—
Long-term debt	2,997.10			515.3			18.6			(15.3		)	3,515.70
Funds held under reinsurance agreements	—			—			1,159.60			—			1,159.60
Derivatives	103.5			—			918.3			(172.5		)	849.3
Pension and other post-employment provisions	—			—			826.2			—			826.2
Current income taxes	84.8			(5.7		)	5.7			—			84.8
Due to subsidiaries and affiliates	4.8			1.2			(1.9		)	(4.1		)	—
Other liabilities	76.3			14.9			1,278.30			(36.3		)	1,333.20
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	—			—			6,838.10			—			6,838.10
Other liabilities	—			—			1,357.80			—			1,357.80
Liabilities related to separate accounts	—			—			106,007.80			—			106,007.80
Total liabilities	3,266.50			675.4			204,883.50			(397.2		)	208,428.20
Shareholders' equity:
Total Voya Financial, Inc. shareholders' equity	16,107.90			12,701.90			18,489.80			(31,191.7		)	16,107.90
Noncontrolling interest	—			—			2,415.30			—			2,415.30
Total shareholders' equity	16,107.90			12,701.90			20,905.10			(31,191.7		)	18,523.20
Total liabilities and shareholders' equity	$	19,374.40		$	13,377.30		$	225,788.60		$	(31,588.9	)	$	226,951.40
Schedule of Condensed Consolidating Statement of Operations	Condensed Consolidating Statement of Operations
	For the Three Months Ended March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Revenues:
	Net investment income	$	3.4		$	0.1		$	1,173.00		$	(1.9	)	$	1,174.60
	Fee income	—			—			899.8			—			899.8
	Premiums	—			—			608.8			—			608.8
	Net realized gains (losses):
	Total other-than-temporary impairments	—			—			(2.6		)	—			(2.6		)
	Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	—			—			2.3			—			2.3
	Net other-than-temporary impairments recognized in earnings	—			—			(4.9		)	—			(4.9		)
	Other net realized capital gains (losses)	(1.0		)	0.2			(258.8		)	—			(259.6		)
	Total net realized capital gains (losses)	(1.0		)	0.2			(263.7		)	—			(264.5		)
	Other revenue	0.9			—			102.7			(0.9		)	102.7
	Income (loss) related to consolidated investment entities:
	Net investment income	—			—			96.9			—			96.9
	Changes in fair value related to collateralized loan obligations	—			—			7.7			—			7.7
	Total revenues	3.3			0.3			2,625.20			(2.8		)	2,626.00
	Benefits and expenses:
	Policyholder benefits	—			—			887			—			887
	Interest credited to contract owner account balances	—			—			484.7			—			484.7
	Operating expenses	0.7			—			769			(0.9		)	768.8
	Net amortization of Deferred policy acquisition costs and Value of business acquired	—			—			118.1			—			118.1
	Interest expense	37.7			10.6			1			(1.9		)	47.4
	Operating expenses related to consolidated investment entities:
	Interest expense	—			—			62.5			—			62.5
	Other expense	—			—			1.2			—			1.2
	Total benefits and expenses	38.4			10.6			2,323.50			(2.8		)	2,369.70
	Income (loss) before income taxes	(35.1		)	(10.3		)	301.7			—			256.3
	Income tax expense (benefit)	—			(5.8		)	56.4			(5.9		)	44.7
	Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	(35.1		)	(4.5		)	245.3			5.9			211.6
	Equity in earnings (losses) of subsidiaries, net of tax	220.6			133.2			—			(353.8		)	—
	Net income (loss) including noncontrolling interest	185.5			128.7			245.3			(347.9		)	211.6
	Less: Net income (loss) attributable to noncontrolling interest	—			—			26.1			—			26.1
	Net income (loss) available to Voya Financial, Inc.'s common shareholders	$	185.5		$	128.7		$	219.2		$	(347.9	)	$	185.5
	Condensed Consolidating Statement of Operations
	For the Three Months Ended March 31, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Revenues:
	Net investment income	$	2		$	—		$	1,144.90		$	(1.3	)	$	1,145.60
	Fee income	—			—			931.8			—			931.8
	Premiums	—			—			600.9			—			600.9
	Net realized gains (losses):
	Total other-than-temporary impairments	—			—			(3.3		)	—			(3.3		)
	Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	—			—			—			—			—
	Net other-than-temporary impairments recognized in earnings	—			—			(3.3		)	—			(3.3		)
	Other net realized capital gains (losses)	0.6			—			(187.9		)	—			(187.3		)
	Total net realized capital gains (losses)	0.6			—			(191.2		)	—			(190.6		)
	Other revenue	0.9			—			105.5			(0.9		)	105.5
	Income (loss) related to consolidated investment entities:
	Net investment income	—			—			81.5			—			81.5
	Changes in fair value related to collateralized loan obligations	—			—			(3.8		)	—			(3.8		)
	Total revenues	3.5			—			2,669.60			(2.2		)	2,670.90
	Benefits and expenses:
	Policyholder benefits	—			—			865			—			865
	Interest credited to contract owner account balances	—			—			493.1			—			493.1
	Operating expenses	1.5			—			788.9			(0.9		)	789.5
	Net amortization of Deferred policy acquisition costs and Value of business acquired	—			—			126.1			—			126.1
	Interest expense	37.2			10.5			1.2			(1.3		)	47.6
	Operating expenses related to consolidated investment entities:
	Interest expense	—			—			46.2			—			46.2
	Other expense	—			—			1.1			—			1.1
	Total benefits and expenses	38.7			10.5			2,321.60			(2.2		)	2,368.60
	Income (loss) before income taxes	(35.2		)	(10.5		)	348			—			302.3
Income tax expense (benefit)	—			3.3			22.1			5.3			30.7
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	(35.2		)	(13.8		)	325.9			(5.3		)	271.6
Equity in earnings (losses) of subsidiaries, net of tax	293.3			14.3			—			(307.6		)	—
Net income (loss) including noncontrolling interest	258.1			0.5			325.9			(312.9		)	271.6
Less: Net income (loss) attributable to noncontrolling interest	—			—			13.5			—			13.5
Net income (loss) available to Voya Financial, Inc.'s common shareholders	$	258.1		$	0.5		$	312.4		$	(312.9	)	$	258.1
Schedule of Condensed Consolidating Statement of Comprehensive Income	Condensed Consolidating Statement of Comprehensive Income
	For the Three Months Ended March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Net income (loss) including noncontrolling interest	$	185.5		$	128.7		$	245.3		$	(347.9	)	$	211.6
	Other comprehensive income (loss), before tax:
	Unrealized gains (losses) on securities	654.4			435			654.4			(1,089.4		)	654.4
	Other-than-temporary impairments	5.7			4.7			5.7			(10.4		)	5.7
	Pension and other postretirement benefits liability	(3.4		)	(0.8		)	(3.4		)	4.2			(3.4		)
	Other comprehensive income (loss), before tax	656.7			438.9			656.7			(1,095.6		)	656.7
	Income tax expense (benefit) related to items of other comprehensive income (loss)	229.2			153			229.2			(382.2		)	229.2
	Other comprehensive income (loss), after tax	427.5			285.9			427.5			(713.4		)	427.5
	Comprehensive income (loss)	613			414.6			672.8			(1,061.3		)	639.1
	Less: Comprehensive income (loss) attributable to noncontrolling interest	—			—			26.1			—			26.1
	Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	$	613		$	414.6		$	646.7		$	(1,061.3	)	$	613
	Condensed Consolidating Statement of Comprehensive Income
	For the Three Months Ended March 31, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Net income (loss) including noncontrolling interest	$	258.1		$	0.5		$	325.9		$	(312.9	)	$	271.6
	Other comprehensive income (loss), before tax:
	Unrealized gains (losses) on securities	1,110.10			767.7			1,113.20			(1,880.9		)	1,110.10
	Other-than-temporary impairments	15.6			13.2			15.6			(28.8		)	15.6
	Pension and other postretirement benefits liability	(3.4		)	(0.8		)	(3.4		)	4.2			(3.4		)
	Other comprehensive income (loss), before tax	1,122.30			780.1			1,125.40			(1,905.5		)	1,122.30
	Income tax expense (benefit) related to items of other comprehensive income (loss)	393.9			274.1			393.5			(667.6		)	393.9
	Other comprehensive income (loss), after tax	728.4			506			731.9			(1,237.9		)	728.4
	Comprehensive income (loss)	986.5			506.5			1,057.80			(1,550.8		)	1,000.00
	Less: Comprehensive income (loss) attributable to noncontrolling interest	—			—			13.5			—			13.5
	Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholder	$	986.5		$	506.5		$	1,044.30		$	(1,550.8	)	$	986.5
Schedule of Condensed Consolidating Statement of Cash Flows
	Condensed Consolidating Statement of Cash Flows
	For the Three Months Ended March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Net cash provided by (used in) operating activities	$	(130.4	)	$	20.1		$	1,196.00		$	(32.0	)	$	1,053.70
	Cash Flows from Investing Activities:
	Proceeds from the sale, maturity, disposal or redemption of:
	Fixed maturities	—			—			2,246.30			—			2,246.30
	Equity securities, available-for-sale	7.1			—			0.8			—			7.9
	Mortgage loans on real estate	—			—			312.8			—			312.8
	Limited partnerships/corporations	—			—			33.3			—			33.3
	Acquisition of:
	Fixed maturities	—			—			(2,937.4		)	—			(2,937.4		)
	Equity securities, available-for-sale	(13.3		)	—			(1.0		)	—			(14.3		)
	Mortgage loans on real estate	—			—			(713.3		)	—			(713.3		)
	Limited partnerships/corporations	—			—			(33.7		)	—			(33.7		)
	Short-term investments, net	(212.0		)	—			307.9			—			95.9
	Policy loans, net	—			—			29.9			—			29.9
	Derivatives, net	(2.5		)	—			(82.8		)	—			(85.3		)
	Other investments, net	—			13.3			0.2			—			13.5
	Sales from consolidated investments entities	—			—			767.6			—			767.6
	Purchases of consolidated investment entities	—			—			(1,320.7		)	—			(1,320.7		)
	Maturity of intercompany loans with maturities more than three months	0.3			—			—			(0.3		)	—
	Net maturity of short-term intercompany loans	(14.7		)	—			(534.3		)	549			—
	Return of capital contributions and dividends from subsidiaries	32			—			—			(32.0		)	—
	Collateral received (delivered), net	—			—			360.2			—			360.2
	Purchases of fixed assets, net	—			—			(8.6		)	—			(8.6		)
	Net cash provided by (used in) investing activities	(203.1		)	13.3			(1,572.8		)	516.7			(1,245.9		)
	Condensed Consolidating Statement of Cash Flows
	For the Three Months Ended March 31, 2015
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Cash Flows from Financing Activities:
	Deposits received for investment contracts	—			—			1,864.30			—			1,864.30
	Maturities and withdrawals from investment contracts	—			—			(1,760.8		)	—			(1,760.8		)
	Debt issuance costs	(6.2		)	—			—			—			(6.2		)
	Intercompany loans with maturities of more than three months	—			—			(0.3		)	0.3			—
	Net (repayments of) proceeds from short-term intercompany loans	534.3			(1.3		)	16			(549.0		)	—
	Return of capital contributions and dividends to parent	—			(32.0		)	(32.0		)	64			—
	Borrowings of consolidated investment entities	—			—			350			—			350
	Repayments of debt of consolidated investment entities	—			—			(15.9		)	—			(15.9		)
	Contributions from (distributions to) participants in consolidated investment entities	—			—			(268.9		)	—			(268.9		)
	Common stock acquired - Share buyback	(622.0		)	—			—			—			(622.0		)
	Share-based compensation	(2.7		)	—			—			—			(2.7		)
	Excess tax benefits on share-based compensation	—			—			1.3			—			1.3
	Dividends paid	(2.4		)	—			—			—			(2.4		)
	Net cash provided by (used in) financing activities	(99.0		)	(33.3		)	153.7			(484.7		)	(463.3		)
	Net increase (decrease) in cash and cash equivalents	(432.5		)	0.1			(223.1		)	—			(655.5		)
	Cash and cash equivalents, beginning of period	682.1			1.6			1,847.20			—			2,530.90
	Cash and cash equivalents, end of period	$	249.6		$	1.7		$	1,624.10		$	—		$	1,875.40
	Condensed Consolidating Statement of Cash Flows
	For the Three Months Ended March 31, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Net cash provided by (used in) operating activities	$	(12.1	)	$	8		$	816.7		$	(26.0	)	$	786.6
	Cash Flows from Investing Activities:
	Proceeds from the sale, maturity, disposal or redemption of:
	Fixed maturities	—			—			2,629.70			—			2,629.70
	Equity securities, available-for-sale	2.4			13.1			32.2			—			47.7
	Mortgage loans on real estate	—			—			307.4			—			307.4
	Limited partnerships/corporations	—			—			60.9			—			60.9
	Acquisition of:
	Fixed maturities	—			—			(3,057.2		)	—			(3,057.2		)
	Equity securities, available-for-sale	(6.5		)	—			(0.9		)	—			(7.4		)
	Mortgage loans on real estate	—			—			(252.9		)	—			(252.9		)
	Limited partnerships/corporations	—			—			(18.4		)	—			(18.4		)
Short-term investments, net	(21.0		)	—			22.9			—			1.9
Policy loans, net	—			—			27.3			—			27.3
Derivatives, net	11.5			—			(190.1		)	—			(178.6		)
Other investments, net	—			—			2			—			2
Sales from consolidated investments entities	—			—			571.8			—			571.8
Purchases of consolidated investment entities	—			—			(1,258.8		)	—			(1,258.8		)
Maturity of intercompany loans with maturities more than three months	0.6			—			—			(0.6		)	—
Net maturity of short-term intercompany loans	(159.3		)	—			(180.0		)	339.3			—
Return of capital contributions from subsidiaries	75			—			—			(75.0		)	—
Capital contributions to subsidiaries	—			(156.0		)	—			156			—
Collateral received (delivered), net	—			—			89.4			—			89.4
Purchases of fixed assets, net	—			—			(8.7		)	—			(8.7		)
Other, net	—			0.2			(0.2		)	—			—
Net cash provided by (used in) investing activities	(97.3		)	(142.7		)	(1,223.6		)	419.7			(1,043.9		)
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Cash Flows from Financing Activities:
Deposits received for investment contracts	—			—			2,500.00			—			2,500.00
Maturities and withdrawals from investment contracts	—			—			(2,809.7		)	—			(2,809.7		)
Debt issuance costs	(16.7		)	—			—			—			(16.7		)
Intercompany loans with maturities of more than three months	—			—			(0.6		)	0.6			—
Net (repayments of) proceeds from short-term intercompany loans	180			135.1			24.2			(339.3		)	—
Return of capital contributions and dividends to parent	—			—			(101.0		)	101			—
Contributions of capital from parent	—			—			156			(156.0		)	—
Borrowings of consolidated investment entities	—			—			28.4			—			28.4
Contributions from (distributions to) participants in consolidated investment entities	—			—			466.9			—			466.9
Common stock acquired - Share buyback	(250.0		)	—			—			—			(250.0		)
Dividends paid	(2.6		)	—			—			—			(2.6		)
Net cash provided by (used in) financing activities	(89.3		)	135.1			264.2			(393.7		)	(83.7		)
Net increase (decrease) in cash and cash equivalents	(198.7		)	0.4			(142.7		)	—			(341.0		)
Cash and cash equivalents, beginning of period	640.2			1.1			2,199.50			—			2,840.80
Cash and cash equivalents, end of period	$	441.5		$	1.5		$	2,056.80		$	—		$	2,499.80

Business_Basis_of_Presentation2

Business, Basis of Presentation and Significant Accounting Policies (Details) (USD $)	0 Months Ended	3 Months Ended		0 Months Ended		12 Months Ended	0 Months Ended
	Mar. 09, 2015	Mar. 31, 2015	Mar. 31, 2014	Oct. 29, 2013	7-May-13	Dec. 31, 2014	Apr. 20, 2015	Mar. 25, 2014
		segments					segments
Schedule of Equity Transactions [Line Items]
Number of reportable segments		3
Offering of shares by parent company and subsidiaries		0	0
Number of warrants issued and outstanding	26,050,846				26,050,846
Investments warrants, exercise price	$48.75
Number of operating segments		5
Voya Financial, Inc.
Schedule of Equity Transactions [Line Items]
Offering of shares by parent company and subsidiaries	32,018,100			37,950,000	30,769,230	82,783,006
Shares repurchased	13,599,274					19,447,847
ING Group
Schedule of Equity Transactions [Line Items]
Offering of shares by parent company and subsidiaries					44,201,773
Shares repurchased	13,599,274
Ownership by affiliate of parent company	100.00%			57.00%		19.00%		43.00%
Subsequent Event
Schedule of Equity Transactions [Line Items]
Number of reportable segments							2

Investments_excluding_Consolid2

Investments (excluding Consolidated Investment Entities) - Fixed Maturities and Equity Securities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Available-for-sale Securities, Including Securities Pledged [Line Items]
Embedded Derivatives	$114	$115.80
OTTI	80.3	86
Securities pledged, Amortized Cost	1,078.80	1,089.30
Securities pledged	1,209.70	1,184.60
Total equity securities, Amortized Cost	251	242
Equity securities, available-for-sale	283.6	271.8
Total fixed maturities and equity securities, Amortized Cost	68,583.30	67,851.50
Total fixed maturities and equity securities, Gross Unrealized Capital Gains	6,905.10	6,089.20
Total fixed maturities and equity securities, Gross Unrealized Capital Losses	226.1	309.9
Total fixed maturities and equity securities, Fair Value	75,376.30	73,746.60
U.S. Treasuries
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	3,071.50	3,279
Fixed maturities, Gross Unrealized Capital Gains	709.8	625.9
Fixed maturities, Gross Unrealized Capital Losses	0.1	0.9
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	3,781.20	3,904
OTTI	0	0
U.S. government agencies and authorities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	376.8	376.1
Fixed maturities, Gross Unrealized Capital Gains	65.3	59.8
Fixed maturities, Gross Unrealized Capital Losses	0	0
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	442.1	435.9
OTTI	0	0
State, municipalities and political subdivisions
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	754.3	659.5
Fixed maturities, Gross Unrealized Capital Gains	44.5	35.4
Fixed maturities, Gross Unrealized Capital Losses	0.7	0.5
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	798.1	694.4
OTTI	0	0
U.S. corporate securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	38,453.60	37,425.50
Fixed maturities, Gross Unrealized Capital Gains	4,017.10	3,479.20
Fixed maturities, Gross Unrealized Capital Losses	111.4	163.9
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	42,359.30	40,740.80
OTTI	9.6	10.2
Foreign
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	15,609.80	15,531.60
Fixed maturities, Gross Unrealized Capital Gains	1,197.40	1,030.60
Fixed maturities, Gross Unrealized Capital Losses	94.2	118
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	16,713	16,444.20
OTTI	0	0
Foreign securities government
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	864.9	858.3
Fixed maturities, Gross Unrealized Capital Gains	56.2	47
Fixed maturities, Gross Unrealized Capital Losses	9.8	14
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	911.3	891.3
OTTI	0	0
Foreign securities other
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	14,744.90	14,673.30
Fixed maturities, Gross Unrealized Capital Gains	1,141.20	983.6
Fixed maturities, Gross Unrealized Capital Losses	84.4	104
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	15,801.70	15,552.90
OTTI	0	0
Residential mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	5,849.60	5,972.70
Fixed maturities, Gross Unrealized Capital Gains	613.8	589.9
Fixed maturities, Gross Unrealized Capital Losses	17	21.6
Embedded Derivatives	114	115.8
Fixed maturities, including securities pledged, Fair Value	6,560.40	6,656.80
OTTI	57.5	62.5
Residential mortgage-backed securities, Agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	4,902.20	4,983.30
Fixed maturities, Gross Unrealized Capital Gains	445.6	421
Fixed maturities, Gross Unrealized Capital Losses	8.7	13
Embedded Derivatives	70.3	72.5
Fixed maturities, including securities pledged, Fair Value	5,409.40	5,463.80
OTTI	0.4	0.4
Residential mortgage-backed securities, Non-Agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	947.4	989.4
Fixed maturities, Gross Unrealized Capital Gains	168.2	168.9
Fixed maturities, Gross Unrealized Capital Losses	8.3	8.6
Embedded Derivatives	43.7	43.3
Fixed maturities, including securities pledged, Fair Value	1,151	1,193
OTTI	57.1	62.1
Commercial mortgage-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	3,897	3,916.30
Fixed maturities, Gross Unrealized Capital Gains	290.7	273.3
Fixed maturities, Gross Unrealized Capital Losses	1.8	1.4
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	4,185.90	4,188.20
OTTI	6.7	6.7
Other asset-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	1,398.50	1,538.10
Fixed maturities, Gross Unrealized Capital Gains	79.4	74.3
Fixed maturities, Gross Unrealized Capital Losses	15.5	17.3
Embedded Derivatives	0	0
Fixed maturities, including securities pledged, Fair Value	1,462.40	1,595.10
OTTI	6.5	6.6
Fixed maturities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, including securities pledged, Amortized Cost	69,411.10	68,698.80
Fixed maturities, Gross Unrealized Capital Gains	7,018	6,168.40
Fixed maturities, Gross Unrealized Capital Losses	240.7	323.6
Embedded Derivatives	114	115.8
Fixed maturities, including securities pledged, Fair Value	76,302.40	74,659.40
OTTI	80.3	86
Securities pledged, Amortized Cost	1,078.80	1,089.30
Securities pledged, Gross Unrealized Capital Gains	145.6	109.2
Securities pledged, Gross Unrealized Capital Losses	14.7	13.9
Securities pledged	1,209.70	1,184.60
Total fixed maturities, less securities pledged, Amortized Cost	68,332.30	67,609.50
Total fixed maturities, less securities pledged, Gross Unrealized Capital Gains	6,872.40	6,059.20
Total fixed maturities, less securities pledged, Gross Unrealized Capital Losses	226	309.7
Total fixed maturities, less securities pledged, Fair Value	75,092.70	73,474.80
Common Stock
Available-for-sale Securities, Including Securities Pledged [Line Items]
Embedded Derivatives	0	0
OTTI	0	0
Total equity securities, Amortized Cost	200.6	191.5
Equity securities, Gross Unrealized Capital Gains	0.5	0.5
Equity securities, Gross Unrealized Capital Losses	0.1	0.2
Equity securities, available-for-sale	201	191.8
Preferred stock
Available-for-sale Securities, Including Securities Pledged [Line Items]
Embedded Derivatives	0	0
OTTI	0	0
Total equity securities, Amortized Cost	50.4	50.5
Equity securities, Gross Unrealized Capital Gains	32.2	29.5
Equity securities, Gross Unrealized Capital Losses	0	0
Equity securities, available-for-sale	82.6	80
Equity securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Embedded Derivatives	0	0
OTTI	0	0
Total equity securities, Amortized Cost	251	242
Equity securities, Gross Unrealized Capital Gains	32.7	30
Equity securities, Gross Unrealized Capital Losses	0.1	0.2
Equity securities, available-for-sale	$283.60	$271.80

