Voya Financial (VOYA) 10-Q 12 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2014	6-May-14
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Voya Financial, Inc.	'
Entity Central Index Key	'0001535929	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	254,594,220

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Investments:	'	'
Fixed maturities, available-for-sale, at fair value (amortized cost of $65,607.9 at 2014 and $65,033.8 at 2013)	$70,449.70	$68,317.80
Fixed maturities, at fair value using the fair value option	3,082.10	2,935.30
Equity securities, available-for-sale, at fair value (cost of $244.8 at 2014 and $267.4 at 2013)	276.6	314.4
Short-term investments	1,046.20	1,048.10
Mortgage loans on real estate, net of valuation allowance of $3.4 at 2014 and $3.8 at 2013	9,258.10	9,312.20
Policy loans	2,119.70	2,147
Limited partnerships/corporations	218.9	236.4
Derivatives	1,044.70	1,149.30
Other investments	124.1	124.6
Securities pledged (amortized cost of $1,230.3 at 2014 and $1,457.9 at 2013)	1,271.30	1,465.70
Total investments	88,891.40	87,050.80
Cash and cash equivalents	2,499.80	2,840.80
Short-term investments under securities loan agreements, including collateral delivered	558.6	552.9
Accrued investment income	935.6	897.1
Reinsurance recoverable	6,785.80	6,702.20
Deferred policy acquisition costs and Value of business acquired	4,860.80	5,351.60
Sales inducements to contract holders	258.6	279
Deferred income taxes	0	162.1
Goodwill and other intangible assets	312.5	323.7
Other assets	1,016.10	1,036.50
Limited partnerships/corporations, at fair value	3,382.40	3,218.60
Cash and cash equivalents	570	710.7
Corporate loans, at fair value using the fair value option	5,490.70	4,965.30
Other assets	108.4	104.8
Assets held in separate accounts	107,840	106,827.10
Total assets	223,510.70	221,023.20
Liabilities and Shareholder's Equity	'	'
Future policy benefits	14,532.60	14,098.40
Contract owner account balances	69,723.50	69,908.30
Payables under securities loan agreements, including collateral held	864.5	769.4
Long-term debt	3,515	3,514.70
Funds held under reinsurance agreements	1,174.50	1,181.50
Derivatives	1,013.50	1,351.80
Pension and other post-employment provisions	467.5	474.9
Current income taxes	3.5	44.1
Deferred income taxes	272.1	0
Other liabilities	1,243	1,274.10
Collateralized loan obligations notes, at fair value using the fair value option	5,525.50	5,161.60
Other liabilities	967.5	903.3
Liabilities related to separate accounts	107,840	106,827.10
Total liabilities	207,142.70	205,509.20
Shareholder's equity:	'	'
Common stock ($0.01 par value per share; 900,000,000 shares authorized, 262,625,547 and 261,754,931 shares issued as of 2014 and 2013, respectively; 254,734,166 and 261,675,811 shares outstanding as of 2014 and 2013, respectively)	2.6	2.6
Treasury Stock, Value	-269.8	0
Additional paid-in capital	23,579.50	23,563.70
Accumulated other comprehensive income (loss)	2,577.50	1,849.10
Appropriated-consolidated investment entities	15.2	18.4
Unappropriated	-11,903.50	-12,161.60
Total Voya Financial, Inc. shareholders' equity	14,001.50	13,272.20
Noncontrolling interest	2,366.50	2,241.80
Total shareholders' equity	16,368	15,514
Total liabilities and shareholders' equity	$223,510.70	$221,023.20

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets Parenthetical (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Fixed maturities, available-for-sale, amortized cost	$65,607.90	$65,033.80
Equity securities, available-for-sale, cost	244.8	267.4
Mortgage loans on real estate, valuation allowance	3.4	3.8
Securities pledged amortized cost	$1,230.30	$1,457.90
Common stock, shares authorized	900,000,000	900,000,000
Common stock, shares issued	262,625,547	261,754,931
Common stock, shares outstanding	254,734,166	261,675,811
Treasury stock, shares	7,891,381	79,120
Common stock, par value	$0.01	$0.01

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Revenues:	'	'
Net investment income	$1,145.60	$1,198.70
Fee income	931.8	891.9
Premiums	600.9	471.9
Net realized gains (losses):	'	'
Total other-than-temporary impairments	-3.3	-11.6
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	0	-0.6
Net other-than-temporary impairments recognized in earnings	-3.3	-11
Other net realized capital gains (losses)	-187.3	-863.8
Total net realized capital gains (losses)	-190.6	-874.8
Other revenue	105.5	95.6
Net investment income (loss)	81.5	44.2
Changes in fair value related to collateralized loan obligations	-3.8	-8.9
Total revenues	2,670.90	1,818.60
Benefits and expenses:	'	'
Policyholder benefits	865	540.5
Interest credited to contract owner account balance	493.1	520.9
Operating expenses	789.5	759.1
Net amortization of deferred policy acquisition costs and value of business acquired	126.1	130.5
Interest expense	47.6	44.4
Interest expense	46.2	36.8
Other expense	1.1	0.7
Total benefits and expenses	2,368.60	2,032.90
Income (loss) before income taxes	302.3	-214.3
Income tax expense (benefit)	30.7	11.2
Net income (loss)	271.6	-225.5
Less: Net income (loss) attributable to noncontrolling interest	13.5	-13.5
Net income (loss) available to Voya Financial, Inc.'s common shareholders	$258.10	($212)
Basic	$0.99	($0.92)
Diluted	$0.98	($0.92)
Cash dividends declared per share of common stock	$0.01	$0

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Net income (loss)	$271.60	($225.50)
Other comprehensive income (loss), before tax:	'	'
Unrealized gains (losses) on securities	1,110.10	-399.9
Other-than-temporary impairments	15.6	10.9
Pension and other postretirement benefits liability	-3.4	-3.5
Other comprehensive income (loss), before tax	1,122.30	-392.5
Income tax expense (benefit) related to items of other comprehensive income (loss)	393.9	-134.6
Other comprehensive income (loss), after tax	728.4	-257.9
Comprehensive income (loss)	1,000	-483.4
Less: Comprehensive income (loss) attributable to the noncontrolling interest	13.5	-13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	$986.50	($469.90)

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
Ending balance at Dec. 31, 2012	$16,061.20	$2.30	$0	$22,917.60	$3,710.70	$6.40	($12,762.10)	$13,874.90	$2,186.30
Comprehensive income:	'	'	'	'	'	'	'	'	'
Net income (loss)	-225.5	'	'	'	'	'	-212	-212	-13.5
Other comprehensive income (loss), after tax	-257.9	'	'	'	-257.9	'	'	-257.9	'
Total comprehensive income (loss)	-483.4	'	'	'	'	'	'	-469.9	-13.5
Reclassification of noncontrolling interest	0	'	'	'	'	-6.2	'	-6.2	6.2
Common stock acquired - Share buyback	0	'	0	'	'	'	'	0	'
Dividends on common stock	0	'	'	0	'	'	'	0	'
Share-based compensation	-7.7	'	0	-7.7	'	'	'	-7.7	'
Contribution from (Distribution to) noncontrolling interest, net	28.8	'	'	'	'	'	'	'	28.8
Beginning balance at Mar. 31, 2013	15,598.90	2.3	0	22,909.90	3,452.80	0.2	-12,974.10	13,391.10	2,207.80
Ending balance at Dec. 31, 2013	15,514	2.6	0	23,563.70	1,849.10	18.4	-12,161.60	13,272.20	2,241.80
Comprehensive income:	'	'	'	'	'	'	'	'	'
Net income (loss)	271.6	'	'	'	'	'	258.1	258.1	13.5
Other comprehensive income (loss), after tax	728.4	'	'	'	728.4	'	'	728.4	'
Total comprehensive income (loss)	1,000	'	'	'	'	'	'	986.5	13.5
Reclassification of noncontrolling interest	0	'	'	'	'	-3.2	'	-3.2	3.2
Common stock acquired - Share buyback	-258.9	'	-258.9	'	'	'	'	-258.9	'
Dividends on common stock	-2.6	'	'	-2.6	'	'	'	-2.6	'
Share-based compensation	7.5	'	-10.9	18.4	'	'	'	7.5	'
Contribution from (Distribution to) noncontrolling interest, net	108	'	'	'	'	'	'	'	108
Beginning balance at Mar. 31, 2014	$16,368	$2.60	($269.80)	$23,579.50	$2,577.50	$15.20	($11,903.50)	$14,001.50	$2,366.50

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Cash Flows [Abstract]	'	'
Net cash provided by (used in) operating activities	$786.60	($28.40)
Proceeds from the sale, maturity, disposal or redemption of:	'	'
Fixed maturities	2,629.70	4,455.80
Equity securities, available-for-sale	47.7	28.4
Mortgage loans on real estate	307.4	318.3
Limited partnerships/corporations	60.9	18
Acquisition of:	'	'
Fixed maturities	-3,057.20	-4,802.80
Equity securities, available-for-sale	-7.4	-9.4
Mortgage loans on real estate	-252.9	-581.4
Limited partnerships/corporations	-18.4	-9.8
Short-term investments, net	1.9	2,999.10
Policy loans, net	27.3	-4.1
Derivatives, net	-178.6	-1,089.60
Other investments, net	2	11.8
Sales from consolidated investment entities	571.8	573.8
Purchases within consolidated investment entities	-1,258.80	-613.8
Collateral received (delivered), net	89.4	-360.5
Purchases of fixed assets, net	-8.7	-6.6
Net cash (used in) provided by investing activities	-1,043.90	927.2
Cash Flows from Financing Activities:	'	'
Deposits received for investment contracts	2,500	2,936.20
Maturities and withdrawals from investment contracts	-2,809.70	-2,996.60
Proceeds from issuance of debt with maturities of more than three months	0	1,000.60
Repayment of debt with maturities of more than three months	0	-1,304.60
Short-term debt, net	0	-169.7
Debt issuance costs	-16.7	-6.5
Borrowings of consolidated investment entities	28.4	0
Contributions from (distributions to) participants in consolidated investment entities	466.9	642.7
Common stock acquired - Share buyback	-250	0
Dividends paid	-2.6	0
Net cash (used in) provided by financing activities	-83.7	102.1
Net (decrease) increase in cash and cash equivalents	-341	1,000.90
Cash and cash equivalents, beginning of year	2,840.80	1,786.80
Cash and cash equivalents, end of year	2,499.80	2,787.70
Supplemental cash flow information:	'	'
Income taxes paid (received), net	31	-3.2
Interest paid	$67.20	$55.10

Business_Basis_of_Presentation

Business, Basis of Presentation and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
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, guaranteed investment contracts and funding agreements. The Company provides its principal products and services in three 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. The Company also has a Corporate segment, which includes the financial data not directly related to the businesses, and Closed Block segments. See Note 14. Segments to these Condensed Consolidated Financial Statements.
	In 2009, 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, 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 in the future 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 ING U.S., 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 shares of ING U.S., 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%.
	On March 25, 2014, ING Group completed a sale of 30,475,000 shares of common stock of Voya Financial, Inc. in a registered public offering (the "March 2014 Offering"). Also on March 25, 2014, pursuant to the terms of a share repurchase agreement between ING Group and Voya Financial, Inc., Voya Financial, Inc. acquired 7,255,853 shares of its common stock from ING Group (the "Direct Share Buyback") (the offering and the Direct Share Buyback collectively, the "Transactions"). Upon completion of the Transactions, ING Group's ownership of Voya Financial, Inc. was reduced to approximately 43%.
	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 Note 13. Consolidated Investment Entities to these Condensed Consolidated Financial Statements. Intercompany transactions and balances have been eliminated.
	The accompanying Condensed Consolidated Financial Statements reflect all adjustments (including normal, recurring adjustments) necessary to present fairly the financial position of the Company as of March 31, 2014, and its results of operations, comprehensive income, changes in shareholders' equity and statements of cash flows for the three months ended March 31, 2014 and 2013, in conformity with U.S. GAAP. Interim results are not necessarily indicative of full year performance. The December 31, 2013 Consolidated Balance Sheet is from the audited Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, filed with the Securities and Exchange Commission ("SEC"), which included all disclosures required by U.S. GAAP. Therefore, these unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements of the Company included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013.
	Adoption of New Pronouncements
	Presentation of Unrecognized Tax Benefits
	In July 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2013-11, "Income Taxes (Accounting Standards Codification ("ASC") Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists" ("ASU 2013-11"), which clarifies that:
	•	An unrecognized tax benefit should be presented as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss or a tax credit carryforward, except,
	•	An unrecognized tax benefit should be presented as a liability and not be combined with a deferred tax asset (i) to the extent a net operating loss carryforward, a similar tax loss or a tax credit carryforward is not available at the reporting date to settle any additional income taxes that would result from the disallowance of a tax position or (ii) the tax law does not require the entity to use, or the entity does not intend to use, the deferred tax asset for such a purpose.
	•	The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date.
	The provisions of ASU 2013-11 were adopted prospectively by the Company on January 1, 2014, to all unrecognized tax benefits existing on that date. The adoption had no effect on the Company's financial condition, results of operations or cash flows, as the guidance is consistent with that previously applied.
	Investment Companies
	In June 2013, the FASB issued ASU 2013-08, "Financial Services-Investment Companies (ASC Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements" ("ASU 2013-08"), which provides comprehensive guidance for assessing whether an entity is an investment company and requires an investment company to measure noncontrolling ownership interests in other investment companies at fair value. ASU 2013-08 also requires an entity to disclose that it is an investment company and any changes to that status, as well as information about financial support provided or required to be provided to investees.
	The provisions of ASU 2013-08 were adopted prospectively by the Company on January 1, 2014, for entities that are investment companies at that date. The adoption had no effect on the Company's financial condition, results of operations or cash flows.
	Joint and Several Liability Arrangements
	In February 2013, the FASB issued ASU 2013-04, "Liabilities (ASC Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date" ("ASU 2013-04"), which requires an entity to measure obligations resulting from joint and several liable arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, as the sum of (1) the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and (2) any additional amount it expects to pay on behalf of its co-obligors. ASU 2013-04 also requires an entity to disclose the nature and amount of the obligation, as well as other information about those obligations. The adoption had no effect on the Company's financial condition, results of operations or cash flows, as the Company did not have any fixed obligations under joint and several liable arrangements as of January 1, 2014.
	Fees Paid to the Federal Government by Health Insurers
	In July 2011, the FASB issued ASU 2011-06, "Other Expenses (Topic 720): Fees Paid to the Federal Government by Health Insurers" ("ASU 2011-06"), which specifies how health insurers should recognize and classify the annual fee imposed by the Patient Protection and Affordable Care Act as amended by the Health Care Education Reconciliation Act (the "Acts"). The liability for the fee should be estimated and recorded in full at the time the entity provides qualifying health insurance in the year in which the fee is payable, with a corresponding deferred cost that is amortized to expense.
	The provisions of ASU 2011-06 were adopted by the Company on January 1, 2014, when the fee initially became effective. The adoption of ASU 2011-06 had no effect on the Company's financial condition, results of operations or cash flows, as the amount of net premium written for qualifying health insurance by the Company in 2014 is expected to be below the $25.0 threshold as defined by the Acts and, thus, not subject to the fee.
	Future Adoption of Accounting Pronouncements
	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 does not expect ASU 2014-08 to have an impact on its financial condition, results of operations, cash flows or disclosures, as the Company does not have any discontinued operations as of March 31, 2014.