Investments_excluding_Consolid3

Investments (excluding Consolidated Investment Entities) - Debt Maturities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Mortgage-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Without single maturity date, Amortized Cost	$9,746.60
Without single maturity date, Fair Value	10,746.30
Other asset-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Without single maturity date, Amortized Cost	1,398.50
Without single maturity date, Fair Value	1,462.40
Fixed maturities, including securities pledged, Amortized Cost	1,398.50	1,538.10
Fixed maturities, including securities pledged	1,462.40	1,595.10
Fixed maturities
Available-for-sale Securities, Including Securities Pledged [Line Items]
One year or less, Amortized Cost	2,074.30
One year or less, Fair Value	2,091.40
After one year through five years, Amortized Cost	12,699.30
After one year through five years, Fair Value	13,448.40
After five years through ten years, Amortized Cost	20,483.30
After five years through ten years, Fair Value	21,582.60
After ten years, Amortized Cost	23,009.10
After ten years, Fair Value	26,971.30
Fixed maturities, including securities pledged, Amortized Cost	69,411.10	68,698.80
Fixed maturities, including securities pledged	$76,302.40	$74,659.40

Investments_excluding_Consolid4

Investments (excluding Consolidated Investment Entities) - Composition of US and Foreign Corporate Securities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Communications
Available-for-sale Securities, Including Securities Pledged [Line Items]
U.S. and foreign securities, Amortized Cost	$3,896.40	$3,934.50
Fixed maturities, Gross Unrealized Capital Gains	562.3	512.4
Fixed maturities, Gross Unrealized Capital Losses	2	5.7
Fixed maturities, including securities pledged	4,456.70	4,441.20
Financial
Available-for-sale Securities, Including Securities Pledged [Line Items]
U.S. and foreign securities, Amortized Cost	7,797.10	7,568.10
Fixed maturities, Gross Unrealized Capital Gains	798.1	729.3
Fixed maturities, Gross Unrealized Capital Losses	2.7	7.6
Fixed maturities, including securities pledged	8,592.50	8,289.80
Industrial and Other Companies
Available-for-sale Securities, Including Securities Pledged [Line Items]
U.S. and foreign securities, Amortized Cost	30,762.70	30,055.80
Fixed maturities, Gross Unrealized Capital Gains	2,517.40	2,109.30
Fixed maturities, Gross Unrealized Capital Losses	168.4	231
Fixed maturities, including securities pledged	33,111.70	31,934.10
Utilities
Available-for-sale Securities, Including Securities Pledged [Line Items]
U.S. and foreign securities, Amortized Cost	9,158.90	9,046.30
Fixed maturities, Gross Unrealized Capital Gains	1,107.10	959.9
Fixed maturities, Gross Unrealized Capital Losses	21	19.7
Fixed maturities, including securities pledged	10,245	9,986.50
Transportation
Available-for-sale Securities, Including Securities Pledged [Line Items]
U.S. and foreign securities, Amortized Cost	1,583.40	1,494.10
Fixed maturities, Gross Unrealized Capital Gains	173.4	151.9
Fixed maturities, Gross Unrealized Capital Losses	1.7	3.9
Fixed maturities, including securities pledged	1,755.10	1,642.10
U.S. and Foreign Corporate Securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
U.S. and foreign securities, Amortized Cost	53,198.50	52,098.80
Fixed maturities, Gross Unrealized Capital Gains	5,158.30	4,462.80
Fixed maturities, Gross Unrealized Capital Losses	195.8	267.9
Fixed maturities, including securities pledged	$58,161	$56,293.70

Investments_excluding_Consolid5

Investments (excluding Consolidated Investment Entities) - Fixed Maturities and Equity Securities, Repurchase Agreements and Securities Lending (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Available-for-sale Securities, Including Securities Pledged [Line Items]
Rate required of collateral as a percent of market value of loans securities	102.00%
Payables under securities loan agreements, including collateral held	$1,971.90	$1,445
Securities pledged as collateral
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fair value of loaned securities	548.8	545.9
Securities received as collateral	567.3	563.9
Cash collateral, included in Payables
Available-for-sale Securities, Including Securities Pledged [Line Items]
Payables under securities loan agreements, including collateral held	$567.30	$563.90
Mortgage-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Percentage collateralized of mortgage backed securities including interest-only strip or principal-only strip	45.90%	44.40%

Investments_excluding_Consolid6

Investments (excluding Consolidated Investment Entities) - Unrealized Capital Losses (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	$3,295.50	$5,044.40
Six months or less below amortized cost, Unrealized Capital Loss	101.5	148.2
More than six months and twelve months or less below amortized cost, Fair Value	543.8	183.5
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	47.9	6.7
More than twelve months below amortized cost, Fair Value	1,544.60	4,298.50
More than twelve months below amortized cost, Unrealized Capital Loss	91.3	168.7
Total, Fair Value	5,383.90	9,526.40
Total Unrealized Capital Losses	240.7	323.6
Average market value of fixed maturities with unrealized capital losses aged more than twelve months	94.40%	96.20%
U.S. Treasuries
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	35.5	81.1
Six months or less below amortized cost, Unrealized Capital Loss	0.1	0.1
More than six months and twelve months or less below amortized cost, Fair Value	0	0
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Fair Value	0	42.1
More than twelve months below amortized cost, Unrealized Capital Loss	0	0.8
Total, Fair Value	35.5	123.2
Total Unrealized Capital Losses	0.1	0.9
U.S. government agencies and authorities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	0	6.4
Six months or less below amortized cost, Unrealized Capital Loss	0	0
More than six months and twelve months or less below amortized cost, Fair Value	0	0
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Fair Value	0	0
More than twelve months below amortized cost, Unrealized Capital Loss	0	0
Total, Fair Value	0	6.4
Total Unrealized Capital Losses	0	0
State and Municipal Debt Securities [Member]
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	29.6	43
Six months or less below amortized cost, Unrealized Capital Loss	0.3	0.1
More than six months and twelve months or less below amortized cost, Fair Value	0	0
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Fair Value	1.5	1.6
More than twelve months below amortized cost, Unrealized Capital Loss	0.4	0.4
Total, Fair Value	31.1	44.6
Total Unrealized Capital Losses	0.7	0.5
U.S. corporate, state and municipalities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	1,737	2,477.90
Six months or less below amortized cost, Unrealized Capital Loss	51.7	65
More than six months and twelve months or less below amortized cost, Fair Value	254.7	76.3
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	18.8	3.6
More than twelve months below amortized cost, Fair Value	615	2,708.40
More than twelve months below amortized cost, Unrealized Capital Loss	40.9	95.3
Total, Fair Value	2,606.70	5,262.60
Total Unrealized Capital Losses	111.4	163.9
Foreign
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	1,184.60	1,869.30
Six months or less below amortized cost, Unrealized Capital Loss	47	80.6
More than six months and twelve months or less below amortized cost, Fair Value	253.1	37.8
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	28.8	1.2
More than twelve months below amortized cost, Fair Value	283.3	668.6
More than twelve months below amortized cost, Unrealized Capital Loss	18.4	36.2
Total, Fair Value	1,721	2,575.70
Total Unrealized Capital Losses	94.2	118
Residential mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	240.5	319.6
Six months or less below amortized cost, Unrealized Capital Loss	1.8	1.7
More than six months and twelve months or less below amortized cost, Fair Value	25.5	59.9
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0.3	1
More than twelve months below amortized cost, Fair Value	417.1	645.7
More than twelve months below amortized cost, Unrealized Capital Loss	14.9	18.9
Total, Fair Value	683.1	1,025.20
Total Unrealized Capital Losses	17	21.6
Commercial mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	34.8	120.7
Six months or less below amortized cost, Unrealized Capital Loss	0.6	0.5
More than six months and twelve months or less below amortized cost, Fair Value	0	3.1
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0.9
More than twelve months below amortized cost, Fair Value	2.7	0
More than twelve months below amortized cost, Unrealized Capital Loss	1.2	0
Total, Fair Value	37.5	123.8
Total Unrealized Capital Losses	1.8	1.4
Other asset-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Fair Value	33.5	126.4
Six months or less below amortized cost, Unrealized Capital Loss	0	0.2
More than six months and twelve months or less below amortized cost, Fair Value	10.5	6.4
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Fair Value	225	232.1
More than twelve months below amortized cost, Unrealized Capital Loss	15.5	17.1
Total, Fair Value	269	364.9
Total Unrealized Capital Losses	$15.50	$17.30

Investments_excluding_Consolid7

Investments (excluding Consolidated Investment Entities) - Unrealized Capital Losses 1 (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	$101.50	$148.20
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	47.9	6.7
More than twelve months below amortized cost, Unrealized Capital Loss	91.3	168.7
Total Unrealized Capital Losses	240.7	323.6
U.S. Treasuries
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	0.1	0.1
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Unrealized Capital Loss	0	0.8
Total Unrealized Capital Losses	0.1	0.9
U.S. government agencies and authorities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	0	0
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Unrealized Capital Loss	0	0
Total Unrealized Capital Losses	0	0
State and Municipal Debt Securities [Member]
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	0.3	0.1
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Unrealized Capital Loss	0.4	0.4
Total Unrealized Capital Losses	0.7	0.5
U.S. corporate, state and municipalities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	51.7	65
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	18.8	3.6
More than twelve months below amortized cost, Unrealized Capital Loss	40.9	95.3
Total Unrealized Capital Losses	111.4	163.9
Foreign
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	47	80.6
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	28.8	1.2
More than twelve months below amortized cost, Unrealized Capital Loss	18.4	36.2
Total Unrealized Capital Losses	94.2	118
Residential mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	1.8	1.7
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0.3	1
More than twelve months below amortized cost, Unrealized Capital Loss	14.9	18.9
Total Unrealized Capital Losses	17	21.6
Commercial mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	0.6	0.5
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0.9
More than twelve months below amortized cost, Unrealized Capital Loss	1.2	0
Total Unrealized Capital Losses	1.8	1.4
Other asset-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Unrealized Capital Loss	0	0.2
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0	0
More than twelve months below amortized cost, Unrealized Capital Loss	15.5	17.1
Total Unrealized Capital Losses	15.5	17.3
Fair value decline below amortized cost less than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Amortized Cost	3,412.50	5,162.10
Six months or less below amortized cost, Unrealized Capital Loss	99.4	140.2
Six months or less below amortized cost, Number of Securities	341	537
More than six months and twelve months or less below amortized cost, Amortized Cost	567	324.3
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	39	19.7
More than six months and twelve months or less below amortized cost, Number of Securities	73	68
More than twelve months below amortized cost, Amortized Cost	1,512.90	4,237.20
More than twelve months below amortized cost, Unrealized Capital Loss	67.8	134.1
More than twelve months below amortized cost, Number of Securities	324	493
Total Amortized Cost	5,492.40	9,723.60
Total Unrealized Capital Losses	206.2	294
Number of Securities	738	1,098
Fair value decline below amortized cost less than 20% | U.S. Treasuries
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	35.6	124.1
Total Unrealized Capital Losses	0.1	0.9
Number of Securities	1	8
Fair value decline below amortized cost less than 20% | U.S. government agencies and authorities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	6.4
Total Unrealized Capital Losses	0	0
Number of Securities	0	1
Fair value decline below amortized cost less than 20% | State and Municipal Debt Securities [Member]
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	30.8	44.1
Total Unrealized Capital Losses	0.4	0.2
Number of Securities	6	9
Fair value decline below amortized cost less than 20% | U.S. corporate, state and municipalities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	2,669.30	5,372.70
Total Unrealized Capital Losses	99.9	151.3
Number of Securities	207	414
Fair value decline below amortized cost less than 20% | Foreign
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	1,746.40	2,636.50
Total Unrealized Capital Losses	75.9	105.7
Number of Securities	160	239
Fair value decline below amortized cost less than 20% | Residential mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	696.4	1,042.80
Total Unrealized Capital Losses	15.2	19.5
Number of Securities	283	321
Fair value decline below amortized cost less than 20% | Commercial mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	35.5	121.2
Total Unrealized Capital Losses	0.6	0.5
Number of Securities	8	17
Fair value decline below amortized cost less than 20% | Other asset-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	278.4	375.8
Total Unrealized Capital Losses	14.1	15.9
Number of Securities	73	89
Fair value decline below amortized cost greater than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Six months or less below amortized cost, Amortized Cost	121.4	117.8
Six months or less below amortized cost, Unrealized Capital Loss	30.9	26.5
Six months or less below amortized cost, Number of Securities	12	16
More than six months and twelve months or less below amortized cost, Amortized Cost	2.7	0
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0.7	0
More than six months and twelve months or less below amortized cost, Number of Securities	3	1
More than twelve months below amortized cost, Amortized Cost	8.1	8.6
More than twelve months below amortized cost, Unrealized Capital Loss	2.9	3.1
More than twelve months below amortized cost, Number of Securities	6	7
Total Amortized Cost	132.2	126.4
Total Unrealized Capital Losses	34.5	29.6
Number of Securities	21	24
Fair value decline below amortized cost greater than 20% | U.S. Treasuries
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	0
Total Unrealized Capital Losses	0	0
Number of Securities	0	0
Fair value decline below amortized cost greater than 20% | U.S. government agencies and authorities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	0
Total Unrealized Capital Losses	0	0
Number of Securities	0	0
Fair value decline below amortized cost greater than 20% | State and Municipal Debt Securities [Member]
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	1	1
Total Unrealized Capital Losses	0.3	0.3
Number of Securities	1	1
Fair value decline below amortized cost greater than 20% | U.S. corporate, state and municipalities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	48.8	53.8
Total Unrealized Capital Losses	11.5	12.6
Number of Securities	4	4
Fair value decline below amortized cost greater than 20% | Foreign
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	68.8	57.2
Total Unrealized Capital Losses	18.3	12.3
Number of Securities	5	6
Fair value decline below amortized cost greater than 20% | Residential mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	3.7	4
Total Unrealized Capital Losses	1.8	2.1
Number of Securities	7	8
Fair value decline below amortized cost greater than 20% | Commercial mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	3.8	4
Total Unrealized Capital Losses	1.2	0.9
Number of Securities	1	1
Fair value decline below amortized cost greater than 20% | Other asset-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	6.1	6.4
Total Unrealized Capital Losses	$1.40	$1.40
Number of Securities	3	4

Investments_excluding_Consolid8

Investments (excluding Consolidated Investment Entities) - Unrealized Capital Losses 2 (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Unrealized Capital Losses	240.7	323.6
Fair value decline below amortized cost less than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	5,492.40	9,723.60
Total Unrealized Capital Losses	206.2	294
Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	515.3	835.9
Total Unrealized Capital Losses	7	11.1
Fair value decline below amortized cost less than 20% | Other ABS (Non-RMBS)
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	55	141.5
Total Unrealized Capital Losses	1.1	1.3
Fair value decline below amortized cost less than 20% | Total RMBS and Other ABS
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	974.8	1,418.60
Total Unrealized Capital Losses	29.3	35.4
Fair value decline below amortized cost greater than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	132.2	126.4
Total Unrealized Capital Losses	34.5	29.6
Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	3.4	3.6
Total Unrealized Capital Losses	1.7	1.9
Fair value decline below amortized cost greater than 20% | Other ABS (Non-RMBS)
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	1.9	1.9
Total Unrealized Capital Losses	0.4	0.5
Fair value decline below amortized cost greater than 20% | Total RMBS and Other ABS
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	9.8	10.4
Total Unrealized Capital Losses	3.2	3.5
Fixed Rate | Fair value decline below amortized cost less than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	517.1	817.2
Total Unrealized Capital Losses	7.2	12.3
Fixed Rate | Fair value decline below amortized cost greater than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	2.2	2.3
Total Unrealized Capital Losses	0.7	0.7
Floating Rate | Fair value decline below amortized cost less than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	457.7	601.4
Total Unrealized Capital Losses	22.1	23.1
Floating Rate | Fair value decline below amortized cost greater than 20%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	7.6	8.1
Total Unrealized Capital Losses	2.5	2.8
Greater than 10%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Credit Enhancement Percentage, minimum	10.00%	10.00%
Greater than 10% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	320.3	325.7
Total Unrealized Capital Losses	16.5	17.9
Greater than 10% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	4.2	4.5
Total Unrealized Capital Losses	0.9	0.9
5% - 10%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Credit Enhancement Percentage, maximum	10.00%	10.00%
Credit Enhancement Percentage, minimum	5.00%	5.00%
5% - 10% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	22.3	18.4
Total Unrealized Capital Losses	0.8	0.8
5% - 10% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	0
Total Unrealized Capital Losses	0	0
0% - 5%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Credit Enhancement Percentage, maximum	5.00%	5.00%
Credit Enhancement Percentage, minimum	0.00%	0.00%
0% - 5% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	19.7	51.1
Total Unrealized Capital Losses	0.6	0.9
0% - 5% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	0
Total Unrealized Capital Losses	0	0
0%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Credit Enhancement Percentage, maximum	0.00%	0.00%
0% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	42.2	46
Total Unrealized Capital Losses	3.3	3.4
0% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0.3	0.4
Total Unrealized Capital Losses	0.2	0.2
Greater than 100%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Loan to Value Ratio, minimum	100.00%	100.00%
Greater than 100% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	4.9	5
Total Unrealized Capital Losses	0.3	0.3
Greater than 100% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	0
Total Unrealized Capital Losses	0	0
90% - 100%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Loan to Value Ratio, minimum	90.00%	90.00%
Loan to Value Ratio, maximum	100.00%	100.00%
90% - 100% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	26.7	35.7
Total Unrealized Capital Losses	1.2	1.7
90% - 100% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	0
Total Unrealized Capital Losses	0	0
80% - 90%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Loan to Value Ratio, minimum	80.00%	80.00%
Loan to Value Ratio, maximum	90.00%	90.00%
80% - 90% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	61.9	109
Total Unrealized Capital Losses	2.9	5.2
80% - 90% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	0	0.3
Total Unrealized Capital Losses	0	0.1
Less than 80%
Available-for-sale Securities, Including Securities Pledged [Line Items]
Loan to Value Ratio, maximum	80.00%	80.00%
Less than 80% | Fair value decline below amortized cost less than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	311	291.5
Total Unrealized Capital Losses	16.8	15.8
Less than 80% | Fair value decline below amortized cost greater than 20% | Residential mortgage-backed securities non-agency
Available-for-sale Securities, Including Securities Pledged [Line Items]
Total Amortized Cost	4.5	4.6
Total Unrealized Capital Losses	1.1	1

Investments_excluding_Consolid9

Investments (excluding Consolidated Investment Entities) - Troubled Debt Restructuring (Details) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Aug. 31, 2013	Mar. 31, 2015	Dec. 31, 2014
	loan	loan	loan
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, carrying value		$39.40	$65.50
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructuring contracts		0
Private placement debt
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructuring contracts		0	0
Commercial mortgage loans
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructuring contracts	12	14	1
Troubled debt restructurings, pre-modification carrying value	60		1.9
Troubled debt restructurings, carrying value		39.4
Troubled debt restructurings post-modification carrying value	60		1.9
Amount of principal repaid on troubled debt restructurings		53.3
Cross-defaulted, cross-collateralized loans
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructuring contracts	20
Troubled debt restructurings, pre-modification carrying value	88.6
Troubled debt restructurings post-modification carrying value	$88.60

Recovered_Sheet1

Investments (excluding Consolidated Investment Entities) - Mortgage Loans (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	loan		loan
Investments, Debt and Equity Securities [Abstract]
Maximum loan to value ratio generally allowed	75.00%
Commercial mortgage loans	$10,197,200,000		$9,796,900,000
Collective valuation allowance	-2,700,000		-2,800,000
Total net commercial mortgage loans	10,194,500,000		9,794,100,000
Impairments on mortgage loans	$0	$0
Number of mortgage loans in foreclosure	0		0
Number of loans in arrears	0		0

Recovered_Sheet2

Investments (excluding Consolidated Investment Entities) - Allowance for Loan Losses (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Collective valuation allowance for losses, beginning of period	$2.80	$3.80
Addition to/(release of) allowance for losses	-0.1	-1
Collective valuation allowance for losses, end of period	$2.70	$2.80

Recovered_Sheet3

Investments (excluding Consolidated Investment Entities) - Impaired Loans (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Investments, Debt and Equity Securities [Abstract]
Impaired loans without valuation allowances	$46.60	$72.80
Less: Allowances for losses on impaired loans	0	0
Impaired loans, net	46.6	72.8
Unpaid principal balance of impaired loans	$49.10	$75.30

Recovered_Sheet4

Investments (excluding Consolidated Investment Entities) - Impaired Loans 2 (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Investments, Debt and Equity Securities [Abstract]
Troubled debt restructured loans	$39.40	$65.50

Recovered_Sheet5

Investments (excluding Consolidated Investment Entities) - Impaired Loans 3 (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Impaired loans, average investment during the period (amortized cost)	$59.70	$94.20
Interest income recognized on impaired loans, on an accrual basis	0.9	1.3
Interest income recognized on impaired loans, on a cash basis	1	1
Interest income recognized on troubled debt restructured loans, on an accrual basis	$0.80	$1.20

Recovered_Sheet6

Investments (excluding Consolidated Investment Entities) - Loans by Loan to Value (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of Loans by Loan to Value Ratio [Line Items]
Benchmark loan to value ratio, greater than indicates unpaid loan amount exceeds underlying collateral	100.00%	100.00%
Total Commercial mortgage loans	$10,197.20	$9,796.90
0% - 50%
Schedule of Loans by Loan to Value Ratio [Line Items]
Loan to Value Ratio, minimum	0.00%	0.00%
Loan to Value Ratio, maximum	50.00%	50.00%
Commercial mortgage loans	1,339	1,460.60
50% - 60%
Schedule of Loans by Loan to Value Ratio [Line Items]
Loan to Value Ratio, minimum	50.00%	50.00%
Loan to Value Ratio, maximum	60.00%	60.00%
Commercial mortgage loans	2,560.20	2,261.60
60% - 70%
Schedule of Loans by Loan to Value Ratio [Line Items]
Loan to Value Ratio, minimum	60.00%	60.00%
Loan to Value Ratio, maximum	70.00%	70.00%
Commercial mortgage loans	5,764	5,514.80
70% - 80%
Schedule of Loans by Loan to Value Ratio [Line Items]
Loan to Value Ratio, minimum	70.00%	70.00%
Loan to Value Ratio, maximum	80.00%	80.00%
Commercial mortgage loans	516	541.3
80% and above
Schedule of Loans by Loan to Value Ratio [Line Items]
Loan to Value Ratio, minimum	80.00%	80.00%
Commercial mortgage loans	$18	$18.60

Recovered_Sheet7

Investments (excluding Consolidated Investment Entities) - Loans by Debt Service Coverage Ratio (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of Loans by Debt Service Coverage Ratio [Line Items]
Benchmark debt service coverage ratio, less than indicates property's operations income is less than debt payments	100.00%	100.00%
Commercial mortgage loans secured by land or construction loans	$47.60	$16
Total Commercial mortgage loans	10,197.20	9,796.90
Greater than 1.5x
Schedule of Loans by Debt Service Coverage Ratio [Line Items]
Debt Service Coverage Ratio, minimum	150.00%	150.00%
Commercial mortgage loans	7,245.40	7,096.20
1.25x - 1.5x
Schedule of Loans by Debt Service Coverage Ratio [Line Items]
Debt Service Coverage Ratio, minimum	125.00%	125.00%
Debt Service Coverage Ratio, maximum	150.00%	150.00%
Commercial mortgage loans	1,699.70	1,392.10
1.0x - 1.25x
Schedule of Loans by Debt Service Coverage Ratio [Line Items]
Debt Service Coverage Ratio, minimum	100.00%	100.00%
Debt Service Coverage Ratio, maximum	125.00%	125.00%
Commercial mortgage loans	871.1	906.7
Less than 1.0x
Schedule of Loans by Debt Service Coverage Ratio [Line Items]
Debt Service Coverage Ratio, maximum	100.00%	100.00%
Commercial mortgage loans	$333.40	$385.90

Recovered_Sheet8

Investments (excluding Consolidated Investment Entities) - Loans by U.S. Region (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	$10,197.20	$9,796.90
Loans by region percentage of total loans	100.00%	100.00%
Pacific
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	2,566.50	2,395.90
Loans by region percentage of total loans	25.20%	24.60%
South Atlantic
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	2,214.70	2,028
Loans by region percentage of total loans	21.70%	20.70%
Middle Atlantic
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	1,447	1,402
Loans by region percentage of total loans	14.20%	14.30%
West South Central
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	1,145.70	1,147.70
Loans by region percentage of total loans	11.20%	11.70%
East North Central
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	1,049.50	1,030.80
Loans by region percentage of total loans	10.30%	10.50%
Mountain
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	852.9	832.2
Loans by region percentage of total loans	8.40%	8.50%
West North Central
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	501.8	514
Loans by region percentage of total loans	4.90%	5.20%
East South Central
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	214.3	249.3
Loans by region percentage of total loans	2.10%	2.50%
New England
Open Option Contracts Written [Line Items]
Total Commercial mortgage loans	$204.80	$197
Loans by region percentage of total loans	2.00%	2.00%

Recovered_Sheet9

Investments (excluding Consolidated Investment Entities) - Loans by Property Type (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Investment Holdings [Line Items]
Total Commercial mortgage loans	$10,197.20	$9,796.90
Loans by property type percentage of total loans	100.00%	100.00%
Retail
Investment Holdings [Line Items]
Total Commercial mortgage loans	3,539.20	3,408.40
Loans by property type percentage of total loans	34.60%	34.80%
Industrial
Investment Holdings [Line Items]
Total Commercial mortgage loans	2,177.70	2,283
Loans by property type percentage of total loans	21.40%	23.30%
Apartments
Investment Holdings [Line Items]
Total Commercial mortgage loans	1,762.30	1,680.70
Loans by property type percentage of total loans	17.30%	17.20%
Office
Investment Holdings [Line Items]
Total Commercial mortgage loans	1,274.70	1,246.50
Loans by property type percentage of total loans	12.50%	12.70%
Hotel/Motel
Investment Holdings [Line Items]
Total Commercial mortgage loans	387.3	382.7
Loans by property type percentage of total loans	3.80%	3.90%
Mixed Use
Investment Holdings [Line Items]
Total Commercial mortgage loans	303.7	346.5
Loans by property type percentage of total loans	3.00%	3.50%
Other
Investment Holdings [Line Items]
Total Commercial mortgage loans	$752.30	$449.10
Loans by property type percentage of total loans	7.40%	4.60%

Recovered_Sheet10

Investments (excluding Consolidated Investment Entities) - Mortgages by Year of Origination (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Investment [Line Items]
Total Commercial mortgage loans	$10,197.20	$9,796.90
Year of Origination 2015
Investment [Line Items]
Total Commercial mortgage loans	698.8	0
Year of Origination 2014
Investment [Line Items]
Total Commercial mortgage loans	1,939.50	1,940.90
Year of Origination 2013
Investment [Line Items]
Total Commercial mortgage loans	2,113.30	2,137.50
Year of Origination 2012
Investment [Line Items]
Total Commercial mortgage loans	1,632.50	1,642.80
Year of Origination 2011
Investment [Line Items]
Total Commercial mortgage loans	1,499.10	1,533.50
Year of Origination 2010
Investment [Line Items]
Total Commercial mortgage loans	249.1	251
Year of Origination 2009 and prior
Investment [Line Items]
Total Commercial mortgage loans	$2,064.90	$2,291.20

Recovered_Sheet11

Investments (excluding Consolidated Investment Entities) - OTTI (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	security	security
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	$4.90	$3.30
No. of Securities	42	44
U.S. corporate securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	1	0.4
No. of Securities	3	1
Foreign
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0.8	0
No. of Securities	2	0
Residential mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	2.9	1.6
No. of Securities	35	37
Commercial mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0	0.2
No. of Securities	0	2
Other asset-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0.1	0.1
No. of Securities	1	2
Equity securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0.1	1
No. of Securities	1	2
Intent related impairment
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	2.5
No. of Securities	8	2
Write-down related to intent impairments	2.5	0.2
Intent related impairment | U.S. corporate securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	1
No. of Securities	3	0
Write-down related to intent impairments		0
Intent related impairment | Foreign
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0.8
No. of Securities	2	0
Write-down related to intent impairments		0
Intent related impairment | Residential mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0.6
No. of Securities	2	0
Write-down related to intent impairments		0
Intent related impairment | Commercial mortgage-backed
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0
No. of Securities	0	2
Write-down related to intent impairments		0.2
Intent related impairment | Other asset-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0.1
No. of Securities	1	0
Write-down related to intent impairments		0
Intent related impairment | Equity securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	0
No. of Securities	0	0
Write-down related to intent impairments		0
Credit related impairment
Available-for-sale Securities, Including Securities Pledged [Line Items]
Impairment	2.4
Write-downs related to credit impairments		$3.10

Recovered_Sheet12

Investments (excluding Consolidated Investment Entities) - OTTI OCI (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Other than Temporary Impairment, Recognized in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning	$86.80	$102.80
Additional credit impairments:
On securities not previously impaired	0	1.1
On securities previously impaired	2.3	1
Reductions:
Increase in cash flows	0.6	0
Securities sold, matured, prepaid, or paid down	4	3.8
Balance, ending	$84.50	$101.10

Recovered_Sheet13

Investments (excluding Consolidated Investment Entities) - Net Investment Income (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	$1,176.30	$1,146.80
Less: Investment expenses	1.7	1.2
Net investment income	1,174.60	1,145.60
Fixed maturities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	996.4	984.8
Number of investments not producing income	9.2		0.1
Equity securities, available-for-sale
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	2.7	3.8
Mortgage loans on real estate
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	132.8	115.3
Policy loans
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	28.2	28
Short-term investments and cash equivalents
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	0.9	0.8
Other
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	$15.30	$14.10

Recovered_Sheet14

Investments (excluding Consolidated Investment Entities) - Net Realized Capital Gains (Losses) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	($264.50)	($190.60)
After-tax net realized capital gains (losses), after tax	-172	-118.3
Proceeds from sale of investments
Proceeds on sales	1,115.70	1,494.90
Gross gains	10.4	39.7
Gross losses	12.4	19.8
Derivatives
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	78.2	53.8
Fixed maturities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	-1.8	-3.3
Product guarantees
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	-322.1	-255.1
Other investments
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	0.4	2.1
Fixed maturities, available-for-sale, including securities pledged
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	-0.9	13.7
Fixed maturities, at fair value using the fair value option
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	-18.2	-18.9
Equity securities, available-for-sale
Available-for-sale Securities, Including Securities Pledged [Line Items]
Realized capital gains (losses)	($0.10)	$17.10

Derivative_Financial_Instrumen2

Derivative Financial Instruments - Notional and Fair Values (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	$2,241,000,000	$1,935,400,000
Derivatives, Liability Fair Value	5,161,500,000	4,648,500,000
Interest rate contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	65,866,500,000	67,776,400,000
Interest rate contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	64,592,600,000	66,474,000,000
Interest rate contracts | Not Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	1,508,500,000	1,108,000,000
Derivatives, Liability Fair Value	737,500,000	563,200,000
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	1,455,600,000	1,547,800,000
Foreign exchange contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	1,280,900,000	1,373,100,000
Foreign exchange contracts | Not Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	58,700,000	45,300,000
Derivatives, Liability Fair Value	45,400,000	26,800,000
Equity contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	13,633,500,000	13,576,100,000
Equity contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	21,482,200,000	21,165,700,000
Equity contracts | Not Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	359,500,000	483,100,000
Derivatives, Liability Fair Value	136,600,000	209,900,000
Credit contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	4,221,000,000	4,221,000,000
Credit contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	4,221,000,000	4,221,000,000
Credit contracts | Not Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	39,800,000	40,900,000
Derivatives, Liability Fair Value	40,500,000	36,000,000
Managed Custody Guarantees [Member] | Not Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value		0
Derivatives, Liability Fair Value	800,000	0
Derivative Asset, Fair Value, Gross Liability	0
Cash Flow Hedging | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	711,500,000	736,000,000
Cash Flow Hedging | Interest rate contracts | Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	122,800,000	114,600,000
Derivatives, Liability Fair Value	0	0
Cash Flow Hedging | Foreign exchange contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	174,700,000	174,700,000
Cash Flow Hedging | Foreign exchange contracts | Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	37,400,000	25,300,000
Derivatives, Liability Fair Value	0	0
Fair Value Hedging | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	562,400,000	566,400,000
Fair Value Hedging | Interest rate contracts | Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	300,000	2,400,000
Derivatives, Liability Fair Value	14,300,000	13,400,000
Within fixed maturity investments
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	114,000,000	115,800,000
Derivatives, Liability Fair Value	0	0
Within annuity products
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	0	0
Derivatives, Liability Fair Value	4,022,900,000	3,659,600,000
Within reinsurance agreements
Derivatives, Fair Value [Line Items]
Derivatives, Asset Fair Value	0	0
Derivatives, Liability Fair Value	$163,500,000	$139,600,000

Derivative_Financial_Instrumen3

Derivative Financial Instruments Derivative Financial Instruments - Offsetting Assets and Liabilities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Offsetting Assets and Liabilities [Line Items]
Collateralized loan obligations notes, at fair value using the fair value option	$6,408,900,000	$6,838,100,000
Derivatives, Asset Fair Value	2,079,000,000	1,714,900,000
Derivatives, Liability Fair Value	967,900,000	841,100,000
Counterparty netting, Assets	-812,600,000	-721,300,000
Counterparty netting, Liabilities	-812,600,000	-721,300,000
Cash collateral netting, Assets	-1,033,500,000	-661,100,000
Cash collateral netting, Liabilities	-59,800,000	-35,900,000
Securities collateral netting, Assets	-70,800,000	-158,900,000
Securities collateral netting, Liabilities	-53,000,000	-46,900,000
Net receivables/payables, Assets	162,100,000	173,600,000
Net receivables/payables, Liabilities	42,500,000	37,000,000
Credit contracts
Offsetting Assets and Liabilities [Line Items]
Derivative, Notional Amount	4,221,000,000	4,221,000,000
Derivatives, Asset Fair Value	39,800,000	40,900,000
Derivatives, Liability Fair Value	40,500,000	36,000,000
Equity contracts
Offsetting Assets and Liabilities [Line Items]
Derivative, Notional Amount	13,633,500,000	13,576,100,000
Derivatives, Asset Fair Value	311,500,000	378,400,000
Derivatives, Liability Fair Value	130,200,000	201,700,000
Foreign exchange contracts
Offsetting Assets and Liabilities [Line Items]
Derivative, Notional Amount	1,455,600,000	1,547,800,000
Derivatives, Asset Fair Value	96,100,000	70,600,000
Derivatives, Liability Fair Value	45,400,000	26,800,000
Interest rate contracts
Offsetting Assets and Liabilities [Line Items]
Derivative, Notional Amount	65,866,500,000	67,776,400,000
Derivatives, Asset Fair Value	1,631,600,000	1,225,000,000
Derivatives, Liability Fair Value	751,800,000	576,600,000
Securities pledged as collateral
Offsetting Assets and Liabilities [Line Items]
Collateralized loan obligations notes, at fair value using the fair value option	71,100,000	159,300,000
Fair value of securities delivered as collateral	$660,900,000	$638,700,000

Derivative_Financial_Instrumen4

Derivative Financial Instruments - Net Realized Gains (Losses) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	($269.60)	($221.30)
Other Net Realized Capital Gains (Losses) | Interest rate contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	237.1	204.2
Other Net Realized Capital Gains (Losses) | Foreign exchange contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	66	-1.7
Other Net Realized Capital Gains (Losses) | Equity contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	-217.8	-144.9
Other Net Realized Capital Gains (Losses) | Credit contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	-3.1	0.8
Within fixed maturity investments | Other Net Realized Capital Gains (Losses)
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	-1.8	-3.3
Within annuity products | Other Net Realized Capital Gains (Losses)
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	-321.3	-255.1
Within reinsurance agreements | Policyholder Benefits
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	-23.9	-16.7
Cash Flow Hedging | Other Net Realized Capital Gains (Losses) | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	0.2	0.2
Cash Flow Hedging | Other Net Realized Capital Gains (Losses) | Foreign exchange contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	0.5	0.4
Fair Value Hedging | Other Net Realized Capital Gains (Losses) | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Net realized gains (losses) on derivatives	($4.70)	($5.20)