Investments

Investments	3 Months Ended
	Mar. 31, 2014
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, 2014:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	4,991.60		$	315.6			$	44.1		$	—		$	5,263.10		$	—
	U.S. Government agencies and authorities	610.6			33.7				0.2			—			644.1			—
	State, municipalities and political subdivisions	276.5			17.5				0.4			—			293.6			—
	U.S. corporate securities	36,658.80			2,876.30				361.6			—			39,173.50			11.8
	Foreign securities(1):
	Government	886.3			45				24.1			—			907.2			—
	Other	14,859.90			1,062.20				88.7			—			15,833.40			—
	Total foreign securities	15,746.20			1,107.20				112.8			—			16,740.60			—
	Residential mortgage-backed securities:
	Agency	5,319.70			432.7				41.9			76.2			5,786.70			0.3
	Non-Agency	1,054.70			175.3				10.9			46.9			1,266.00			93.3
	Total Residential mortgage-backed securities	6,374.40			608				52.8			123.1			7,052.70			93.6
	Commercial mortgage-backed securities	3,472.80			323.9				0.6			—			3,796.10			—
	Other asset-backed securities	1,789.40			81.4				31.4			—			1,839.40			5
	Total fixed maturities, including securities pledged	69,920.30			5,363.60				603.9			123.1			74,803.10			110.4
	Less: Securities pledged	1,230.30			50.4				9.4			—			1,271.30			—
	Total fixed maturities	68,690.00			5,313.20				594.5			123.1			73,531.80			110.4
	Equity securities:
	Common stock	194.3			2.3				0.2			—			196.4			—
	Preferred stock	50.5			29.7				—			—			80.2			—
	Total equity securities	244.8			32				0.2			—			276.6			—
	Total fixed maturities and equity securities investments	$	68,934.80		$	5,345.20			$	594.7		$	123.1		$	73,808.40		$	110.4
	(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.
	Available-for-sale and FVO fixed maturities and equity securities were as follows as of December 31, 2013:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	5,094.00		$	174			$	86.8		$	—		$	5,181.20		$	—
	U.S. Government agencies and authorities	598			22.3				1.4			—			618.9			—
	State, municipalities and political subdivisions	272			10.6				1.5			—			281.1			—
	U.S. corporate securities	36,010.30			2,174.50				706.2			—			37,478.60			12.8
	Foreign securities(1):
	Government	1,044.00			49.6				42.2			—			1,051.40			—
	Other	14,617.40			864.2				176.5			—			15,305.10			—
	Total foreign securities	15,661.40			913.8				218.7			—			16,356.50			—
	Residential mortgage-backed securities:
	Agency	5,379.20			431.1				62.1			79.2			5,827.40			0.4
	Non-Agency	1,101.10			166.2				18.3			47.3			1,296.30			103.2
	Total Residential mortgage-backed securities	6,480.30			597.3				80.4			126.5			7,123.70			103.6
	Commercial mortgage-backed securities	3,427.90			327.7				3.5			—			3,752.10			4.4
	Other asset-backed securities	1,883.10			81.6				38			—			1,926.70			5.2
	Total fixed maturities, including securities pledged	69,427.00			4,301.80				1,136.50			126.5			72,718.80			126
	Less: Securities pledged	1,457.90			24.6				16.8			—			1,465.70			—
	Total fixed maturities	67,969.10			4,277.20				1,119.70			126.5			71,253.10			126
	Equity securities:
	Common stock	214.3			5.1				0.9			—			218.5			—
	Preferred stock	53.1			43.4				0.6			—			95.9			—
	Total equity securities	267.4			48.5				1.5			—			314.4			—
	Total fixed maturities and equity securities investments	$	68,236.50		$	4,325.70			$	1,121.20		$	126.5		$	71,567.50		$	126
	(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.
	The amortized cost and fair value of fixed maturities, including securities pledged, as of March 31, 2014, 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	$	1,999.30		$	2,032.50
After one year through five years	13,858.50			14,748.50
After five years through ten years	21,329.90			22,070.10
After ten years	21,096.00			23,263.80
Mortgage-backed securities	9,847.20			10,848.80
Other asset-backed securities	1,789.40			1,839.40
Fixed maturities, including securities pledged	$	69,920.30		$	74,803.10
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, 2014 and December 31, 2013, 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, 2014
Communications	$	3,966.90		$	403.4			$	29.2		$	4,341.10
Financial	6,990.90			675.5				42.7			7,623.70
Industrial and other companies	29,959.30			1,964.80				293.2			31,630.90
Utilities	9,165.50			778.4				70.8			9,873.10
Transportation	1,436.10			116.4				14.4			1,538.10
Total	$	51,518.70		$	3,938.50			$	450.3		$	55,006.90
December 31, 2013
Communications	$	4,016.20		$	293			$	73.4		$	4,235.80
Financial	6,640.70			566.6				72.6			7,134.70
Industrial and other companies	29,303.10			1,524.50				564.5			30,263.10
Utilities	9,200.60			570				142.2			9,628.40
Transportation	1,467.10			84.6				30			1,521.70
Total	$	50,627.70		$	3,038.70			$	882.7		$	52,783.70
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 DAC, 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, 2014 and December 31, 2013, approximately 41.5% and 38.3%, 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, 2014 and December 31, 2013, 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, 2014 and December 31, 2013, the fair value of loaned securities was $449.4 and $435.4, respectively, and is included in Securities pledged on the Condensed Consolidated Balance Sheets. As of March 31, 2014 and December 31, 2013, collateral retained by the lending agent and invested in liquid assets on the Company's behalf was $466.3 and $451.0, respectively, and recorded in Short-term investments under securities loan agreements, including collateral delivered on the Condensed Consolidated Balance Sheets. As of March 31, 2014 and December 31, 2013, liabilities to return collateral of $466.3 and $451.0, 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, 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	$	1,315.70		$	7.9			$	927.9		$	29.4		$	45.1		$	6.8	$	2,288.70	$	44.1
U.S. Government agencies and authorities	6.8			—			*	57.5			0.2			—			—		64.3		0.2
U.S. corporate, state and municipalities	1,316.40			14.2				5,743.40			247.1			1,112.80			100.7		8,172.60		362
Foreign	345.1			2.4				1,842.90			84.5			295.9			25.9		2,483.90		112.8
Residential mortgage-backed	427.1			2.7				950.4			27.1			392.2			23		1,769.70		52.8
Commercial mortgage-backed	28.6			0.6				—			—			—			—		28.6		0.6
Other asset-backed	146.7			0.7				45.9			0.4			288.1			30.3		480.7		31.4
Total	$	3,586.40		$	28.5			$	9,568.00		$	388.7		$	2,134.10		$	186.7	$	15,288.50	$	603.9
* 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, 2013:
	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	$	1,559.50		$	24.3			$	1,087.60		$	52.6		$	41.9		$	9.9	$	2,689.00	$	86.8
U.S. Government agencies and authorities	9.5			—			*	55.9			1.4			—			—		65.4		1.4
U.S. corporate, state and municipalities	3,524.90			78.5				6,893.90			519.6			821.9			109.6		11,240.70		707.7
Foreign	1,133.60			16				2,447.80			184.3			179.1			18.4		3,760.50		218.7
Residential mortgage-backed	919.1			8.3				1,019.60			40.6			377.9			31.5		2,316.60		80.4
Commercial mortgage-backed	235.8			3.3				—			—			6.2			0.2		242		3.5
Other asset-backed	150.6			0.9				105.5			1.5			299.3			35.6		555.4		38
Total	$	7,533.00		$	131.3			$	11,610.30		$	800		$	1,726.30		$	205.2	$	20,869.60	$	1,136.50
* Less than $0.1
Of the unrealized capital losses aged more than twelve months, the average market value of the related fixed maturities was 92.0% and 89.4% of the average book value as of March 31, 2014 and December 31, 2013, 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, 2014
Six months or less below amortized cost	$	3,892.30		$	35.4			$	69.1		$	8.5		322		9
More than six months and twelve months or less below amortized cost	9,935.50			12.9				381.6			4.1			622		5
More than twelve months below amortized cost	2,004.70			11.6				136.9			3.7			338		15
Total	$	15,832.50		$	59.9			$	587.6		$	16.3		1,282		29
December 31, 2013
Six months or less below amortized cost	$	7,883.30		$	80.5			$	166		$	18.6		570		20
More than six months and twelve months or less below amortized cost	12,339.70			67.6				776.8			16.7			798		8
More than twelve months below amortized cost	1,579.20			55.8				144.5			13.9			302		22
Total	$	21,802.20		$	203.9			$	1,087.30		$	49.2		1,670		50
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, 2014
U.S. Treasuries	$	2,332.80		$	—			$	44.1		$	—		28		—
U.S. Government agencies and authorities	64.5			—				0.2			—			3		—
U.S. corporate, state and municipalities	8,506.00			28.6				355.1			6.9			520		3
Foreign	2,593.30			3.4				112			0.8			210		1
Residential mortgage-backed	1,814.60			7.9				49			3.8			416		15
Commercial mortgage-backed	29.2			—			*	0.6			—		*	8		1
Other asset-backed	492.1			20				26.6			4.8			97		9
Total	$	15,832.50		$	59.9			$	587.6		$	16.3		1,282		29
December 31, 2013
U.S. Treasuries	$	2,750.50		$	25.3			$	81.4		$	5.4		32		1
U.S. Government agencies and authorities	66.8			—				1.4			—			3		—
U.S. corporate, state and municipalities	11,892.60			55.8				694.2			13.5			744		5
Foreign	3,944.20			35				211			7.7			300		6
Residential mortgage-backed	2,361.40			35.6				70.2			10.2			471		25
Commercial mortgage-backed	245.5			—				3.5			—			16		—
Other asset-backed	541.2			52.2				25.6			12.4			104		13
Total	$	21,802.20		$	203.9			$	1,087.30		$	49.2		1,670		50
* 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, 2014	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS > 100%	$	38.9		$	2.6			$	4.2		$	0.6
Non-agency RMBS 90% - 100%	80.5			7.1				5.1			1.6
Non-agency RMBS 80% - 90%	99.9			4.8				9.1			1.2
Non-agency RMBS < 80%	281			6.8				15.7			2.1
Agency RMBS	1,605.80			4.5				39.3			2.6
Other ABS (Non-RMBS)	200.6			2.1				2.2			0.5
Total RMBS and Other ABS	$	2,306.70		$	27.9			$	75.6		$	8.6
	Credit Enhancement Percentage
	Amortized Cost							Unrealized Capital Losses
March 31, 2014	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS 10% +	$	387.3		$	17.9			$	27.8		$	4.4
Non-agency RMBS 5% - 10%	20.6			—				0.7			—
Non-agency RMBS 0% - 5%	34.1			—				1			—
Non-agency RMBS 0%	58.3			3.4				4.6			1.1
Agency RMBS	1,605.80			4.5				39.3			2.6
Other ABS (Non-RMBS)	200.6			2.1				2.2			0.5
Total RMBS and Other ABS	$	2,306.70		$	27.9			$	75.6		$	8.6
	Fixed Rate/Floating Rate
	Amortized Cost							Unrealized Capital Losses
March 31, 2014	< 20%			> 20%				< 20%			> 20%
Fixed Rate	$	1,317.30		$	4.2			$	36.3		$	1.4
Floating Rate	989.4			23.7				39.3			7.2
Total	$	2,306.70		$	27.9			$	75.6		$	8.6
(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, 2013	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS > 100%	$	75.7		$	36.4			$	2.9		$	8.3
Non-agency RMBS 90% - 100%	156.8			24.1				8.6			5.7
Non-agency RMBS 80% - 90%	151.3			5.9				8.4			1.7
Non-agency RMBS < 80%	284.7			8				15.5			2.2
Agency RMBS	2,008.90			11.3				57.9			4.2
Other ABS (Non-RMBS)	225.2			2.1				2.5			0.5
Total RMBS and Other ABS	$	2,902.60		$	87.8			$	95.8		$	22.6
	Credit Enhancement Percentage
	Amortized Cost							Unrealized Capital Losses
December 31, 2013	< 20%			> 20%				< 20%			> 20%
RMBS and Other ABS(1)
Non-agency RMBS 10% +	$	407.1		$	47.7			$	27.6		$	11.1
Non-agency RMBS 5% - 10%	43.9			0.8				1.2			0.2
Non-agency RMBS 0% - 5%	90.4			3.9				1.9			0.8
Non-agency RMBS 0%	127.1			22				4.7			5.8
Agency RMBS	2,008.90			11.3				57.9			4.2
Other ABS (Non-RMBS)	225.2			2.1				2.5			0.5
Total RMBS and Other ABS	$	2,902.60		$	87.8			$	95.8		$	22.6
	Fixed Rate/Floating Rate
	Amortized Cost							Unrealized Capital Losses
December 31, 2013	< 20%			> 20%				< 20%			> 20%
Fixed Rate	$	1,723.70		$	4.4			$	50.5		$	1.6
Floating Rate	1,178.90			83.4				45.3			21
Total	$	2,902.60		$	87.8			$	95.8		$	22.6
(1) For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.
All investments with fair values less than amortized cost are included in the Company's other-than-temporary impairments analysis, and 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 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 a particular security within the trust will 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. Unrealized losses on below investment grade securities are principally related to RMBS (primarily Alt-A RMBS), and ABS (primarily subprime RMBS) largely due to economic and market uncertainties including concerns over unemployment levels, lower interest rate environment on floating rate securities requiring higher risk premiums since purchase and valuations on residential real estate supporting non-agency RMBS. 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. As of March 31, 2014, the Company had no new troubled debt restructurings for private placement or commercial mortgage loans. As of December 31, 2013, the Company had no new private placement troubled debt restructurings and had 21 new commercial mortgage loan troubled debt restructurings with a pre-modification and post modification carrying value of $91.0. Of these 21 commercial mortgage loans, 20 comprise a portfolio of cross-defaulted, cross-collateralized individual loans, which are owned by the same sponsor. Between the date of the troubled debt restructurings and March 31, 2014, these loans have repaid $4.2 in principal.
As of March 31, 2014 and December 31, 2013, 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 all 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, 2014			December 31, 2013
Commercial mortgage loans	$	9,261.50		$	9,316.00
Collective valuation allowance	(3.4		)	(3.8		)
Total net commercial mortgage loans	$	9,258.10		$	9,312.20
There were no impairments taken on the mortgage loan portfolio for the three months ended March 31, 2014 and 2013.
The following table summarizes the activity in the allowance for losses for all commercial mortgage loans for the periods indicated:
	March 31, 2014			December 31, 2013
Collective valuation allowance for losses, balance at January 1	$	3.8		$	3.9
Addition to (reduction of) allowance for losses	(0.4		)	(0.1		)
Collective valuation allowance for losses, end of period	$	3.4		$	3.8
The carrying values and unpaid principal balances of impaired mortgage loans were as follows as of the dates indicated:
	March 31, 2014			December 31, 2013
Impaired loans with allowances for losses	$	—		$	—
Impaired loans without allowances for losses	94.2			94.3
Subtotal	94.2			94.3
Less: Allowances for losses on impaired loans	—			—
Impaired loans, net	$	94.2		$	94.3
Unpaid principal balance of impaired loans	$	96.6		$	96.7
The following table presents information on impaired loans, restructured loans, loans 90 days or more past due and loans in foreclosure as of the dates indicated:
	March 31, 2014			December 31, 2013
Troubled debt restructured loans	$	86.6		$	86.6
Loans 90 days or more past due, interest no longer accruing, at amortized cost	—			5.1
Loans in foreclosure, at amortized cost	—			—
Unpaid principal balance of loans 90 days or more past due, interest no longer accruing	—			5.1
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.
The following table presents the aging of past due mortgage loans at carrying value as of the dates indicated:
($ in millions)	30 days or less past due			31 to 90 days past due				91 to 180 days past due			181 days or more past due			Total
As of March 31, 2014	$	—		$	—			$	—		$	—		$	—
As of December 31, 2013	—			5.1				—			—			5.1
There were no mortgage loans in the Company's portfolio in process of foreclosure as of March 31, 2014 or December 31, 2013.
There were no loans in arrears with respect to principal and interest as of March 31, 2014. There was one loan in arrears with respect to principal and interest as of December 31, 2013 with a total amortized cost of $5.1.
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,
	2014			2013
Impaired loans, average investment during the period (amortized cost) (1)	$	94.2		$	16.9
Interest income recognized on impaired loans, on an accrual basis (1)	1.3			0.2
Interest income recognized on impaired loans, on a cash basis (1)	1			0.2
Interest income recognized on troubled debt restructured loans, on an accrual basis	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, 2014 (1)			December 31, 2013(1)
Loan-to-Value Ratio:
0% - 50%	$	1,604.30		$	1,782.60
50% - 60%	2,484.60			2,390.00
60% - 70%	4,708.80			4,668.30
70% - 80%	445.1			455.8
80% and above	18.7			19.3
Total Commercial mortgage loans	$	9,261.50		$	9,316.00
(1) Balances do not include allowance for mortgage loan credit losses.
The following table presents the DSC ratios as of the dates indicated:
	March 31, 2014 (1)			December 31, 2013(1)
Debt Service Coverage Ratio:
Greater than 1.5x	$	6,333.10		$	6,346.50
1.25x - 1.5x	1,515.30			1,520.90
1.0x - 1.25x	973.2			980.6
Less than 1.0x	439.7			467.8
Commercial mortgage loans secured by land or construction loans	0.2			0.2
Total Commercial mortgage loans	$	9,261.50		$	9,316.00
(1) Balances do not include allowance for mortgage loan credit 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, 2014 (1)						December 31, 2013(1)
	Gross Carrying Value			% of			Gross Carrying Value			% of
				Total						Total
Commercial Mortgage Loans by U.S. Region:
Pacific	$	2,369.20		25.6	%		$	2,281.80		24.5	%
South Atlantic	1,964.60			21.2	%		1,936.00			20.8	%
Middle Atlantic	1,113.20			12	%		1,112.00			11.9	%
West South Central	1,112.70			12	%		1,122.30			12	%
East North Central	1,055.60			11.4	%		1,037.50			11.1	%
Mountain	771.7			8.3	%		790.4			8.5	%
West North Central	525.6			5.7	%		517.2			5.6	%
East South Central	198.7			2.2	%		200.7			2.2	%
New England	150.2			1.6	%		318.1			3.4	%
Total Commercial mortgage loans	$	9,261.50		100	%		$	9,316.00		100	%
(1) Balances do not include allowance for mortgage loan credit losses.
	March 31, 2014 (1)						December 31, 2013(1)
	Gross Carrying Value			% of			Gross Carrying Value			% of
				Total						Total
Commercial Mortgage Loans by Property Type:
Retail	$	2,951.00		31.9	%		$	2,936.90		31.5	%
Industrial	2,818.60			30.4	%		2,848.00			30.6	%
Apartments	1,348.70			14.6	%		1,296.10			13.9	%
Office	1,089.00			11.7	%		1,242.20			13.3	%
Hotel/Motel	382.1			4.1	%		430.6			4.6	%
Mixed Use	305.8			3.3	%		184.1			2	%
Other	366.3			4	%		378.1			4.1	%
Total Commercial mortgage loans	$	9,261.50		100	%		$	9,316.00		100	%
(1) Balances do not include allowance for mortgage loan credit losses.
The following table sets forth the breakdown of mortgages by year of origination as of the dates indicated:
	March 31, 2014 (1)			December 31, 2013(1)
Year of Origination:
2014	$	252.9		$	—
2013	2,187.00			2,199.80
2012	1,731.50			1,743.30
2011	1,804.90			1,835.90
2010	394.4			409.8
2009	148.9			149.5
2008 and prior	2,741.90			2,977.70
Total Commercial mortgage loans	$	9,261.50		$	9,316.00
(1) Balances do not include allowance for mortgage loan credit 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,
	2014						2013
	Impairment			No. of			Impairment			No. of
				Securities						Securities
U.S. corporate	$	0.4		1			$	—		—
Residential mortgage-backed	1.6			37			3.6			74
Commercial mortgage-backed	0.2			2			0.1			2
Other asset-backed	0.1			2			7.3			2
Equity	1			2			—			—
Total	$	3.3		44			$	11		78
The above table includes $3.1 and $3.6 of write-downs related to credit impairments for the three months ended March 31, 2014 and 2013, respectively, in Other-than-temporary impairments, which are recognized in the Condensed Consolidated Statements of Operations. The remaining $0.2 and $7.4 in write-downs for the three months ended March 31, 2014 and 2013, respectively, are related to intent impairments.
The following tables summarize these intent impairments, which are also recognized in earnings, by type for the periods indicated:
	Three Months Ended March 31,
	2014						2013
	Impairment			No. of			Impairment			No. of
				Securities						Securities
Commercial mortgage-backed	$	0.2		2			$	0.1		2
Other asset-backed	—			—			7.3			2
Total	$	0.2		2			$	7.4		4
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,
	2014			2013
Balance at January 1	$	102.8		$	114.7
Additional credit impairments:
On securities not previously impaired	1.1			0.2
On securities previously impaired	1			3
Reductions:
Securities intent impaired	—			—
Securities sold, matured, prepaid or paid down	(3.8		)	(5.5		)
Balance at March 31	$	101.1		$	112.4
Net Investment Income
The following table summarizes Net investment income for the periods indicated:
	Three Months Ended March 31,
	2014			2013
Fixed maturities	$	984.8		$	1,012.60
Equity securities, available-for-sale	3.8			2.6
Mortgage loans on real estate	115.3			118.2
Policy loans	28			29.9
Short-term investments and cash equivalents	0.8			0.9
Other	14.1			35.9
Gross investment income	1,146.80			1,200.10
Less: investment expenses	1.2			1.4
Net investment income	$	1,145.60		$	1,198.70
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) are comprised of 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,
	2014			2013
Fixed maturities, available-for-sale, including securities pledged	$	13.7		$	9.4
Fixed maturities, at fair value option	(18.9		)	(107.6		)
Equity securities, available-for-sale	17.1			0.2
Derivatives	53.8			(1,099.7		)
Embedded derivative - fixed maturities	(3.3		)	(23.3		)
Embedded derivative - product guarantees	(255.1		)	346.3
Other investments	2.1			(0.1		)
Net realized capital gains (losses)	$	(190.6	)	$	(874.8	)
After-tax net realized capital gains (losses)	$	(118.3	)	$	(568.7	)
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,
	2014			2013
Proceeds on sales	$	1,494.90		$	3,212.70
Gross gains	39.7			42
Gross losses	19.8			14.4

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2014
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 margin 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. An increase in the equity volatility results in a 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 externally managed variable bond funds 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 a coinsurance with a funds withheld arrangement which contains an embedded derivative whose fair value is based on the change in the fair value of the underlying assets held in trust. The embedded derivatives for certain fixed maturity instruments, certain annuity products and coinsurance with funds withheld arrangements are reported with the host contract in investments, in Future policy benefits or Funds held under reinsurance agreements, respectively, on the Condensed Consolidated Balance Sheets. Changes in the fair value of embedded derivatives within fixed maturity investments and within annuity products are recorded in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations. Changes in fair value of embedded derivatives with reinsurance agreements are reported in Policyholder benefits in the Condensed Consolidated Statements of Operations.
	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, 2014									December 31, 2013
		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	$	723.5		$	94.9		$	—		$	786	$	81	$	0.5
	Foreign exchange contracts	174.7			5.5			2.1			174.7		6.3		1.6
	Fair value hedges:
	Interest rate contracts	873.5			3.6			62.6			873.5		4.8		64.7
	Derivatives: Non-qualifying for hedge accounting(1)
	Interest rate contracts(2)	60,311.60			666.7			804.6			63,122.00		826.2		1,174.30
	Foreign exchange contracts	1,233.20			21.1			29.2			1,281.70		17.8		43.3
	Equity contracts	17,412.70			217.6			102.6			11,725.90		172.7		52.9
	Credit contracts	3,221.00			35.3			12.4			3,221.00		40.5		14.5
	Embedded derivatives:
	Within fixed maturity investments	N/A			123.1			—			N/A		126.5		—
	Within annuity products	N/A			—			2,969.30			N/A		—		2,645.60
	Within reinsurance agreements	N/A			—			95.9			N/A		—		79
	Total				$	1,167.80		$	4,078.70				$	1,275.80	$	4,076.40
	(1) Open derivative contracts are reported as Derivatives assets or liabilities on the Condensed Consolidated Balance Sheets at fair value.
	(2) As of March 31, 2014, includes a notional amount, asset fair value and liability fair value for interest rate caps of $11.8 billion, $101.0 and $17.7, respectively. As of December 31, 2013, includes a notional amount, asset fair value and liability fair value for interest rate caps of $11.8 billion, $162.5 and $29.7, respectively.
	N/A - Not Applicable
	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, 2014 and December 31, 2013. 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 which do not qualify as effective accounting hedges under ASC Topic 815.
	The maximum length of time over which the Company is hedging its exposure to the variability in future cash flows for forecasted transactions is through the fourth quarter of 2016.
	Although the Company has not elected to net its derivative exposures, the notional amounts and fair values of 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, 2014
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	3,221.00		$	35.3		$	12.4
	Equity contracts	9,707.40			212.1			44.6
	Foreign exchange contracts	1,407.90			26.6			31.3
	Interest rate contracts	61,908.60			765.2			867.2
					1,039.20			955.5
	Counterparty netting(1)				(589.5		)	(589.5		)
	Cash collateral netting(1)				(326.6		)	(13.6		)
	Securities collateral netting(1)				(43.7		)	(260.9		)
	Net receivables/payables				$	79.4		$	91.5
	(1) Represents the netting of receivable balances with payable balances, net of collateral, for the same counterparty under eligible netting agreements.
		31-Dec-13
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	3,221.00		$	40.5		$	14.5
	Equity contracts	4,513.50			170.7			32
	Foreign exchange contracts	1,456.40			24.1			44.9
	Interest rate contracts	64,734.10			912			1,239.50
					1,147.30			1,330.90
Counterparty netting(1)				(701.0		)	(701.0		)
Cash collateral netting(1)				(241.7		)	(15.7		)
Securities collateral netting(1)				(35.9		)	(479.1		)
Net receivables/payables				$	168.7		$	135.1
(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 Company's Over-The-Counter ("OTC") Derivative International Swaps and Derivatives Association, Inc. ("ISDA") agreements, the Company may receive from, or deliver to, counterparties collateral to assure that all 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, 2014, the Company held $283.7 and $39.1 of net cash collateral related to OTC derivative contracts and cleared derivative contracts, respectively. As of December 31, 2013, the Company held $214.7 and $18.8 of net cash collateral related to OTC derivative contracts and cleared derivative contracts, respectively. In addition, as of March 31, 2014 and December 31, 2013, the Company delivered securities as collateral of $821.9 and $1.0 billion, respectively.
Net realized gains (losses) on derivatives were as follows for the periods indicated:
	Three Months Ended March 31,
	2014			2013
Derivatives: Qualifying for hedge accounting(1)
Cash flow hedges:
Interest rate contracts	$	0.2		$	0.1
Foreign exchange contracts	0.4			—
Fair value hedges:
Interest rate contracts	(5.2		)	1.3
Derivatives: Non-qualifying for hedge accounting(2)
Interest rate contracts	204.2			(256.0		)
Foreign exchange contracts	(1.7		)	87.1
Equity contracts	(144.9		)	(939.1		)
Credit contracts	0.8			6.9
Embedded derivatives:
Within fixed maturity investments(2)	(3.3		)	(23.3		)
Within annuity products(2)	(255.1		)	346.3
Within reinsurance agreements(3)	(16.7		)	14.7
Total	$	(221.3	)	$	(762.0	)
(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, 2014 and 2013, 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. The Company has ISDA agreements with each counterparty with which it conducts business and tracks the collateral positions for each counterparty. To the extent cash collateral is received, it is included in Payables under securities loan agreements, including collateral held, 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, 2014, the fair values of credit default swaps of $35.3 and $12.4 were included in Derivatives assets and Derivatives liabilities, respectively, on the Condensed Consolidated Balance Sheets. As of December 31, 2013, the fair value of credit default swaps of $40.5 and $14.5 were included in Derivatives assets and Derivatives liabilities, respectively, on the Condensed Consolidated Balance Sheets. As of March 31, 2014 and December 31, 2013 the maximum potential future net exposure to the Company was $1.7 billion, net of purchased protection of $0.5 billion on credit default swaps, respectively. 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

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	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 the Fair Value Measurements and disclosures of the FASB ASC Topic 820. 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 included in the Annual Report on Form 10-K for the year ended December 31, 2013. 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, 2014:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	4,677.10			$	586			$	—		$	5,263.10
	U.S. Government agencies and authorities	—				636.9				7.2			644.1
	U.S. corporate, state and municipalities	—				38,898.40				568.7			39,467.10
	Foreign(1)	—				16,609.90				130.7			16,740.60
	Residential mortgage-backed securities	—				6,948.30				104.4			7,052.70
	Commercial mortgage-backed securities	—				3,771.20				24.9			3,796.10
	Other asset-backed securities	—				1,797.20				42.2			1,839.40
	Total fixed maturities, including securities pledged	4,677.10				69,247.90				878.1			74,803.10
	Equity securities, available-for-sale	215.1				4.4				57.1			276.6
	Derivatives:
	Interest rate contracts	—				765.2				—			765.2
	Foreign exchange contracts	—				26.6				—			26.6
	Equity contracts	5.5				138.9				73.2			217.6
	Credit contracts	—				29				6.3			35.3
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	3,834.20				270.4				—			4,104.60
	Assets held in separate accounts	102,600.40				5,221.70				17.9			107,840.00
	Total assets	$	111,332.30			$	75,704.10			$	1,032.60		$	188,069.00
	Percentage of Level to total	59.3		%		40.3		%		0.4		%	100		%
	Liabilities:
	Derivatives:
	Annuity product guarantees:
	FIA	$	—			$	—			$	1,808.00		$	1,808.00
	GMAB/GMWB/GMWBL(2)	—				—				1,143.30			1,143.30
	Stabilizer and MCGs	—				—				18			18
	Other derivatives:
	Interest rate contracts	—				867.2				—			867.2
	Foreign exchange contracts	—				31.3				—			31.3
	Equity contracts	58				44.6				—			102.6
	Credit contracts	—				—				12.4			12.4
	Embedded derivative on reinsurance	—				95.9				—			95.9
	Total liabilities	$	58			$	1,039.00			$	2,981.70		$	4,078.70
	(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, 2013:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	4,617.00			$	564.2			$	—		$	5,181.20
	U.S. Government agencies and authorities	—				604.5				14.4			618.9
	U.S. corporate, state and municipalities	—				37,303.20				456.5			37,759.70
	Foreign(1)	—				16,202.20				154.3			16,356.50
	Residential mortgage-backed securities	—				7,025.10				98.6			7,123.70
	Commercial mortgage-backed securities	—				3,752.10				—			3,752.10
	Other asset-backed securities	—				1,867.50				59.2			1,926.70
	Total fixed maturities, including securities pledged	4,617.00				67,318.80				783			72,718.80
	Equity securities, available-for-sale	238.5				20.6				55.3			314.4
	Derivatives:
	Interest rate contracts	—				912				—			912
	Foreign exchange contracts	—				24.1				—			24.1
	Equity contracts	1.9				83.3				87.5			172.7
	Credit contracts	—				33.2				7.3			40.5
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	4,396.90				44.9				—			4,441.80
	Assets held in separate accounts	101,437.50				5,376.50				13.1			106,827.10
	Total assets	$	110,691.80			$	73,813.40			$	946.2		$	185,451.40
	Percentage of Level to total	59.7		%		39.8		%		0.5		%	100		%
	Liabilities:
Derivatives:
Annuity product guarantees:
FIA	$	—			$	—			$	1,736.70		$	1,736.70
GMAB/GMWB/GMWBL	—				—				908.9			908.9
Stabilizer and MCGs	—				—				—			—
Other derivatives:
Interest rate contracts	—				1,239.50				—			1,239.50
Foreign exchange contracts	—				44.9				—			44.9
Equity contracts	20.9				32				—			52.9
Credit contracts	—				—				14.5			14.5
Embedded derivative on reinsurance	—				79				—			79
Total liabilities	$	20.9			$	1,395.40			$	2,660.10		$	4,076.40
(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.
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, 2014 and 2013. 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, 2014:
	Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value			Change In
	as of				Realized/Unrealized																			into		out of			as of			Unrealized
	1-Jan				Gains (Losses)																			Level 3(2)		Level 3(2)			31-Mar			Gains
					Included in:																											(Losses)
																																Included in
					Net				OCI																							Earnings(3)
					Income
Fixed maturities, including securities pledged:
U.S. Government agencies and authorities	$	14.4			$	—			$	—		$	—		$	—		$	—		$	(0.2	)	$	—	$	(7.0	)	$	7.2		$	—
U.S. corporate, state and municipalities	456.5				—				4.5			108			—			—			(10.1		)	12.8		(3.0		)	568.7			—
Foreign	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(1)	(1,736.7		)		(42.4		)		—			—			(50.3		)	—			21.4			—		—			(1,808.0		)	—
GMAB/GMWB/GMWBL(1)	(908.9		)		(195.9		)		—			—			(38.6		)	—			0.1			—		—			(1,143.3		)	—
Stabilizer and MCGs(1)	—				(16.8		)		—			(1.2		)	—			—			—			—		—			(18.0		)	—
Other derivatives, net	80.3				1				—			7.4			—			—			(21.6		)	—		—			67.1			(12.7		)
Assets held in separate accounts(4)	13.1				—				—			5.8			—			(1.0		)	—			—		—			17.9			—
(1) 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.
(2) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
(3) 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.
(4) 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 result in a net zero impact on net income 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, 2013:
	Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value			Change In
	as of				Realized/Unrealized																			into		out of			as of			Unrealized
	1-Jan				Gains (Losses)																			Level 3(2)		Level 3(2)			31-Mar			Gains
					Included in:																											(Losses)
																																Included in
					Net				OCI																							Earnings(3)
					Income
Fixed maturities, including securities pledged:
U.S. Government agencies and authorities	$	—			$	—			$	—		$	—		$	—		$	—		$	—		$	—	$	—		$	—		$	—
U.S. corporate, state and municipalities	524.2				(0.1		)		2.2			50.1			—			—			(13.5		)	58.5		(64.6		)	556.8			(0.1		)
Foreign	104.2				—				4.8			—			—			—			(1.7		)	—		—			107.3			—
Residential mortgage-backed securities	74.1				(1.8		)		—			16			—			—			(0.2		)	0.2		—			88.3			(1.8		)
Commercial mortgage-backed securities	—				—				—			—			—			—			—			—		—			—			—
Other asset-backed securities	115.2				5.9				(0.7		)	—			—			—			(19.5		)	0.3		(0.3		)	100.9			3.7
Total fixed maturities including securities pledged	817.7				4				6.3			66.1			—			—			(34.9		)	59		(64.9		)	853.3			1.8
Equity securities, available-for-sale	55.8				(0.3		)		1.8			2			—			(1.9		)	—			51.8		(49.8		)	59.4			—
Derivatives:
Product guarantees:
FIA(1)	(1,434.3		)		(123.7		)		—			—			(15.1		)	—			11.4			—		—			(1,561.7		)	—
GMAB/GMWB/GMWBL(1)	(2,035.4		)		444.5				—			—			(37.8		)	—			0.1			—		—			(1,628.6		)	—
Stabilizer and MCGs(1)	(102.0		)		25.5				—			(1.5		)	—			—			—			—		—			(78.0		)	—
Other derivatives, net	22.9				44.7				—			6.3			—			—			(8.4		)	—		—			65.5			37.6
Assets held in separate accounts(4)	16.3				—				—			0.2			—			(6.6		)	—			2.2		(9.9		)	2.2			—
(1) 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.
(2) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
(3) 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.
(4) 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 result in a net zero impact on net income for the Company.
For the three months ended March 31, 2014 and 2013, the transfers in and out of Level 3 for fixed maturities and separate accounts, as well as equity securities for the three months ended March 31, 2013, 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.
Significant unobservable inputs used in the fair value measurements of FIAs include nonperformance risk and lapses. 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, 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		50% to 98%			50% to 98%			—			—
Equity and Fixed Income Funds		-38% to 62%			-38% to 62%			—			—
Interest Rates and Equity Funds		-31% to -14%			-31% to -14%			—			—
Nonperformance risk		-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%
Actuarial Assumptions:
Benefit Utilization		85% to 100%		(2)	—			—			—
Partial Withdrawals		0% to 10%			0% to 10%			—			—
Lapses		0.08% to 40%		(3)	0.08% to 31%		(3)	0% to 10%		(3)	0% to 55%	(4)
Policyholder Deposits(5)		—			—			—			0% to 60%	(4)
Mortality		—		(6)	—		(6)	—			—
(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, 31% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, we assume 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, 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			$	1			$	3.4		5.4
60-69		5.6				1.9				7.5			1.2
70+		4.4				1.1				5.5			0
		$	12.4			$	4			$	16.4		2.2
-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. 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, 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%		$	6.2		0.08% to 5.5%
	Out of the Money		—			*	0.41% to 12%		2.5			0.36% to 11%
After Surrender Charge Period
	In the Money**		$	—		*	2.5% to 21%		$	6.2		1.5% to 21%
	Out of the Money		0.1				12% to 31%		2.2			6.9% to 40%
* 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."
(4)	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	%		0-30%		0-15%		0-55%		0-15%
Stabilizer with Recordkeeping Agreements	12	%		0-55%		0-25%		0-60%		0-30%
Aggregate of all plans	100	%		0-55%		0-25%		0-60%		0-30%
(5)	Measured as a percentage of assets under management or assets under administration.
(6)	The mortality rate is based on the Annuity 2000 Basic table with mortality improvements.
The following table presents the unobservable inputs for Level 3 fair value measurements as of December 31, 2013:
		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 8.0%
Correlations between:
Equity Funds		50% to 98%			50% to 98%			—			—
Equity and Fixed Income Funds		-33% to 62%			-33% to 62%			—			—
Interest Rates and Equity Funds		-30% to -14%			-30% to -14%			—			—
Nonperformance risk		-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%
Actuarial Assumptions:
Benefit Utilization		85% to 100%		(2)	—			—			—
Partial Withdrawals		0% to 10%			0% to 10%			—			—
Lapses		0.08% to 40%		(3)	0.08% to 31%		(3)	0% to 10%		(3)	0% to 55%	(4)
Policyholder Deposits(5)		—			—			—			0% to 60%	(4)
Mortality		—		(6)	—		(6)	—			—
(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, 30% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, we assume 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, 2013 (account value amounts are in $ billions).
		Account Values
Attained Age Group		In the Money				Out of the Money				Total			Average Expected Delay (Years)
< 60		$	2.1			$	1.4			$	3.5		5.4
60-69		5.1				2.6				7.7			1.4
70+		4				1.3				5.3			0	*
		$	11.2			$	5.3			$	16.5		2.3
* Less than 0.1
-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. 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, 2013 (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%		$	5.7		0.08% to 5.5%
	Out of the Money		—			*	0.41% to 12%		3.3			0.36% to 11%
After Surrender Charge Period
	In the Money**		$	—		*	2.5% to 21%		$	5.6		1.5% to 21%
	Out of the Money		0.1				12% to 31%		2.8			6.9% to 40%
* 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."
(4)	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	%		0-30%		0-15%		0-55%		0-15%
Stabilizer with Recordkeeping Agreements	12	%		0-55%		0-25%		0-60%		0-30%
Aggregate of all plans	100	%		0-55%		0-25%		0-60%		0-30%
(5)	Measured as a percentage of assets under management or assets under administration.
(6)	The mortality rate is based on the Annuity 2000 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, 2014								December 31, 2013
	Carrying				Fair				Carrying			Fair
	Value				Value				Value			Value
Assets:
Fixed maturities, including securities pledged	$	74,803.10			$	74,803.10			$	72,718.80		$	72,718.80
Equity securities, available-for-sale	276.6				276.6				314.4			314.4
Mortgage loans on real estate	9,258.10				9,336.90				9,312.20			9,404.70
Policy loans	2,119.70				2,119.70				2,147.00			2,147.00
Limited partnerships/corporations	218.9				218.9				236.4			236.4
Cash, cash equivalents, short-term investments and short-term investments under securities loan agreements	4,104.60				4,104.60				4,441.80			4,441.80
Derivatives	1,044.70				1,044.70				1,149.30			1,149.30
Other investments	124.1				130.6				124.6			131.1
Assets held in separate accounts	107,840.00				107,840.00				106,827.10			106,827.10
Liabilities:
Investment contract liabilities:
Funding agreements without fixed maturities and deferred annuities(1)	49,732.60				54,566.80				49,418.40			53,713.80
Funding agreements with fixed maturities and guaranteed investment contracts	2,332.00				2,310.50				2,692.30			2,663.90
Supplementary contracts, immediate annuities and other	3,542.00				3,799.70				3,383.60			3,567.30
Derivatives:
Annuity product guarantees:
FIA	1,808.00				1,808.00				1,736.70			1,736.70
GMAB/GMWB/GMWBL	1,143.30				1,143.30				908.9			908.9
Stabilizer and MCGs	18				18				—			—
Other derivatives	1,013.50				1,013.50				1,351.80			1,351.80
Long-term debt	3,515.00				3,824.90				3,514.70			3,717.80
Embedded derivatives on reinsurance	95.9				95.9				79			79
(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: Federal Home Loan Bank ("FHLB") stock 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 a fixed maturity 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 a fixed maturity 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, 2014
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 deferred policy acquisition costs ("DAC") and value of business acquired ("VOBA") was as follows for the periods indicated:
		DAC			VOBA			Total
	Balance at 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 at March 31, 2014	$	4,013.10		$	847.7		$	4,860.80
		DAC			VOBA			Total
	Balance at January 1, 2013	$	3,221.60		$	434.7		$	3,656.30
	Deferrals of commissions and expenses	104.5			3.3			107.8
	Amortization:
	Amortization	(174.8		)	(36.6		)	(211.4		)
	Interest accrued(1)	58.4			22.5			80.9
	Net amortization included in Condensed Consolidated Statements of Operations	(116.4		)	(14.1		)	(130.5		)
	Change in unrealized capital gains/losses on available-for-sale securities	262			124			386
	Balance at March 31, 2013	$	3,471.70		$	547.9		$	4,019.60
	(1)Interest accrued at the following rates for DAC: 0.6% to 7.4% during 2014 and 1.7% to 7.4% during 2013. Interest accrued at the following rates for VOBA: 4.1% to 7.5% during 2014 and 3.0% to 7.5% during 2013.

ShareBased_Incentive_Compensat

Share-Based Incentive Compensation Plans	3 Months Ended
	Mar. 31, 2014
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
	The Company provides equity-based compensation awards to its employees principally under the ING U.S., Inc. 2013 Omnibus Employee Incentive Plan (the “Omnibus Plan”), which the Company adopted in connection with the IPO. At inception of the Omnibus Plan, a total of 7,650,000 shares of Company common stock were reserved and available for issuance under the Omnibus Plan. As of March 31, 2014, common stock reserved and available for issuance under the Omnibus Plan was 102,408 shares.
	The Omnibus Plan permits 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”) awards, 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 Plan 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 Plan. Equity-based awards under the Omnibus Plan may carry dividend equivalent rights, pursuant to which notional dividends accumulate on unvested equity awards and are paid, in cash, upon vesting. To date, all awards made under the Omnibus Plan 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, 2014, the Company awarded only RSUs and PSUs under the Omnibus Plan. PSUs awarded in the first quarter of 2014 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 is determined and approved by the Committee. These RSUs and PSUs vest no earlier than one year from the date of the award and no later than four 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 Plan is forfeited, expired, terminated, or otherwise lapses, the shares of Company common stock underlying that award will again become available for issuance under the Omnibus Plan. 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, 2014, there were no stock options issued or outstanding under the Omnibus Plan.
	Deal Incentive Awards: Upon closing of the IPO, RSUs were granted to employees of the Company under the 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 (1) the completion of the Secondary Offering in 2013 and the ending of the related underwriters' lockup period and (2) the March 2014 Offering, 849,555 RSUs vested during the three months ended March 31, 2014 but have not been issued as of March 31, 2014. As of March 31, 2014, an additional 165,642 Deal Incentive Awards RSUs with a grant date fair value of $30.03 will proportionally vest and be recognized as compensation costs upon further sales of Company stock by ING Group.
	ING U.S., Inc. 2013 Omnibus Non-Employee Director Incentive Plan
	The Company offers equity-based awards to ING U.S. Inc. non-employee directors under the ING U.S., Inc. 2013 Omnibus Non-Employee Director Incentive Plan (“2013 Director Plan”), which the Company adopted in connection with the IPO. A total of 88,000 shares of Company common stock were initially reserved and available for issuance under the 2013 Director Plan. The material terms of the 2013 Director Plan are substantially consistent with the material terms of the 2013 Omnibus Plan described above.
	Non-Employee Director Service Grants: In March 2014, the Company granted RSUs to the non-employee directors serving on the Board. These awards vest half on the second anniversary of the grant date, and one-quarter vest on the third and fourth anniversaries 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 service on the Board is terminated.
	ING U.S., Inc. 2014 Employee Phantom Stock Plan
	The Company provides certain of its non-executive employees with cash-settled awards under the ING U.S., Inc. 2014 Employee Phantom Stock Plan (the “Phantom Plan”). Awards made under the Phantom Plan are designed to provide grantees with an economic benefit that is equivalent to an analogous grant under the Omnibus Plan, however the Company must deliver cash, and may not deliver equity, upon vesting of such awards. Awards are granted in the form of phantom RSUs and phantom PSUs, each of which is designed to mirror the value of an equity-settled RSU or PSU awarded under the Omnibus Plan, 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, 2014, the Company had granted 183,874 phantom RSUs and 99,160 phantom PSUs 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”).
	All 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 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 remain outstanding and will continue to vest according to the terms of their original grant. One-third of these awards vest, and the underlying ING Group ADRs are delivered, on each of the first, second and third anniversaries of the award date, provided that the participants are still employed by the Company on the relevant vesting date, and, in the case of performance-based LSPP, provided that the relevant performance conditions have been satisfied, as determined by the Committee and the Supervisory Board of ING Group.
	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 ING America Insurance Holdings, Inc. Equity Compensation Plan (the “Equity Compensation Plan”). Awards made under the Equity Compensation Plan are in the form of restricted ING Group ADRs.
	All 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 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.
	Equity Compensation Plan awards to employees of the Company provided in 2012 remain outstanding and 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, RSUs and stock options 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-based awards, which have a fixed grant-date fair value, the fair value of unsettled liability 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, the ING Group equity awards which 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 will be remeasured at each reporting date until the awards vest. The remeasured cost will be 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 will be recorded as a capital contribution. The corresponding amount for the restricted 2012 ING Group ADRs which were issued under the Equity Compensation Plan will be recorded as a liability. The impact of the remeasurement of the compensation cost of these awards for the three months ended March 31, 2014 was immaterial.
	The following table summarizes pre-tax share-based compensation costs, which includes costs related to awards granted under the Omnibus Plan, Director Plan, Phantom Plan and ING Group share-based compensation plan for the periods indicated:
		Three Months Ended March 31,
		2014				2013
	RSUs(1)	$	7			$	4.8
	RSUs - Deal incentive awards	5.6				—
	PSU awards(1)	19.2				0.9
	Stock options(2)	—				0.8
	Phantom Plan	0.3				—
	Share-based compensation(3)	$	32.1			$	6.5
	(1) This table includes compensation costs of $1.8 and $10.6 with respect to ING Group RSUs and PSU awards, respectively, for the three months ended March 31, 2014. For the three months ended March 31, 2013, all share-based compensation costs are related to the ING Group equity-based compensation plans.
	(2) All compensation costs recognized during the three months ended March 31, 2013 represents the associated portion with ING Group stock options held by the Company's employees.
	(3) The Company recognized no income tax benefit due to recognized valuation allowances for all periods presented. See Note 9. Income Taxes to these Condensed Consolidated Financial Statements for additional information.
	Awards Outstanding
	The following table summarizes the number of awards under the Omnibus Plan for the period indicated:
		RSUs						RSUs - Deal Incentive Awards(1)					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 at December 31, 2013	1.6			$	19.15		0.8			$	19.5	0.5			$	28.06
	Adjustment for PSU performance factor	N/A			N/A			N/A			N/A		0.3			28.06
	Granted	1.8			37.01			—			—		0.7			36.98
	Vested	(0.1	)		19.29			(0.8	)	(2)	19.5		(0.8	)		28.06
	Forfeited	—		*	—			—		*	—		—		*	—
	Outstanding at March 31, 2014	3.3			$	28.66		—			$	—	0.7			$	36.86
	* Less than 0.1.
	(1) Excludes 273,504 RSUs granted in 2013 that proportionally vest upon sales of Company stock by ING Group.
	(2) As of March 31, 2014, these vested shares have not yet been issued.

Shareholders_Equity_and_Earnin

Shareholders' Equity and Earnings Per Common Share	3 Months Ended
	Mar. 31, 2014
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
		2014							2013
	(shares in millions)	Issued			Held in Treasury		Outstanding		Issued	Held in Treasury	Outstanding
	Common shares, balance at January 1	261.8			0.1		261.7		230.1	0.1	230
	Common shares acquired - share buyback	—			7.5		(7.5	)	—	—	—
	Share-based compensation programs	0.8			0.3		0.5		—	—	—
	Common shares, balance at March 31	262.6			7.9		254.7		230.1	0.1	230
	Share Repurchase Program
	On March 13, 2014, the Company's Board of Directors authorized a share repurchase program (the “Share Repurchase Program”), pursuant to which the Company may, from time to time, purchase shares of its common stock for an aggregate repurchase price not to exceed $300.0. Share repurchases may be executed through various means, including, without limitation, open market transactions, privately negotiated transactions or tender offers. The Share Repurchase Program does not have an expiration date and does not obligate the Company to purchase any shares. The authorization for the Share Repurchase Program may be terminated, increased or decreased by the Company’s Board of Directors at any time.
	On March 25, 2014, the Company repurchased 7,255,853 shares of its common stock from ING Group for an aggregate purchase price of $250.0. This repurchase reduced the remaining authorization under the Share Repurchase Program to $50.0. As of March 31, 2014, the Company had subsequently repurchased an additional 250,000 shares of its common stock in open market transactions for an aggregate purchase price of $8.9, which settled on April 2, 2014.
	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, 2014, the Company increased its treasury stock by 306,408 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 warrants have an exercise price of $48.75 per share of common stock, are exercisable from May 7, 2014 to May 7, 2023 and are subject to certain exercise restrictions. The warrants are net share settled 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 $94.0 as an addition and reduction to Additional-paid-in-capital. Warrant holders are not entitled to receive dividends.
	The following table presents a reconciliation of net income (loss) and shares used in calculating basic and diluted net income (loss) per common share for the periods indicated:
	($ in millions, except for share and per share data)		Three Months Ended March 31,
	Earnings		2014			2013
	Net income (loss) available to common shareholders:
	Net income (loss)		$	271.6		$	(225.5	)
	Less: Net income (loss) attributable to noncontrolling interest		13.5			(13.5		)
	Net income (loss) available to common shareholders		$	258.1		$	(212.0	)
	Weighted-average common shares outstanding
	Basic		261.1			230
	Dilutive Effects:
	RSUs		1			—
	RSUs - Deal incentive awards		0.8			—
	PSU awards		0.6			—
	Diluted		263.5			230
	Net income (loss) per common share
	Basic		$	0.99		$	(0.92	)
	Diluted		0.98			(0.92		)
	Dividends to Common Shareholders
	The declaration and payment of Common Stock 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 Debt Securities-Junior Subordinated Notes Section within Management's Discussion and Analysis of Results of Operations and Financial Condition-Liquidity and Capital Resources to these Condensed Consolidated Financial Statements, on the payment of dividends by the Company.
	On February 6, 2014, 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, 2014 to shareholders of record of Voya Financial, Inc. as of February 28, 2014.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
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,
		2014				2013
	Fixed maturities, net of OTTI	$	4,759.70			$	7,067.20
	Equity securities, available-for-sale	31.8				35.8
	Derivatives	158				201.5
	DAC/VOBA adjustment on available-for-sale securities	(1,514.7		)		(2,397.6		)
	Sales inducements adjustment on available-for-sale securities	(74.8		)		(119.0		)
	Other	(28.0		)		(28.8		)
	Unrealized capital gains (losses), before tax	3,332.00				4,759.10
	Deferred income tax asset (liability)	(802.7		)		(1,363.4		)
	Net unrealized capital gains (losses)	2,529.30				3,395.70
	Pension and other postretirement benefits liability, net of tax	48.2				57.1
	AOCI	$	2,577.50			$	3,452.80
	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, 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 Statements 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 Statements 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 Statements 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 Note 5. Deferred Policy Acquisition Costs and Value of Business Acquired to these Condensed Consolidated Financial Statements for additional information.
	(2) See Note 3. Derivative Financial Instruments to these Condensed Consolidated Financial Statements for additional information.
		Three Months Ended March 31, 2013
		Before-Tax Amount				Income Tax			After-Tax Amount
	Available-for-sale securities:
	Fixed maturities	$	(792.1	)		$	274.4		$	(517.7	)
	Equity securities	(6.3		)		2.2			(4.1		)
	Other	11.6				(4.1		)	7.5
	OTTI	10.9				(3.8		)	7.1
	Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	(14.6		)		5.1			(9.5		)
	DAC/VOBA	386			(1)	(135.1		)	250.9
	Sales inducements	28.4				(9.9		)	18.5
	Change in unrealized gains/losses on available-for-sale securities	(376.1		)		128.8			(247.3		)
	Derivatives:
	Derivatives	(12.7		)	(2)	4.5			(8.2		)
	Adjustments related to effective cash flow hedges for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	(0.2		)		0.1			(0.1		)
	Change in unrealized gains/losses on derivatives	(12.9		)		4.6			(8.3		)
	Pension and other postretirement benefits liability:
	Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statements of Operations	(3.5		)		1.2			(2.3		)
	Change in pension and other postretirement benefits liability	(3.5		)		1.2			(2.3		)
	Change in Other comprehensive income (loss)	$	(392.5	)		$	134.6		$	(257.9	)
	(1) See Note 5. Deferred Policy Acquisition Costs and Value of Business Acquired to these Condensed Consolidated Financial Statements for additional information.
	(2) See Note 3. Derivative Financial Instruments to these Condensed Consolidated Financial Statements for additional information.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2014
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:
		Three Months Ended March 31,
		2014			2013
	Income (loss) before income taxes	$	302.3		$	(214.3	)
	Tax rate	35		%	35		%
	Income tax expense (benefit) at federal statutory rate	105.8			(75.0		)
	Tax effect of:
	Valuation allowance	(53.0		)	104.2
	Dividend received deduction	(25.8		)	(21.9		)
	Audit settlement	(1.1		)	(2.1		)
	State tax expense (benefit)	6.5			4.1
	Noncontrolling interest	(4.7		)	4.7
	Tax credits	—			(4.6		)
	Non-deductible expenses	0.4			4.3
	Other	2.6			(2.5		)
	Income tax expense (benefit)	$	30.7		$	11.2
	Valuation allowances are provided when it is considered unlikely that deferred tax assets will be realized. As of March 31, 2014 and December 31, 2013 the Company had total valuation allowances of approximately $2.8 billion. As of March 31, 2014 and December 31, 2013, $3.1 billion and $3.2 billion, respectively, of these valuation allowances were allocated to continuing operations, and $(354.1) as of the end of each period were allocated to Other comprehensive income related to realized and unrealized capital losses.
	For the three months ended March 31, 2014 and 2013, the total increases (decreases) in the valuation allowance were $(53.0) and $104.2, respectively, which were allocated to continuing operations. There were no changes in the valuation allowance allocated to Other comprehensive income for the three months ended March 31, 2014 and 2013.
	Tax Regulatory Matters
	During April 2014, the IRS completed its examination of the Company's returns through tax year 2012. The 2012 audit settlement did not have a material impact on the financial statements. The Company is currently under audit by the IRS, and it is expected that the examination of tax year 2013 will be finalized within the next twelve months. The Company and the IRS have agreed to participate in the Compliance Assurance Program for the tax years 2013 and 2014.
	The Company does not expect any material changes to the unrecognized tax benefits within the next year.

Financing_Agreements

Financing Agreements	3 Months Ended
	Mar. 31, 2014
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, 2014 and December 31, 2013.
	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, 2014 and December 31, 2013:
		Maturity	March 31, 2014			December 31, 2013
	7.25% Lion Connecticut Holdings, Inc. debentures due 2023(1)	8/15/23	$	158.7		$	158.6
	7.63% Lion Connecticut Holdings, Inc. debentures due 2026(1)	8/15/26	232.2			232.1
	8.42% Equitable of Iowa Companies Capital Trust II notes due 2027	4/1/27	13.8			13.8
	6.97% Lion Connecticut 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	998.6			998.5
	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		3,515.00			3,514.70
	Less: Current portion of long-term debt		—			—
	Total		$	3,515.00		$	3,514.70
	(1) Guaranteed by ING Group.
	As of March 31, 2014 and December 31, 2013, the Company was in compliance with all 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.
	Aetna Notes
	ING Group guarantees various debentures of Lion Holdings that were assumed by Lion 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 (other than the Company or its subsidiaries).
	If the Company fails to reduce the outstanding principal amount of the Aetna Notes, the Company 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, 2014, the outstanding principal amount of the Aetna Notes guaranteed by ING Group was $506.1.
	Credit Facilities
	The following table outlines the Company's credit facilities, their dates of expiration, capacity and utilization as of March 31, 2014:
		Secured/ Unsecured	Committed/ Uncommitted		Expiration	Capacity		Utilization		Unused Commitment
	Obligor / Applicant
	Voya Financial, Inc.	Unsecured	Committed		2/14/18	$	3,000.00	$	829.9	$	2,170.10
	Security Life of Denver International Limited	Unsecured	Committed		1/24/18	150		147		3
	Voya Financial, Inc./ Langhorne I, LLC	Unsecured	Committed		1/15/19	500		—		500
	Voya Financial, Inc./ Security Life of Denver International Limited	Unsecured	Committed		11/9/21	750		750		—
	Security Life of Denver International Limited	Unsecured	Committed		10/29/20	1,125.00		631.6		493.4
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/27/22	750		750		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/29/23	250		250		—
	ReliaStar Life Insurance Company	Secured	Committed		Conditional	255		255		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/31/25	475		475		—
	Voya Financial, Inc.	Unsecured	Uncommitted		Various	1.7		1.7		—
	Voya Financial, Inc.	Secured	Uncommitted		Various	10		4.7		—
	Voya Financial, Inc. / Roaring River II LLC	Unsecured	Committed		12/31/21	995		588		407
	Voya Financial, Inc. / Roaring River III LLC	Unsecured	Committed		6/30/22	1,151.20		630		521.2
	Voya Financial, Inc./ Roaring River IV LLC	Unsecured	Committed		12/31/28	565		287		278
	Total					$	9,977.90	$	5,599.90	$	4,372.70
	Secured facilities					265		259.7		—
	Unsecured and uncommitted					1.7		1.7		—
	Unsecured and committed					9,711.20		5,338.50		4,372.70
	Total					$	9,977.90	$	5,599.90	$	4,372.70
	ING Bank					$	1,275.00	$	673.1	$	601.9
	The Company maintains credit facilities used primarily for collateral required under affiliated reinsurance transactions and also for general corporate purposes. Total fees associated with credit facilities for the three months ended March 31, 2014 and 2013 were $29.3 and $45.4, respectively.
	Effective January 1, 2014, the reinsurance agreements with Whisperingwind III, LLC ("Whisperingwind III") were novated to Roaring River IV, LLC ("Roaring River IV"), a wholly owned reinsurance subsidiary of the Company, which completed a transaction with a third-party bank to provide up to $565.0 of statutory reserve financing through a trust note which matures December 31, 2028.
	Effective January 15, 2014, Langhorne I, LLC ("Langhorne I"), a wholly owned reinsurance subsidiary of the Company, completed a financing arrangement with a third-party trust to provide up to $500.0 of trust note collateral funding. The financing arrangement is designed to manage reserve and capital requirements in connection with the stable value business and matures on January 15, 2019.
	Effective January 24, 2014, Security Life of Denver International Limited ("SLDI") entered into a letter of credit facility agreement with a third-party bank providing 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.
	Senior Unsecured Credit Facility
	On February 14, 2014, the Company revised the terms of its Revolving Credit Agreement ("Revolving Credit Agreement") by entering into the Amended and Restated Revolving Credit Agreement ("Amended and Restated Credit Agreement") with a syndicate of banks. The Amended and Restated Credit Agreement modifies the original agreement by: 1) extending the term of the agreement to February 14, 2018; 2) reducing the total amount of LOCs that may be issued from $3.5 billion to $3.0 billion and 3) reducing the current cost of LOC issuance fees from 200 bps to 175 bps. The revolving credit sublimit of $750.0 present in the original agreement remains unchanged. ING Bank, N.V. ("ING Bank"), an affiliate, acted as Joint Lead Arranger, Joint Book Manager and Documentation Agent and received $0.7 for its services and participation in the syndicate.
	As of March 31, 2014, there were no amounts outstanding as revolving credit borrowings and $829.9 in letters of credit outstanding.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
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, 2014, the Company had off-balance sheet commitments to purchase investments equal to their fair value of $1.1 billion, of which $323.2 relates to consolidated investment entities. As of December 31, 2013, the Company had off-balance sheet commitments to purchase investments equal to their fair value of $1.2 billion, of which $321.3 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 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 $26.9 and $19.2 as of March 31, 2014 and December 31, 2013, respectively. The Company has also recorded an asset in Other assets on the Condensed Consolidated Balance Sheets of $26.5 and $18.4 as of March 31, 2014 and December 31, 2013, respectively, 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, 2014		December 31, 2013
	Fixed maturity collateral pledged to FHLB	$	2,365.60	$	2,333.40
	FHLB restricted stock(1)	99		99.1
	Other fixed maturities-state deposits	257.5		251
	Securities pledged(2)	1,271.30		1,465.70
	Total restricted assets	$	3,993.40	$	4,149.20
	(1) Included in Other investments in the Condensed Consolidated Balance Sheets.
	(2) Includes the fair value of loaned securities of $449.4 and $435.4 as of March 31, 2014 and December 31, 2013, respectively, which is included in Securities pledged on the Condensed Consolidated Balance Sheets. In addition, as of March 31, 2014 and December 31, 2013, the Company delivered securities as collateral of $821.9 and $1.0 billion, respectively, which was included in Securities pledged in 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, 2014 and December 31, 2013, the Company had $1.8 billion in non-putable funding agreements, which are included in Contract owner account balances on the Condensed Consolidated Balance Sheets. As of March 31, 2014 and December 31, 2013, the Company had $255.0 and $265.0 in LOCs issued by the FHLBs, respectively. As of March 31, 2014 and December 31, 2013, assets with a market value of approximately $2.1 billion and $2.0 billion, respectively, collateralized the FHLB funding agreements. As of March 31, 2014 and December 31, 2013, assets with a market value of approximately $301.2 and $294.1, respectively, collateralized the FHLB LOCs. Assets pledged to the FHLBs are included in Fixed maturities, available-for-sale, on the Condensed Consolidated Balance Sheets.
	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, 2014, 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 against the Company includes a case styled Healthcare Strategies, Inc., Plan Administrator of the Healthcare Strategies Inc. 401(k) Plan v. ING Life Insurance and Annuity Company (U.S.D.C. D. CT, filed February 22, 2011), in which sponsors of 401(k) plans governed by the Employee Retirement Income Security Act ("ERISA") claim that ILIAC has entered into revenue sharing agreements with mutual funds and others in violation of the prohibited transaction rules of ERISA. Among other things, the plaintiffs seek disgorgement of all revenue sharing payments and profits earned in connection with such payments, an injunction barring the practice of revenue sharing, and attorney fees. On September 26, 2012, the district court certified the case as a class action in which the named plaintiffs represent approximately 15,000 similarly situated plan sponsors. On April 11, 2014, the parties submitted to the court a motion for preliminary approval of a class-wide settlement agreement under which ILIAC, without admitting liability, would make a payment to the class of approximately $15.0 and adopt certain changes in its disclosure practices. Final court approval will be required before the settlement becomes effective.