Derivative_Financial_Instrumen5

Derivative Financial Instruments - Collateral and Credit Default Swaps (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Collateralized loan obligations notes, at fair value using the fair value option	$6,408.90	$6,838.10
Fair value of credit default swaps included in Derivatives assets	2,241	1,935.40
Fair value of credit default swaps included in Derivatives liabilities	5,161.50	4,648.50
Credit Derivative, Recourse Provisions	0	0
Securities pledged as collateral
Derivatives, Fair Value [Line Items]
Collateralized loan obligations notes, at fair value using the fair value option	71.1	159.3
Credit contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Maximum potential future net exposure on sale of credit default swaps	1,700	1,700
Purchased protection on credit default swaps	500	500
Maturity period of derivative	5 years	5 years
Credit contracts | Not Designated as Hedging Instrument | Derivatives
Derivatives, Fair Value [Line Items]
Fair value of credit default swaps included in Derivatives assets	39.8	40.9
Fair value of credit default swaps included in Derivatives liabilities	40.5	36
Over the counter | Cash collateral, included in Payables
Derivatives, Fair Value [Line Items]
Collateralized loan obligations notes, at fair value using the fair value option	889.8	515.8
Cleared derivative contract | Cash collateral, included in Payables
Derivatives, Fair Value [Line Items]
Collateralized loan obligations notes, at fair value using the fair value option	$105.30	$119.10

Fair_Value_Measurements_exclud2

Fair Value Measurements (excluding Consolidated Investment Entities) - Fair Value Measurement (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, available-for-sale	$283.60	$271.80
Derivatives	2,127	1,819.60
Other investments	97	110.3
Derivatives	974.3	849.3
Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	76,302.40	74,659.40
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,484.60	5,069.30
Assets held in separate accounts	107,039.40	106,007.80
Total assets	190,237	187,827.90
Percentage of Level to total	100.00%	100.00%
Total liabilities	5,161.50	4,648.50
Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	3,112.30	3,262
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,337	4,924.80
Assets held in separate accounts	101,772.70	100,692.40
Total assets	109,495.40	109,199.40
Percentage of Level to total	57.56%	58.14%
Total liabilities	6.3	8.2
Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	71,459.50	69,739.80
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	141.6	138.5
Assets held in separate accounts	5,266.10	5,313.10
Total assets	78,851.50	76,814.50
Percentage of Level to total	41.45%	40.90%
Total liabilities	1,109.40	961
Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	1,730.60	1,657.60
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	6	6
Assets held in separate accounts	0.6	2.3
Total assets	1,890.10	1,814
Percentage of Level to total	0.99%	0.97%
Total liabilities	4,045.80	3,679.30
Interest rate contracts | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	1,631.60	1,225
Derivatives	751.8	576.6
Interest rate contracts | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Derivatives	0	0
Interest rate contracts | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	1,631.60	1,225
Derivatives	751.8	576.6
Interest rate contracts | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Derivatives	0	0
Foreign exchange contracts | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	96.1	70.6
Derivatives	45.4	26.8
Foreign exchange contracts | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Derivatives	0	0
Foreign exchange contracts | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	96.1	70.6
Derivatives	45.4	26.8
Foreign exchange contracts | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Derivatives	0	0
Equity contracts | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	359.5	483.1
Derivatives	136.6	209.9
Equity contracts | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	48	104.7
Derivatives	6.3	8.2
Equity contracts | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	228	296.6
Derivatives	130.3	201.7
Equity contracts | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	83.5	81.8
Derivatives	0	0
Credit contracts | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	39.8	40.9
Derivatives	40.5	36
Credit contracts | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Derivatives	0	0
Credit contracts | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	28.6	30.9
Derivatives	18.4	16.3
Credit contracts | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	11.2	10
Derivatives	22.1	19.7
Reinsurance agreements | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	163.5	139.6
Reinsurance agreements | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Reinsurance agreements | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	163.5	139.6
Reinsurance agreements | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
FIA | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	2,015.60	1,970
FIA | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
FIA | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
FIA | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	2,015.60	1,970
GMAB/GMWB/GMWBL | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	1,860	1,586.70
GMAB/GMWB/GMWBL | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
GMAB/GMWB/GMWBL | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
GMAB/GMWB/GMWBL | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	1,860	1,586.70
Stabilizer and MCGs | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	148.1	102.9
Stabilizer and MCGs | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Stabilizer and MCGs | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Stabilizer and MCGs | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	148.1	102.9
Fixed maturities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	76,302.40	74,659.40
U.S. Treasuries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	3,781.20	3,904
U.S. Treasuries | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	3,781.20	3,904
U.S. Treasuries | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	3,112.30	3,262
U.S. Treasuries | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	668.9	642
U.S. Treasuries | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
U.S. corporate securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	42,359.30	40,740.80
U.S. corporate securities | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	42,359.30	40,740.80
U.S. corporate securities | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
U.S. corporate securities | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	41,249.70	39,658.20
U.S. corporate securities | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	1,109.60	1,082.60
U.S. government agencies and authorities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	442.1	435.9
U.S. government agencies and authorities | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	442.1	435.9
U.S. government agencies and authorities | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
U.S. government agencies and authorities | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	442.1	435.9
U.S. government agencies and authorities | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
State, municipalities and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	798.1	694.4
State, municipalities and political subdivisions | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	798.1	694.4
State, municipalities and political subdivisions | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
State, municipalities and political subdivisions | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	798.1	694.4
State, municipalities and political subdivisions | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
Foreign
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	911.3	891.3
Foreign | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	16,713	16,444.20
Foreign | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
Foreign | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	16,210.50	15,995.50
Foreign | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	502.5	448.7
Residential mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	6,560.40	6,656.80
Residential mortgage-backed | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	6,560.40	6,656.80
Residential mortgage-backed | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
Residential mortgage-backed | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	6,451.20	6,562.60
Residential mortgage-backed | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	109.2	94.2
Commercial mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	4,185.90	4,188.20
Commercial mortgage-backed | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	4,185.90	4,188.20
Commercial mortgage-backed | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
Commercial mortgage-backed | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	4,185.90	4,166.20
Commercial mortgage-backed | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	22
Other asset-backed securities | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	1,462.40	1,595.10
Other asset-backed securities | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	0	0
Other asset-backed securities | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	1,453.10	1,585
Other asset-backed securities | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed maturities, including securities pledged	9.3	10.1
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, available-for-sale	283.6	271.8
Equity securities | Measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, available-for-sale	283.6	271.8
Equity securities | Measured at fair value on a recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, available-for-sale	225.4	215.5
Equity securities | Measured at fair value on a recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, available-for-sale	0	0
Equity securities | Measured at fair value on a recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities, available-for-sale	$58.20	$56.30

Fair_Value_Measurements_exclud3

Fair Value Measurements (excluding Consolidated Investment Entities) - Level 3 Financial Instruments (Details) (Measured at fair value on a recurring basis, Level 3, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Assets held in separate accounts
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Assets, beginning balance	$2.30	$13.10
Total Realized/Unrealized Gains (Losses) Included in Net income	0	0
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	0	5.8
Issuances	0	0
Sales	0	-1
Settlements	0	0
Investments transferred from Level 2 to Level 3	0	0
Transfers out of Level 3	-1.7	0
Fair Value, Assets, ending balance	0.6	17.9
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	0
FIA
Derivatives Rollforward:
Fair Value, Derivatives, beginning balance	-1,970	-1,736.70
Total Realized/Unrealized Gains (Losses) Included in Net income	-45.7	-42.4
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	0	0
Issuances	-40.5	-50.3
Sales	0	0
Settlements	40.6	21.4
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Derivatives, ending balance	-2,015.60	-1,808
Change In Unrealized Gains (Losses) Included in Earnings	0	0
GMAB/GMWB/GMWBL
Derivatives Rollforward:
Fair Value, Derivatives, beginning balance	-1,586.70	-908.9
Total Realized/Unrealized Gains (Losses) Included in Net income	-232.3	-195.9
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	0	0
Issuances	-41.1	-38.6
Sales	0	0
Settlements	0.1	0.1
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Derivatives, ending balance	-1,860	-1,143.30
Change In Unrealized Gains (Losses) Included in Earnings	0	0
Stabilizer and MCGs
Derivatives Rollforward:
Fair Value, Derivatives, beginning balance	-102.9	0
Total Realized/Unrealized Gains (Losses) Included in Net income	-44.1	-16.8
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	0	0
Issuances	-1.1	-1.2
Sales	0	0
Settlements	0	0
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Derivatives, ending balance	-148.1	-18
Change In Unrealized Gains (Losses) Included in Earnings	0	0
Other derivatives, net
Derivatives Rollforward:
Fair Value, Derivatives, beginning balance	72.1	80.3
Total Realized/Unrealized Gains (Losses) Included in Net income	0.4	1
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	8.3	7.4
Issuances	0	0
Sales	0	0
Settlements	-8.2	-21.6
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Derivatives, ending balance	72.6	67.1
Change In Unrealized Gains (Losses) Included in Earnings	0.6	-12.7
U.S. government agencies and authorities
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	0	14.4
Total Realized/Unrealized Gains (Losses) Included in Net income	0	0
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	0	0
Issuances	0	0
Sales	0	0
Settlements	0	-0.2
Investments transferred from Level 2 to Level 3	0	0
Transfers out of Level 3	0	-7
Fair Value, Fixed maturities, including securities pledged, ending balance	0	7.2
Change In Unrealized Gains (Losses) Included in Earnings	0	0
U.S. corporate, state and municipalities
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	1,082.60	456.5
Total Realized/Unrealized Gains (Losses) Included in Net income	0.1	0
Total Realized/Unrealized Gains (Losses) Included in OCI	2.1	4.5
Purchases	85.1	108
Issuances	0	0
Sales	0	0
Settlements	-109.9	-10.1
Investments transferred from Level 2 to Level 3	49.6	12.8
Transfers out of Level 3	0	-3
Fair Value, Fixed maturities, including securities pledged, ending balance	1,109.60	568.7
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0.1	0
Foreign
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	448.7	154.3
Total Realized/Unrealized Gains (Losses) Included in Net income	0.6	0
Total Realized/Unrealized Gains (Losses) Included in OCI	-1	1.6
Purchases	12.2	0
Issuances	0	0
Sales	0	0
Settlements	-11.7	-0.2
Investments transferred from Level 2 to Level 3	53.7	0
Transfers out of Level 3	0	-25
Fair Value, Fixed maturities, including securities pledged, ending balance	502.5	130.7
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	0
Residential mortgage-backed securities
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	94.2	98.6
Total Realized/Unrealized Gains (Losses) Included in Net income	-2.5	-2.8
Total Realized/Unrealized Gains (Losses) Included in OCI	-0.2	0.8
Purchases	5.3	0
Issuances	0	0
Sales	0	0
Settlements	-0.1	-0.6
Investments transferred from Level 2 to Level 3	12.5	8.8
Transfers out of Level 3	0	-0.4
Fair Value, Fixed maturities, including securities pledged, ending balance	109.2	104.4
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	-2.5	-2.8
Commercial mortgage-backed securities
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	22	0
Total Realized/Unrealized Gains (Losses) Included in Net income	0	0
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	0	24.9
Issuances	0	0
Sales	0	0
Settlements	0	0
Investments transferred from Level 2 to Level 3	0	0
Transfers out of Level 3	-22	0
Fair Value, Fixed maturities, including securities pledged, ending balance	0	24.9
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	0
Other asset-backed securities
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	10.1	59.2
Total Realized/Unrealized Gains (Losses) Included in Net income	0	3.1
Total Realized/Unrealized Gains (Losses) Included in OCI	0	-2.5
Purchases	0	0
Issuances	0	0
Sales	0	0
Settlements	-0.8	-17.6
Investments transferred from Level 2 to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Fixed maturities, including securities pledged, ending balance	9.3	42.2
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	0	1
Fixed maturities, available-for-sale, including securities pledged
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	1,657.60	783
Total Realized/Unrealized Gains (Losses) Included in Net income	-1.8	0.3
Total Realized/Unrealized Gains (Losses) Included in OCI	0.9	4.4
Purchases	102.6	132.9
Issuances	0	0
Sales	0	0
Settlements	-122.5	-28.7
Investments transferred from Level 2 to Level 3	115.8	21.6
Transfers out of Level 3	-22	-35.4
Fair Value, Fixed maturities, including securities pledged, ending balance	1,730.60	878.1
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	-2.4	-1.8
Equity securities
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Assets, beginning balance	56.3	55.3
Total Realized/Unrealized Gains (Losses) Included in Net income	-0.1	-0.9
Total Realized/Unrealized Gains (Losses) Included in OCI	2	2.8
Purchases	0	0
Issuances	0	0
Sales	0	-0.1
Settlements	0	0
Investments transferred from Level 2 to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Assets, ending balance	58.2	57.1
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	-0.1	-0.9
Short-term investments and cash equivalents
Fixed Maturities and Equity Securities Rollforward:
Fair Value, Fixed maturities, including securities pledged, beginning balance	6	0
Total Realized/Unrealized Gains (Losses) Included in Net income	0	0
Total Realized/Unrealized Gains (Losses) Included in OCI	0	0
Purchases	0	0
Issuances	0	0
Sales	0	0
Settlements	0	0
Investments transferred from Level 2 to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Fixed maturities, including securities pledged, ending balance	6	0
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings	$0	$0

Fair_Value_Measurements_exclud4

Fair Value Measurements (excluding Consolidated Investment Entities) - Significant Unobservable Inputs (Details) (USD $)	3 Months Ended	12 Months Ended
In Billions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Actuarial Assumptions, Benefit Utilization, Percent of Policyholders Taking Systematic Withdrawals	35.00%	33.00%
Fair Value Inputs, Actuarial Assumptions, Benefit Utilization, Percent of Policyholders Assumed to Begin Systematic Withdrawals	85.00%	85.00%
Fair Value Inputs, Actuarial Assumptions, Benefit Utilization, Percent of Policies the Company Assumes Will Never Withdraw	15.00%	15.00%
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Average Expected Delay	5 years 7 months 18 days	5 years 9 months 18 days
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	$15.70	$15.80
Actuarial Assumptions, Lapses, threshold percentage	85.00%	85.00%
Actuarial Assumptions, Policyholder Deposits, threshold percentage	85.00%	85.00%
Stabilizer and MCGs
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Percentage of Plans	100.00%	100.00%
Stabilizer (Investment Only) and MCG Contracts
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Percentage of Plans	88.00%	87.00%
Stabilizer with Recordkeeping Agreements
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Percentage of Plans	12.00%	13.00%
Investment contract | GMWB/GMWBL | Minimum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	15.00%	15.00%
Interest rate implied volatility	0.20%	0.20%
Equity Funds	49.00%	49.00%
Equity and Fixed Income Funds	-38.00%	-38.00%
Interest Rates and Equity Funds	-32.00%	-32.00%
Nonperformance risk	0.14%	0.13%
Benefit Utilization	85.00%	85.00%
Partial Withdrawals	0.00%	0.00%
Lapses	0.08%	0.08%
Policyholder Deposits	0.00%	0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Investment contract | GMWB/GMWBL | Maximum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	25.00%	25.00%
Interest rate implied volatility	18.00%	16.00%
Equity Funds	98.00%	98.00%
Equity and Fixed Income Funds	62.00%	62.00%
Interest Rates and Equity Funds	-3.00%	-4.00%
Nonperformance risk	1.10%	1.10%
Benefit Utilization	100.00%	100.00%
Partial Withdrawals	10.00%	10.00%
Lapses	24.00%	24.00%
Policyholder Deposits	0.00%	0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Investment contract | GMAB | Minimum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	15.00%	15.00%
Interest rate implied volatility	0.20%	0.20%
Equity Funds	49.00%	49.00%
Equity and Fixed Income Funds	-38.00%	-38.00%
Interest Rates and Equity Funds	-32.00%	-32.00%
Nonperformance risk	0.14%	0.13%
Benefit Utilization	0.00%	0.00%
Partial Withdrawals	0.00%	0.00%
Lapses	0.08%	0.08%
Policyholder Deposits	0.00%	0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Investment contract | GMAB | Maximum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	25.00%	25.00%
Interest rate implied volatility	18.00%	16.00%
Equity Funds	98.00%	98.00%
Equity and Fixed Income Funds	62.00%	62.00%
Interest Rates and Equity Funds	-3.00%	-4.00%
Nonperformance risk	1.10%	1.10%
Benefit Utilization	0.00%	0.00%
Partial Withdrawals	10.00%	10.00%
Lapses	31.00%	31.00%
Policyholder Deposits	0.00%	0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Investment contract | FIA | Minimum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	0.00%	0.00%
Interest rate implied volatility	0.00%	0.00%
Equity Funds	0.00%	0.00%
Equity and Fixed Income Funds	0.00%	0.00%
Interest Rates and Equity Funds	0.00%	0.00%
Nonperformance risk	0.14%	0.13%
Benefit Utilization	0.00%	0.00%
Partial Withdrawals	0.00%	0.00%
Lapses	0.00%	0.00%
Policyholder Deposits	0.00%	0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Investment contract | FIA | Maximum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	0.00%	0.00%
Interest rate implied volatility	0.00%	0.00%
Equity Funds	0.00%	0.00%
Equity and Fixed Income Funds	0.00%	0.00%
Interest Rates and Equity Funds	0.00%	0.00%
Nonperformance risk	1.10%	1.10%
Benefit Utilization	0.00%	0.00%
Partial Withdrawals	5.00%	5.00%
Lapses	60.00%	60.00%
Policyholder Deposits	0.00%	0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Derivative Financial Instruments, Liabilities | Stabilizer and MCGs | Minimum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	0.00%	0.00%
Interest rate implied volatility	0.20%	0.20%
Equity Funds	0.00%	0.00%
Equity and Fixed Income Funds	0.00%	0.00%
Interest Rates and Equity Funds	0.00%	0.00%
Nonperformance risk	0.14%	0.13%
Benefit Utilization	0.00%	0.00%
Partial Withdrawals	0.00%	0.00%
Lapses	0.00%	0.00%
Policyholder Deposits	0.00%	0.00%
Actuarial Assumptions, Lapses under percent threshold	0.00%	0.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	0.00%	0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Derivative Financial Instruments, Liabilities | Stabilizer and MCGs | Maximum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Long-term equity implied volatility	0.00%	0.00%
Interest rate implied volatility	7.80%	7.60%
Equity Funds	0.00%	0.00%
Equity and Fixed Income Funds	0.00%	0.00%
Interest Rates and Equity Funds	0.00%	0.00%
Nonperformance risk	1.10%	1.10%
Benefit Utilization	0.00%	0.00%
Partial Withdrawals	0.00%	0.00%
Lapses	50.00%	50.00%
Policyholder Deposits	65.00%	65.00%
Actuarial Assumptions, Lapses under percent threshold	25.00%	25.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	30.00%	25.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	0.00%
Derivative Financial Instruments, Liabilities | Stabilizer (Investment Only) and MCG Contracts | Minimum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	0.00%	0.00%
Policyholder Deposits	0.00%	0.00%
Actuarial Assumptions, Lapses under percent threshold	0.00%	0.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	0.00%	0.00%
Derivative Financial Instruments, Liabilities | Stabilizer (Investment Only) and MCG Contracts | Maximum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	25.00%	30.00%
Policyholder Deposits	35.00%	45.00%
Actuarial Assumptions, Lapses under percent threshold	15.00%	15.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	15.00%	15.00%
Derivative Financial Instruments, Liabilities | Stabilizer with Recordkeeping Agreements | Minimum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	0.00%	0.00%
Policyholder Deposits	0.00%	0.00%
Actuarial Assumptions, Lapses under percent threshold	0.00%	0.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	0.00%	0.00%
Derivative Financial Instruments, Liabilities | Stabilizer with Recordkeeping Agreements | Maximum | Market Approach Valuation Technique
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	50.00%	50.00%
Policyholder Deposits	65.00%	65.00%
Actuarial Assumptions, Lapses under percent threshold	25.00%	25.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	30.00%	25.00%
In the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	13.5	13.8
In the Money | During Surrender Charge Period | GMWB/GMWBL
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	6.3	6.7
In the Money | During Surrender Charge Period | GMWB/GMWBL | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	0.08%	0.08%
In the Money | During Surrender Charge Period | GMWB/GMWBL | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	6.30%	6.30%
In the Money | During Surrender Charge Period | GMAB
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	0	0
In the Money | During Surrender Charge Period | GMAB | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	0.08%	0.08%
In the Money | During Surrender Charge Period | GMAB | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	8.20%	8.20%
In the Money | After Surrender Charge Period | GMWB/GMWBL
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	7.2	7.2
In the Money | After Surrender Charge Period | GMWB/GMWBL | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	1.70%	1.70%
In the Money | After Surrender Charge Period | GMWB/GMWBL | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	21.00%	21.00%
In the Money | After Surrender Charge Period | GMAB
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	0	0
In the Money | After Surrender Charge Period | GMAB | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	2.50%	2.50%
In the Money | After Surrender Charge Period | GMAB | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	21.00%	21.00%
Out of the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	2.2	2
Out of the Money | During Surrender Charge Period | GMWB/GMWBL
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	1.4	1.2
Out of the Money | During Surrender Charge Period | GMWB/GMWBL | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	0.36%	0.36%
Out of the Money | During Surrender Charge Period | GMWB/GMWBL | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	7.00%	7.00%
Out of the Money | During Surrender Charge Period | GMAB
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	0	0
Out of the Money | During Surrender Charge Period | GMAB | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	0.41%	0.41%
Out of the Money | During Surrender Charge Period | GMAB | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	12.00%	12.00%
Out of the Money | After Surrender Charge Period | GMWB/GMWBL
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	1.5	1.4
Out of the Money | After Surrender Charge Period | GMWB/GMWBL | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	5.60%	5.60%
Out of the Money | After Surrender Charge Period | GMWB/GMWBL | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	24.00%	24.00%
Out of the Money | After Surrender Charge Period | GMAB
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	0.1	0.1
Out of the Money | After Surrender Charge Period | GMAB | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	12.30%	12.30%
Out of the Money | After Surrender Charge Period | GMAB | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Lapses	31.00%	31.00%
Age 60 and under
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Average Expected Delay	9 years 5 months	9 years 6 months
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	2.8	2.9
Age 60 and under | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Attained Age	0	0
Age 60 and under | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Attained Age	60	60
Age 60 and under | In the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	2.3	2.4
Age 60 and under | Out of the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	0.5	0.5
Age 60-69
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Average Expected Delay	4 years 9 months 24 days	4 years 10 months 24 days
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	7.1	7.2
Age 60-69 | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Attained Age	60	60
Age 60-69 | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Attained Age	69	69
Age 60-69 | In the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	6	6.2
Age 60-69 | Out of the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	1.1	1
Age 70 and over
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Average Expected Delay	3 years 0 months 6 days	3 years 1 month 6 days
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	5.8	5.7
Age 70 and over | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Attained Age	70	70
Age 70 and over | In the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	5.2	5.2
Age 70 and over | Out of the Money
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	$0.60	$0.50