Related_Party_Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	In the normal course of business, the Company enters into various transactions with affiliated companies. 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.
	The following tables summarize income and expense from transactions with related parties for the periods indicated:
		Three Months Ended March 31,
		2014					2013
		Income			Expense		Income			Expense
	NN Group(1)	$	0.6		$	0.1	$	0.4		$	3.3
	ING Group	5.6			3.5		4.2			5
	ING Bank(1)	(0.5		)	6.6		(0.4		)	18.4
	Other	5.3			3.4		3.6			3.7
	Total	$	11		$	13.6	$	7.8		$	30.4
	(1) See "Derivatives" section below.
	Assets and liabilities from transactions with related parties as of the dates indicated are shown in the following table:
		March 31, 2014					December 31, 2013
		Assets			Liabilities		Assets			Liabilities
	NN Group	$	0.5		$	0.1	$	0.5		$	0.2
	ING Group	9			0.9		1.3			0.9
	ING Bank	11.1			3.2		13.8			5.8
	Other	2.4			1.6		2.6			2
	Total	$	23		$	5.8	$	18.2		$	8.9
	The material agreements whereby the Company generates revenues and expenses with affiliated entities are as follows:
	Credit Facilities
	The Company is a borrower in several credit facility agreements with ING Bank, in which ING Bank provides LOC capacity. The Company had accrued payables of $3.1 and $4.9 as of March 31, 2014 and December 31, 2013, respectively. The Company incurred expenses of $3.7 and $17.7 for the three months ended March 31, 2014 and 2013, respectively.
	The Company provided a $15.0 LOC for a captive reinsurance subsidiary which was issued by ING Bank and was scheduled to expire in 2026. NN Group N.V. (“NN Group”), a wholly owned subsidiary of ING Group, was the guarantor of the LOC and indemnified ING Bank up to $15.0. On January 14, 2014, the LOC was cancelled and the corresponding guarantee obligation of NN Group was extinguished.
	Derivatives
	The Company is party to several derivative contracts with NN Group and ING Bank and one or more of ING Bank's subsidiaries. Each of these contracts were entered into as a result of a competitive bid, which included unaffiliated counterparties. 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.
	As of March 31, 2014 and December 31, 2013, the outstanding notional amounts were $462.9 (consisting of interest rate swaps of $214.3 and equity options of $248.6) and $518.9 (consisting of interest rate swaps of $328.8 and equity options of $190.1), respectively. As of March 31, 2014 and December 31, 2013, the market values for these contracts were $9.2 and $10.5, respectively. For the three months ended March 31, 2014 and 2013, the Company recorded net realized capital gains (losses) of $(0.7) and $(1.4), 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, 2014 and December 31, 2013, the maximum potential future exposure to the Company on credit default swaps supported by the NN Group guarantee was $39.8 and $43.5, respectively.

Consolidated_Investment_Entiti

Consolidated Investment Entities	3 Months Ended
	Mar. 31, 2014
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 $656.2 and $654.0 as of March 31, 2014 and December 31, 2013, 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, 2014 and December 31, 2013, the Company consolidated 13 CLOs and 12 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, 2014 and December 31, 2013, the Company consolidated 35 funds, 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, 2014			December 31, 2013
	Assets of Consolidated Investment Entities
	VIEs - CLO entities:
	Cash and cash equivalents	$	498.6		$	642.5
	Corporate loans, at fair value using the fair value option	5,490.70			4,965.30
	Other assets	84.7			83.1
	Total CLO entities	6,074.00			5,690.90
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	71.4			68.2
	Limited partnerships/corporations, at fair value	3,382.40			3,218.60
	Other assets	23.7			21.7
	Total investment funds	3,477.50			3,308.50
	Total assets of consolidated investment entities	$	9,551.50		$	8,999.40
	Liabilities of Consolidated Investment Entities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	5,525.50		$	5,161.60
	Other liabilities	489.4			468
	Total CLO entities	6,014.90			5,629.60
	VOEs - Private equity funds and single strategy hedge funds:
	Other liabilities	478.1			435.3
	Total investment funds	478.1			435.3
	Total liabilities of consolidated investment entities	$	6,493.00		$	6,064.90
	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 included in the Consolidated Financial Statements in the 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 2014 and 2022, paying interest at LIBOR or PRIME plus a spread of up to 9.8% and typically range in credit rating categories from AAA down to unrated. As of March 31, 2014 and December 31, 2013, the unpaid principal balance exceeded the fair value of the corporate loans by approximately $8.7 and $9.7, respectively. Less than 1% of the collateral assets were in default as of March 31, 2014 and December 31, 2013.
	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 $141.0 and $139.6 as of March 31, 2014 and December 31, 2013, 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, 2014
	Assets:
	CLO Investments		$	25		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
	Liabilities:
	CLO Notes		$	5,525.50		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
			Fair Value			Valuation Technique		Unobservable Inputs
December 31, 2013
Assets:
CLO Investments		$	25.5		Discounted Cash Flow		Default Rate
							Recovery Rate
							Prepayment Rate
							Discount Margin
Liabilities:
CLO Notes		$	5,161.60		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; however, if an increase in the expected default rates does not have a subsequent change in the discount margin used to value the CLO investments and CLO notes, then an increase in default rate would potentially increase the value of the CLO investments and CLO notes as the expected weighted average life ("WAL") of the CLO investments and CLO notes would decrease.
•	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 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.
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, 2014 and December 31, 2013, certain private equity funds maintained revolving lines of credit of $400.0, which renew annually and bear interest at LIBOR/EURIBOR plus 235-250 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 350% asset coverage from the invested assets of the funds. As of March 31, 2014 and December 31, 2013, outstanding borrowings amount to $212.2. 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, 2014 and December 31, 2013, 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 all 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, 2014 and December 31, 2013, this Fund sold securities under an agreement to repurchase at a specified future date. Securities sold under an agreement to repurchase are not derecognized 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, 2014 and December 31, 2013, outstanding financings amount to $176.0 and $147.5, respectively.
The following table summarizes the fair value hierarchy levels of consolidated investment entities as of March 31, 2014:
	Level 1			Level 2				Level 3		Fair Value Measurements
Assets
VIEs - CLO entities:
Cash and cash equivalents	$	498.6		$	—			$	—	$	498.6
Corporate loans, at fair value using the fair value option	—			5,465.70				25		5,490.70
VOEs - Private equity funds and single strategy hedge funds:
Cash and cash equivalents	71.4			—				—		71.4
Limited partnerships/corporations, at fair value	—			629.9				2,752.50		3,382.40
Total assets, at fair value	$	570		$	6,095.60			$	2,777.50	$	9,443.10
Liabilities
VIEs - CLO entities:
CLO notes, at fair value using the fair value option	$	—		$	—			$	5,525.50	$	5,525.50
Total liabilities, at fair value	$	—		$	—			$	5,525.50	$	5,525.50
The following table summarizes the fair value hierarchy levels of consolidated investment entities as of December 31, 2013:
	Level 1			Level 2				Level 3		Fair Value Measurements
Assets
VIEs - CLO entities:
Cash and cash equivalents	$	642.5		$	—			$	—	$	642.5
Corporate loans, at fair value using the fair value option	—			4,939.80				25.5		4,965.30
VOEs - Private equity funds and single strategy hedge funds:
Cash and cash equivalents	68.2			—				—		68.2
Limited partnerships/corporations, at fair value	—			484.5				2,734.10		3,218.60
Total assets, at fair value	$	710.7		$	5,424.30			$	2,759.60	$	8,894.60
Liabilities
VIEs - CLO entities:
CLO notes, at fair value using the fair value option	$	—		$	—			$	5,161.60	$	5,161.60
Total liabilities, at fair value	$	—		$	—			$	5,161.60	$	5,161.60
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, 2014, $13.9 of investments held in a single strategy hedge fund 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. For the three months ended March 31, 2013 there were no transfers in or out of Level 3, or 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, 2014 is presented in the table below:
	Fair Value			Gains (Losses)				Purchases		Sales			Transfer in to Level 3		Transfer out of Level 3		Fair Value
	as of January 1			Included in the Condensed Consolidated													as of March 31
				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
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, 2013 is presented in the table below:
	Fair Value			Gains (Losses)				Purchases		Sales			Transfer in to Level 3		Transfer out of Level 3		Fair Value
	as of January 1			Included in the Condensed Consolidated													as of March 31
				Statement of Operations
Assets
VIEs - CLO entities:
Corporate loans, at fair value using the fair value option	$	—		$	—			$	—	$	—		$	—	$	—	$	—
VOEs - Private equity funds and single strategy hedge funds:
Limited partnerships/corporations, at fair value	2,931.20			(15.8		)		65.9		(0.6		)	—		—		2,980.70
Total assets, at fair value	$	2,931.20		$	(15.8	)		$	65.9	$	(0.6	)	$	—	$	—	$	2,980.70
Liabilities
VIEs - CLO entities:
CLO notes, at fair value using the fair value option	$	3,829.40		$	6.7			$	612.9	$	(0.9	)	$	—	$	—	$	4,448.10
Total liabilities, at fair value	$	3,829.40		$	6.7			$	612.9	$	(0.9	)	$	—	$	—	$	4,448.10
Deconsolidation of Certain Investment Entities
During the three months ended March 31, 2014 and 2013, 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 never 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, 2014 and December 31, 2013, the Company does not hold any ownership interests in these unconsolidated CLOs.
The following table presents the carrying amounts of total assets and liabilities of the VIEs in which the Company has 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 VIE and (ii) other commitments and guarantees to the VIE.
	March 31, 2014			December 31, 2013
Carrying amount	$	—		$	—
Maximum exposure to loss	—			—
Assets of nonconsolidated investment entities	1,472.90			1,640.40
Liabilities of nonconsolidated investment entities	1,497.90			1,639.00
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 Note 4. Fair Value Measurements (excluding Consolidated Investment Entities) 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 Note 2. Investments (excluding Consolidated Investment Entities) for details regarding the carrying amounts and classifications of these assets.

Segments

Segments	3 Months Ended
	Mar. 31, 2014
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
	The Company also has a Corporate segment, which includes the financial data not directly related to the businesses and Closed Block segments, which include 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 through two segments: Retirement and Annuities. The Retirement segment provides tax-deferred, employer-sponsored retirement savings plans and administrative services in corporate, education, healthcare and government markets, as well as rollover IRAs and other retail financial products. The Annuities segment primarily provides fixed and indexed annuities, tax-qualified mutual fund custodial products and payout annuities for pre-retirement wealth accumulation and post-retirement income management sold through multiple channels.
	Investment Management
	The Investment Management business provides investment products and retirement solutions through a broad range of traditional and alternative asset classes, geographies and styles, in separate accounts, pooled accounts, annuity portfolios and mutual funds. 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 affiliated U.S. businesses 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, whole life and term products, distributed through independent 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 include the Closed Block Variable Annuity, Closed Block Institutional Spread Products and Closed Block Other, which are in run-off. Closed Block Variable Annuity and Closed Block Institutional Spread Products (which issues guaranteed investment contracts and funding agreements) are no longer being actively marketed and sold, but are managed to protect regulatory and rating agency capital from equity market movements. The Closed Block Other segment mainly consists of the contingent consideration and loss related to the 2010 sale of three of the Company’s broker dealers and the amortization of the deferred gain related to the divestment of Group Reinsurance in 2010 via reinsurance and the Individual Reinsurance segment that was divested in 2004 via reinsurance.
	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. All 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 business exited through reinsurance or divestment;
	•	Income (loss) attributable to noncontrolling interests;
	•	Income (loss) related to early extinguishments 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 post-employment 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 Closed Block Variable Annuity 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 Closed Block Variable Annuity 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,
		2014			2013
	Retirement Solutions:
	Retirement	$	114.9		$	137.8
	Annuities	54.8			54.3
	Investment Management	49.8			30.1
	Insurance Solutions:
	Individual Life	31.1			50.8
	Employee Benefits	16.9			12.4
	Total Ongoing Businesses	267.5			285.4
	Corporate	(37.3		)	(50.1		)
	Closed Blocks:
	Closed Block Institutional Spread Products	5.4			22.1
	Closed Block Other	(4.5		)	(0.7		)
	Closed Blocks	0.9			21.4
	Total operating earnings before income taxes	231.1			256.7
	Adjustments:
	Closed Block Variable Annuity	20.2			(477.1		)
	Net investment gains (losses) and related charges and adjustments	57.6			41.8
	Net guaranteed benefit hedging gains (losses) and related charges and adjustments	6.4			3.1
	Loss related to businesses exited through reinsurance or divestment	(10.5		)	(16.9		)
	Income (loss) attributable to noncontrolling interests	13.5			(13.5		)
	Other adjustments to operating income	(16.0		)	(8.4		)
	Income (loss) before income taxes	$	302.3		$	(214.3	)
	Operating revenues is a measure of the Company's segment revenues. The Company calculates operating revenues by adjusting each segment's revenues for 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. All 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;
	•	Revenues attributable to noncontrolling interests; 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 Closed Block Variable Annuity 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 Closed Block Variable Annuity segment.
The summary below reconciles operating revenues for the segments to Total revenues for the periods indicated:
	Three Months Ended March 31,
	2014			2013
Retirement Solutions:
Retirement	$	598.5		$	583.2
Annuities	354.4			307.6
Investment Management	160.5			131.9
Insurance Solutions:
Individual Life	692.2			687.1
Employee Benefits	338.9			318.1
Total Ongoing Businesses	2,144.50			2,027.90
Corporate	25.3			17.1
Closed Blocks:
Closed Block Institutional Spread Products	17.6			38.3
Closed Block Other	8			7.2
Closed Blocks	25.6			45.5
Total operating revenues	2,195.40			2,090.50
Adjustments:
Closed Block Variable Annuity	284.6			(444.0		)
Net realized investment gains (losses) and related charges and adjustments	49.6			30.4
Gain (loss) on change in fair value of derivatives related to guaranteed benefits	(23.9		)	20.6
Revenues related to businesses exited through reinsurance or divestment	19			(12.1		)
Revenues (loss) attributable to noncontrolling interests	60.8			40.3
Other adjustments to operating revenues	85.4			92.9
Total revenues	$	2,670.90		$	1,818.60
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,
	2014			2013
Investment management intersegment revenues	$	39.3		$	39.3
The summary below presents Total assets for the Company’s segments as of the dates indicated:
	March 31, 2014			December 31, 2013
Retirement Solutions:
Retirement	$	94,654.80		$	92,336.70
Annuities	26,748.30			26,528.30
Investment Management	391.9			463.3
Insurance Solutions:
Individual Life	25,920.80			25,592.20
Employee Benefits	2,559.70			2,518.50
Total Ongoing Businesses	150,275.50			147,439.00
Corporate	4,566.80			4,802.80
Closed Blocks:
Closed Block Variable Annuity	49,451.60			49,483.50
Closed Block Institutional Spread Products	2,711.30			3,390.10
Closed Block Other	7,634.50			7,586.50
Closed Blocks	59,797.40			60,460.10
Total assets of segments	214,639.70			212,701.90
Noncontrolling interest	8,871.00			8,321.30
Total assets	$	223,510.70		$	221,023.20

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	3 Months Ended
	Mar. 31, 2014
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"), Lion Holdings ("Subsidiary Guarantor") and all other subsidiaries ("Non-Guarantor Subsidiaries") of the Company at March 31, 2014 and December 31, 2013, their results of operations and comprehensive income for the three months ended March 31, 2014 and 2013 and their statements of cash flows for the three months ended March 31, 2014 and 2013.
	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") are fully and unconditionally guaranteed by Lion Holdings, a 100% owned subsidiary of the Company. No other subsidiary of Voya Financial, Inc. guarantees the Senior 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 all amounts due and payable. In the event that Lion Holdings does not fulfill the guaranteed obligations, any holder of the Senior Notes may immediately bring a claim against Lion Holdings for all amounts due and payable. See Note 12. Insurance Subsidiaries in the Company's Annual Report on Form 10-K for the year ended December 31, 2013 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, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Assets:
	Investments:
	Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	70,465.10		$	(15.4	)	$	70,449.70
	Fixed maturities, at fair value using the fair value option	—			—			3,082.10			—			3,082.10
	Equity securities, available-for-sale, at fair value	80.9			4.4			191.3			—			276.6
	Short-term investments	21			—			1,025.20			—			1,046.20
	Mortgage loans on real estate, net of valuation allowance	—			—			9,258.10			—			9,258.10
	Policy loans	—			—			2,119.70			—			2,119.70
	Limited partnerships/corporations	—			—			218.9			—			218.9
	Derivatives	66.9			—			1,155.10			(177.3		)	1,044.70
	Investments in subsidiaries	16,071.50			13,215.80			—			(29,287.3		)	—
	Other investments	—			0.2			123.9			—			124.1
	Securities pledged	—			—			1,271.30			—			1,271.30
	Total investments	16,240.30			13,220.40			88,910.70			(29,480.0		)	88,891.40
	Cash and cash equivalents	441.5			1.5			2,056.80			—			2,499.80
	Short-term investments under securities loan agreements, including collateral delivered	30.7			—			548			(20.1		)	558.6
	Accrued investment income	—			—			935.6			—			935.6
	Reinsurance recoverable	—			—			6,785.80			—			6,785.80
	Deferred policy acquisition costs and Value of business acquired	—			—			4,860.80			—			4,860.80
	Sales inducements to contract holders	—			—			258.6			—			258.6
	Goodwill and other intangible assets	—			—			312.5			—			312.5
	Loans to subsidiaries and affiliates	370			0.1			180.6			(550.7		)	—
	Due from subsidiaries and affiliates	15.5			1			15.1			(31.6		)	—
	Other assets	57.4			—			959.4			(0.7		)	1,016.10
	Assets related to consolidated investment entities:
	Limited partnerships/corporations, at fair value	—			—			3,382.40			—			3,382.40
	Cash and cash equivalents	—			—			570			—			570
	Corporate loans, at fair value using the fair value option	—			—			5,490.70			—			5,490.70
	Other assets	—			—			108.4			—			108.4
	Assets held in separate accounts	—			—			107,840.00			—			107,840.00
	Total assets	$	17,155.40		$	13,223.00		$	223,215.40		$	(30,083.1	)	$	223,510.70
	Condensed Consolidating Balance Sheet
	March 31, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Liabilities and Shareholders' Equity:
	Future policy benefits	$	—		$	—		$	14,532.60		$	—		$	14,532.60
	Contract owner account balances	—			—			69,723.50			—			69,723.50
	Payables under securities loan agreement, including collateral held	—			—			864.5			—			864.5
	Short-term debt with affiliates	180			260.5			109.5			(550.0		)	—
	Long-term debt	2,996.80			514.8			18.8			(15.4		)	3,515.00
	Funds held under reinsurance agreements	—			—			1,174.50			—			1,174.50
	Derivatives	110.4			—			1,080.40			(177.3		)	1,013.50
	Pension and other post-employment provisions	—			—			467.5			—			467.5
	Current income taxes	1.8			13.9			(12.2		)	—			3.5
	Deferred income taxes	(210.1		)	0.3			481.9			—			272.1
	Due to subsidiaries and affiliates	13.6			1.5			1.5			(16.6		)	—
	Other liabilities	61.4			5.5			1,212.60			(36.5		)	1,243.00
	Liabilities related to consolidated investment entities:
	Collateralized loan obligations notes, at fair value using the fair value option	—			—			5,525.50			—			5,525.50
	Other liabilities	—			—			967.5			—			967.5
	Liabilities related to separate accounts	—			—			107,840.00			—			107,840.00
	Total liabilities	3,153.90			796.5			203,988.10			(795.8		)	207,142.70
	Shareholders' equity:
	Total Voya Financial, Inc. shareholders' equity	14,001.50			12,426.50			16,860.80			(29,287.3		)	14,001.50
	Noncontrolling interest	—			—			2,366.50			—			2,366.50
	Total shareholders' equity	14,001.50			12,426.50			19,227.30			(29,287.3		)	16,368.00
Total liabilities and shareholders' equity	$	17,155.40		$	13,223.00		$	223,215.40		$	(30,083.1	)	$	223,510.70
Condensed Consolidating Balance Sheet
December 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Assets:
Investments:
Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	68,333.20		$	(15.4	)	$	68,317.80
Fixed maturities, at fair value using the fair value option	—			—			2,935.30			—			2,935.30
Equity securities, available-for-sale, at fair value	76.6			20.6			217.2			—			314.4
Short-term investments	—			—			1,048.10			—			1,048.10
Mortgage loans on real estate, net of valuation allowance	—			—			9,312.20			—			9,312.20
Policy loans	—			—			2,147.00			—			2,147.00
Limited partnerships/corporations	—			—			236.4			—			236.4
Derivatives	69.9			—			1,261.80			(182.4		)	1,149.30
Investments in subsidiaries	15,103.80			12,572.70			—			(27,676.5		)	—
Other investments	—			0.4			124.2			—			124.6
Securities pledged	—			—			1,465.70			—			1,465.70
Total investments	15,250.30			12,593.70			87,081.10			(27,874.3		)	87,050.80
Cash and cash equivalents	640.2			1.1			2,199.50			—			2,840.80
Short-term investments under securities loan agreements, including collateral delivered	30.7			—			542.3			(20.1		)	552.9
Accrued investment income	—			—			897.1			—			897.1
Reinsurance recoverable	—			—			6,702.20			—			6,702.20
Deferred policy acquisition costs and Value of business acquired	—			—			5,351.60			—			5,351.60
Sales inducements to contract holders	—			—			279			—			279
Deferred income taxes	204.4			—			(42.3		)	—			162.1
Goodwill and other intangible assets	—			—			323.7			—			323.7
Loans to subsidiaries and affiliates	211.3			—			0.3			(211.6		)	—
Due from subsidiaries and affiliates	26.9			0.6			1.7			(29.2		)	—
Other assets	43.4			—			995.1			(2.0		)	1,036.50
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	—			—			3,218.60			—			3,218.60
Cash and cash equivalents	—			—			710.7			—			710.7
Corporate loans, at fair value using the fair value option	—			—			4,965.30			—			4,965.30
Other assets	—			—			104.8			—			104.8
Assets held in separate accounts	—			—			106,827.10			—			106,827.10
Total assets	$	16,407.20		$	12,595.40		$	220,157.80		$	(28,137.2	)	$	221,023.20
Condensed Consolidating Balance Sheet
December 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Liabilities and Shareholders' Equity:
Future policy benefits	$	—		$	—		$	14,098.40		$	—		$	14,098.40
Contract owner account balances	—			—			69,908.30			—			69,908.30
Payables under securities loan agreement, including collateral held	—			—			769.4			—			769.4
Short-term debt with affiliates	—			125.4			85.9			(211.3		)	—
Long-term debt	2,996.70			514.7			18.7			(15.4		)	3,514.70
Funds held under reinsurance agreements	—			—			1,181.50			—			1,181.50
Derivatives	114			—			1,420.20			(182.4		)	1,351.80
Pension and other post-employment provisions	—			—			474.9			—			474.9
Current income taxes	(47.0		)	10.6			80.5			—			44.1
Due to subsidiaries and affiliates	0.2			1.5			12.5			(14.2		)	—
Other liabilities	71.1			14.4			1,226.00			(37.4		)	1,274.10
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	—			—			5,161.60			—			5,161.60
Other liabilities	—			—			903.3			—			903.3
Liabilities related to separate accounts	—			—			106,827.10			—			106,827.10
Total liabilities	3,135.00			666.6			202,168.30			(460.7		)	205,509.20
Shareholders' equity:
Total Voya Financial, Inc. shareholders' equity	13,272.20			11,928.80			15,747.70			(27,676.5		)	13,272.20
Noncontrolling interest	—			—			2,241.80			—			2,241.80
Total shareholders' equity	13,272.20			11,928.80			17,989.50			(27,676.5		)	15,514.00
Total liabilities and shareholders' equity	$	16,407.20		$	12,595.40		$	220,157.80		$	(28,137.2	)	$	221,023.20
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 (loss)	—			—			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 balance	—			—			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 Operations
For the Three Months Ended March 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Revenues:
Net investment income	$	25		$	0.1		$	1,174.30		$	(0.7	)	$	1,198.70
Fee income	—			—			891.9			—			891.9
Premiums	—			—			471.9			—			471.9
Net realized gains (losses):
Total other-than-temporary impairments	—			—			(11.6		)	—			(11.6		)
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	—			—			(0.6		)	—			(0.6		)
Net other-than-temporary impairments recognized in earnings	—			—			(11.0		)	—			(11.0		)
Other net realized capital gains (losses)	—			—			(863.8		)	—			(863.8		)
Total net realized capital gains (losses)	—			—			(874.8		)	—			(874.8		)
Other revenue	2.1			0.3			96.1			(2.9		)	95.6
Income (loss) related to consolidated investment entities:
Net investment income (loss)	—			—			44.2			—			44.2
Changes in fair value related to collateralized loan obligations	—			—			(8.9		)	—			(8.9		)
Total revenues	27.1			0.4			1,794.70			(3.6		)	1,818.60
Benefits and expenses:
Policyholder benefits	—			—			540.5			—			540.5
Interest credited to contract owner account balance	—			—			520.9			—			520.9
Operating expenses	2.7			—			759.3			(2.9		)	759.1
Net amortization of deferred policy acquisition costs and value of business acquired	—			—			130.5			—			130.5
Interest expense	27.4			15.5			2.2			(0.7		)	44.4
Operating expenses related to consolidated investment entities:
Interest expense	—			—			36.8			—			36.8
Other expense	—			—			0.7			—			0.7
Total benefits and expenses	30.1			15.5			1,990.90			(3.6		)	2,032.90
Income (loss) before income taxes	(3.0		)	(15.1		)	(196.2		)	—			(214.3		)
Income tax expense (benefit)	(2.0		)	(5.7		)	18.9			—			11.2
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	(1.0		)	(9.4		)	(215.1		)	—			(225.5		)
Equity in earnings (losses) of subsidiaries, net of tax	(211.0		)	(219.4		)	—			430.4			—
Net income (loss) including noncontrolling interest	(212.0		)	(228.8		)	(215.1		)	430.4			(225.5		)
Less: Net income (loss) attributable to noncontrolling interest	—			—			(13.5		)	—			(13.5		)
Net income (loss) available to Voya Financial, Inc.'s common shareholder	$	(212.0	)	$	(228.8	)	$	(201.6	)	$	430.4		$	(212.0	)
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 post-employment benefit 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 the noncontrolling interest	—			—			13.5			—			13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	$	986.5		$	506.5		$	1,044.30		$	(1,550.8	)	$	986.5
Condensed Consolidating Statement of Comprehensive Income
For the Three Months Ended March 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Net income (loss) including noncontrolling interest	$	(212.0	)	$	(228.8	)	$	(215.1	)	$	430.4		$	(225.5	)
Other comprehensive income (loss), before tax:
Unrealized gains (losses) on securities	(399.9		)	(137.0		)	(397.8		)	534.8			(399.9		)
Other-than-temporary impairments	10.9			6.9			10.9			(17.8		)	10.9
Pension and other post-employment benefit liability	(3.5		)	(0.8		)	(3.4		)	4.2			(3.5		)
Other comprehensive income (loss), before tax	(392.5		)	(130.9		)	(390.3		)	521.2			(392.5		)
Income tax expense (benefit) related to items of other comprehensive income (loss)	(134.6		)	(44.9		)	(133.8		)	178.7			(134.6		)
Other comprehensive income (loss), after tax	(257.9		)	(86.0		)	(256.5		)	342.5			(257.9		)
Comprehensive income (loss)	(469.9		)	(314.8		)	(471.6		)	772.9			(483.4		)
Less: Comprehensive income (loss) attributable to the noncontrolling interest	—			—			(13.5		)	—			(13.5		)
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholder	$	(469.9	)	$	(314.8	)	$	(458.1	)	$	772.9		$	(469.9	)
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2014
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
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
Purchase of consolidated investment entities	—			—			(1,258.8		)	—			(1,258.8		)
Maturity of intercompany loans issued to subsidiaries with maturities more than three months	0.6			—			—			(0.6		)	—
Net (issuance) 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		)	—
Dividends to parent	—			—			(26.0		)	26			—
Return of capital contributions to parent	—			—			(75.0		)	75			—
Contributions of capital from parent	—			—			156			(156.0		)	—
Borrowings of consolidated investment entities	—			—			28.4			—			28.4
Contributions from 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
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Net cash provided by (used in) operating activities	$	152.3		$	(2.0	)	$	(163.7	)	$	(15.0	)	$	(28.4	)
Cash Flows from Investing Activities:
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	—			—			4,455.80			—			4,455.80
Equity securities, available-for-sale	3.2			12.4			12.8			—			28.4
Mortgage loans on real estate	—			—			318.3			—			318.3
Limited partnerships/corporations	—			—			18			—			18
Acquisition of:
Fixed maturities	—			—			(4,802.8		)	—			(4,802.8		)
Equity securities, available-for-sale	(5.2		)	—			(4.2		)	—			(9.4		)
Mortgage loans on real estate	—			—			(581.4		)	—			(581.4		)
Limited partnerships/corporations	—			—			(9.8		)	—			(9.8		)
Short-term investments, net	—			—			2,999.10			—			2,999.10
Policy loans, net	—			—			(4.1		)	—			(4.1		)
Derivatives, net	—			—			(1,089.6		)	—			(1,089.6		)
Other investments, net	—			—			11.8			—			11.8
Sales from consolidated investments entities	—			—			573.8			—			573.8
Purchase of consolidated investment entities	—			—			(613.8		)	—			(613.8		)
Net maturity (issuance) of short-term intercompany loans	(34.9		)	(10.5		)	(13.4		)	58.8			—
Collateral received (delivered), net	8.6			—			(369.1		)	—			(360.5		)
Purchases of fixed assets, net	—			—			(6.6		)	—			(6.6		)
Net cash provided by (used in) investing activities	(28.3		)	1.9			894.8			58.8			927.2
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Cash Flows from Financing Activities:
Deposits received for investment contracts	—			—			2,936.20			—			2,936.20
Maturities and withdrawals from investment contracts	—			—			(2,996.6		)	—			(2,996.6		)
Proceeds from issuance of debt with maturities of more than three months	1,000.30			—			0.3			—			1,000.60
Repayment of debt with maturities of more than three months	(945.3		)	—			(359.3		)	—			(1,304.6		)
Short-term debt, net	(169.7		)	—			—			—			(169.7		)
Debt issuance costs	(6.5		)	—			—			—			(6.5		)
Net (repayments of) proceeds from short-term intercompany loans	23.9			—			34.9			(58.8		)	—
Dividends to parent	—			—			(15.0		)	15			—
Contributions from participants in consolidated investment entities	—			—			642.7			—			642.7
Net cash provided by (used in) financing activities	(97.3		)	—			243.2			(43.8		)	102.1
Net increase (decrease) in cash and cash equivalents	26.7			(0.1		)	974.3			—			1,000.90
Cash and cash equivalents, beginning of period	357.5			0.4			1,428.90			—			1,786.80
Cash and cash equivalents, end of period	$	384.2		$	0.3		$	2,403.20		$	—		$	2,787.70

Business_Basis_of_Presentation1

Business, Basis of Presentation and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2014
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 Note 13. Consolidated Investment Entities to these Condensed Consolidated Financial Statements. Intercompany transactions and balances have been eliminated.
	The accompanying Condensed Consolidated Financial Statements reflect all adjustments (including normal, recurring adjustments) necessary to present fairly the financial position of the Company as of March 31, 2014, and its results of operations, comprehensive income, changes in shareholders' equity and statements of cash flows for the three months ended March 31, 2014 and 2013, in conformity with U.S. GAAP. Interim results are not necessarily indicative of full year performance. The December 31, 2013 Consolidated Balance Sheet is from the audited Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, filed with the Securities and Exchange Commission ("SEC"), which included all disclosures required by U.S. GAAP. Therefore, these unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements of the Company included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013.
Adoption of New Pronouncements	'
	Adoption of New Pronouncements
	Presentation of Unrecognized Tax Benefits
	In July 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2013-11, "Income Taxes (Accounting Standards Codification ("ASC") Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists" ("ASU 2013-11"), which clarifies that:
	•	An unrecognized tax benefit should be presented as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss or a tax credit carryforward, except,
	•	An unrecognized tax benefit should be presented as a liability and not be combined with a deferred tax asset (i) to the extent a net operating loss carryforward, a similar tax loss or a tax credit carryforward is not available at the reporting date to settle any additional income taxes that would result from the disallowance of a tax position or (ii) the tax law does not require the entity to use, or the entity does not intend to use, the deferred tax asset for such a purpose.
	•	The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date.
	The provisions of ASU 2013-11 were adopted prospectively by the Company on January 1, 2014, to all unrecognized tax benefits existing on that date. The adoption had no effect on the Company's financial condition, results of operations or cash flows, as the guidance is consistent with that previously applied.
	Investment Companies
	In June 2013, the FASB issued ASU 2013-08, "Financial Services-Investment Companies (ASC Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements" ("ASU 2013-08"), which provides comprehensive guidance for assessing whether an entity is an investment company and requires an investment company to measure noncontrolling ownership interests in other investment companies at fair value. ASU 2013-08 also requires an entity to disclose that it is an investment company and any changes to that status, as well as information about financial support provided or required to be provided to investees.
	The provisions of ASU 2013-08 were adopted prospectively by the Company on January 1, 2014, for entities that are investment companies at that date. The adoption had no effect on the Company's financial condition, results of operations or cash flows.
	Joint and Several Liability Arrangements
	In February 2013, the FASB issued ASU 2013-04, "Liabilities (ASC Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date" ("ASU 2013-04"), which requires an entity to measure obligations resulting from joint and several liable arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, as the sum of (1) the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and (2) any additional amount it expects to pay on behalf of its co-obligors. ASU 2013-04 also requires an entity to disclose the nature and amount of the obligation, as well as other information about those obligations. The adoption had no effect on the Company's financial condition, results of operations or cash flows, as the Company did not have any fixed obligations under joint and several liable arrangements as of January 1, 2014.
	Fees Paid to the Federal Government by Health Insurers
	In July 2011, the FASB issued ASU 2011-06, "Other Expenses (Topic 720): Fees Paid to the Federal Government by Health Insurers" ("ASU 2011-06"), which specifies how health insurers should recognize and classify the annual fee imposed by the Patient Protection and Affordable Care Act as amended by the Health Care Education Reconciliation Act (the "Acts"). The liability for the fee should be estimated and recorded in full at the time the entity provides qualifying health insurance in the year in which the fee is payable, with a corresponding deferred cost that is amortized to expense.
	The provisions of ASU 2011-06 were adopted by the Company on January 1, 2014, when the fee initially became effective. The adoption of ASU 2011-06 had no effect on the Company's financial condition, results of operations or cash flows, as the amount of net premium written for qualifying health insurance by the Company in 2014 is expected to be below the $25.0 threshold as defined by the Acts and, thus, not subject to the fee.
	Future Adoption of Accounting Pronouncements
	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 does not expect ASU 2014-08 to have an impact on its financial condition, results of operations, cash flows or disclosures, as the Company does not have any discontinued operations as of March 31, 2014.
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 margin 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. An increase in the equity volatility results in a 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 externally managed variable bond funds 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 a coinsurance with a funds withheld arrangement which contains an embedded derivative whose fair value is based on the change in the fair value of the underlying assets held in trust. The embedded derivatives for certain fixed maturity instruments, certain annuity products and coinsurance with funds withheld arrangements are reported with the host contract in investments, in Future policy benefits or Funds held under reinsurance agreements, respectively, on the Condensed Consolidated Balance Sheets. Changes in the fair value of embedded derivatives within fixed maturity investments and within annuity products are recorded in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations. Changes in fair value of embedded derivatives with reinsurance agreements are reported in Policyholder benefits in the Condensed Consolidated Statements of Operations.
	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 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 the Fair Value Measurements and disclosures of the FASB ASC Topic 820. 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 included in the Annual Report on Form 10-K for the year ended December 31, 2013. 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: Federal Home Loan Bank ("FHLB") stock 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 a fixed maturity 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 a fixed maturity 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	'
	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.
	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.
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, RSUs and stock options 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-based awards, which have a fixed grant-date fair value, the fair value of unsettled liability awards is remeasured at the end of each reporting period until the awards vest.
Related Party Transactions	'
	In the normal course of business, the Company enters into various transactions with affiliated companies. 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.

Investments_Tables

Investments (Tables)	3 Months Ended
	Mar. 31, 2014
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, 2014:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	4,991.60		$	315.6			$	44.1		$	—		$	5,263.10		$	—
	U.S. Government agencies and authorities	610.6			33.7				0.2			—			644.1			—
	State, municipalities and political subdivisions	276.5			17.5				0.4			—			293.6			—
	U.S. corporate securities	36,658.80			2,876.30				361.6			—			39,173.50			11.8
	Foreign securities(1):
	Government	886.3			45				24.1			—			907.2			—
	Other	14,859.90			1,062.20				88.7			—			15,833.40			—
	Total foreign securities	15,746.20			1,107.20				112.8			—			16,740.60			—
	Residential mortgage-backed securities:
	Agency	5,319.70			432.7				41.9			76.2			5,786.70			0.3
	Non-Agency	1,054.70			175.3				10.9			46.9			1,266.00			93.3
	Total Residential mortgage-backed securities	6,374.40			608				52.8			123.1			7,052.70			93.6
	Commercial mortgage-backed securities	3,472.80			323.9				0.6			—			3,796.10			—
	Other asset-backed securities	1,789.40			81.4				31.4			—			1,839.40			5
	Total fixed maturities, including securities pledged	69,920.30			5,363.60				603.9			123.1			74,803.10			110.4
	Less: Securities pledged	1,230.30			50.4				9.4			—			1,271.30			—
	Total fixed maturities	68,690.00			5,313.20				594.5			123.1			73,531.80			110.4
	Equity securities:
	Common stock	194.3			2.3				0.2			—			196.4			—
	Preferred stock	50.5			29.7				—			—			80.2			—
	Total equity securities	244.8			32				0.2			—			276.6			—
	Total fixed maturities and equity securities investments	$	68,934.80		$	5,345.20			$	594.7		$	123.1		$	73,808.40		$	110.4
	(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.
	Available-for-sale and FVO fixed maturities and equity securities were as follows as of December 31, 2013:
		Amortized Cost			Gross Unrealized Capital Gains				Gross Unrealized Capital Losses			Embedded Derivatives(2)			Fair Value			OTTI(3)
	Fixed maturities:
	U.S. Treasuries	$	5,094.00		$	174			$	86.8		$	—		$	5,181.20		$	—
	U.S. Government agencies and authorities	598			22.3				1.4			—			618.9			—
	State, municipalities and political subdivisions	272			10.6				1.5			—			281.1			—
	U.S. corporate securities	36,010.30			2,174.50				706.2			—			37,478.60			12.8
	Foreign securities(1):
	Government	1,044.00			49.6				42.2			—			1,051.40			—
	Other	14,617.40			864.2				176.5			—			15,305.10			—
	Total foreign securities	15,661.40			913.8				218.7			—			16,356.50			—
	Residential mortgage-backed securities:
	Agency	5,379.20			431.1				62.1			79.2			5,827.40			0.4
	Non-Agency	1,101.10			166.2				18.3			47.3			1,296.30			103.2
	Total Residential mortgage-backed securities	6,480.30			597.3				80.4			126.5			7,123.70			103.6
	Commercial mortgage-backed securities	3,427.90			327.7				3.5			—			3,752.10			4.4
	Other asset-backed securities	1,883.10			81.6				38			—			1,926.70			5.2
	Total fixed maturities, including securities pledged	69,427.00			4,301.80				1,136.50			126.5			72,718.80			126
	Less: Securities pledged	1,457.90			24.6				16.8			—			1,465.70			—
	Total fixed maturities	67,969.10			4,277.20				1,119.70			126.5			71,253.10			126
	Equity securities:
	Common stock	214.3			5.1				0.9			—			218.5			—
	Preferred stock	53.1			43.4				0.6			—			95.9			—
	Total equity securities	267.4			48.5				1.5			—			314.4			—
	Total fixed maturities and equity securities investments	$	68,236.50		$	4,325.70			$	1,121.20		$	126.5		$	71,567.50		$	126
	(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.
Investments Classified by Contractual Maturity Date	'
	The amortized cost and fair value of fixed maturities, including securities pledged, as of March 31, 2014, 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	$	1,999.30		$	2,032.50
	After one year through five years	13,858.50			14,748.50
	After five years through ten years	21,329.90			22,070.10
	After ten years	21,096.00			23,263.80
	Mortgage-backed securities	9,847.20			10,848.80
	Other asset-backed securities	1,789.40			1,839.40
	Fixed maturities, including securities pledged	$	69,920.30		$	74,803.10
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, 2014
	Communications	$	3,966.90		$	403.4			$	29.2		$	4,341.10
	Financial	6,990.90			675.5				42.7			7,623.70
	Industrial and other companies	29,959.30			1,964.80				293.2			31,630.90
	Utilities	9,165.50			778.4				70.8			9,873.10
	Transportation	1,436.10			116.4				14.4			1,538.10
	Total	$	51,518.70		$	3,938.50			$	450.3		$	55,006.90
	December 31, 2013
	Communications	$	4,016.20		$	293			$	73.4		$	4,235.80
	Financial	6,640.70			566.6				72.6			7,134.70
	Industrial and other companies	29,303.10			1,524.50				564.5			30,263.10
	Utilities	9,200.60			570				142.2			9,628.40
	Transportation	1,467.10			84.6				30			1,521.70
	Total	$	50,627.70		$	3,038.70			$	882.7		$	52,783.70
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, 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	$	1,315.70		$	7.9			$	927.9		$	29.4		$	45.1		$	6.8	$	2,288.70	$	44.1
	U.S. Government agencies and authorities	6.8			—			*	57.5			0.2			—			—		64.3		0.2
	U.S. corporate, state and municipalities	1,316.40			14.2				5,743.40			247.1			1,112.80			100.7		8,172.60		362
	Foreign	345.1			2.4				1,842.90			84.5			295.9			25.9		2,483.90		112.8
	Residential mortgage-backed	427.1			2.7				950.4			27.1			392.2			23		1,769.70		52.8
	Commercial mortgage-backed	28.6			0.6				—			—			—			—		28.6		0.6
	Other asset-backed	146.7			0.7				45.9			0.4			288.1			30.3		480.7		31.4
	Total	$	3,586.40		$	28.5			$	9,568.00		$	388.7		$	2,134.10		$	186.7	$	15,288.50	$	603.9
	* 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, 2013:
		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	$	1,559.50		$	24.3			$	1,087.60		$	52.6		$	41.9		$	9.9	$	2,689.00	$	86.8
	U.S. Government agencies and authorities	9.5			—			*	55.9			1.4			—			—		65.4		1.4
	U.S. corporate, state and municipalities	3,524.90			78.5				6,893.90			519.6			821.9			109.6		11,240.70		707.7
	Foreign	1,133.60			16				2,447.80			184.3			179.1			18.4		3,760.50		218.7
	Residential mortgage-backed	919.1			8.3				1,019.60			40.6			377.9			31.5		2,316.60		80.4
	Commercial mortgage-backed	235.8			3.3				—			—			6.2			0.2		242		3.5
	Other asset-backed	150.6			0.9				105.5			1.5			299.3			35.6		555.4		38
	Total	$	7,533.00		$	131.3			$	11,610.30		$	800		$	1,726.30		$	205.2	$	20,869.60	$	1,136.50
	* 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, 2014	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS > 100%	$	38.9		$	2.6			$	4.2		$	0.6
	Non-agency RMBS 90% - 100%	80.5			7.1				5.1			1.6
	Non-agency RMBS 80% - 90%	99.9			4.8				9.1			1.2
	Non-agency RMBS < 80%	281			6.8				15.7			2.1
	Agency RMBS	1,605.80			4.5				39.3			2.6
	Other ABS (Non-RMBS)	200.6			2.1				2.2			0.5
	Total RMBS and Other ABS	$	2,306.70		$	27.9			$	75.6		$	8.6
		Credit Enhancement Percentage
		Amortized Cost							Unrealized Capital Losses
	March 31, 2014	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS 10% +	$	387.3		$	17.9			$	27.8		$	4.4
	Non-agency RMBS 5% - 10%	20.6			—				0.7			—
	Non-agency RMBS 0% - 5%	34.1			—				1			—
	Non-agency RMBS 0%	58.3			3.4				4.6			1.1
	Agency RMBS	1,605.80			4.5				39.3			2.6
	Other ABS (Non-RMBS)	200.6			2.1				2.2			0.5
	Total RMBS and Other ABS	$	2,306.70		$	27.9			$	75.6		$	8.6
		Fixed Rate/Floating Rate
		Amortized Cost							Unrealized Capital Losses
	March 31, 2014	< 20%			> 20%				< 20%			> 20%
	Fixed Rate	$	1,317.30		$	4.2			$	36.3		$	1.4
	Floating Rate	989.4			23.7				39.3			7.2
	Total	$	2,306.70		$	27.9			$	75.6		$	8.6
	(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, 2013	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS > 100%	$	75.7		$	36.4			$	2.9		$	8.3
	Non-agency RMBS 90% - 100%	156.8			24.1				8.6			5.7
	Non-agency RMBS 80% - 90%	151.3			5.9				8.4			1.7
	Non-agency RMBS < 80%	284.7			8				15.5			2.2
	Agency RMBS	2,008.90			11.3				57.9			4.2
	Other ABS (Non-RMBS)	225.2			2.1				2.5			0.5
	Total RMBS and Other ABS	$	2,902.60		$	87.8			$	95.8		$	22.6
		Credit Enhancement Percentage
		Amortized Cost							Unrealized Capital Losses
	December 31, 2013	< 20%			> 20%				< 20%			> 20%
	RMBS and Other ABS(1)
	Non-agency RMBS 10% +	$	407.1		$	47.7			$	27.6		$	11.1
	Non-agency RMBS 5% - 10%	43.9			0.8				1.2			0.2
	Non-agency RMBS 0% - 5%	90.4			3.9				1.9			0.8
	Non-agency RMBS 0%	127.1			22				4.7			5.8
	Agency RMBS	2,008.90			11.3				57.9			4.2
	Other ABS (Non-RMBS)	225.2			2.1				2.5			0.5
	Total RMBS and Other ABS	$	2,902.60		$	87.8			$	95.8		$	22.6
		Fixed Rate/Floating Rate
		Amortized Cost							Unrealized Capital Losses
	December 31, 2013	< 20%			> 20%				< 20%			> 20%
	Fixed Rate	$	1,723.70		$	4.4			$	50.5		$	1.6
	Floating Rate	1,178.90			83.4				45.3			21
	Total	$	2,902.60		$	87.8			$	95.8		$	22.6
	(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 activity in the allowance for losses for all commercial mortgage loans for the periods indicated:
		March 31, 2014			December 31, 2013
	Collective valuation allowance for losses, balance at January 1	$	3.8		$	3.9
	Addition to (reduction of) allowance for losses	(0.4		)	(0.1		)
	Collective valuation allowance for losses, end of period	$	3.4		$	3.8
	The following table summarizes the Company's investment in mortgage loans as of the dates indicated:
		March 31, 2014			December 31, 2013
	Commercial mortgage loans	$	9,261.50		$	9,316.00
	Collective valuation allowance	(3.4		)	(3.8		)
	Total net commercial mortgage loans	$	9,258.10		$	9,312.20
Impaired Financing Receivables	'
	The carrying values and unpaid principal balances of impaired mortgage loans were as follows as of the dates indicated:
		March 31, 2014			December 31, 2013
	Impaired loans with allowances for losses	$	—		$	—
	Impaired loans without allowances for losses	94.2			94.3
	Subtotal	94.2			94.3
	Less: Allowances for losses on impaired loans	—			—
	Impaired loans, net	$	94.2		$	94.3
	Unpaid principal balance of impaired loans	$	96.6		$	96.7
Past Due Financing Receivables, Impaired Financing Receivables, Troubled Debt Restructurings on Financing Receivables, and Loans in Foreclosure	'
	The following table presents information on impaired loans, restructured loans, loans 90 days or more past due and loans in foreclosure as of the dates indicated:
		March 31, 2014			December 31, 2013
	Troubled debt restructured loans	$	86.6		$	86.6
	Loans 90 days or more past due, interest no longer accruing, at amortized cost	—			5.1
	Loans in foreclosure, at amortized cost	—			—
	Unpaid principal balance of loans 90 days or more past due, interest no longer accruing	—			5.1
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,
		2014			2013
	Impaired loans, average investment during the period (amortized cost) (1)	$	94.2		$	16.9
	Interest income recognized on impaired loans, on an accrual basis (1)	1.3			0.2
	Interest income recognized on impaired loans, on a cash basis (1)	1			0.2
	Interest income recognized on troubled debt restructured loans, on an accrual basis	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, 2014 (1)			December 31, 2013(1)
	Loan-to-Value Ratio:
	0% - 50%	$	1,604.30		$	1,782.60
	50% - 60%	2,484.60			2,390.00
	60% - 70%	4,708.80			4,668.30
	70% - 80%	445.1			455.8
	80% and above	18.7			19.3
	Total Commercial mortgage loans	$	9,261.50		$	9,316.00
	(1) Balances do not include allowance for mortgage loan credit losses.
	The following table presents the DSC ratios as of the dates indicated:
		March 31, 2014 (1)			December 31, 2013(1)
	Debt Service Coverage Ratio:
	Greater than 1.5x	$	6,333.10		$	6,346.50
	1.25x - 1.5x	1,515.30			1,520.90
	1.0x - 1.25x	973.2			980.6
	Less than 1.0x	439.7			467.8
	Commercial mortgage loans secured by land or construction loans	0.2			0.2
	Total Commercial mortgage loans	$	9,261.50		$	9,316.00
	(1) Balances do not include allowance for mortgage loan credit 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, 2014 (1)						December 31, 2013(1)
		Gross Carrying Value			% of			Gross Carrying Value			% of
					Total						Total
	Commercial Mortgage Loans by U.S. Region:
	Pacific	$	2,369.20		25.6	%		$	2,281.80		24.5	%
	South Atlantic	1,964.60			21.2	%		1,936.00			20.8	%
	Middle Atlantic	1,113.20			12	%		1,112.00			11.9	%
	West South Central	1,112.70			12	%		1,122.30			12	%
	East North Central	1,055.60			11.4	%		1,037.50			11.1	%
	Mountain	771.7			8.3	%		790.4			8.5	%
	West North Central	525.6			5.7	%		517.2			5.6	%
	East South Central	198.7			2.2	%		200.7			2.2	%
	New England	150.2			1.6	%		318.1			3.4	%
	Total Commercial mortgage loans	$	9,261.50		100	%		$	9,316.00		100	%
	(1) Balances do not include allowance for mortgage loan credit losses.
Mortgage Loans by Property Type of Collateral	'
		March 31, 2014 (1)						December 31, 2013(1)
		Gross Carrying Value			% of			Gross Carrying Value			% of
					Total						Total
	Commercial Mortgage Loans by Property Type:
	Retail	$	2,951.00		31.9	%		$	2,936.90		31.5	%
	Industrial	2,818.60			30.4	%		2,848.00			30.6	%
	Apartments	1,348.70			14.6	%		1,296.10			13.9	%
	Office	1,089.00			11.7	%		1,242.20			13.3	%
	Hotel/Motel	382.1			4.1	%		430.6			4.6	%
	Mixed Use	305.8			3.3	%		184.1			2	%
	Other	366.3			4	%		378.1			4.1	%
	Total Commercial mortgage loans	$	9,261.50		100	%		$	9,316.00		100	%
	(1) Balances do not include allowance for mortgage loan credit 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, 2014 (1)			December 31, 2013(1)
	Year of Origination:
	2014	$	252.9		$	—
	2013	2,187.00			2,199.80
	2012	1,731.50			1,743.30
	2011	1,804.90			1,835.90
	2010	394.4			409.8
	2009	148.9			149.5
	2008 and prior	2,741.90			2,977.70
	Total Commercial mortgage loans	$	9,261.50		$	9,316.00
	(1) Balances do not include allowance for mortgage loan credit 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,
		2014						2013
		Impairment			No. of			Impairment			No. of
					Securities						Securities
	U.S. corporate	$	0.4		1			$	—		—
	Residential mortgage-backed	1.6			37			3.6			74
	Commercial mortgage-backed	0.2			2			0.1			2
	Other asset-backed	0.1			2			7.3			2
	Equity	1			2			—			—
	Total	$	3.3		44			$	11		78
Net Investment Income	'
	The following table summarizes Net investment income for the periods indicated:
		Three Months Ended March 31,
		2014			2013
	Fixed maturities	$	984.8		$	1,012.60
	Equity securities, available-for-sale	3.8			2.6
	Mortgage loans on real estate	115.3			118.2
	Policy loans	28			29.9
	Short-term investments and cash equivalents	0.8			0.9
	Other	14.1			35.9
	Gross investment income	1,146.80			1,200.10
	Less: investment expenses	1.2			1.4
	Net investment income	$	1,145.60		$	1,198.70
Realized Gain (Loss) on Investments	'
	Net realized capital gains (losses) were as follows for the periods indicated:
		Three Months Ended March 31,
		2014			2013
	Fixed maturities, available-for-sale, including securities pledged	$	13.7		$	9.4
	Fixed maturities, at fair value option	(18.9		)	(107.6		)
	Equity securities, available-for-sale	17.1			0.2
	Derivatives	53.8			(1,099.7		)
	Embedded derivative - fixed maturities	(3.3		)	(23.3		)
	Embedded derivative - product guarantees	(255.1		)	346.3
	Other investments	2.1			(0.1		)
	Net realized capital gains (losses)	$	(190.6	)	$	(874.8	)
	After-tax net realized capital gains (losses)	$	(118.3	)	$	(568.7	)
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,
		2014			2013
	Proceeds on sales	$	1,494.90		$	3,212.70
	Gross gains	39.7			42
	Gross losses	19.8			14.4
Past Due Financing Receivables [Table Text Block]	'
	The following table presents the aging of past due mortgage loans at carrying value as of the dates indicated:
	($ in millions)	30 days or less past due			31 to 90 days past due				91 to 180 days past due			181 days or more past due			Total
	As of March 31, 2014	$	—		$	—			$	—		$	—		$	—
	As of December 31, 2013	—			5.1				—			—			5.1
Intent related impairment	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'
Other than Temporary Impairment, Credit Losses Recognized in Earnings	'
	The following tables summarize these intent impairments, which are also recognized in earnings, by type for the periods indicated:
		Three Months Ended March 31,
		2014						2013
		Impairment			No. of			Impairment			No. of
					Securities						Securities
	Commercial mortgage-backed	$	0.2		2			$	0.1		2
	Other asset-backed	—			—			7.3			2
	Total	$	0.2		2			$	7.4		4
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,
		2014			2013
	Balance at January 1	$	102.8		$	114.7
	Additional credit impairments:
	On securities not previously impaired	1.1			0.2
	On securities previously impaired	1			3
	Reductions:
	Securities intent impaired	—			—
	Securities sold, matured, prepaid or paid down	(3.8		)	(5.5		)
	Balance at March 31	$	101.1		$	112.4
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, 2014
	Six months or less below amortized cost	$	3,892.30		$	35.4			$	69.1		$	8.5		322		9
	More than six months and twelve months or less below amortized cost	9,935.50			12.9				381.6			4.1			622		5
	More than twelve months below amortized cost	2,004.70			11.6				136.9			3.7			338		15
	Total	$	15,832.50		$	59.9			$	587.6		$	16.3		1,282		29
	December 31, 2013
	Six months or less below amortized cost	$	7,883.30		$	80.5			$	166		$	18.6		570		20
	More than six months and twelve months or less below amortized cost	12,339.70			67.6				776.8			16.7			798		8
	More than twelve months below amortized cost	1,579.20			55.8				144.5			13.9			302		22
	Total	$	21,802.20		$	203.9			$	1,087.30		$	49.2		1,670		50
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, 2014
	U.S. Treasuries	$	2,332.80		$	—			$	44.1		$	—		28		—
	U.S. Government agencies and authorities	64.5			—				0.2			—			3		—
	U.S. corporate, state and municipalities	8,506.00			28.6				355.1			6.9			520		3
	Foreign	2,593.30			3.4				112			0.8			210		1
	Residential mortgage-backed	1,814.60			7.9				49			3.8			416		15
	Commercial mortgage-backed	29.2			—			*	0.6			—		*	8		1
	Other asset-backed	492.1			20				26.6			4.8			97		9
	Total	$	15,832.50		$	59.9			$	587.6		$	16.3		1,282		29
	December 31, 2013
	U.S. Treasuries	$	2,750.50		$	25.3			$	81.4		$	5.4		32		1
	U.S. Government agencies and authorities	66.8			—				1.4			—			3		—
	U.S. corporate, state and municipalities	11,892.60			55.8				694.2			13.5			744		5
	Foreign	3,944.20			35				211			7.7			300		6
	Residential mortgage-backed	2,361.40			35.6				70.2			10.2			471		25
	Commercial mortgage-backed	245.5			—				3.5			—			16		—
	Other asset-backed	541.2			52.2				25.6			12.4			104		13
	Total	$	21,802.20		$	203.9			$	1,087.30		$	49.2		1,670		50
	* Less than $0.1.