Fair_Value_Measurements_exclud5

Fair Value Measurements (excluding Consolidated Investment Entities) - Other Financial Instruments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	$75,376.30	$73,746.60
Loans	7,040.10	6,793.10
Derivatives	2,127	1,819.60
Derivatives	974.3	849.3
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Limited partnerships/corporations	375.5	363.2
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,484.60	5,069.30
Derivatives	2,127	1,819.60
Other investments	97	110.3
Assets held in separate accounts	107,039.40	106,007.80
Other derivatives	974.3	849.3
Long-term debt	3,516	3,515.70
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Limited partnerships/corporations	375.5	363.2
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,484.60	5,069.30
Derivatives	2,127	1,819.60
Other investments	107.1	120.4
Assets held in separate accounts	107,039.40	106,007.80
Other derivatives	974.3	849.3
Long-term debt	3,968.50	3,875.40
Stabilizer (Investment Only) and MCG Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of Plans	88.00%	87.00%
Funding agreements without fixed maturities and deferred annuities(1) | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	50,411.10	49,850.90
Funding agreements without fixed maturities and deferred annuities(1) | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	56,725.70	55,171.40
Funding agreements with fixed maturities and guaranteed investment contracts | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,564	1,593
Funding agreements with fixed maturities and guaranteed investment contracts | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,543	1,564.80
Supplementary contracts, immediate annuities and other | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,612.10	2,535.30
Supplementary contracts, immediate annuities and other | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,825.30	2,706.20
FIA | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,015.60	1,970
FIA | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,015.60	1,970
GMAB/GMWB/GMWBL | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,860	1,586.70
GMAB/GMWB/GMWBL | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,860	1,586.70
Stabilizer and MCGs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of Plans	100.00%	100.00%
Stabilizer and MCGs | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	148.1	102.9
Stabilizer and MCGs | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	148.1	102.9
Stabilizer with Recordkeeping Agreements
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of Plans	12.00%	13.00%
Mortgage loans on real estate | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	10,194.50	9,794.10
Mortgage loans on real estate | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	10,644.90	10,286.60
Policy loans | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	2,074.10	2,104
Policy loans | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	2,074.10	2,104
Fixed maturities, available-for-sale, including securities pledged | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	76,302.40	74,659.40
Fixed maturities, available-for-sale, including securities pledged | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	76,302.40	74,659.40
Equity securities, available-for-sale | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	283.6	271.8
Equity securities, available-for-sale | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	283.6	271.8
Reinsurance agreements | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives	163.5	139.6
Reinsurance agreements | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives	163.5	139.6
Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,484.60	5,069.30
Assets held in separate accounts	107,039.40	106,007.80
Measured at fair value on a recurring basis | FIA
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,015.60	1,970
Measured at fair value on a recurring basis | GMAB/GMWB/GMWBL
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,860	1,586.70
Measured at fair value on a recurring basis | Stabilizer and MCGs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	148.1	102.9
Level 1 | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,337	4,924.80
Assets held in separate accounts	101,772.70	100,692.40
Level 1 | Measured at fair value on a recurring basis | FIA
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 1 | Measured at fair value on a recurring basis | GMAB/GMWB/GMWBL
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 1 | Measured at fair value on a recurring basis | Stabilizer and MCGs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 2 | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	141.6	138.5
Assets held in separate accounts	5,266.10	5,313.10
Level 2 | Measured at fair value on a recurring basis | FIA
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 2 | Measured at fair value on a recurring basis | GMAB/GMWB/GMWBL
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 2 | Measured at fair value on a recurring basis | Stabilizer and MCGs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
Level 3 | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	6	6
Assets held in separate accounts	0.6	2.3
Level 3 | Measured at fair value on a recurring basis | FIA
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	2,015.60	1,970
Level 3 | Measured at fair value on a recurring basis | GMAB/GMWB/GMWBL
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	1,860	1,586.70
Level 3 | Measured at fair value on a recurring basis | Stabilizer and MCGs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	$148.10	$102.90

Deferred_Policy_Acquisition_Co2

Deferred Policy Acquisition Costs and Value of Business Acquired (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Beginning balance	$3,890.90	$4,316.10
Deferrals of commissions and expenses	86.5	91.6
Amortization:
Amortization	-159.8	-159.6
Interest accrued	57.8	58.3
Net amortization included in the Consolidated Statements of Operations	-102	-101.3
Change in unrealized capital gains/losses on available-for-sale securities	-173.5	-293.3
Ending balance	3,701.90	4,013.10
Movement Analysis Of Value of Business Acquired VOBA [Roll Forward]
Beginning balance	680	1,035.50
Deferrals of commissions and expenses	2.6	3.4
Amortization:
Amortization	-37.5	-47.3
Interest accrued	21.4	22.5
Net amortization included in Condensed Consolidated Statements of Operations	-16.1	-24.8
Change in unrealized capital gains/losses on available-for-sale securities	-124.1	-166.4
Ending balance	542.4	847.7
Movement Analysis of Deferred Policy Acquisition Costs and Value of Business Acquired (VOBA) [Roll Forward]
Beginning balance	4,570.90	5,351.60
Deferrals of commissions and expenses	89.1	95
Amortization:
Amortization	-197.3	-206.9
Interest accrued	79.2	80.8
Net amortization included in Condensed Consolidated Statements of Operations	-118.1	-126.1
Change in unrealized capital gains/losses on available-for-sale securities	-297.6	-459.7
Ending balance	$4,244.30	$4,860.80
Minimum
Amortization:
Deferred Policy Acquisition Costs, Interest accrued percentage	1.50%	0.60%
Value of Business Acquired (VOBA), Interest accrued percentage	4.30%	4.10%
Maximum
Amortization:
Deferred Policy Acquisition Costs, Interest accrued percentage	7.50%	7.40%
Value of Business Acquired (VOBA), Interest accrued percentage	7.50%	7.50%

ShareBased_Incentive_Compensat2

Share-Based Incentive Compensation Plans - Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 09, 2015	Dec. 31, 2014	Mar. 25, 2014	Oct. 29, 2013	7-May-13	28-May-14	Apr. 13, 2015
ING Group
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Ownership by affiliate of parent company		100.00%	19.00%	43.00%	57.00%
2013 and 2014 Omnibus Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options outstanding	0
2013 and 2014 Omnibus Plans | Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$44.22
Number of units granted	900,000		600,000
2013 and 2014 Omnibus Plans | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$44.21
Number of units granted	3,600,000		3,200,000
2013 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance						7,650,000
Shares available for grant	162,690
2014 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance							17,800,000
Shares available for grant	15,750,964
2014 Omnibus Plan | Minimum | Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of grant	0.00%
Award vesting period	1 year
2014 Omnibus Plan | Minimum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
2014 Omnibus Plan | Maximum | Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of grant	150.00%
Award vesting period	3 years
2014 Omnibus Plan | Maximum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
2013 Non-Employee Director Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance							288,000
2013 Non-Employee Director Incentive Plan | Restricted Stock Units (RSUs) | Non-Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage	33.33%
Number of units granted	16,008
2013 Non-Employee Director Incentive Plan | Subsequent Event | Restricted Stock Units (RSUs) | Non-Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted								1,875
Employee Phantom Stock Plan 2014 | Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted	112,711
Employee Phantom Stock Plan 2014 | Phantom Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted	60,521
Equity Compensation Plan Converted to Omnibus Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years

ShareBased_Incentive_Compensat3

Share-Based Incentive Compensation Plans - Compensation Cost (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$34.20	$32.10
Income tax benefit	12	0
Share-based compensation	22.2	32.1
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	12.7	7
RSUs - Deal incentive awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	2.1	5.6
Performance shares (PSU awards)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	17.1	19.2
Employee Phantom Stock Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	2.3	0.3
Voya Share-based Compensation Plans | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	0.7	1.8
Voya Share-based Compensation Plans | Performance shares (PSU awards)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$7.90	$10.60

ShareBased_Incentive_Compensat4

Share-Based Incentive Compensation Plans - Awards Outstanding (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Deal Incentive Awards 2013 Omnibus Plan [Member] | Restricted Stock Units (RSUs)
Number of Awards
Vested	-70,880
2013 and 2014 Omnibus Plans | Restricted Stock Units (RSUs)
Number of Awards
Outstanding, beginning balance	3,200,000
Granted	1,300,000
Vested	-800,000
Forfeited	-100,000
Outstanding, ending balance	3,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning balance	28.8
Granted	44.21
Vested	26.25
Forfeited	29.37
Outstanding, ending balance	34.66
2013 and 2014 Omnibus Plans | RSUs - Deal incentive awards
Number of Awards
Outstanding, beginning balance	0
Granted	100,000
Vested	-100,000
Forfeited	0
Outstanding, ending balance	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning balance	0
Granted	30.03
Vested	30.03
Forfeited	0
Outstanding, ending balance	0
2013 and 2014 Omnibus Plans | Performance shares (PSU awards)
Number of Awards
Outstanding, beginning balance	600,000
Adjustment for PSU performance factor	200,000
Granted	900,000
Vested	-800,000
Forfeited	0
Outstanding, ending balance	900,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, beginning balance	37.01
Adjustment for PSU performance factor	37.01
Granted	44.22
Vested	37.01
Forfeited	42.09
Outstanding, ending balance	44.22

Shareholders_Equity_and_Earnin2

Shareholders' Equity and Earnings per Common Share - Common Stock Rollforward (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Common shares, beginning balance	241,875,485	261,700,000
Common shares issued	0	0
Common stock acquired - share repurchase	-14,300,000	-7,500,000
Share-based compensation programs	1,400,000	500,000
Common shares, ending balance	229,048,002	254,700,000
Common Stock, Issued
Common shares, beginning balance	263,700,000	261,800,000
Common shares issued	0	0
Common stock acquired - share repurchase	0	0
Share-based compensation programs	1,500,000	800,000
Common shares, ending balance	265,200,000	262,600,000
Common Stock, Held in Treasury
Common shares, beginning balance	-21,800,000	-100,000
Common shares issued	0	0
Common stock acquired - share repurchase	14,300,000	7,500,000
Share-based compensation programs	-100,000	-300,000
Common shares, ending balance	-36,200,000	-7,900,000

Shareholders_Equity_and_Earnin3

Shareholders' Equity and Earnings per Common Share - Narrative (Details) (USD $)	0 Months Ended			3 Months Ended		0 Months Ended		12 Months Ended	0 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 09, 2015	7-May-13	Mar. 31, 2015	Mar. 31, 2014	Feb. 05, 2015	Oct. 29, 2013	Dec. 31, 2014	Apr. 30, 2015
Class of Stock [Line Items]
Shares repurchased, value				$630.90	$258.90
Shares paid for tax withholding obligations				64,731
Number of warrants issued and outstanding		26,050,846	26,050,846
Percentage of issued warrants to total shares issued and outstanding			9.99%
Exercise price of warrants			$48.75
Cash dividends declared per share of common stock			$0.01	$0.01	$0.01
Common stock, dividends, per share, cash paid	$0.01
Fair value of warrants issued			94
Common shares issued				0	0
Investments warrants, exercise price		$48.75
ING Group
Class of Stock [Line Items]
Shares repurchased		13,599,274
Shares repurchased, value		600
Common shares issued			44,201,773
Voya Financial, Inc.
Class of Stock [Line Items]
Shares repurchased		13,599,274						19,447,847
Cash dividends declared per share of common stock						$0.01
Common shares issued		32,018,100	30,769,230				37,950,000	82,783,006
Voya Financial, Inc. | Subsequent Event
Class of Stock [Line Items]
Cash dividends declared per share of common stock									$0.01
Direct Share Repurchase Program
Class of Stock [Line Items]
Shares repurchased, authorized amount						750
Shares repurchased		13,599,274		707,563
Remaining authorized amount under repurchase program		129.7
Shares repurchased, value		$600		$30.90

Shareholders_Equity_and_Earnin4

Shareholders' Equity and Earnings per Common Share - Calculation of Basic and Diluted Per Share (Details) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Equity [Abstract]
Net income (loss)	$211.60	$271.60
Less: Net income (loss) attributable to noncontrolling interest	26.1	13.5
Net income (loss) available to common shareholders	$185.50	$258.10
Weighted-average common shares outstanding, Basic:
Basic	238,500,000	261,100,000
Weighted-average common shares outstanding, Dilutive Effects:
Diluted	240,700,000	263,500,000
Net income (loss) available to common shareholders per common share
Basic	$0.78	$0.99
Diluted	$0.77	$0.98
Antidilutive weighted average common shares affecting the earnings per share	0
Restricted Stock Units (RSUs)
Weighted-average common shares outstanding, Dilutive Effects:
Dilutive effects of share-based payments	1,700,000	1,000,000
RSUs - Deal incentive awards
Weighted-average common shares outstanding, Dilutive Effects:
Dilutive effects of share-based payments	0	800,000
Performance shares (PSU awards)
Weighted-average common shares outstanding, Dilutive Effects:
Dilutive effects of share-based payments	500,000	600,000

Insurance_Subsidiaries_Details

Insurance Subsidiaries (Details) (USD $)	3 Months Ended		0 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	5-May-15
Entity Information [Line Items]
Dividends paid	$2.40	$2.60
Subsidiaries | Principal Insurance Subsidiaries
Entity Information [Line Items]
Dividends permitted to be paid	201.5
Subsidiaries | Principal Insurance Subsidiaries | COLORADO
Entity Information [Line Items]
Dividends permitted to be paid	111.5
Subsidiaries | Principal Insurance Subsidiaries | CONNECTICUT
Entity Information [Line Items]
Dividends permitted to be paid	90
Subsidiaries | Principal Insurance Subsidiaries | Subsequent Event
Entity Information [Line Items]
Dividends paid			$819

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income - Components of AOCI (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
In Millions, unless otherwise specified
Components Of Accumulated Other Comprehensive Income Loss [Line Items]
Derivatives	$262.70		$158
DAC/VOBA adjustment on available-for-sale securities	-2,138.20		-1,514.70
Sales inducements adjustment on available-for-sale securities	-86		-74.8
Other	-31.5		-28
Unrealized capital gains (losses), before tax	4,816.90		3,332
Deferred income tax asset (liability)	-1,324.90		-802.7
Unrealized capital gains (losses), after tax	3,492		2,529.30
Pension and other post-employment benefits liability, net of tax	39.2		48.2
AOCI	3,531.20	3,103.70	2,577.50
Fixed maturities
Components Of Accumulated Other Comprehensive Income Loss [Line Items]
Fixed maturities, net of OTTI	6,777.30		4,759.70
Equity securities
Components Of Accumulated Other Comprehensive Income Loss [Line Items]
Equity securities, available-for-sale	$32.60		$31.80

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income - Changes in AOCI, including Reclassification Adjustments (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Available-for-sale securities, Before-Tax Amount:
Net unrealized gains/losses on Other	$0.10	($0.30)
Other-than-temporary impairments	5.7	15.6
Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	1	-8.8
DAC/VOBA	-297.6	-459.7
Sales inducements	-10.8	-16.7
Net realized gains/losses on available-for-sale securities	626.9	1,102.50
Available-for-sale securities, Income Tax:
Net unrealized gains/losses on Other	0	0.1
Change in OTTI, Income Tax	-2	-5.5
Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	-0.4	3.1
DAC/VOBA	104.2	160.9
Sales inducements	3.8	5.8
Net realized gains/losses on available-for-sale securities	-218.8	-387
Available-for-sale securities, After-Tax Amount:
Net unrealized gains/losses on Other	0.1	-0.2
Change in OTTI, After-Tax Amount	3.7	10.1
Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	0.6	-5.7
DAC/VOBA	-193.4	-298.8
Sales inducements	-7	-10.9
Net realized gains/losses on available-for-sale securities	408.1	715.5
Derivatives, Before-Tax Amount:
Net unrealized capital gains/losses arising during the period, Before-Tax Amount	37.1	24.6
Adjustments for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	-3.9	-1.4
Net unrealized gains/losses on derivatives	33.2	23.2
Derivatives, Income Tax:
Net unrealized capital gains/losses arising during the period, Income Tax	-13	-8.6
Adjustments for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	1.4	0.5
Net unrealized gains/losses on derivatives	-11.6	-8.1
Derivatives, After-Tax Amount:
Net unrealized capital gains/losses arising during the period, After-Tax Amount	24.1	16
Adjustments for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	-2.5	-0.9
Net unrealized gains/losses on derivatives	21.6	15.1
Pension and other post-employment benefit liability, Before-Tax Amount:
Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statements of Operations	-3.4	-3.4
Net pension and other post-employment benefit liability	-3.4	-3.4
Other comprehensive income (loss), before tax	656.7	1,122.30
Pension and other post-employment benefit liability, Income Tax:
Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statements of Operations	1.2	1.2
Net pension and other post-employment benefit liability	1.2	1.2
Other comprehensive income (loss)	-229.2	-393.9
Pension and other post-employment benefit liability, After-Tax Amount:
Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statements of Operations	-2.2	-2.2
Net pension and other post-employment benefit liability	-2.2	-2.2
Other comprehensive income (loss), after tax	427.5	728.4
Fixed maturities
Available-for-sale securities, Before-Tax Amount:
Net unrealized gains/losses on securities	926	1,588.40
Available-for-sale securities, Income Tax:
Net unrealized gains/losses on securities	-323.5	-555.6
Available-for-sale securities, After-Tax Amount:
Net unrealized gains/losses on securities	602.5	1,032.80
Equity securities
Available-for-sale securities, Before-Tax Amount:
Net unrealized gains/losses on securities	2.5	-16
Available-for-sale securities, Income Tax:
Net unrealized gains/losses on securities	-0.9	4.2
Available-for-sale securities, After-Tax Amount:
Net unrealized gains/losses on securities	$1.60	($11.80)

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Income tax expense (benefit) at federal statutory rate	35.00%	35.00%
Valuation allowance	-5.60%	-17.50%
Dividend received deduction	-15.40%	-8.50%
Audit settlement	-0.10%	-0.40%
State tax expense (benefit)	6.00%	2.20%
Noncontrolling interest	-3.60%	-1.60%
Nondeductible expenses	0.10%	0.10%
Other	1.10%	0.90%
Income tax expense (benefit)	17.50%	10.20%
Valuation allowance, deferred tax asset, change in amount	($14.50)	($53)
Valuation Allowance of Deferred Tax Assets [Member]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Valuation allowance, deferred tax assets	1,000		1,000
Allocated to continuing operations
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Valuation allowance, deferred tax assets	1,300		1,300
Allocated to other comprehensive income
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Valuation allowance, deferred tax assets	-354.1		-354.1
Valuation Allowance of Deferred Tax Assets [Member]
Valuation Allowance [Line Items]
Valuation Allowances and Reserves, Charged to Cost and Expense	($14.50)	($53)

Financing_Agreements_Narrative

Financing Agreements - Narrative (Details) (USD $)	0 Months Ended	3 Months Ended
	Mar. 17, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Jan. 24, 2014	Feb. 11, 2015	Feb. 14, 2014
Debt Instrument [Line Items]
Period of put option agreement	10 years
Put option agreement, face amount	$500,000,000
Period delinquent payment must be cured to avoid put option	30 days
Minimum equity required to main per debt covenant	3,000,000,000
Outstanding par amount of guaranteed debentures		506,100,000		506,100,000
Revolving lines of credit		8,041,700,000
Outstanding borrowings		4,853,600,000
Payments of financing costs		25,300,000	29,300,000
Outstanding amount on credit facilities		0
Line of Credit Facility, Fair Value of Amount Outstanding		4,900,000,000
Unsecured and Uncommitted
Debt Instrument [Line Items]
Revolving lines of credit		1,700,000
Outstanding borrowings		1,700,000
Outstanding amount on credit facilities		1,700,000
Secured facilities
Debt Instrument [Line Items]
Revolving lines of credit		205,000,000
Outstanding borrowings		195,700,000
Letter of Credit
Debt Instrument [Line Items]
Revolving lines of credit		175,000,000			150,000,000
Unsecured and Committed
Debt Instrument [Line Items]
Revolving lines of credit		7,835,000,000
Outstanding borrowings		4,656,200,000
Outstanding amount on credit facilities		7,800,000,000
Commerzbank AG, maturing 2018
Debt Instrument [Line Items]
Revolving lines of credit						195,000,000
Debt Instrument, Collateral Amount						212,000,000
Revolving Credit Agreement
Debt Instrument [Line Items]
Outstanding amount on credit facilities		887,200,000
Security Life of Denver International Limited | Unsecured and Committed
Debt Instrument [Line Items]
Revolving lines of credit		175,000,000
Outstanding borrowings		157,000,000
Voya Holdings Debentures | Aetna Notes
Debt Instrument [Line Items]
Minimum principal outstanding, 2015		400,000,000
Minimum principal outstanding, 2016		300,000,000
Minimum principal outstanding, 2017		200,000,000
Minimum principal outstanding, 2018		100,000,000
Voya Holdings Debentures | Minimum | Aetna Notes
Debt Instrument [Line Items]
Quarterly fee to guarantor of notes if minimum principal balance is not met		0.50%
Voya Holdings Debentures | Maximum | Aetna Notes
Debt Instrument [Line Items]
Quarterly fee to guarantor of notes if minimum principal balance is not met		1.25%
Voya Holdings Debentures | Aetna Notes
Debt Instrument [Line Items]
Minimum principal outstanding, 2019		0
Senior Notes | Pre-capitalizedTrust
Debt Instrument [Line Items]
Annual interest rate on loan	3.98%
Senior Debt Obligations [Member]
Debt Instrument [Line Items]
Annual interest rate on loan	1.88%
Revolving Credit agreement
Debt Instrument [Line Items]
Revolving lines of credit							3,000,000,000
Voya Financial, Inc. | Secured facilities
Debt Instrument [Line Items]
Outstanding amount on credit facilities		$205,000,000

Financing_Agreements_Longterm_

Financing Agreements - Long-term Debt (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Debt Instrument [Line Items]
Long-term debt	$3,516	$3,515.70
Less: Current portion of long-term debt	0	0
Long-term debt	3,516	3,515.70
Debentures | 7.25% Voya Holdings Inc. Debentures, due 2023
Debt Instrument [Line Items]
Long-term debt	159.2	159
Annual interest rate on loan	7.25%	7.25%
Debentures | 7.63% Voya Holdings Inc. Debentures, due 2026
Debt Instrument [Line Items]
Long-term debt	232.4	232.3
Annual interest rate on loan	7.63%	7.63%
Debentures | 6.97% Percent Voya Holdings Inc. Debentures, due 2036
Debt Instrument [Line Items]
Long-term debt	108.6	108.6
Annual interest rate on loan	6.97%	6.97%
Notes Payable | 8.42% Equitable of Iowa Companies Capital Trust II Notes, due 2027
Debt Instrument [Line Items]
Long-term debt	13.8	13.8
Annual interest rate on loan	8.42%	8.42%
Property Loan | 1.00% Windsor Property Loan
Debt Instrument [Line Items]
Long-term debt	4.9	4.9
Annual interest rate on loan	1.00%	1.00%
Senior Notes | 5.5% Senior Notes, due 2022
Debt Instrument [Line Items]
Long-term debt	849.6	849.6
Annual interest rate on loan	5.50%	5.50%
Senior Notes | 2.9% Senior Notes, due 2018
Debt Instrument [Line Items]
Long-term debt	998.9	998.9
Annual interest rate on loan	2.90%	2.90%
Senior Notes | 5.7% Senior Notes, due 2043
Debt Instrument [Line Items]
Long-term debt	398.6	398.6
Annual interest rate on loan	5.70%	5.70%
Junior Subordinated Notes (2053 Notes) | 5.65% Fixed-to-Floating Rate Junior Subordinated Notes, due 2053
Debt Instrument [Line Items]
Long-term debt	$750	$750
Annual interest rate on loan	5.65%	5.65%

Financing_Agreements_Credit_Fa

Financing Agreements - Credit Facilities (Details) (USD $)	Mar. 31, 2015
In Millions, unless otherwise specified
Line of Credit Facility [Line Items]
Capacity	$8,041.70
Utilization	4,853.60
Unused Commitment	3,178.80
Secured facilities
Line of Credit Facility [Line Items]
Capacity	205
Utilization	195.7
Unused Commitment	0
Secured facilities | Voya Financial Inc. Four
Line of Credit Facility [Line Items]
Capacity	195
Utilization	195
Unused Commitment	0
Secured facilities | Voya Financial, Inc. Three
Line of Credit Facility [Line Items]
Capacity	10
Utilization	0.7
Unused Commitment	0
Unsecured and Uncommitted
Line of Credit Facility [Line Items]
Capacity	1.7
Utilization	1.7
Unused Commitment	0
Unsecured and Uncommitted | Voya Financial, Inc. Two
Line of Credit Facility [Line Items]
Capacity	1.7
Utilization	1.7
Unused Commitment	0
Unsecured and Committed
Line of Credit Facility [Line Items]
Capacity	7,835
Utilization	4,656.20
Unused Commitment	3,178.80
Unsecured and Committed | Voya Financial, Inc.
Line of Credit Facility [Line Items]
Capacity	3,000
Utilization	887.2
Unused Commitment	2,112.80
Unsecured and Committed | Security Life of Denver International Limited
Line of Credit Facility [Line Items]
Capacity	175
Utilization	157
Unused Commitment	18
Unsecured and Committed | Voya Financial, Inc. and Langhorne I, LLC
Line of Credit Facility [Line Items]
Capacity	500
Utilization	0
Unused Commitment	500
Unsecured and Committed | Voya Financial, Inc. and Security Life Of Denver International Limited
Line of Credit Facility [Line Items]
Capacity	750
Utilization	750
Unused Commitment	0
Unsecured and Committed | Security Life of Denver International Limited
Line of Credit Facility [Line Items]
Capacity	1,125
Utilization	1,125
Unused Commitment	0
Unsecured and Committed | Voya Financial, Inc. and Security Life Of Denver International Limited Four
Line of Credit Facility [Line Items]
Capacity	250
Utilization	250
Unused Commitment	0
Unsecured and Committed | Voya Financial, Inc. and Security Life Of Denver International Limited Five
Line of Credit Facility [Line Items]
Capacity	475
Utilization	475
Unused Commitment	0
Unsecured and Committed | Voya Financial, Inc. / Roaring River III LLC
Line of Credit Facility [Line Items]
Capacity	995
Utilization	717
Unused Commitment	278
Unsecured and Committed | Voya Financial, Inc. / Roaring River IV, LLC
Line of Credit Facility [Line Items]
Capacity	565
Utilization	295
Unused Commitment	$270

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	3 Months Ended	12 Months Ended	0 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Dec. 12, 2014
Loss Contingencies [Line Items]
Undiscounted liability of future guaranty fund assessments	$14,300,000	$14,500,000
Future credits to premium taxes	26,500,000	26,500,000
Possible losses in excess of amounts accrued	100,000,000
Federal Home Loan Bank Borrowings | Line of Credit
Loss Contingencies [Line Items]
Amount of borrowing capacity	1,400,000,000	1,400,000,000
Fair value of assets pledged as collateral	1,600,000,000	1,600,000,000
Investment purchase commitment
Loss Contingencies [Line Items]
Off-balance sheet commitment to purchase investments	1,200,000,000	887,400,000
Investment purchase commitment | Consolidated investment entities
Loss Contingencies [Line Items]
Off-balance sheet commitment to purchase investments	289,400,000	297,000,000
Beeson et al.
Loss Contingencies [Line Items]
Number of plaintiffs	34
Other Plantiffs | Beeson et al.
Loss Contingencies [Line Items]
Damages awarded in tentative ruling			36,800,000
Fireman's Fund | Beeson et al.
Loss Contingencies [Line Items]
Damages awarded in tentative ruling			$7,500,000

Commitments_and_Contingencies_2

Commitments and Contingencies (Restricted Assets) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Loss Contingencies [Line Items]
Fixed maturity collateral pledged to FHLB	$1,631.30	$1,614.80
FHLB restricted stock	76.3	76.3
Other fixed maturities-state deposits	246.3	241.7
Securities pledged	1,209.70	1,184.60
Total restricted assets	3,163.60	3,117.40
Securities pledged as collateral
Loss Contingencies [Line Items]
Fair value of loaned securities	548.8	545.9
Fair value of securities delivered as collateral	$660.90	$638.70

Related_Party_Transactions_Inc

Related Party Transactions - Income Statement Disclosures (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Related Party Transaction [Line Items]
Income	$25.20	$11
Expense	12.2	13.6
NN Group
Related Party Transaction [Line Items]
Income	0.4	0.6
Expense	0.1	0.1
ING Group
Related Party Transaction [Line Items]
Income	2.8	5.6
Expense	3	3.5
ING Bank N.V.
Related Party Transaction [Line Items]
Income	18.2	-0.5
Expense	5.7	6.6
Other
Related Party Transaction [Line Items]
Income	3.8	5.3
Expense	$3.40	$3.40

Related_Party_Transactions_Bal

Related Party Transactions - Balance Sheet Disclosures (Details) (USD $)	3 Months Ended		0 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 09, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Assets				$17.10
Liabilities				6.8
Shares repurchased, value	630.9	258.9
NN Group
Related Party Transaction [Line Items]
Assets				0.1
Liabilities				0.2
ING Group
Related Party Transaction [Line Items]
Assets				1.9
Liabilities				1.2
ING Bank N.V.
Related Party Transaction [Line Items]
Assets				12.9
Liabilities				4
Other
Related Party Transaction [Line Items]
Assets				2.2
Liabilities				1.4
ING Group
Related Party Transaction [Line Items]
Shares repurchased			13,599,274
Shares repurchased, value			$600

Related_Party_Transactions_Cre

Related Party Transactions - Credit Facilities (Details) (USD $)	3 Months Ended		0 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 09, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Due to affiliate				$6.80
Expenses incurred	12.2	13.6
Shares repurchased, value	630.9	258.9
ING Bank N.V.
Related Party Transaction [Line Items]
Due to affiliate				4
Expenses incurred	5.7	6.6
ING Bank N.V. | Senior Unsecured Credit Facility
Related Party Transaction [Line Items]
Due to affiliate	0			4
Expenses incurred	5.7	3.7
ING Group
Related Party Transaction [Line Items]
Shares repurchased			13,599,274
Shares repurchased, value			$600

Related_Party_Transactions_Der

Related Party Transactions - Derivatives (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Net realized gains (losses) on derivatives	($269,600,000)	($221,300,000)
Shares repurchased, value	630,900,000	258,900,000
ING Bank N.V. and NN Group
Related Party Transaction [Line Items]
Notional amount of derivatives	0		464,100,000
Derivatives, fair value			11,500,000
Net realized gains (losses) on derivatives	18,200,000	-700,000
NN Group
Related Party Transaction [Line Items]
Maximum potential future net exposure on sale of credit default swaps	30,900,000		33,100,000
Currency forwards | ING Bank N.V. and NN Group
Related Party Transaction [Line Items]
Notional amount of derivatives			178,000,000
Equity options | ING Bank N.V. and NN Group
Related Party Transaction [Line Items]
Notional amount of derivatives			$286,100,000

Consolidated_Investment_Entiti2

Consolidated Investment Entities (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Jan. 23, 2015	Mar. 31, 2015	Dec. 31, 2014
Variable Interest Entity [Line Items]
Investments		93,069.60	90,833.80
Default of Collateral Assets, Percentage		1.00%
Utilization		4,853.60
Capacity		8,041.70
Consolidated investment entities
Variable Interest Entity [Line Items]
Investments		691.2	694.4
Consolidated collateral loan obligations		17	16
Consolidated funds		33	35
Assets of consolidated investment entities		11,294.70	11,323.20
Liabilities of consolidated investment entities		7,993.90	8,195.90
Consolidated investment entities | VOEs
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		3,986	3,856.90
Liabilities of consolidated investment entities		775.2	796.7
Consolidated investment entities | VOEs | Cash and Cash Equivalents
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		101.5	104.5
Consolidated investment entities | VOEs | Limited Partnerships/Corporations
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		3,852.50	3,727.30
Consolidated investment entities | VOEs | Other assets
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		32	25.1
Consolidated investment entities | VOEs | Other Liabilities
Variable Interest Entity [Line Items]
Liabilities of consolidated investment entities		775.2	796.7
Private Equity Funds | VOEs
Variable Interest Entity [Line Items]
Utilization		261.4	261.4
Capacity		550	550
Asset coverage, percentage		250.00%	250.00%
LIBOR | Line of Credit
Variable Interest Entity [Line Items]
Basis spread	175.00%	160.00%	160.00%
VIEs | Consolidated investment entities
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		7,308.70	7,466.30
Liabilities of consolidated investment entities		7,218.70	7,399.20
Utilization		335
Capacity	665
VIEs | Consolidated investment entities | Cash and Cash Equivalents
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		198.2	605.9
VIEs | Consolidated investment entities | Corporate Loans
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		7,040.10	6,793.10
VIEs | Consolidated investment entities | Other assets
Variable Interest Entity [Line Items]
Assets of consolidated investment entities		70.4	67.3
VIEs | Consolidated investment entities | Collateralized Debt Obligations
Variable Interest Entity [Line Items]
Liabilities of consolidated investment entities		6,408.90	6,838.10
VIEs | Consolidated investment entities | Other Liabilities
Variable Interest Entity [Line Items]
Liabilities of consolidated investment entities		809.8	561.1
VIEs | Senior Secured Floating Rate Leveraged Loans | Collateralized Debt Obligations
Variable Interest Entity [Line Items]
Weighted average maturity		9 years 1 month 6 days
VIEs | Senior Secured Corporate Loans | Corporate Loans
Variable Interest Entity [Line Items]
Default of Collateral Assets, Percentage			1.00%
VIEs | LIBOR | Senior Secured Corporate Loans | Corporate Loans
Variable Interest Entity [Line Items]
Variable rate basis spread		LIBOR

Consolidated_Investment_Entiti3

Consolidated Investment Entities (Fair Value Measurement) (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Jan. 23, 2015	Mar. 31, 2015	Dec. 31, 2014
Variable Interest Entity [Line Items]
Default of Collateral Assets, Percentage		1.00%
Revolving lines of credit		8,041.70
Outstanding borrowings		4,853.60
Maximum
Variable Interest Entity [Line Items]
Basis spread		9.50%
LIBOR | Line of Credit
Variable Interest Entity [Line Items]
Basis spread	175.00%	160.00%	160.00%
VOEs | Private Equity Funds
Variable Interest Entity [Line Items]
Revolving lines of credit		550	550
Asset coverage, percentage		250.00%	250.00%
Outstanding borrowings		261.4	261.4
VOEs | Securities Sold under Agreements to Repurchase
Variable Interest Entity [Line Items]
Outstanding borrowings		401.3	417.1
VIEs | Corporate Loans | Senior Secured Corporate Loans
Variable Interest Entity [Line Items]
Unpaid principal exceeds fair value, amount		86.9	75.9
Default of Collateral Assets, Percentage			1.00%
VIEs | Corporate Loans | Senior Secured Corporate Loans | LIBOR
Variable Interest Entity [Line Items]
Variable rate basis spread		LIBOR
VIEs | Corporate Loans | Senior Secured Corporate Loans | EURIBOR
Variable Interest Entity [Line Items]
Variable rate basis spread		EURIBOR
VIEs | Corporate Loans | Senior Secured Corporate Loans | Prime
Variable Interest Entity [Line Items]
Variable rate basis spread		PRIME
VIEs | Collateralized Debt Obligations | Senior Secured Corporate Loans | LIBOR | Minimum
Variable Interest Entity [Line Items]
Basis spread		0.22%
VIEs | Collateralized Debt Obligations | Senior Secured Corporate Loans | LIBOR | Maximum
Variable Interest Entity [Line Items]
Basis spread		7.00%
VIEs | Collateralized Debt Obligations | Senior Secured Floating Rate Leveraged Loans
Variable Interest Entity [Line Items]
Unpaid principal exceeds fair value, amount		255.3	239.6
Weighted average maturity		9 years 1 month 6 days
Consolidated investment entities | VIEs
Variable Interest Entity [Line Items]
Revolving lines of credit	665
Outstanding borrowings		335

Consolidated_Investment_Entiti4

Consolidated Investment Entities (Fair Value Hierarchy) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	11,192.30	$11,230.80
Liabilities	6,408.90	6,838.10
Measured at fair value on a recurring basis | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	299.7	710.4
Liabilities	0	0
Measured at fair value on a recurring basis | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	8,182.40	7,809.50
Liabilities	0	0
Measured at fair value on a recurring basis | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	2,710.20	2,710.90
Liabilities	6,408.90	6,838.10
VOEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	101.5	104.5
VOEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	101.5	104.5
VOEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0	0
VOEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0	0
VOEs | Limited Partnerships | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	3,852.50	3,727.30
VOEs | Limited Partnerships | Measured at fair value on a recurring basis | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0	0
VOEs | Limited Partnerships | Measured at fair value on a recurring basis | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	1,161.30	1,035.60
VOEs | Limited Partnerships | Measured at fair value on a recurring basis | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	2,691.20	2,691.70
VIEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	198.2	605.9
VIEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	198.2	605.9
VIEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0	0
VIEs | Cash and Cash Equivalents | Measured at fair value on a recurring basis | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0	0
VIEs | Corporate Loans | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	7,040.10	6,793.10
VIEs | Corporate Loans | Measured at fair value on a recurring basis | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0	0
VIEs | Corporate Loans | Measured at fair value on a recurring basis | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	7,021.10	6,773.90
VIEs | Corporate Loans | Measured at fair value on a recurring basis | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	19	19.2
VIEs | Collateralized Debt Obligations | Measured at fair value on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	6,408.90	6,838.10
VIEs | Collateralized Debt Obligations | Measured at fair value on a recurring basis | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
VIEs | Collateralized Debt Obligations | Measured at fair value on a recurring basis | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0	0
VIEs | Collateralized Debt Obligations | Measured at fair value on a recurring basis | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	6,408.90	$6,838.10
Senior Secured Floating Rate Leveraged Loans | VIEs | Collateralized Debt Obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Weighted average maturity	9 years 1 month 6 days