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
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, 2014									December 31, 2013
		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	$	723.5		$	94.9		$	—		$	786	$	81	$	0.5
	Foreign exchange contracts	174.7			5.5			2.1			174.7		6.3		1.6
	Fair value hedges:
	Interest rate contracts	873.5			3.6			62.6			873.5		4.8		64.7
	Derivatives: Non-qualifying for hedge accounting(1)
	Interest rate contracts(2)	60,311.60			666.7			804.6			63,122.00		826.2		1,174.30
	Foreign exchange contracts	1,233.20			21.1			29.2			1,281.70		17.8		43.3
	Equity contracts	17,412.70			217.6			102.6			11,725.90		172.7		52.9
	Credit contracts	3,221.00			35.3			12.4			3,221.00		40.5		14.5
	Embedded derivatives:
	Within fixed maturity investments	N/A			123.1			—			N/A		126.5		—
	Within annuity products	N/A			—			2,969.30			N/A		—		2,645.60
	Within reinsurance agreements	N/A			—			95.9			N/A		—		79
	Total				$	1,167.80		$	4,078.70				$	1,275.80	$	4,076.40
	(1) Open derivative contracts are reported as Derivatives assets or liabilities on the Condensed Consolidated Balance Sheets at fair value.
	(2) As of March 31, 2014, includes a notional amount, asset fair value and liability fair value for interest rate caps of $11.8 billion, $101.0 and $17.7, respectively. As of December 31, 2013, includes a notional amount, asset fair value and liability fair value for interest rate caps of $11.8 billion, $162.5 and $29.7, respectively.
	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 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, 2014
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	3,221.00		$	35.3		$	12.4
	Equity contracts	9,707.40			212.1			44.6
	Foreign exchange contracts	1,407.90			26.6			31.3
	Interest rate contracts	61,908.60			765.2			867.2
					1,039.20			955.5
	Counterparty netting(1)				(589.5		)	(589.5		)
	Cash collateral netting(1)				(326.6		)	(13.6		)
	Securities collateral netting(1)				(43.7		)	(260.9		)
	Net receivables/payables				$	79.4		$	91.5
	(1) Represents the netting of receivable balances with payable balances, net of collateral, for the same counterparty under eligible netting agreements.
		31-Dec-13
		Notional Amount			Asset Fair Value			Liability Fair Value
	Credit contracts	$	3,221.00		$	40.5		$	14.5
	Equity contracts	4,513.50			170.7			32
	Foreign exchange contracts	1,456.40			24.1			44.9
	Interest rate contracts	64,734.10			912			1,239.50
					1,147.30			1,330.90
	Counterparty netting(1)				(701.0		)	(701.0		)
	Cash collateral netting(1)				(241.7		)	(15.7		)
	Securities collateral netting(1)				(35.9		)	(479.1		)
	Net receivables/payables				$	168.7		$	135.1
	(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,
		2014			2013
	Derivatives: Qualifying for hedge accounting(1)
	Cash flow hedges:
	Interest rate contracts	$	0.2		$	0.1
	Foreign exchange contracts	0.4			—
	Fair value hedges:
	Interest rate contracts	(5.2		)	1.3
	Derivatives: Non-qualifying for hedge accounting(2)
	Interest rate contracts	204.2			(256.0		)
	Foreign exchange contracts	(1.7		)	87.1
	Equity contracts	(144.9		)	(939.1		)
	Credit contracts	0.8			6.9
	Embedded derivatives:
	Within fixed maturity investments(2)	(3.3		)	(23.3		)
	Within annuity products(2)	(255.1		)	346.3
	Within reinsurance agreements(3)	(16.7		)	14.7
	Total	$	(221.3	)	$	(762.0	)
	(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, 2014 and 2013, 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_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]	'
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, 2014:
		Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value			Change In
		as of				Realized/Unrealized																			into		out of			as of			Unrealized
		1-Jan				Gains (Losses)																			Level 3(2)		Level 3(2)			31-Mar			Gains
						Included in:																											(Losses)
																																	Included in
						Net				OCI																							Earnings(3)
						Income
	Fixed maturities, including securities pledged:
	U.S. Government agencies and authorities	$	14.4			$	—			$	—		$	—		$	—		$	—		$	(0.2	)	$	—	$	(7.0	)	$	7.2		$	—
	U.S. corporate, state and municipalities	456.5				—				4.5			108			—			—			(10.1		)	12.8		(3.0		)	568.7			—
	Foreign	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(1)	(1,736.7		)		(42.4		)		—			—			(50.3		)	—			21.4			—		—			(1,808.0		)	—
	GMAB/GMWB/GMWBL(1)	(908.9		)		(195.9		)		—			—			(38.6		)	—			0.1			—		—			(1,143.3		)	—
	Stabilizer and MCGs(1)	—				(16.8		)		—			(1.2		)	—			—			—			—		—			(18.0		)	—
	Other derivatives, net	80.3				1				—			7.4			—			—			(21.6		)	—		—			67.1			(12.7		)
	Assets held in separate accounts(4)	13.1				—				—			5.8			—			(1.0		)	—			—		—			17.9			—
	(1) 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.
	(2) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
	(3) 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.
	(4) 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 result in a net zero impact on net income 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, 2013:
		Fair Value				Total							Purchases			Issuances			Sales			Settlements			Transfers		Transfers			Fair Value			Change In
		as of				Realized/Unrealized																			into		out of			as of			Unrealized
		1-Jan				Gains (Losses)																			Level 3(2)		Level 3(2)			31-Mar			Gains
						Included in:																											(Losses)
																																	Included in
						Net				OCI																							Earnings(3)
						Income
	Fixed maturities, including securities pledged:
	U.S. Government agencies and authorities	$	—			$	—			$	—		$	—		$	—		$	—		$	—		$	—	$	—		$	—		$	—
	U.S. corporate, state and municipalities	524.2				(0.1		)		2.2			50.1			—			—			(13.5		)	58.5		(64.6		)	556.8			(0.1		)
	Foreign	104.2				—				4.8			—			—			—			(1.7		)	—		—			107.3			—
	Residential mortgage-backed securities	74.1				(1.8		)		—			16			—			—			(0.2		)	0.2		—			88.3			(1.8		)
	Commercial mortgage-backed securities	—				—				—			—			—			—			—			—		—			—			—
	Other asset-backed securities	115.2				5.9				(0.7		)	—			—			—			(19.5		)	0.3		(0.3		)	100.9			3.7
	Total fixed maturities including securities pledged	817.7				4				6.3			66.1			—			—			(34.9		)	59		(64.9		)	853.3			1.8
	Equity securities, available-for-sale	55.8				(0.3		)		1.8			2			—			(1.9		)	—			51.8		(49.8		)	59.4			—
	Derivatives:
	Product guarantees:
	FIA(1)	(1,434.3		)		(123.7		)		—			—			(15.1		)	—			11.4			—		—			(1,561.7		)	—
	GMAB/GMWB/GMWBL(1)	(2,035.4		)		444.5				—			—			(37.8		)	—			0.1			—		—			(1,628.6		)	—
	Stabilizer and MCGs(1)	(102.0		)		25.5				—			(1.5		)	—			—			—			—		—			(78.0		)	—
	Other derivatives, net	22.9				44.7				—			6.3			—			—			(8.4		)	—		—			65.5			37.6
	Assets held in separate accounts(4)	16.3				—				—			0.2			—			(6.6		)	—			2.2		(9.9		)	2.2			—
	(1) 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.
	(2) The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
	(3) 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.
	(4) 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 result in a net zero impact on net income for the Company.
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, 2014:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	4,677.10			$	586			$	—		$	5,263.10
	U.S. Government agencies and authorities	—				636.9				7.2			644.1
	U.S. corporate, state and municipalities	—				38,898.40				568.7			39,467.10
	Foreign(1)	—				16,609.90				130.7			16,740.60
	Residential mortgage-backed securities	—				6,948.30				104.4			7,052.70
	Commercial mortgage-backed securities	—				3,771.20				24.9			3,796.10
	Other asset-backed securities	—				1,797.20				42.2			1,839.40
	Total fixed maturities, including securities pledged	4,677.10				69,247.90				878.1			74,803.10
	Equity securities, available-for-sale	215.1				4.4				57.1			276.6
	Derivatives:
	Interest rate contracts	—				765.2				—			765.2
	Foreign exchange contracts	—				26.6				—			26.6
	Equity contracts	5.5				138.9				73.2			217.6
	Credit contracts	—				29				6.3			35.3
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	3,834.20				270.4				—			4,104.60
	Assets held in separate accounts	102,600.40				5,221.70				17.9			107,840.00
	Total assets	$	111,332.30			$	75,704.10			$	1,032.60		$	188,069.00
	Percentage of Level to total	59.3		%		40.3		%		0.4		%	100		%
	Liabilities:
	Derivatives:
	Annuity product guarantees:
	FIA	$	—			$	—			$	1,808.00		$	1,808.00
	GMAB/GMWB/GMWBL(2)	—				—				1,143.30			1,143.30
	Stabilizer and MCGs	—				—				18			18
	Other derivatives:
	Interest rate contracts	—				867.2				—			867.2
	Foreign exchange contracts	—				31.3				—			31.3
	Equity contracts	58				44.6				—			102.6
	Credit contracts	—				—				12.4			12.4
	Embedded derivative on reinsurance	—				95.9				—			95.9
	Total liabilities	$	58			$	1,039.00			$	2,981.70		$	4,078.70
	(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, 2013:
		Level 1				Level 2				Level 3			Total
	Assets:
	Fixed maturities, including securities pledged:
	U.S. Treasuries	$	4,617.00			$	564.2			$	—		$	5,181.20
	U.S. Government agencies and authorities	—				604.5				14.4			618.9
	U.S. corporate, state and municipalities	—				37,303.20				456.5			37,759.70
	Foreign(1)	—				16,202.20				154.3			16,356.50
	Residential mortgage-backed securities	—				7,025.10				98.6			7,123.70
	Commercial mortgage-backed securities	—				3,752.10				—			3,752.10
	Other asset-backed securities	—				1,867.50				59.2			1,926.70
	Total fixed maturities, including securities pledged	4,617.00				67,318.80				783			72,718.80
	Equity securities, available-for-sale	238.5				20.6				55.3			314.4
	Derivatives:
	Interest rate contracts	—				912				—			912
	Foreign exchange contracts	—				24.1				—			24.1
	Equity contracts	1.9				83.3				87.5			172.7
	Credit contracts	—				33.2				7.3			40.5
	Cash and cash equivalents, short-term investments and short-term investments under securities loan agreements	4,396.90				44.9				—			4,441.80
	Assets held in separate accounts	101,437.50				5,376.50				13.1			106,827.10
	Total assets	$	110,691.80			$	73,813.40			$	946.2		$	185,451.40
	Percentage of Level to total	59.7		%		39.8		%		0.5		%	100		%
	Liabilities:
	Derivatives:
	Annuity product guarantees:
	FIA	$	—			$	—			$	1,736.70		$	1,736.70
GMAB/GMWB/GMWBL	—				—				908.9			908.9
Stabilizer and MCGs	—				—				—			—
Other derivatives:
Interest rate contracts	—				1,239.50				—			1,239.50
Foreign exchange contracts	—				44.9				—			44.9
Equity contracts	20.9				32				—			52.9
Credit contracts	—				—				14.5			14.5
Embedded derivative on reinsurance	—				79				—			79
Total liabilities	$	20.9			$	1,395.40			$	2,660.10		$	4,076.40
(1)Primarily U.S. dollar denominated.
Fair Value Inputs, Assets, Quantitative Information	'
	The following table presents the unobservable inputs for Level 3 fair value measurements as of March 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		50% to 98%			50% to 98%			—			—
	Equity and Fixed Income Funds		-38% to 62%			-38% to 62%			—			—
	Interest Rates and Equity Funds		-31% to -14%			-31% to -14%			—			—
	Nonperformance risk		-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%
	Actuarial Assumptions:
	Benefit Utilization		85% to 100%		(2)	—			—			—
	Partial Withdrawals		0% to 10%			0% to 10%			—			—
	Lapses		0.08% to 40%		(3)	0.08% to 31%		(3)	0% to 10%		(3)	0% to 55%	(4)
	Policyholder Deposits(5)		—			—			—			0% to 60%	(4)
	Mortality		—		(6)	—		(6)	—			—
	(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, 31% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, we assume 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, 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			$	1			$	3.4		5.4
	60-69		5.6				1.9				7.5			1.2
	70+		4.4				1.1				5.5			0
			$	12.4			$	4			$	16.4		2.2
	-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. 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, 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%		$	6.2		0.08% to 5.5%
		Out of the Money		—			*	0.41% to 12%		2.5			0.36% to 11%
	After Surrender Charge Period
		In the Money**		$	—		*	2.5% to 21%		$	6.2		1.5% to 21%
		Out of the Money		0.1				12% to 31%		2.2			6.9% to 40%
	* 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."
	(4)	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	%		0-30%		0-15%		0-55%		0-15%
	Stabilizer with Recordkeeping Agreements	12	%		0-55%		0-25%		0-60%		0-30%
	Aggregate of all plans	100	%		0-55%		0-25%		0-60%		0-30%
	(5)	Measured as a percentage of assets under management or assets under administration.
	(6)	The mortality rate is based on the Annuity 2000 Basic table with mortality improvements.
	The following table presents the unobservable inputs for Level 3 fair value measurements as of December 31, 2013:
			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 8.0%
	Correlations between:
	Equity Funds		50% to 98%			50% to 98%			—			—
	Equity and Fixed Income Funds		-33% to 62%			-33% to 62%			—			—
	Interest Rates and Equity Funds		-30% to -14%			-30% to -14%			—			—
	Nonperformance risk		-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%			-0.1% to 0.79%
	Actuarial Assumptions:
	Benefit Utilization		85% to 100%		(2)	—			—			—
	Partial Withdrawals		0% to 10%			0% to 10%			—			—
	Lapses		0.08% to 40%		(3)	0.08% to 31%		(3)	0% to 10%		(3)	0% to 55%	(4)
	Policyholder Deposits(5)		—			—			—			0% to 60%	(4)
	Mortality		—		(6)	—		(6)	—			—
	(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, 30% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, we assume 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, 2013 (account value amounts are in $ billions).
			Account Values
	Attained Age Group		In the Money				Out of the Money				Total			Average Expected Delay (Years)
	< 60		$	2.1			$	1.4			$	3.5		5.4
60-69		5.1				2.6				7.7			1.4
70+		4				1.3				5.3			0	*
		$	11.2			$	5.3			$	16.5		2.3
* Less than 0.1
-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. 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, 2013 (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%		$	5.7		0.08% to 5.5%
	Out of the Money		—			*	0.41% to 12%		3.3			0.36% to 11%
After Surrender Charge Period
	In the Money**		$	—		*	2.5% to 21%		$	5.6		1.5% to 21%
	Out of the Money		0.1				12% to 31%		2.8			6.9% to 40%
* 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."
(4)	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	%		0-30%		0-15%		0-55%		0-15%
Stabilizer with Recordkeeping Agreements	12	%		0-55%		0-25%		0-60%		0-30%
Aggregate of all plans	100	%		0-55%		0-25%		0-60%		0-30%
(5)	Measured as a percentage of assets under management or assets under administration.
(6)	The mortality rate is based on the Annuity 2000 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, 2014								December 31, 2013
		Carrying				Fair				Carrying			Fair
		Value				Value				Value			Value
	Assets:
	Fixed maturities, including securities pledged	$	74,803.10			$	74,803.10			$	72,718.80		$	72,718.80
	Equity securities, available-for-sale	276.6				276.6				314.4			314.4
	Mortgage loans on real estate	9,258.10				9,336.90				9,312.20			9,404.70
	Policy loans	2,119.70				2,119.70				2,147.00			2,147.00
	Limited partnerships/corporations	218.9				218.9				236.4			236.4
	Cash, cash equivalents, short-term investments and short-term investments under securities loan agreements	4,104.60				4,104.60				4,441.80			4,441.80
	Derivatives	1,044.70				1,044.70				1,149.30			1,149.30
	Other investments	124.1				130.6				124.6			131.1
	Assets held in separate accounts	107,840.00				107,840.00				106,827.10			106,827.10
	Liabilities:
	Investment contract liabilities:
	Funding agreements without fixed maturities and deferred annuities(1)	49,732.60				54,566.80				49,418.40			53,713.80
	Funding agreements with fixed maturities and guaranteed investment contracts	2,332.00				2,310.50				2,692.30			2,663.90
	Supplementary contracts, immediate annuities and other	3,542.00				3,799.70				3,383.60			3,567.30
	Derivatives:
	Annuity product guarantees:
	FIA	1,808.00				1,808.00				1,736.70			1,736.70
	GMAB/GMWB/GMWBL	1,143.30				1,143.30				908.9			908.9
	Stabilizer and MCGs	18				18				—			—
	Other derivatives	1,013.50				1,013.50				1,351.80			1,351.80
	Long-term debt	3,515.00				3,824.90				3,514.70			3,717.80
	Embedded derivatives on reinsurance	95.9				95.9				79			79
	(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, 2014:
		Level 1				Level 2				Level 3			Fair Value Measurements
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	498.6			$	—			$	—		$	498.6
	Corporate loans, at fair value using the fair value option	—				5,465.70				25			5,490.70
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	71.4				—				—			71.4
	Limited partnerships/corporations, at fair value	—				629.9				2,752.50			3,382.40
	Total assets, at fair value	$	570			$	6,095.60			$	2,777.50		$	9,443.10
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—			$	—			$	5,525.50		$	5,525.50
	Total liabilities, at fair value	$	—			$	—			$	5,525.50		$	5,525.50
	The following table summarizes the fair value hierarchy levels of consolidated investment entities as of December 31, 2013:
		Level 1				Level 2				Level 3			Fair Value Measurements
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	642.5			$	—			$	—		$	642.5
	Corporate loans, at fair value using the fair value option	—				4,939.80				25.5			4,965.30
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	68.2				—				—			68.2
	Limited partnerships/corporations, at fair value	—				484.5				2,734.10			3,218.60
	Total assets, at fair value	$	710.7			$	5,424.30			$	2,759.60		$	8,894.60
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—			$	—			$	5,161.60		$	5,161.60
	Total liabilities, at fair value	$	—			$	—			$	5,161.60		$	5,161.60

Deferred_Policy_Acquisition_Co1

Deferred Policy Acquisition Costs and Value of Business Acquired (Tables)	3 Months Ended
	Mar. 31, 2014
Deferred Policy Acquisition Costs and Value of Business Acquired [Abstract]	'
Deferred Policy Acquisition Costs and Value of Business Acquired	'
	Activity within deferred policy acquisition costs ("DAC") and value of business acquired ("VOBA") was as follows for the periods indicated:
		DAC			VOBA			Total
	Balance at 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 at March 31, 2014	$	4,013.10		$	847.7		$	4,860.80
		DAC			VOBA			Total
	Balance at January 1, 2013	$	3,221.60		$	434.7		$	3,656.30
	Deferrals of commissions and expenses	104.5			3.3			107.8
	Amortization:
	Amortization	(174.8		)	(36.6		)	(211.4		)
	Interest accrued(1)	58.4			22.5			80.9
	Net amortization included in Condensed Consolidated Statements of Operations	(116.4		)	(14.1		)	(130.5		)
	Change in unrealized capital gains/losses on available-for-sale securities	262			124			386
	Balance at March 31, 2013	$	3,471.70		$	547.9		$	4,019.60
	(1)Interest accrued at the following rates for DAC: 0.6% to 7.4% during 2014 and 1.7% to 7.4% during 2013. Interest accrued at the following rates for VOBA: 4.1% to 7.5% during 2014 and 3.0% to 7.5% during 2013.