Consolidated_Investment_Entiti5

Consolidated Investment Entities (Fair Value Measurements for Level 3 Assets and Liabilities) (Details) (Consolidated investment entities, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Measured at fair value on a recurring basis | Level 3
Variable Interest Entity [Line Items]
Fair Value, Assets, beginning balance	$2,710.90	$2,759.60
Gains (Losses) Included in the Condensed Consolidated Statement of Operations	-0.6	-0.4
Purchases	0	5.1
Sales	-0.1	-0.7
Transfers in to Level 3	0	13.9
Transfers out of Level 3	0
Fair Value, Assets, ending balance	2,710.20	2,777.50
Liabilities, Fair Value, beginning balance	6,838.10	5,161.60
Gains (Losses) Included in the Condensed Consolidated Statement of Operations	-28.2	1.1
Purchases	0	409.4
Sales	-401	-46.6
Transfer in to Level 3	0	0
Transfer out of Level 3	0	0
Liabilities, Fair Value, ending balance	6,408.90	5,525.50
VIEs | Loans Receivable | Measured at fair value on a recurring basis | Level 3
Variable Interest Entity [Line Items]
Fair Value, Assets, beginning balance	19.2	25.5
Gains (Losses) Included in the Condensed Consolidated Statement of Operations	-0.1	0.2
Purchases	0	0
Sales	-0.1	-0.7
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair Value, Assets, ending balance	19	25
VIEs | Collateralized Debt Obligations | Measured at fair value on a recurring basis | Level 3
Variable Interest Entity [Line Items]
Liabilities, Fair Value, beginning balance	6,838.10	5,161.60
Gains (Losses) Included in the Condensed Consolidated Statement of Operations	-28.2	1.1
Purchases	0	409.4
Sales	-401	-46.6
Transfer in to Level 3	0	0
Transfer out of Level 3	0	0
Liabilities, Fair Value, ending balance	6,408.90	5,525.50
VOEs | Limited Partnerships | Measured at fair value on a recurring basis | Level 3
Variable Interest Entity [Line Items]
Fair Value, Assets, beginning balance	2,691.70	2,734.10
Gains (Losses) Included in the Condensed Consolidated Statement of Operations	-0.5	-0.6
Purchases	0	5.1
Sales	0	0
Transfers in to Level 3	0	13.9
Transfers out of Level 3	0	0
Fair Value, Assets, ending balance	2,691.20	2,752.50
Collateralized Debt Obligations | VIEs
Variable Interest Entity [Line Items]
Liabilities, Fair Value, beginning balance			6,838.10
Liabilities, Fair Value, ending balance	6,408.90		6,838.10
Loans Receivable | VIEs
Variable Interest Entity [Line Items]
Fair Value, Assets, beginning balance			19.2
Fair Value, Assets, ending balance	$19		$19.20

Consolidated_Investment_Entiti6

Consolidated Investment Entities (Maximum Exposure) (Details) (VIE, Not Primary Beneficiary, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Carrying amount	$0	$0
Maximum exposure to loss	0	0
Assets of nonconsolidated investment entities	892.3	932.8
Liabilities of nonconsolidated investment entities	$928.80	$983.70

Segments_Narrative_Details

Segments (Narrative) (Details)	3 Months Ended	0 Months Ended
	Mar. 31, 2015	Apr. 20, 2015
	segments	segments
Segment Reporting Information [Line Items]
Number of reportable segments	3
Number of operating segments	5
Retirement Solutions
Segment Reporting Information [Line Items]
Number of operating segments	2
Insurance Solutions
Segment Reporting Information [Line Items]
Number of operating segments	2
Subsequent Event
Segment Reporting Information [Line Items]
Number of reportable segments		2

Segments_Operating_Earnings_Be

Segments (Operating Earnings Before Income Taxes) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	$289.60	$231.10
Closed Block Variable Annuity	-34.4	20.2
Net investment gains (losses) and related charges and adjustments	50.4	57.6
Net guaranteed benefit hedging gains (losses) and related charges and adjustments	-47.2	6.4
Loss related to businesses exited through reinsurance or divestment	-15.4	-10.5
Income (loss) attributable to noncontrolling interest	26.1	13.5
Other adjustments to operating earnings	-12.8	-16
Income (loss) before income taxes	256.3	302.3
Retirement Solutions | Retirement
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	124.5	114.9
Retirement Solutions | Annuities
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	68.6	54.8
Investment Management
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	46.9	49.8
Insurance Solutions | Individual Life
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	43.4	31.1
Insurance Solutions | Employee Benefits
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	40.6	16.9
Total Ongoing Businesses
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	324	267.5
Corporate
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	-48.2	-37.3
Closed Blocks
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	13.8	0.9
Closed Blocks | Closed Block Institutional Spread Products
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	5.1	5.4
Closed Blocks | Closed Block Other
Segment Reporting Information [Line Items]
Total operating earnings before income taxes	$8.70	($4.50)

Segments_Operating_Revenues_De

Segments (Operating Revenues) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Total operating revenues	$2,161.20	$2,195.40
Closed Block Variable Annuity	259.4	284.6
Net realized investment gains (losses) and related charges and adjustments	53.1	49.6
Gain (loss) on change in fair value of derivatives related to guaranteed benefits	-53.6	-23.9
Revenues related to businesses exited through reinsurance or divestment	40.6	19
Revenues attributable to noncontrolling interest	89.8	60.8
Other adjustments to operating revenues	75.5	85.4
Total revenues	2,626	2,670.90
Intersegment
Segment Reporting Information [Line Items]
Total operating revenues	38.6	39.3
Retirement Solutions | Retirement
Segment Reporting Information [Line Items]
Total operating revenues	600.5	598.5
Retirement Solutions | Annuities
Segment Reporting Information [Line Items]
Total operating revenues	315.6	354.4
Investment Management
Segment Reporting Information [Line Items]
Total operating revenues	163.1	160.5
Insurance Solutions | Individual Life
Segment Reporting Information [Line Items]
Total operating revenues	668.8	692.2
Insurance Solutions | Employee Benefits
Segment Reporting Information [Line Items]
Total operating revenues	370.9	338.9
Total Ongoing Businesses
Segment Reporting Information [Line Items]
Total operating revenues	2,118.90	2,144.50
Corporate
Segment Reporting Information [Line Items]
Total operating revenues	20.4	25.3
Closed Blocks
Segment Reporting Information [Line Items]
Total operating revenues	21.9	25.6
Closed Blocks | Closed Block Institutional Spread Products
Segment Reporting Information [Line Items]
Total operating revenues	14.9	17.6
Closed Blocks | Closed Block Other
Segment Reporting Information [Line Items]
Total operating revenues	$7	$8

Segments_Total_Assets_Details

Segments (Total Assets) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]
Assets	$229,048.20	$226,951.40
Parent | Retirement Solutions | Retirement
Segment Reporting Information [Line Items]
Assets	98,429.10	96,433.90
Parent | Retirement Solutions | Annuities
Segment Reporting Information [Line Items]
Assets	25,956.30	25,901.50
Parent | Investment Management
Segment Reporting Information [Line Items]
Assets	424.9	492.6
Parent | Insurance Solutions | Individual Life
Segment Reporting Information [Line Items]
Assets	26,977.30	26,877.10
Parent | Insurance Solutions | Employee Benefits
Segment Reporting Information [Line Items]
Assets	2,623.10	2,602.40
Parent | Total Ongoing Businesses
Segment Reporting Information [Line Items]
Assets	154,410.70	152,307.50
Parent | Corporate
Segment Reporting Information [Line Items]
Assets	5,826	5,910
Parent | Closed Blocks
Segment Reporting Information [Line Items]
Assets	58,224.60	58,105.10
Parent | Closed Blocks | Closed Block Variable Annuity
Segment Reporting Information [Line Items]
Assets	48,871.50	48,706.90
Parent | Closed Blocks | Closed Block Institutional Spread Products
Segment Reporting Information [Line Items]
Assets	1,904.10	1,901.90
Parent | Closed Blocks | Closed Block Other
Segment Reporting Information [Line Items]
Assets	7,449	7,496.30
Parent | Total Segment
Segment Reporting Information [Line Items]
Assets	218,461.30	216,322.60
Noncontrolling Interest
Segment Reporting Information [Line Items]
Assets	$10,586.90	$10,628.80

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information - Narrative (Details)	Mar. 31, 2015	Dec. 31, 2014
5.5% Senior Notes, due 2022 | Senior Notes
Debt Instrument [Line Items]
Annual interest rate on loan	5.50%	5.50%
2.9% Senior Notes, due 2018 | Senior Notes
Debt Instrument [Line Items]
Annual interest rate on loan	2.90%	2.90%
5.7% Senior Notes, due 2043 | Senior Notes
Debt Instrument [Line Items]
Annual interest rate on loan	5.70%	5.70%
5.65% Fixed-to-Floating Rate Junior Subordinated Notes, due 2053 | Junior Subordinated Notes (2053 Notes)
Debt Instrument [Line Items]
Annual interest rate on loan	5.65%	5.65%
Voya Holdings Inc.
Debt Instrument [Line Items]
Ownership percentage by the company	100.00%

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information - Balance Sheets (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Investments:
Fixed maturities, available-for-sale, at fair value	$71,417.40	$69,910.30
Fixed maturities, at fair value using the fair value option	3,675.30	3,564.50
Equity securities, available-for-sale	283.6	271.8
Short-term investments	1,615.50	1,711.40
Mortgage loans on real estate, net of valuation allowance	10,194.50	9,794.10
Policy loans	2,074.10	2,104
Limited partnerships/corporations	375.5	363.2
Derivatives	2,127	1,819.60
Investments in subsidiaries	0	0
Other investments	97	110.3
Securities pledged	1,209.70	1,184.60
Total investments	93,069.60	90,833.80
Cash and cash equivalents	1,875.40	2,530.90	2,499.80	2,840.80
Short-term investments under securities loan agreements, including collateral delivered	993.7	827
Accrued investment income	927.2	891.7
Reinsurance recoverable	7,048.80	7,116.90
Deferred policy acquisition costs and Value of business acquired	4,244.30	4,570.90	4,860.80	5,351.60
Sales inducements to contract holders	239.9	253.6
Deferred income taxes	1,035.40	1,320.60
Goodwill and other intangible assets	276.3	284.4
Loans to subsidiaries and affiliates	0	0
Due from subsidiaries and affiliates	0	0
Other assets	1,003.50	990.6
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	3,852.50	3,727.30
Cash and cash equivalents	299.7	710.4
Corporate loans, at fair value using the fair value option	7,040.10	6,793.10
Other assets	102.4	92.4
Assets held in separate accounts	107,039.40	106,007.80
Total assets	229,048.20	226,951.40
Liabilities and Shareholder's Equity:
Future policy benefits	16,037.60	15,691.20
Contract owner account balances	69,692.60	69,319.50
Payables under securities loan agreements, including collateral held	1,971.90	1,445
Short-term debt with affiliates	0	0
Long-term debt	3,516	3,515.70
Funds held under reinsurance agreements	1,162.20	1,159.60
Derivatives	974.3	849.3
Pension and other postretirement provisions	808.1	826.2
Current income taxes	4.1	84.8
Due to subsidiaries and affiliates	0	0
Other liabilities	1,181.40	1,333.20
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	6,408.90	6,838.10
Other liabilities	1,585	1,357.80
Liabilities related to separate accounts	107,039.40	106,007.80
Total liabilities	210,381.50	208,428.20
Shareholder's equity:
Total Voya Financial, Inc. shareholders' equity	16,102	16,107.90
Noncontrolling interest	2,564.70	2,415.30
Total shareholders' equity	18,666.70	18,523.20	16,368	15,514
Total liabilities and shareholder's equity	229,048.20	226,951.40
Parent Issuer
Investments:
Fixed maturities, available-for-sale, at fair value	0	0
Fixed maturities, at fair value using the fair value option	0	0
Equity securities, available-for-sale	91.2	83.4
Short-term investments	212	0
Mortgage loans on real estate, net of valuation allowance	0	0
Policy loans	0	0
Limited partnerships/corporations	0	0
Derivatives	71.4	69
Investments in subsidiaries	18,507.40	17,879.70
Other investments	0	0
Securities pledged	0	0
Total investments	18,882	18,032.10
Cash and cash equivalents	249.6	682.1	441.5	640.2
Short-term investments under securities loan agreements, including collateral delivered	30.7	30.7
Accrued investment income	0	0
Reinsurance recoverable	0	0
Deferred policy acquisition costs and Value of business acquired	0	0
Sales inducements to contract holders	0	0
Deferred income taxes	409.2	398.2
Goodwill and other intangible assets	0	0
Loans to subsidiaries and affiliates	183.4	169
Due from subsidiaries and affiliates	16.5	13
Other assets	54.8	49.3
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	0	0
Cash and cash equivalents	0	0
Corporate loans, at fair value using the fair value option	0	0
Other assets	0	0
Assets held in separate accounts	0	0
Total assets	19,826.20	19,374.40
Liabilities and Shareholder's Equity:
Future policy benefits	0	0
Contract owner account balances	0	0
Payables under securities loan agreements, including collateral held	0	0
Short-term debt with affiliates	534.3	0
Long-term debt	2,997.20	2,997.10
Funds held under reinsurance agreements	0	0
Derivatives	108.2	103.5
Pension and other postretirement provisions	0	0
Current income taxes	3.3	84.8
Due to subsidiaries and affiliates	5.8	4.8
Other liabilities	75.4	76.3
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	0	0
Other liabilities	0	0
Liabilities related to separate accounts	0	0
Total liabilities	3,724.20	3,266.50
Shareholder's equity:
Total Voya Financial, Inc. shareholders' equity	16,102	16,107.90
Noncontrolling interest	0	0
Total shareholders' equity	16,102	16,107.90
Total liabilities and shareholder's equity	19,826.20	19,374.40
Subsidiary Guarantor
Investments:
Fixed maturities, available-for-sale, at fair value	0	0
Fixed maturities, at fair value using the fair value option	0	0
Equity securities, available-for-sale	0	0
Short-term investments	0	0
Mortgage loans on real estate, net of valuation allowance	0	0
Policy loans	0	0
Limited partnerships/corporations	0	0
Derivatives	0	0
Investments in subsidiaries	13,710	13,312
Other investments	1.3	14.4
Securities pledged	0	0
Total investments	13,711.30	13,326.40
Cash and cash equivalents	1.7	1.6	1.5	1.1
Short-term investments under securities loan agreements, including collateral delivered	0	0
Accrued investment income	0	0
Reinsurance recoverable	0	0
Deferred policy acquisition costs and Value of business acquired	0	0
Sales inducements to contract holders	0	0
Deferred income taxes	48.7	49.2
Goodwill and other intangible assets	0	0
Loans to subsidiaries and affiliates	0.1	0
Due from subsidiaries and affiliates	0.5	0.1
Other assets	0	0
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	0	0
Cash and cash equivalents	0	0
Corporate loans, at fair value using the fair value option	0	0
Other assets	0	0
Assets held in separate accounts	0	0
Total assets	13,762.30	13,377.30
Liabilities and Shareholder's Equity:
Future policy benefits	0	0
Contract owner account balances	0	0
Payables under securities loan agreements, including collateral held	0	0
Short-term debt with affiliates	148.4	149.7
Long-term debt	515.4	515.3
Funds held under reinsurance agreements	0	0
Derivatives	0	0
Pension and other postretirement provisions	0	0
Current income taxes	-1.1	-5.7
Due to subsidiaries and affiliates	1.2	1.2
Other liabilities	6	14.9
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	0	0
Other liabilities	0	0
Liabilities related to separate accounts	0	0
Total liabilities	669.9	675.4
Shareholder's equity:
Total Voya Financial, Inc. shareholders' equity	13,092.40	12,701.90
Noncontrolling interest	0	0
Total shareholders' equity	13,092.40	12,701.90
Total liabilities and shareholder's equity	13,762.30	13,377.30
Non-Guarantor Subsidiaries
Investments:
Fixed maturities, available-for-sale, at fair value	71,432.70	69,925.60
Fixed maturities, at fair value using the fair value option	3,675.30	3,564.50
Equity securities, available-for-sale	192.4	188.4
Short-term investments	1,403.50	1,711.40
Mortgage loans on real estate, net of valuation allowance	10,194.50	9,794.10
Policy loans	2,074.10	2,104
Limited partnerships/corporations	375.5	363.2
Derivatives	2,235.20	1,923.10
Investments in subsidiaries	0	0
Other investments	95.7	95.9
Securities pledged	1,209.70	1,184.60
Total investments	92,888.60	90,854.80
Cash and cash equivalents	1,624.10	1,847.20	2,056.80	2,199.50
Short-term investments under securities loan agreements, including collateral delivered	983.1	816.4
Accrued investment income	927.2	891.7
Reinsurance recoverable	7,048.80	7,116.90
Deferred policy acquisition costs and Value of business acquired	4,244.30	4,570.90
Sales inducements to contract holders	239.9	253.6
Deferred income taxes	577.5	873.2
Goodwill and other intangible assets	276.3	284.4
Loans to subsidiaries and affiliates	535	0.3
Due from subsidiaries and affiliates	7	6
Other assets	949.6	942.2
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	3,852.50	3,727.30
Cash and cash equivalents	299.7	710.4
Corporate loans, at fair value using the fair value option	7,040.10	6,793.10
Other assets	102.4	92.4
Assets held in separate accounts	107,039.40	106,007.80
Total assets	228,635.50	225,788.60
Liabilities and Shareholder's Equity:
Future policy benefits	16,037.60	15,691.20
Contract owner account balances	69,692.60	69,319.50
Payables under securities loan agreements, including collateral held	1,971.90	1,445
Short-term debt with affiliates	34.9	19.3
Long-term debt	18.7	18.6
Funds held under reinsurance agreements	1,162.20	1,159.60
Derivatives	1,045.70	918.3
Pension and other postretirement provisions	808.1	826.2
Current income taxes	1.9	5.7
Due to subsidiaries and affiliates	2	-1.9
Other liabilities	1,136.90	1,278.30
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	6,408.90	6,838.10
Other liabilities	1,585	1,357.80
Liabilities related to separate accounts	107,039.40	106,007.80
Total liabilities	206,945.80	204,883.50
Shareholder's equity:
Total Voya Financial, Inc. shareholders' equity	19,125	18,489.80
Noncontrolling interest	2,564.70	2,415.30
Total shareholders' equity	21,689.70	20,905.10
Total liabilities and shareholder's equity	228,635.50	225,788.60
Consolidating Adjustments
Investments:
Fixed maturities, available-for-sale, at fair value	-15.3	-15.3
Fixed maturities, at fair value using the fair value option	0	0
Equity securities, available-for-sale	0	0
Short-term investments	0	0
Mortgage loans on real estate, net of valuation allowance	0	0
Policy loans	0	0
Limited partnerships/corporations	0	0
Derivatives	-179.6	-172.5
Investments in subsidiaries	-32,217.40	-31,191.70
Other investments	0	0
Securities pledged	0	0
Total investments	-32,412.30	-31,379.50
Cash and cash equivalents	0	0	0	0
Short-term investments under securities loan agreements, including collateral delivered	-20.1	-20.1
Accrued investment income	0	0
Reinsurance recoverable	0	0
Deferred policy acquisition costs and Value of business acquired	0	0
Sales inducements to contract holders	0	0
Deferred income taxes	0	0
Goodwill and other intangible assets	0	0
Loans to subsidiaries and affiliates	-718.5	-169.3
Due from subsidiaries and affiliates	-24	-19.1
Other assets	-0.9	-0.9
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	0	0
Cash and cash equivalents	0	0
Corporate loans, at fair value using the fair value option	0	0
Other assets	0	0
Assets held in separate accounts	0	0
Total assets	-33,175.80	-31,588.90
Liabilities and Shareholder's Equity:
Future policy benefits	0	0
Contract owner account balances	0	0
Payables under securities loan agreements, including collateral held	0	0
Short-term debt with affiliates	-717.6	-169
Long-term debt	-15.3	-15.3
Funds held under reinsurance agreements	0	0
Derivatives	-179.6	-172.5
Pension and other postretirement provisions	0	0
Current income taxes	0	0
Due to subsidiaries and affiliates	-9	-4.1
Other liabilities	-36.9	-36.3
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	0	0
Other liabilities	0	0
Liabilities related to separate accounts	0	0
Total liabilities	-958.4	-397.2
Shareholder's equity:
Total Voya Financial, Inc. shareholders' equity	-32,217.40	-31,191.70
Noncontrolling interest	0	0
Total shareholders' equity	-32,217.40	-31,191.70
Total liabilities and shareholder's equity	($33,175.80)	($31,588.90)

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information - Statements of Operations (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenues:
Net investment income	$1,174.60	$1,145.60
Fee income	899.8	931.8
Premiums	608.8	600.9
Net realized capital gains (losses):
Total other-than-temporary impairments	-2.6	-3.3
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	2.3	0
Net other-than-temporary impairments recognized in earnings	-4.9	-3.3
Other net realized capital gains (losses)	-259.6	-187.3
Total net realized capital gains (losses)	-264.5	-190.6
Other revenue	102.7	105.5
Income (loss) related to consolidated investment entities:
Net investment income	96.9	81.5
Changes in fair value related to collateralized loan obligations	7.7	-3.8
Total revenues	2,626	2,670.90
Benefits and expenses:
Policyholder benefits	887	865
Interest credited to contract owner account balances	484.7	493.1
Operating expenses	768.8	789.5
Net amortization of Deferred policy acquisition costs and Value of business acquired	118.1	126.1
Interest expense	47.4	47.6
Operating expenses related to consolidated investment entities:
Interest expense	62.5	46.2
Other expense	1.2	1.1
Total benefits and expenses	2,369.70	2,368.60
Income (loss) before income taxes	256.3	302.3
Income tax expense (benefit)	44.7	30.7
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	211.6	271.6
Equity in earnings (losses) of subsidiaries, net of tax	0	0
Net income (loss) including noncontrolling interest	211.6	271.6
Less: Net income (loss) attributable to noncontrolling interest	26.1	13.5
Net income (loss) available to Voya Financial, Inc.'s common shareholders	185.5	258.1
Parent Issuer
Revenues:
Net investment income	3.4	2
Fee income	0	0
Premiums	0	0
Net realized capital gains (losses):
Total other-than-temporary impairments	0	0
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	0	0
Net other-than-temporary impairments recognized in earnings	0	0
Other net realized capital gains (losses)	-1	0.6
Total net realized capital gains (losses)	-1	0.6
Other revenue	0.9	0.9
Income (loss) related to consolidated investment entities:
Net investment income	0	0
Changes in fair value related to collateralized loan obligations	0	0
Total revenues	3.3	3.5
Benefits and expenses:
Policyholder benefits	0	0
Interest credited to contract owner account balances	0	0
Operating expenses	0.7	1.5
Net amortization of Deferred policy acquisition costs and Value of business acquired	0	0
Interest expense	37.7	37.2
Operating expenses related to consolidated investment entities:
Interest expense	0	0
Other expense	0	0
Total benefits and expenses	38.4	38.7
Income (loss) before income taxes	-35.1	-35.2
Income tax expense (benefit)	0	0
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	-35.1	-35.2
Equity in earnings (losses) of subsidiaries, net of tax	220.6	293.3
Net income (loss) including noncontrolling interest	185.5	258.1
Less: Net income (loss) attributable to noncontrolling interest	0	0
Net income (loss) available to Voya Financial, Inc.'s common shareholders	185.5	258.1
Subsidiary Guarantor
Revenues:
Net investment income	0.1	0
Fee income	0	0
Premiums	0	0
Net realized capital gains (losses):
Total other-than-temporary impairments	0	0
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	0	0
Net other-than-temporary impairments recognized in earnings	0	0
Other net realized capital gains (losses)	0.2	0
Total net realized capital gains (losses)	0.2	0
Other revenue	0	0
Income (loss) related to consolidated investment entities:
Net investment income	0	0
Changes in fair value related to collateralized loan obligations	0	0
Total revenues	0.3	0
Benefits and expenses:
Policyholder benefits	0	0
Interest credited to contract owner account balances	0	0
Operating expenses	0	0
Net amortization of Deferred policy acquisition costs and Value of business acquired	0	0
Interest expense	10.6	10.5
Operating expenses related to consolidated investment entities:
Interest expense	0	0
Other expense	0	0
Total benefits and expenses	10.6	10.5
Income (loss) before income taxes	-10.3	-10.5
Income tax expense (benefit)	-5.8	3.3
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	-4.5	-13.8
Equity in earnings (losses) of subsidiaries, net of tax	133.2	14.3
Net income (loss) including noncontrolling interest	128.7	0.5
Less: Net income (loss) attributable to noncontrolling interest	0	0
Net income (loss) available to Voya Financial, Inc.'s common shareholders	128.7	0.5
Non-Guarantor Subsidiaries
Revenues:
Net investment income	1,173	1,144.90
Fee income	899.8	931.8
Premiums	608.8	600.9
Net realized capital gains (losses):
Total other-than-temporary impairments	-2.6	-3.3
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	2.3	0
Net other-than-temporary impairments recognized in earnings	-4.9	-3.3
Other net realized capital gains (losses)	-258.8	-187.9
Total net realized capital gains (losses)	-263.7	-191.2
Other revenue	102.7	105.5
Income (loss) related to consolidated investment entities:
Net investment income	96.9	81.5
Changes in fair value related to collateralized loan obligations	7.7	-3.8
Total revenues	2,625.20	2,669.60
Benefits and expenses:
Policyholder benefits	887	865
Interest credited to contract owner account balances	484.7	493.1
Operating expenses	769	788.9
Net amortization of Deferred policy acquisition costs and Value of business acquired	118.1	126.1
Interest expense	1	1.2
Operating expenses related to consolidated investment entities:
Interest expense	62.5	46.2
Other expense	1.2	1.1
Total benefits and expenses	2,323.50	2,321.60
Income (loss) before income taxes	301.7	348
Income tax expense (benefit)	56.4	22.1
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	245.3	325.9
Equity in earnings (losses) of subsidiaries, net of tax	0	0
Net income (loss) including noncontrolling interest	245.3	325.9
Less: Net income (loss) attributable to noncontrolling interest	26.1	13.5
Net income (loss) available to Voya Financial, Inc.'s common shareholders	219.2	312.4
Consolidating Adjustments
Revenues:
Net investment income	-1.9	-1.3
Fee income	0	0
Premiums	0	0
Net realized capital gains (losses):
Total other-than-temporary impairments	0	0
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	0	0
Net other-than-temporary impairments recognized in earnings	0	0
Other net realized capital gains (losses)	0	0
Total net realized capital gains (losses)	0	0
Other revenue	-0.9	-0.9
Income (loss) related to consolidated investment entities:
Net investment income	0	0
Changes in fair value related to collateralized loan obligations	0	0
Total revenues	-2.8	-2.2
Benefits and expenses:
Policyholder benefits	0	0
Interest credited to contract owner account balances	0	0
Operating expenses	-0.9	-0.9
Net amortization of Deferred policy acquisition costs and Value of business acquired	0	0
Interest expense	-1.9	-1.3
Operating expenses related to consolidated investment entities:
Interest expense	0	0
Other expense	0	0
Total benefits and expenses	-2.8	-2.2
Income (loss) before income taxes	0	0
Income tax expense (benefit)	-5.9	5.3
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	5.9	-5.3
Equity in earnings (losses) of subsidiaries, net of tax	-353.8	-307.6
Net income (loss) including noncontrolling interest	-347.9	-312.9
Less: Net income (loss) attributable to noncontrolling interest	0	0
Net income (loss) available to Voya Financial, Inc.'s common shareholders	($347.90)	($312.90)

Condensed_Consolidating_Financ5

Condensed Consolidating Financial Information - Statements of Comprehensive Income (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$211.60	$271.60
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	654.4	1,110.10
Other-than-temporary impairments	5.7	15.6
Pension and other post-employment benefit liability	-3.4	-3.4
Other comprehensive income (loss), before tax	656.7	1,122.30
Income tax expense (benefit) related to items of other comprehensive income (loss)	229.2	393.9
Other comprehensive income (loss), after tax	427.5	728.4
Comprehensive income (loss)	639.1	1,000
Less: Comprehensive income (loss) attributable to noncontrolling interest	26.1	13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	613	986.5
Parent Issuer
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	185.5	258.1
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	654.4	1,110.10
Other-than-temporary impairments	5.7	15.6
Pension and other post-employment benefit liability	-3.4	-3.4
Other comprehensive income (loss), before tax	656.7	1,122.30
Income tax expense (benefit) related to items of other comprehensive income (loss)	229.2	393.9
Other comprehensive income (loss), after tax	427.5	728.4
Comprehensive income (loss)	613	986.5
Less: Comprehensive income (loss) attributable to noncontrolling interest	0	0
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	613	986.5
Subsidiary Guarantor
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	128.7	0.5
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	435	767.7
Other-than-temporary impairments	4.7	13.2
Pension and other post-employment benefit liability	-0.8	-0.8
Other comprehensive income (loss), before tax	438.9	780.1
Income tax expense (benefit) related to items of other comprehensive income (loss)	153	274.1
Other comprehensive income (loss), after tax	285.9	506
Comprehensive income (loss)	414.6	506.5
Less: Comprehensive income (loss) attributable to noncontrolling interest	0	0
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	414.6	506.5
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	245.3	325.9
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	654.4	1,113.20
Other-than-temporary impairments	5.7	15.6
Pension and other post-employment benefit liability	-3.4	-3.4
Other comprehensive income (loss), before tax	656.7	1,125.40
Income tax expense (benefit) related to items of other comprehensive income (loss)	229.2	393.5
Other comprehensive income (loss), after tax	427.5	731.9
Comprehensive income (loss)	672.8	1,057.80
Less: Comprehensive income (loss) attributable to noncontrolling interest	26.1	13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	646.7	1,044.30
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	-347.9	-312.9
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	-1,089.40	-1,880.90
Other-than-temporary impairments	-10.4	-28.8
Pension and other post-employment benefit liability	4.2	4.2
Other comprehensive income (loss), before tax	-1,095.60	-1,905.50
Income tax expense (benefit) related to items of other comprehensive income (loss)	-382.2	-667.6
Other comprehensive income (loss), after tax	-713.4	-1,237.90
Comprehensive income (loss)	-1,061.30	-1,550.80
Less: Comprehensive income (loss) attributable to noncontrolling interest	0	0
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	($1,061.30)	($1,550.80)

Condensed_Consolidating_Financ6

Condensed Consolidating Financial Information - Statements of Cash Flows (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$1,053.70	$786.60
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	2,246.30	2,629.70
Equity securities, available-for-sale	7.9	47.7
Mortgage loans on real estate	312.8	307.4
Limited partnerships/corporations	33.3	60.9
Acquisition of:
Fixed maturities	-2,937.40	-3,057.20
Equity securities, available-for-sale	-14.3	-7.4
Mortgage loans on real estate	-713.3	-252.9
Limited partnerships/corporations	-33.7	-18.4
Short-term investments, net	95.9	1.9
Policy loans, net	29.9	27.3
Derivatives, net	-85.3	-178.6
Other investments, net	13.5	2
Sales from consolidated investment entities	767.6	571.8
Purchases within consolidated investment entities	-1,320.70	-1,258.80
Maturity of intercompany loans with maturities more than three months	0	0
Net maturity of short-term intercompany loans	0	0
Return of capital contributions from subsidiaries	0	0
Capital contributions to subsidiaries		0
Collateral received (delivered), net	360.2	89.4
Purchases of fixed assets, net	-8.6	-8.7
Payments for (Proceeds from) Other Investing Activities		0
Net cash used in investing activities	-1,245.90	-1,043.90
Cash Flows from Financing Activities:
Deposits received for investment contracts	1,864.30	2,500
Maturities and withdrawals from investment contracts	-1,760.80	-2,809.70
Debt issuance costs	-6.2	-16.7
Intercompany loans with maturities of more than three months	0	0
Net (repayments of) proceeds from short-term intercompany loans	0	0
Return of capital contributions to parent	0	0
Contributions of capital from parent		0
Borrowings of consolidated investment entities	350	28.4
Repayments of borrowings of consolidated investment entities	-15.9	0
Contributions from (distributions to) participants in consolidated investment entities, net	-268.9	466.9
Common stock acquired - Share repurchase	-622	-250
Share-based compensation	-2.7	0
Excess tax benefits on share-based compensation	1.3	0
Dividends paid	-2.4	-2.6
Net cash used in financing activities	-463.3	-83.7
Net decrease in cash and cash equivalents	-655.5	-341
Cash and cash equivalents, beginning of year	2,530.90	2,840.80
Cash and cash equivalents, end of year	1,875.40	2,499.80
Parent Issuer
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	-130.4	-12.1
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	0	0
Equity securities, available-for-sale	7.1	2.4
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Acquisition of:
Fixed maturities	0	0
Equity securities, available-for-sale	-13.3	-6.5
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Short-term investments, net	-212	-21
Policy loans, net	0	0
Derivatives, net	-2.5	11.5
Other investments, net	0	0
Sales from consolidated investment entities	0	0
Purchases within consolidated investment entities	0	0
Maturity of intercompany loans with maturities more than three months	0.3	0.6
Net maturity of short-term intercompany loans	-14.7	-159.3
Return of capital contributions from subsidiaries	32	75
Capital contributions to subsidiaries		0
Collateral received (delivered), net	0	0
Purchases of fixed assets, net	0	0
Payments for (Proceeds from) Other Investing Activities		0
Net cash used in investing activities	-203.1	-97.3
Cash Flows from Financing Activities:
Deposits received for investment contracts	0	0
Maturities and withdrawals from investment contracts	0	0
Debt issuance costs	-6.2	-16.7
Intercompany loans with maturities of more than three months	0	0
Net (repayments of) proceeds from short-term intercompany loans	534.3	180
Return of capital contributions to parent	0	0
Contributions of capital from parent		0
Borrowings of consolidated investment entities	0	0
Repayments of borrowings of consolidated investment entities	0
Contributions from (distributions to) participants in consolidated investment entities, net	0	0
Common stock acquired - Share repurchase	-622	-250
Share-based compensation	-2.7
Excess tax benefits on share-based compensation	0
Dividends paid	-2.4	-2.6
Net cash used in financing activities	-99	-89.3
Net decrease in cash and cash equivalents	-432.5	-198.7
Cash and cash equivalents, beginning of year	682.1	640.2
Cash and cash equivalents, end of year	249.6	441.5
Subsidiary Guarantor
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	20.1	8
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	0	0
Equity securities, available-for-sale	0	13.1
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Acquisition of:
Fixed maturities	0	0
Equity securities, available-for-sale	0	0
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Short-term investments, net	0	0
Policy loans, net	0	0
Derivatives, net	0	0
Other investments, net	13.3	0
Sales from consolidated investment entities	0	0
Purchases within consolidated investment entities	0	0
Maturity of intercompany loans with maturities more than three months	0	0
Net maturity of short-term intercompany loans	0	0
Return of capital contributions from subsidiaries	0	0
Capital contributions to subsidiaries		-156
Collateral received (delivered), net	0	0
Purchases of fixed assets, net	0	0
Payments for (Proceeds from) Other Investing Activities		0.2
Net cash used in investing activities	13.3	-142.7
Cash Flows from Financing Activities:
Deposits received for investment contracts	0	0
Maturities and withdrawals from investment contracts	0	0
Debt issuance costs	0	0
Intercompany loans with maturities of more than three months	0	0
Net (repayments of) proceeds from short-term intercompany loans	-1.3	135.1
Return of capital contributions to parent	-32	0
Contributions of capital from parent		0
Borrowings of consolidated investment entities	0	0
Repayments of borrowings of consolidated investment entities	0
Contributions from (distributions to) participants in consolidated investment entities, net	0	0
Common stock acquired - Share repurchase	0	0
Share-based compensation	0
Excess tax benefits on share-based compensation	0
Dividends paid	0	0
Net cash used in financing activities	-33.3	135.1
Net decrease in cash and cash equivalents	0.1	0.4
Cash and cash equivalents, beginning of year	1.6	1.1
Cash and cash equivalents, end of year	1.7	1.5
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	1,196	816.7
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	2,246.30	2,629.70
Equity securities, available-for-sale	0.8	32.2
Mortgage loans on real estate	312.8	307.4
Limited partnerships/corporations	33.3	60.9
Acquisition of:
Fixed maturities	-2,937.40	-3,057.20
Equity securities, available-for-sale	-1	-0.9
Mortgage loans on real estate	-713.3	-252.9
Limited partnerships/corporations	-33.7	-18.4
Short-term investments, net	307.9	22.9
Policy loans, net	29.9	27.3
Derivatives, net	-82.8	-190.1
Other investments, net	0.2	2
Sales from consolidated investment entities	767.6	571.8
Purchases within consolidated investment entities	-1,320.70	-1,258.80
Maturity of intercompany loans with maturities more than three months	0	0
Net maturity of short-term intercompany loans	-534.3	-180
Return of capital contributions from subsidiaries	0	0
Capital contributions to subsidiaries		0
Collateral received (delivered), net	360.2	89.4
Purchases of fixed assets, net	-8.6	-8.7
Payments for (Proceeds from) Other Investing Activities		-0.2
Net cash used in investing activities	-1,572.80	-1,223.60
Cash Flows from Financing Activities:
Deposits received for investment contracts	1,864.30	2,500
Maturities and withdrawals from investment contracts	-1,760.80	-2,809.70
Debt issuance costs	0	0
Intercompany loans with maturities of more than three months	-0.3	-0.6
Net (repayments of) proceeds from short-term intercompany loans	16	24.2
Return of capital contributions to parent	-32	-101
Contributions of capital from parent		156
Borrowings of consolidated investment entities	350	28.4
Repayments of borrowings of consolidated investment entities	-15.9
Contributions from (distributions to) participants in consolidated investment entities, net	-268.9	466.9
Common stock acquired - Share repurchase	0	0
Share-based compensation	0
Excess tax benefits on share-based compensation	1.3
Dividends paid	0	0
Net cash used in financing activities	153.7	264.2
Net decrease in cash and cash equivalents	-223.1	-142.7
Cash and cash equivalents, beginning of year	1,847.20	2,199.50
Cash and cash equivalents, end of year	1,624.10	2,056.80
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	-32	-26
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	0	0
Equity securities, available-for-sale	0	0
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Acquisition of:
Fixed maturities	0	0
Equity securities, available-for-sale	0	0
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Short-term investments, net	0	0
Policy loans, net	0	0
Derivatives, net	0	0
Other investments, net	0	0
Sales from consolidated investment entities	0	0
Purchases within consolidated investment entities	0	0
Maturity of intercompany loans with maturities more than three months	-0.3	-0.6
Net maturity of short-term intercompany loans	549	339.3
Return of capital contributions from subsidiaries	-32	-75
Capital contributions to subsidiaries		156
Collateral received (delivered), net	0	0
Purchases of fixed assets, net	0	0
Payments for (Proceeds from) Other Investing Activities		0
Net cash used in investing activities	516.7	419.7
Cash Flows from Financing Activities:
Deposits received for investment contracts	0	0
Maturities and withdrawals from investment contracts	0	0
Debt issuance costs	0	0
Intercompany loans with maturities of more than three months	0.3	0.6
Net (repayments of) proceeds from short-term intercompany loans	-549	-339.3
Return of capital contributions to parent	64	101
Contributions of capital from parent		-156
Borrowings of consolidated investment entities	0	0
Repayments of borrowings of consolidated investment entities	0
Contributions from (distributions to) participants in consolidated investment entities, net	0	0
Common stock acquired - Share repurchase	0	0
Share-based compensation	0
Excess tax benefits on share-based compensation	0
Dividends paid	0	0
Net cash used in financing activities	-484.7	-393.7
Net decrease in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of year	0	0
Cash and cash equivalents, end of year	$0	$0