ShareBased_Incentive_Compensat1

Share-Based Incentive Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2014
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 Plan, Director Plan, Phantom Plan and ING Group share-based compensation plan for the periods indicated:
		Three Months Ended March 31,
		2014				2013
	RSUs(1)	$	7			$	4.8
	RSUs - Deal incentive awards	5.6				—
	PSU awards(1)	19.2				0.9
	Stock options(2)	—				0.8
	Phantom Plan	0.3				—
	Share-based compensation(3)	$	32.1			$	6.5
	(1) This table includes compensation costs of $1.8 and $10.6 with respect to ING Group RSUs and PSU awards, respectively, for the three months ended March 31, 2014. For the three months ended March 31, 2013, all share-based compensation costs are related to the ING Group equity-based compensation plans.
	(2) All compensation costs recognized during the three months ended March 31, 2013 represents the associated portion with ING Group stock options held by the Company's employees.
	(3) The Company recognized no income tax benefit due to recognized valuation allowances for all periods presented. See Note 9. Income Taxes 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 Plan for the period indicated:
		RSUs						RSUs - Deal Incentive Awards(1)					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 at December 31, 2013	1.6			$	19.15		0.8			$	19.5	0.5			$	28.06
	Adjustment for PSU performance factor	N/A			N/A			N/A			N/A		0.3			28.06
	Granted	1.8			37.01			—			—		0.7			36.98
	Vested	(0.1	)		19.29			(0.8	)	(2)	19.5		(0.8	)		28.06
	Forfeited	—		*	—			—		*	—		—		*	—
	Outstanding at March 31, 2014	3.3			$	28.66		—			$	—	0.7			$	36.86
	* Less than 0.1.
	(1) Excludes 273,504 RSUs granted in 2013 that proportionally vest upon sales of Company stock by ING Group.
	(2) As of March 31, 2014, these vested shares have not yet been issued.

Shareholders_Equity_and_Earnin1

Shareholders' Equity and Earnings Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2014
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
		2014							2013
	(shares in millions)	Issued			Held in Treasury		Outstanding		Issued	Held in Treasury	Outstanding
	Common shares, balance at January 1	261.8			0.1		261.7		230.1	0.1	230
	Common shares acquired - share buyback	—			7.5		(7.5	)	—	—	—
	Share-based compensation programs	0.8			0.3		0.5		—	—	—
	Common shares, balance at March 31	262.6			7.9		254.7		230.1	0.1	230
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 share and per share data)		Three Months Ended March 31,
	Earnings		2014			2013
	Net income (loss) available to common shareholders:
	Net income (loss)		$	271.6		$	(225.5	)
	Less: Net income (loss) attributable to noncontrolling interest		13.5			(13.5		)
	Net income (loss) available to common shareholders		$	258.1		$	(212.0	)
	Weighted-average common shares outstanding
	Basic		261.1			230
	Dilutive Effects:
	RSUs		1			—
	RSUs - Deal incentive awards		0.8			—
	PSU awards		0.6			—
	Diluted		263.5			230
	Net income (loss) per common share
	Basic		$	0.99		$	(0.92	)
	Diluted		0.98			(0.92		)

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Schedule of Accumulated Other Comprehensive Income	'
	Shareholders' equity included the following components of Accumulated Other Comprehensive Income ("AOCI") as of the dates indicated:
		March 31,
		2014				2013
	Fixed maturities, net of OTTI	$	4,759.70			$	7,067.20
	Equity securities, available-for-sale	31.8				35.8
	Derivatives	158				201.5
	DAC/VOBA adjustment on available-for-sale securities	(1,514.7		)		(2,397.6		)
	Sales inducements adjustment on available-for-sale securities	(74.8		)		(119.0		)
	Other	(28.0		)		(28.8		)
	Unrealized capital gains (losses), before tax	3,332.00				4,759.10
	Deferred income tax asset (liability)	(802.7		)		(1,363.4		)
	Net unrealized capital gains (losses)	2,529.30				3,395.70
	Pension and other postretirement benefits liability, net of tax	48.2				57.1
	AOCI	$	2,577.50			$	3,452.80
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, 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 Statements 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 Statements 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 Statements 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 Note 5. Deferred Policy Acquisition Costs and Value of Business Acquired to these Condensed Consolidated Financial Statements for additional information.
	(2) See Note 3. Derivative Financial Instruments to these Condensed Consolidated Financial Statements for additional information.
		Three Months Ended March 31, 2013
		Before-Tax Amount				Income Tax			After-Tax Amount
	Available-for-sale securities:
	Fixed maturities	$	(792.1	)		$	274.4		$	(517.7	)
	Equity securities	(6.3		)		2.2			(4.1		)
	Other	11.6				(4.1		)	7.5
	OTTI	10.9				(3.8		)	7.1
	Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	(14.6		)		5.1			(9.5		)
	DAC/VOBA	386			(1)	(135.1		)	250.9
	Sales inducements	28.4				(9.9		)	18.5
	Change in unrealized gains/losses on available-for-sale securities	(376.1		)		128.8			(247.3		)
	Derivatives:
	Derivatives	(12.7		)	(2)	4.5			(8.2		)
	Adjustments related to effective cash flow hedges for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	(0.2		)		0.1			(0.1		)
	Change in unrealized gains/losses on derivatives	(12.9		)		4.6			(8.3		)
	Pension and other postretirement benefits liability:
	Amortization of prior service cost recognized in Operating expenses in the Condensed Consolidated Statements of Operations	(3.5		)		1.2			(2.3		)
	Change in pension and other postretirement benefits liability	(3.5		)		1.2			(2.3		)
	Change in Other comprehensive income (loss)	$	(392.5	)		$	134.6		$	(257.9	)
	(1) See Note 5. Deferred Policy Acquisition Costs and Value of Business Acquired to these Condensed Consolidated Financial Statements for additional information.
	(2) See Note 3. Derivative Financial Instruments to these Condensed Consolidated Financial Statements for additional information.

Income_Taxes_Tables

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2014
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:
		Three Months Ended March 31,
		2014			2013
	Income (loss) before income taxes	$	302.3		$	(214.3	)
	Tax rate	35		%	35		%
	Income tax expense (benefit) at federal statutory rate	105.8			(75.0		)
	Tax effect of:
	Valuation allowance	(53.0		)	104.2
	Dividend received deduction	(25.8		)	(21.9		)
	Audit settlement	(1.1		)	(2.1		)
	State tax expense (benefit)	6.5			4.1
	Noncontrolling interest	(4.7		)	4.7
	Tax credits	—			(4.6		)
	Non-deductible expenses	0.4			4.3
	Other	2.6			(2.5		)
	Income tax expense (benefit)	$	30.7		$	11.2

Financing_Agreements_Tables

Financing Agreements (Tables)	3 Months Ended
	Mar. 31, 2014
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, 2014 and December 31, 2013:
		Maturity	March 31, 2014			December 31, 2013
	7.25% Lion Connecticut Holdings, Inc. debentures due 2023(1)	8/15/23	$	158.7		$	158.6
	7.63% Lion Connecticut Holdings, Inc. debentures due 2026(1)	8/15/26	232.2			232.1
	8.42% Equitable of Iowa Companies Capital Trust II notes due 2027	4/1/27	13.8			13.8
	6.97% Lion Connecticut 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	998.6			998.5
	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		3,515.00			3,514.70
	Less: Current portion of long-term debt		—			—
	Total		$	3,515.00		$	3,514.70
	(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, 2014:
		Secured/ Unsecured	Committed/ Uncommitted		Expiration	Capacity		Utilization		Unused Commitment
	Obligor / Applicant
	Voya Financial, Inc.	Unsecured	Committed		2/14/18	$	3,000.00	$	829.9	$	2,170.10
	Security Life of Denver International Limited	Unsecured	Committed		1/24/18	150		147		3
	Voya Financial, Inc./ Langhorne I, LLC	Unsecured	Committed		1/15/19	500		—		500
	Voya Financial, Inc./ Security Life of Denver International Limited	Unsecured	Committed		11/9/21	750		750		—
	Security Life of Denver International Limited	Unsecured	Committed		10/29/20	1,125.00		631.6		493.4
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/27/22	750		750		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/29/23	250		250		—
	ReliaStar Life Insurance Company	Secured	Committed		Conditional	255		255		—
	Voya Financial, Inc. / Security Life of Denver International Limited	Unsecured	Committed		12/31/25	475		475		—
	Voya Financial, Inc.	Unsecured	Uncommitted		Various	1.7		1.7		—
	Voya Financial, Inc.	Secured	Uncommitted		Various	10		4.7		—
	Voya Financial, Inc. / Roaring River II LLC	Unsecured	Committed		12/31/21	995		588		407
	Voya Financial, Inc. / Roaring River III LLC	Unsecured	Committed		6/30/22	1,151.20		630		521.2
	Voya Financial, Inc./ Roaring River IV LLC	Unsecured	Committed		12/31/28	565		287		278
	Total					$	9,977.90	$	5,599.90	$	4,372.70
	Secured facilities					265		259.7		—
	Unsecured and uncommitted					1.7		1.7		—
	Unsecured and committed					9,711.20		5,338.50		4,372.70
	Total					$	9,977.90	$	5,599.90	$	4,372.70
	ING Bank					$	1,275.00	$	673.1	$	601.9

Commitments_and_Contingencies_

Commitments and Contingencies Commitments (Tables)	3 Months Ended
	Mar. 31, 2014
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, 2014		December 31, 2013
	Fixed maturity collateral pledged to FHLB	$	2,365.60	$	2,333.40
	FHLB restricted stock(1)	99		99.1
	Other fixed maturities-state deposits	257.5		251
	Securities pledged(2)	1,271.30		1,465.70
	Total restricted assets	$	3,993.40	$	4,149.20
	(1) Included in Other investments in the Condensed Consolidated Balance Sheets.
	(2) Includes the fair value of loaned securities of $449.4 and $435.4 as of March 31, 2014 and December 31, 2013, respectively, which is included in Securities pledged on the Condensed Consolidated Balance Sheets. In addition, as of March 31, 2014 and December 31, 2013, the Company delivered securities as collateral of $821.9 and $1.0 billion, respectively, which was included in Securities pledged in the Condensed Consolidated Balance Sheets.

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Schedule of Related Party Transactions	'
	The following tables summarize income and expense from transactions with related parties for the periods indicated:
		Three Months Ended March 31,
		2014					2013
		Income			Expense		Income			Expense
	NN Group(1)	$	0.6		$	0.1	$	0.4		$	3.3
	ING Group	5.6			3.5		4.2			5
	ING Bank(1)	(0.5		)	6.6		(0.4		)	18.4
	Other	5.3			3.4		3.6			3.7
	Total	$	11		$	13.6	$	7.8		$	30.4
	(1) See "Derivatives" section below.
	Assets and liabilities from transactions with related parties as of the dates indicated are shown in the following table:
		March 31, 2014					December 31, 2013
		Assets			Liabilities		Assets			Liabilities
	NN Group	$	0.5		$	0.1	$	0.5		$	0.2
	ING Group	9			0.9		1.3			0.9
	ING Bank	11.1			3.2		13.8			5.8
	Other	2.4			1.6		2.6			2
	Total	$	23		$	5.8	$	18.2		$	8.9

Consolidated_Investment_Entiti1

Consolidated Investment Entities (Tables)	3 Months Ended
	Mar. 31, 2014
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, 2014			December 31, 2013
	Assets of Consolidated Investment Entities
	VIEs - CLO entities:
	Cash and cash equivalents	$	498.6		$	642.5
	Corporate loans, at fair value using the fair value option	5,490.70			4,965.30
	Other assets	84.7			83.1
	Total CLO entities	6,074.00			5,690.90
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	71.4			68.2
	Limited partnerships/corporations, at fair value	3,382.40			3,218.60
	Other assets	23.7			21.7
	Total investment funds	3,477.50			3,308.50
	Total assets of consolidated investment entities	$	9,551.50		$	8,999.40
	Liabilities of Consolidated Investment Entities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	5,525.50		$	5,161.60
	Other liabilities	489.4			468
	Total CLO entities	6,014.90			5,629.60
	VOEs - Private equity funds and single strategy hedge funds:
	Other liabilities	478.1			435.3
	Total investment funds	478.1			435.3
	Total liabilities of consolidated investment entities	$	6,493.00		$	6,064.90
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, 2014
	Assets:
	CLO Investments		$	25		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
	Liabilities:
	CLO Notes		$	5,525.50		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
			Fair Value			Valuation Technique		Unobservable Inputs
	December 31, 2013
	Assets:
	CLO Investments		$	25.5		Discounted Cash Flow		Default Rate
								Recovery Rate
								Prepayment Rate
								Discount Margin
	Liabilities:
	CLO Notes		$	5,161.60		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; however, if an increase in the expected default rates does not have a subsequent change in the discount margin used to value the CLO investments and CLO notes, then an increase in default rate would potentially increase the value of the CLO investments and CLO notes as the expected weighted average life ("WAL") of the CLO investments and CLO notes would decrease.
	•	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 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.
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, 2014							December 31, 2013
		Carrying			Fair				Carrying		Fair
		Value			Value				Value		Value
	Assets:
	Fixed maturities, including securities pledged	$	74,803.10		$	74,803.10			$	72,718.80	$	72,718.80
	Equity securities, available-for-sale	276.6			276.6				314.4		314.4
	Mortgage loans on real estate	9,258.10			9,336.90				9,312.20		9,404.70
	Policy loans	2,119.70			2,119.70				2,147.00		2,147.00
	Limited partnerships/corporations	218.9			218.9				236.4		236.4
	Cash, cash equivalents, short-term investments and short-term investments under securities loan agreements	4,104.60			4,104.60				4,441.80		4,441.80
	Derivatives	1,044.70			1,044.70				1,149.30		1,149.30
	Other investments	124.1			130.6				124.6		131.1
	Assets held in separate accounts	107,840.00			107,840.00				106,827.10		106,827.10
	Liabilities:
	Investment contract liabilities:
	Funding agreements without fixed maturities and deferred annuities(1)	49,732.60			54,566.80				49,418.40		53,713.80
	Funding agreements with fixed maturities and guaranteed investment contracts	2,332.00			2,310.50				2,692.30		2,663.90
	Supplementary contracts, immediate annuities and other	3,542.00			3,799.70				3,383.60		3,567.30
	Derivatives:
	Annuity product guarantees:
	FIA	1,808.00			1,808.00				1,736.70		1,736.70
	GMAB/GMWB/GMWBL	1,143.30			1,143.30				908.9		908.9
	Stabilizer and MCGs	18			18				—		—
	Other derivatives	1,013.50			1,013.50				1,351.80		1,351.80
	Long-term debt	3,515.00			3,824.90				3,514.70		3,717.80
	Embedded derivatives on reinsurance	95.9			95.9				79		79
	(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, 2014:
		Level 1			Level 2				Level 3		Fair Value Measurements
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	498.6		$	—			$	—	$	498.6
	Corporate loans, at fair value using the fair value option	—			5,465.70				25		5,490.70
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	71.4			—				—		71.4
	Limited partnerships/corporations, at fair value	—			629.9				2,752.50		3,382.40
	Total assets, at fair value	$	570		$	6,095.60			$	2,777.50	$	9,443.10
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—		$	—			$	5,525.50	$	5,525.50
	Total liabilities, at fair value	$	—		$	—			$	5,525.50	$	5,525.50
	The following table summarizes the fair value hierarchy levels of consolidated investment entities as of December 31, 2013:
		Level 1			Level 2				Level 3		Fair Value Measurements
	Assets
	VIEs - CLO entities:
	Cash and cash equivalents	$	642.5		$	—			$	—	$	642.5
	Corporate loans, at fair value using the fair value option	—			4,939.80				25.5		4,965.30
	VOEs - Private equity funds and single strategy hedge funds:
	Cash and cash equivalents	68.2			—				—		68.2
	Limited partnerships/corporations, at fair value	—			484.5				2,734.10		3,218.60
	Total assets, at fair value	$	710.7		$	5,424.30			$	2,759.60	$	8,894.60
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	—		$	—			$	5,161.60	$	5,161.60
	Total liabilities, at fair value	$	—		$	—			$	5,161.60	$	5,161.60
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, 2014 is presented in the table below:
		Fair Value			Gains (Losses)				Purchases		Sales			Transfer in to Level 3		Transfer out of Level 3		Fair Value
		as of January 1			Included in the Condensed Consolidated													as of March 31
					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
	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, 2013 is presented in the table below:
		Fair Value			Gains (Losses)				Purchases		Sales			Transfer in to Level 3		Transfer out of Level 3		Fair Value
		as of January 1			Included in the Condensed Consolidated													as of March 31
					Statement of Operations
	Assets
	VIEs - CLO entities:
	Corporate loans, at fair value using the fair value option	$	—		$	—			$	—	$	—		$	—	$	—	$	—
	VOEs - Private equity funds and single strategy hedge funds:
	Limited partnerships/corporations, at fair value	2,931.20			(15.8		)		65.9		(0.6		)	—		—		2,980.70
	Total assets, at fair value	$	2,931.20		$	(15.8	)		$	65.9	$	(0.6	)	$	—	$	—	$	2,980.70
	Liabilities
	VIEs - CLO entities:
	CLO notes, at fair value using the fair value option	$	3,829.40		$	6.7			$	612.9	$	(0.9	)	$	—	$	—	$	4,448.10
	Total liabilities, at fair value	$	3,829.40		$	6.7			$	612.9	$	(0.9	)	$	—	$	—	$	4,448.10
Maximum Exposure to Loss	'
	The Company determines its maximum exposure to loss to be: (i) the amount invested in the debt or equity of the VIE and (ii) other commitments and guarantees to the VIE.
		March 31, 2014			December 31, 2013
	Carrying amount	$	—		$	—
	Maximum exposure to loss	—			—
	Assets of nonconsolidated investment entities	1,472.90			1,640.40
	Liabilities of nonconsolidated investment entities	1,497.90			1,639.00

Segments_Tables

Segments (Tables)	3 Months Ended
	Mar. 31, 2014
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,
		2014			2013
	Retirement Solutions:
	Retirement	$	114.9		$	137.8
	Annuities	54.8			54.3
	Investment Management	49.8			30.1
	Insurance Solutions:
	Individual Life	31.1			50.8
	Employee Benefits	16.9			12.4
	Total Ongoing Businesses	267.5			285.4
	Corporate	(37.3		)	(50.1		)
	Closed Blocks:
	Closed Block Institutional Spread Products	5.4			22.1
	Closed Block Other	(4.5		)	(0.7		)
	Closed Blocks	0.9			21.4
	Total operating earnings before income taxes	231.1			256.7
	Adjustments:
	Closed Block Variable Annuity	20.2			(477.1		)
	Net investment gains (losses) and related charges and adjustments	57.6			41.8
	Net guaranteed benefit hedging gains (losses) and related charges and adjustments	6.4			3.1
	Loss related to businesses exited through reinsurance or divestment	(10.5		)	(16.9		)
	Income (loss) attributable to noncontrolling interests	13.5			(13.5		)
	Other adjustments to operating income	(16.0		)	(8.4		)
	Income (loss) before income taxes	$	302.3		$	(214.3	)
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,
		2014			2013
	Retirement Solutions:
	Retirement	$	598.5		$	583.2
	Annuities	354.4			307.6
	Investment Management	160.5			131.9
	Insurance Solutions:
	Individual Life	692.2			687.1
	Employee Benefits	338.9			318.1
	Total Ongoing Businesses	2,144.50			2,027.90
	Corporate	25.3			17.1
	Closed Blocks:
	Closed Block Institutional Spread Products	17.6			38.3
	Closed Block Other	8			7.2
	Closed Blocks	25.6			45.5
	Total operating revenues	2,195.40			2,090.50
	Adjustments:
	Closed Block Variable Annuity	284.6			(444.0		)
	Net realized investment gains (losses) and related charges and adjustments	49.6			30.4
	Gain (loss) on change in fair value of derivatives related to guaranteed benefits	(23.9		)	20.6
	Revenues related to businesses exited through reinsurance or divestment	19			(12.1		)
	Revenues (loss) attributable to noncontrolling interests	60.8			40.3
	Other adjustments to operating revenues	85.4			92.9
	Total revenues	$	2,670.90		$	1,818.60
Summary of Financial Information for Segments	'
	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,
		2014			2013
	Investment management intersegment revenues	$	39.3		$	39.3
	The summary below presents Total assets for the Company’s segments as of the dates indicated:
		March 31, 2014			December 31, 2013
	Retirement Solutions:
	Retirement	$	94,654.80		$	92,336.70
	Annuities	26,748.30			26,528.30
	Investment Management	391.9			463.3
	Insurance Solutions:
	Individual Life	25,920.80			25,592.20
	Employee Benefits	2,559.70			2,518.50
	Total Ongoing Businesses	150,275.50			147,439.00
	Corporate	4,566.80			4,802.80
	Closed Blocks:
	Closed Block Variable Annuity	49,451.60			49,483.50
	Closed Block Institutional Spread Products	2,711.30			3,390.10
	Closed Block Other	7,634.50			7,586.50
	Closed Blocks	59,797.40			60,460.10
	Total assets of segments	214,639.70			212,701.90
	Noncontrolling interest	8,871.00			8,321.30
	Total assets	$	223,510.70		$	221,023.20

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	3 Months Ended
	Mar. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Schedule of Condensed Consolidating Balance Sheets	'
	Condensed Consolidating Balance Sheet
	March 31, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Assets:
	Investments:
	Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	70,465.10		$	(15.4	)	$	70,449.70
	Fixed maturities, at fair value using the fair value option	—			—			3,082.10			—			3,082.10
	Equity securities, available-for-sale, at fair value	80.9			4.4			191.3			—			276.6
	Short-term investments	21			—			1,025.20			—			1,046.20
	Mortgage loans on real estate, net of valuation allowance	—			—			9,258.10			—			9,258.10
	Policy loans	—			—			2,119.70			—			2,119.70
	Limited partnerships/corporations	—			—			218.9			—			218.9
	Derivatives	66.9			—			1,155.10			(177.3		)	1,044.70
	Investments in subsidiaries	16,071.50			13,215.80			—			(29,287.3		)	—
	Other investments	—			0.2			123.9			—			124.1
	Securities pledged	—			—			1,271.30			—			1,271.30
	Total investments	16,240.30			13,220.40			88,910.70			(29,480.0		)	88,891.40
	Cash and cash equivalents	441.5			1.5			2,056.80			—			2,499.80
	Short-term investments under securities loan agreements, including collateral delivered	30.7			—			548			(20.1		)	558.6
	Accrued investment income	—			—			935.6			—			935.6
	Reinsurance recoverable	—			—			6,785.80			—			6,785.80
	Deferred policy acquisition costs and Value of business acquired	—			—			4,860.80			—			4,860.80
	Sales inducements to contract holders	—			—			258.6			—			258.6
	Goodwill and other intangible assets	—			—			312.5			—			312.5
	Loans to subsidiaries and affiliates	370			0.1			180.6			(550.7		)	—
	Due from subsidiaries and affiliates	15.5			1			15.1			(31.6		)	—
	Other assets	57.4			—			959.4			(0.7		)	1,016.10
	Assets related to consolidated investment entities:
	Limited partnerships/corporations, at fair value	—			—			3,382.40			—			3,382.40
	Cash and cash equivalents	—			—			570			—			570
	Corporate loans, at fair value using the fair value option	—			—			5,490.70			—			5,490.70
	Other assets	—			—			108.4			—			108.4
	Assets held in separate accounts	—			—			107,840.00			—			107,840.00
	Total assets	$	17,155.40		$	13,223.00		$	223,215.40		$	(30,083.1	)	$	223,510.70
	Condensed Consolidating Balance Sheet
	March 31, 2014
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Liabilities and Shareholders' Equity:
	Future policy benefits	$	—		$	—		$	14,532.60		$	—		$	14,532.60
	Contract owner account balances	—			—			69,723.50			—			69,723.50
	Payables under securities loan agreement, including collateral held	—			—			864.5			—			864.5
	Short-term debt with affiliates	180			260.5			109.5			(550.0		)	—
	Long-term debt	2,996.80			514.8			18.8			(15.4		)	3,515.00
	Funds held under reinsurance agreements	—			—			1,174.50			—			1,174.50
	Derivatives	110.4			—			1,080.40			(177.3		)	1,013.50
	Pension and other post-employment provisions	—			—			467.5			—			467.5
	Current income taxes	1.8			13.9			(12.2		)	—			3.5
	Deferred income taxes	(210.1		)	0.3			481.9			—			272.1
	Due to subsidiaries and affiliates	13.6			1.5			1.5			(16.6		)	—
	Other liabilities	61.4			5.5			1,212.60			(36.5		)	1,243.00
	Liabilities related to consolidated investment entities:
	Collateralized loan obligations notes, at fair value using the fair value option	—			—			5,525.50			—			5,525.50
	Other liabilities	—			—			967.5			—			967.5
	Liabilities related to separate accounts	—			—			107,840.00			—			107,840.00
	Total liabilities	3,153.90			796.5			203,988.10			(795.8		)	207,142.70
	Shareholders' equity:
	Total Voya Financial, Inc. shareholders' equity	14,001.50			12,426.50			16,860.80			(29,287.3		)	14,001.50
	Noncontrolling interest	—			—			2,366.50			—			2,366.50
	Total shareholders' equity	14,001.50			12,426.50			19,227.30			(29,287.3		)	16,368.00
	Total liabilities and shareholders' equity	$	17,155.40		$	13,223.00		$	223,215.40		$	(30,083.1	)	$	223,510.70
	Condensed Consolidating Balance Sheet
	December 31, 2013
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Assets:
Investments:
Fixed maturities, available-for-sale, at fair value	$	—		$	—		$	68,333.20		$	(15.4	)	$	68,317.80
Fixed maturities, at fair value using the fair value option	—			—			2,935.30			—			2,935.30
Equity securities, available-for-sale, at fair value	76.6			20.6			217.2			—			314.4
Short-term investments	—			—			1,048.10			—			1,048.10
Mortgage loans on real estate, net of valuation allowance	—			—			9,312.20			—			9,312.20
Policy loans	—			—			2,147.00			—			2,147.00
Limited partnerships/corporations	—			—			236.4			—			236.4
Derivatives	69.9			—			1,261.80			(182.4		)	1,149.30
Investments in subsidiaries	15,103.80			12,572.70			—			(27,676.5		)	—
Other investments	—			0.4			124.2			—			124.6
Securities pledged	—			—			1,465.70			—			1,465.70
Total investments	15,250.30			12,593.70			87,081.10			(27,874.3		)	87,050.80
Cash and cash equivalents	640.2			1.1			2,199.50			—			2,840.80
Short-term investments under securities loan agreements, including collateral delivered	30.7			—			542.3			(20.1		)	552.9
Accrued investment income	—			—			897.1			—			897.1
Reinsurance recoverable	—			—			6,702.20			—			6,702.20
Deferred policy acquisition costs and Value of business acquired	—			—			5,351.60			—			5,351.60
Sales inducements to contract holders	—			—			279			—			279
Deferred income taxes	204.4			—			(42.3		)	—			162.1
Goodwill and other intangible assets	—			—			323.7			—			323.7
Loans to subsidiaries and affiliates	211.3			—			0.3			(211.6		)	—
Due from subsidiaries and affiliates	26.9			0.6			1.7			(29.2		)	—
Other assets	43.4			—			995.1			(2.0		)	1,036.50
Assets related to consolidated investment entities:
Limited partnerships/corporations, at fair value	—			—			3,218.60			—			3,218.60
Cash and cash equivalents	—			—			710.7			—			710.7
Corporate loans, at fair value using the fair value option	—			—			4,965.30			—			4,965.30
Other assets	—			—			104.8			—			104.8
Assets held in separate accounts	—			—			106,827.10			—			106,827.10
Total assets	$	16,407.20		$	12,595.40		$	220,157.80		$	(28,137.2	)	$	221,023.20
Condensed Consolidating Balance Sheet
December 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Liabilities and Shareholders' Equity:
Future policy benefits	$	—		$	—		$	14,098.40		$	—		$	14,098.40
Contract owner account balances	—			—			69,908.30			—			69,908.30
Payables under securities loan agreement, including collateral held	—			—			769.4			—			769.4
Short-term debt with affiliates	—			125.4			85.9			(211.3		)	—
Long-term debt	2,996.70			514.7			18.7			(15.4		)	3,514.70
Funds held under reinsurance agreements	—			—			1,181.50			—			1,181.50
Derivatives	114			—			1,420.20			(182.4		)	1,351.80
Pension and other post-employment provisions	—			—			474.9			—			474.9
Current income taxes	(47.0		)	10.6			80.5			—			44.1
Due to subsidiaries and affiliates	0.2			1.5			12.5			(14.2		)	—
Other liabilities	71.1			14.4			1,226.00			(37.4		)	1,274.10
Liabilities related to consolidated investment entities:
Collateralized loan obligations notes, at fair value using the fair value option	—			—			5,161.60			—			5,161.60
Other liabilities	—			—			903.3			—			903.3
Liabilities related to separate accounts	—			—			106,827.10			—			106,827.10
Total liabilities	3,135.00			666.6			202,168.30			(460.7		)	205,509.20
Shareholders' equity:
Total Voya Financial, Inc. shareholders' equity	13,272.20			11,928.80			15,747.70			(27,676.5		)	13,272.20
Noncontrolling interest	—			—			2,241.80			—			2,241.80
Total shareholders' equity	13,272.20			11,928.80			17,989.50			(27,676.5		)	15,514.00
Total liabilities and shareholders' equity	$	16,407.20		$	12,595.40		$	220,157.80		$	(28,137.2	)	$	221,023.20
Schedule of Condensed Consolidating Statement of Operations	'
	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 (loss)	—			—			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 balance	—			—			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 Operations
	For the Three Months Ended March 31, 2013
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Revenues:
	Net investment income	$	25		$	0.1		$	1,174.30		$	(0.7	)	$	1,198.70
	Fee income	—			—			891.9			—			891.9
	Premiums	—			—			471.9			—			471.9
	Net realized gains (losses):
	Total other-than-temporary impairments	—			—			(11.6		)	—			(11.6		)
	Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	—			—			(0.6		)	—			(0.6		)
	Net other-than-temporary impairments recognized in earnings	—			—			(11.0		)	—			(11.0		)
	Other net realized capital gains (losses)	—			—			(863.8		)	—			(863.8		)
	Total net realized capital gains (losses)	—			—			(874.8		)	—			(874.8		)
	Other revenue	2.1			0.3			96.1			(2.9		)	95.6
	Income (loss) related to consolidated investment entities:
	Net investment income (loss)	—			—			44.2			—			44.2
	Changes in fair value related to collateralized loan obligations	—			—			(8.9		)	—			(8.9		)
	Total revenues	27.1			0.4			1,794.70			(3.6		)	1,818.60
	Benefits and expenses:
	Policyholder benefits	—			—			540.5			—			540.5
	Interest credited to contract owner account balance	—			—			520.9			—			520.9
	Operating expenses	2.7			—			759.3			(2.9		)	759.1
	Net amortization of deferred policy acquisition costs and value of business acquired	—			—			130.5			—			130.5
	Interest expense	27.4			15.5			2.2			(0.7		)	44.4
	Operating expenses related to consolidated investment entities:
	Interest expense	—			—			36.8			—			36.8
	Other expense	—			—			0.7			—			0.7
	Total benefits and expenses	30.1			15.5			1,990.90			(3.6		)	2,032.90
Income (loss) before income taxes	(3.0		)	(15.1		)	(196.2		)	—			(214.3		)
Income tax expense (benefit)	(2.0		)	(5.7		)	18.9			—			11.2
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	(1.0		)	(9.4		)	(215.1		)	—			(225.5		)
Equity in earnings (losses) of subsidiaries, net of tax	(211.0		)	(219.4		)	—			430.4			—
Net income (loss) including noncontrolling interest	(212.0		)	(228.8		)	(215.1		)	430.4			(225.5		)
Less: Net income (loss) attributable to noncontrolling interest	—			—			(13.5		)	—			(13.5		)
Net income (loss) available to Voya Financial, Inc.'s common shareholder	$	(212.0	)	$	(228.8	)	$	(201.6	)	$	430.4		$	(212.0	)
Schedule of Condensed Consolidating Statement of Comprehensive Income	'
	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 post-employment benefit 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 the noncontrolling interest	—			—			13.5			—			13.5
	Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	$	986.5		$	506.5		$	1,044.30		$	(1,550.8	)	$	986.5
	Condensed Consolidating Statement of Comprehensive Income
	For the Three Months Ended March 31, 2013
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Net income (loss) including noncontrolling interest	$	(212.0	)	$	(228.8	)	$	(215.1	)	$	430.4		$	(225.5	)
	Other comprehensive income (loss), before tax:
	Unrealized gains (losses) on securities	(399.9		)	(137.0		)	(397.8		)	534.8			(399.9		)
	Other-than-temporary impairments	10.9			6.9			10.9			(17.8		)	10.9
	Pension and other post-employment benefit liability	(3.5		)	(0.8		)	(3.4		)	4.2			(3.5		)
	Other comprehensive income (loss), before tax	(392.5		)	(130.9		)	(390.3		)	521.2			(392.5		)
	Income tax expense (benefit) related to items of other comprehensive income (loss)	(134.6		)	(44.9		)	(133.8		)	178.7			(134.6		)
	Other comprehensive income (loss), after tax	(257.9		)	(86.0		)	(256.5		)	342.5			(257.9		)
	Comprehensive income (loss)	(469.9		)	(314.8		)	(471.6		)	772.9			(483.4		)
	Less: Comprehensive income (loss) attributable to the noncontrolling interest	—			—			(13.5		)	—			(13.5		)
	Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholder	$	(469.9	)	$	(314.8	)	$	(458.1	)	$	772.9		$	(469.9	)
Schedule of Condensed Consolidating Statement of Cash Flows	'
	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
	Purchase of consolidated investment entities	—			—			(1,258.8		)	—			(1,258.8		)
	Maturity of intercompany loans issued to subsidiaries with maturities more than three months	0.6			—			—			(0.6		)	—
	Net (issuance) 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		)	—
	Dividends to parent	—			—			(26.0		)	26			—
	Return of capital contributions to parent	—			—			(75.0		)	75			—
	Contributions of capital from parent	—			—			156			(156.0		)	—
	Borrowings of consolidated investment entities	—			—			28.4			—			28.4
	Contributions from 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
	Condensed Consolidating Statement of Cash Flows
	For the Three Months Ended March 31, 2013
		Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
	Net cash provided by (used in) operating activities	$	152.3		$	(2.0	)	$	(163.7	)	$	(15.0	)	$	(28.4	)
	Cash Flows from Investing Activities:
	Proceeds from the sale, maturity, disposal or redemption of:
	Fixed maturities	—			—			4,455.80			—			4,455.80
	Equity securities, available-for-sale	3.2			12.4			12.8			—			28.4
	Mortgage loans on real estate	—			—			318.3			—			318.3
	Limited partnerships/corporations	—			—			18			—			18
	Acquisition of:
	Fixed maturities	—			—			(4,802.8		)	—			(4,802.8		)
	Equity securities, available-for-sale	(5.2		)	—			(4.2		)	—			(9.4		)
	Mortgage loans on real estate	—			—			(581.4		)	—			(581.4		)
Limited partnerships/corporations	—			—			(9.8		)	—			(9.8		)
Short-term investments, net	—			—			2,999.10			—			2,999.10
Policy loans, net	—			—			(4.1		)	—			(4.1		)
Derivatives, net	—			—			(1,089.6		)	—			(1,089.6		)
Other investments, net	—			—			11.8			—			11.8
Sales from consolidated investments entities	—			—			573.8			—			573.8
Purchase of consolidated investment entities	—			—			(613.8		)	—			(613.8		)
Net maturity (issuance) of short-term intercompany loans	(34.9		)	(10.5		)	(13.4		)	58.8			—
Collateral received (delivered), net	8.6			—			(369.1		)	—			(360.5		)
Purchases of fixed assets, net	—			—			(6.6		)	—			(6.6		)
Net cash provided by (used in) investing activities	(28.3		)	1.9			894.8			58.8			927.2
Condensed Consolidating Statement of Cash Flows
For the Three Months Ended March 31, 2013
	Parent Issuer			Subsidiary Guarantor			Non-Guarantor Subsidiaries			Consolidating Adjustments			Consolidated
Cash Flows from Financing Activities:
Deposits received for investment contracts	—			—			2,936.20			—			2,936.20
Maturities and withdrawals from investment contracts	—			—			(2,996.6		)	—			(2,996.6		)
Proceeds from issuance of debt with maturities of more than three months	1,000.30			—			0.3			—			1,000.60
Repayment of debt with maturities of more than three months	(945.3		)	—			(359.3		)	—			(1,304.6		)
Short-term debt, net	(169.7		)	—			—			—			(169.7		)
Debt issuance costs	(6.5		)	—			—			—			(6.5		)
Net (repayments of) proceeds from short-term intercompany loans	23.9			—			34.9			(58.8		)	—
Dividends to parent	—			—			(15.0		)	15			—
Contributions from participants in consolidated investment entities	—			—			642.7			—			642.7
Net cash provided by (used in) financing activities	(97.3		)	—			243.2			(43.8		)	102.1
Net increase (decrease) in cash and cash equivalents	26.7			(0.1		)	974.3			—			1,000.90
Cash and cash equivalents, beginning of period	357.5			0.4			1,428.90			—			1,786.80
Cash and cash equivalents, end of period	$	384.2		$	0.3		$	2,403.20		$	—		$	2,787.70

Business_Basis_of_Presentation2

Business, Basis of Presentation and Significant Accounting Policies (Details)	3 Months Ended	0 Months Ended
	Mar. 31, 2014	Mar. 31, 2014	Mar. 25, 2014	Oct. 29, 2013	7-May-13	7-May-13	Mar. 25, 2014	Oct. 29, 2013
	segments	ING U.S. Inc.	ING U.S. Inc.	ING U.S. Inc.	ING U.S. Inc.	ING Group	ING Group	ING Group
Schedule of Equity Transactions [Line Items]	'	'	'	'	'	'	'	'
Offering of shares by parent company and subsidiaries	'	'	30,475,000	37,950,000	30,769,230	44,201,773	'	'
Shares repurchased	'	250,000	7,255,853	'	'	'	'	'
Ownership by affiliate of parent company	'	'	'	'	'	'	43.00%	57.00%
Number of reportable segments	3	'	'	'	'	'	'	'
Number of operating segments	5	'	'	'	'	'	'	'

Investments_Fixed_Maturities_a

Investments - Fixed Maturities and Equity Securities (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Embedded Derivatives	$123.10	[1]	$126.50	[1]
OTTI	110.4	[2]	126	[2]
Securities pledged, Amortized Cost	1,230.30		1,457.90
Securities pledged, Gross Unrealized Capital Losses	1,271.30		1,465.70
Total equity securities, Amortized Cost	244.8		267.4
Equity securities, available-for-sale	276.6		314.4
Total fixed maturities and equity securities, Amortized Cost	68,934.80		68,236.50
Total fixed maturities and equity securities, Gross Unrealized Capital Gains	5,345.20		4,325.70
Total fixed maturities and equity securities, Gross Unrealized Capital Losses	594.7		1,121.20
Total fixed maturities and equity securities, Fair Value	73,808.40		71,567.50
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	41.50%		38.30%
U.S. Treasuries	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	4,991.60		5,094
Fixed maturities, Gross Unrealized Capital Gains	315.6		174
Fixed maturities, Gross Unrealized Capital Losses	44.1		86.8
Embedded Derivatives	0	[1]	0	[1]
Fixed maturities, including securities pledged	5,263.10		5,181.20
OTTI	0	[2]	0	[2]
U.S. government agencies and authorities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	610.6		598
Fixed maturities, Gross Unrealized Capital Gains	33.7		22.3
Fixed maturities, Gross Unrealized Capital Losses	0.2		1.4
Embedded Derivatives	0	[1]	0	[1]
Fixed maturities, including securities pledged	644.1		618.9
OTTI	0	[2]	0	[2]
State, municipalities and political subdivisions	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	276.5		272
Fixed maturities, Gross Unrealized Capital Gains	17.5		10.6
Fixed maturities, Gross Unrealized Capital Losses	0.4		1.5
Embedded Derivatives	0	[1]	0	[1]
Fixed maturities, including securities pledged	293.6		281.1
OTTI	0	[2]	0	[2]
U.S. corporate securities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	36,658.80		36,010.30
Fixed maturities, Gross Unrealized Capital Gains	2,876.30		2,174.50
Fixed maturities, Gross Unrealized Capital Losses	361.6		706.2
Embedded Derivatives	0	[1]	0	[1]
Fixed maturities, including securities pledged	39,173.50		37,478.60
OTTI	11.8	[2]	12.8	[2]
Foreign	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	15,746.20	[3]	15,661.40	[3]
Fixed maturities, Gross Unrealized Capital Gains	1,107.20	[3]	913.8	[3]
Fixed maturities, Gross Unrealized Capital Losses	112.8	[3]	218.7	[3]
Embedded Derivatives	0	[1],[3]	0	[1],[3]
Fixed maturities, including securities pledged	16,740.60	[3]	16,356.50	[3]
OTTI	0	[2],[3]	0	[2],[3]
Foreign securities government	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	886.3	[3]	1,044	[3]
Fixed maturities, Gross Unrealized Capital Gains	45	[3]	49.6	[3]
Fixed maturities, Gross Unrealized Capital Losses	24.1	[3]	42.2	[3]
Embedded Derivatives	0	[1],[3]	0	[1],[3]
Fixed maturities, including securities pledged	907.2	[3]	1,051.40	[3]
OTTI	0	[2],[3]	0	[2],[3]
Foreign securities other	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	14,859.90	[3]	14,617.40	[3]
Fixed maturities, Gross Unrealized Capital Gains	1,062.20	[3]	864.2	[3]
Fixed maturities, Gross Unrealized Capital Losses	88.7	[3]	176.5	[3]
Embedded Derivatives	0	[1],[3]	0	[1],[3]
Fixed maturities, including securities pledged	15,833.40	[3]	15,305.10	[3]
OTTI	0	[2],[3]	0	[2],[3]
Residential mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	6,374.40		6,480.30
Fixed maturities, Gross Unrealized Capital Gains	608		597.3
Fixed maturities, Gross Unrealized Capital Losses	52.8		80.4
Embedded Derivatives	123.1	[1]	126.5	[1]
Fixed maturities, including securities pledged	7,052.70		7,123.70
OTTI	93.6	[2]	103.6	[2]
Residential mortgage-backed securities, Agency	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	5,319.70		5,379.20
Fixed maturities, Gross Unrealized Capital Gains	432.7		431.1
Fixed maturities, Gross Unrealized Capital Losses	41.9		62.1
Embedded Derivatives	76.2	[1]	79.2	[1]
Fixed maturities, including securities pledged	5,786.70		5,827.40
OTTI	0.3	[2]	0.4	[2]
Residential mortgage-backed securities, Non-Agency	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	1,054.70		1,101.10
Fixed maturities, Gross Unrealized Capital Gains	175.3		166.2
Fixed maturities, Gross Unrealized Capital Losses	10.9		18.3
Embedded Derivatives	46.9	[1]	47.3	[1]
Fixed maturities, including securities pledged	1,266		1,296.30
OTTI	93.3	[2]	103.2	[2]
Commercial mortgage-backed securities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	3,472.80		3,427.90
Fixed maturities, Gross Unrealized Capital Gains	323.9		327.7
Fixed maturities, Gross Unrealized Capital Losses	0.6		3.5
Embedded Derivatives	0	[1]	0	[1]
Fixed maturities, including securities pledged	3,796.10		3,752.10
OTTI	0	[2]	4.4	[2]
Other asset-backed securities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	1,789.40		1,883.10
Fixed maturities, Gross Unrealized Capital Gains	81.4		81.6
Fixed maturities, Gross Unrealized Capital Losses	31.4		38
Embedded Derivatives	0	[1]	0	[1]
Fixed maturities, including securities pledged	1,839.40		1,926.70
OTTI	5	[2]	5.2	[2]
Fixed maturities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Fixed maturities, including securities pledged, Amortized Cost	69,920.30		69,427
Fixed maturities, Gross Unrealized Capital Gains	5,363.60		4,301.80
Fixed maturities, Gross Unrealized Capital Losses	603.9		1,136.50
Embedded Derivatives	123.1	[1]	126.5	[1]
Fixed maturities, including securities pledged	74,803.10		72,718.80
OTTI	110.4	[2]	126	[2]
Securities pledged, Amortized Cost	1,230.30		1,457.90
Securities pledged, Gross Unrealized Capital Gains	50.4		24.6
Securities pledged, Gross Unrealized Capital Losses	9.4		16.8
Securities pledged, Gross Unrealized Capital Losses	1,271.30		1,465.70
Total fixed maturities, less securities pledged, Amortized Cost	68,690		67,969.10
Total fixed maturities, less securities pledged, Gross Unrealized Capital Gains	5,313.20		4,277.20
Total fixed maturities, less securities pledged, Gross Unrealized Capital Losses	594.5		1,119.70
Total fixed maturities, less securities pledged, Fair Value	73,531.80		71,253.10
Common Stock	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Embedded Derivatives	0	[1]	0	[1]
OTTI	0	[2]	0	[2]
Total equity securities, Amortized Cost	194.3		214.3
Equity securities, Gross Unrealized Capital Gains	2.3		5.1
Equity securities, Gross Unrealized Capital Losses	0.2		0.9
Equity securities, available-for-sale	196.4		218.5
Preferred stock	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Embedded Derivatives	0	[1]	0	[1]
OTTI	0	[2]	0	[2]
Total equity securities, Amortized Cost	50.5		53.1
Equity securities, Gross Unrealized Capital Gains	29.7		43.4
Equity securities, Gross Unrealized Capital Losses	0		0.6
Equity securities, available-for-sale	80.2		95.9
Equity securities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Embedded Derivatives	0	[1]	0	[1]
OTTI	0	[2]	0	[2]
Total equity securities, Amortized Cost	244.8		267.4
Equity securities, Gross Unrealized Capital Gains	32		48.5
Equity securities, Gross Unrealized Capital Losses	0.2		1.5
Equity securities, available-for-sale	$276.60		$314.40
[1]	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.
[2]	Represents OTTI reported as a component of Other comprehensive income.
[3]	Primarily U.S. dollar denominated.

Investments_Debt_Maturities_De

Investments - Debt Maturities (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Mortgage-backed securities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Without single maturity date, Amortized Cost	$9,847.20	'
Without single maturity date, Fair Value	10,848.80	'
Other asset-backed securities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Without single maturity date, Amortized Cost	1,789.40	'
Without single maturity date, Fair Value	1,839.40	'
Fixed maturities, including securities pledged, Amortized Cost	1,789.40	1,883.10
Fixed maturities, including securities pledged	1,839.40	1,926.70
Fixed maturities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
One year or less, Amortized Cost	1,999.30	'
One year or less, Fair Value	2,032.50	'
After one year through five years, Amortized Cost	13,858.50	'
After one year through five years, Fair Value	14,748.50	'
After five years through ten years, Amortized Cost	21,329.90	'
After five years through ten years, Fair Value	22,070.10	'
After ten years, Amortized Cost	21,096	'
After ten years, Fair Value	23,263.80	'
Fixed maturities, including securities pledged, Amortized Cost	69,920.30	69,427
Fixed maturities, including securities pledged	$74,803.10	$72,718.80

Investments_Composition_of_US_

Investments - Composition of US and Foreign Corporate Securities (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Communications	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
U.S. and foreign securities, Amortized Cost	$3,966.90	$4,016.20
U.S. and foreign corporate securities, Gross Unrealized Capital Gains	403.4	293
U.S. and foreign corporate securities, Gross Unrealized Capital Losses	29.2	73.4
Fixed maturities, including securities pledged	4,341.10	4,235.80
Financial	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
U.S. and foreign securities, Amortized Cost	6,990.90	6,640.70
U.S. and foreign corporate securities, Gross Unrealized Capital Gains	675.5	566.6
U.S. and foreign corporate securities, Gross Unrealized Capital Losses	42.7	72.6
Fixed maturities, including securities pledged	7,623.70	7,134.70
Industrial and Other Companies	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
U.S. and foreign securities, Amortized Cost	29,959.30	29,303.10
U.S. and foreign corporate securities, Gross Unrealized Capital Gains	1,964.80	1,524.50
U.S. and foreign corporate securities, Gross Unrealized Capital Losses	293.2	564.5
Fixed maturities, including securities pledged	31,630.90	30,263.10
Utilities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
U.S. and foreign securities, Amortized Cost	9,165.50	9,200.60
U.S. and foreign corporate securities, Gross Unrealized Capital Gains	778.4	570
U.S. and foreign corporate securities, Gross Unrealized Capital Losses	70.8	142.2
Fixed maturities, including securities pledged	9,873.10	9,628.40
Transportation	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
U.S. and foreign securities, Amortized Cost	1,436.10	1,467.10
U.S. and foreign corporate securities, Gross Unrealized Capital Gains	116.4	84.6
U.S. and foreign corporate securities, Gross Unrealized Capital Losses	14.4	30
Fixed maturities, including securities pledged	1,538.10	1,521.70
U.S. and Foreign Corporate Securities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
U.S. and foreign securities, Amortized Cost	51,518.70	50,627.70
U.S. and foreign corporate securities, Gross Unrealized Capital Gains	3,938.50	3,038.70
U.S. and foreign corporate securities, Gross Unrealized Capital Losses	450.3	882.7
Fixed maturities, including securities pledged	$55,006.90	$52,783.70

Investments_Fixed_Maturities_a1

Investments - Fixed Maturities and Equity Securities, Repurchase Agreements and Securities Lending (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
		loan
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Financing Receivable, Loans in Foreclosure, Number	'	0
Required collateral, as a percentage of market value of loaned securities	102.00%	'
Payables under securities loan agreements, including collateral held	$864.50	$769.40
Securities pledged as collateral	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Fair value of loaned securities	449.4	435.4
Securities received as collateral	466.3	451
Cash collateral, included in Payables	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Payables under securities loan agreements, including collateral held	$466.30	$451
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	41.50%	38.30%

Investments_Unrealized_Capital

Investments - Unrealized Capital Losses (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	$3,586.40		$7,533
Six months or less below amortized cost, Unrealized Capital Loss	28.5		131.3
More than six months and twelve months or less below amortized cost, Fair Value	9,568		11,610.30
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	388.7		800
More than twelve months below amortized cost, Fair Value	2,134.10		1,726.30
More than twelve months below amortized cost, Unrealized Capital Loss	186.7		205.2
Total, Fair Value	15,288.50		20,869.60
Total Unrealized Capital Losses	603.9		1,136.50
Average market value of fixed maturities with unrealized capital losses aged more than twelve months	92.00%		89.40%
U.S. Treasuries	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	1,315.70		1,559.50
Six months or less below amortized cost, Unrealized Capital Loss	7.9		24.3
More than six months and twelve months or less below amortized cost, Fair Value	927.9		1,087.60
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	29.4		52.6
More than twelve months below amortized cost, Fair Value	45.1		41.9
More than twelve months below amortized cost, Unrealized Capital Loss	6.8		9.9
Total, Fair Value	2,288.70		2,689
Total Unrealized Capital Losses	44.1		86.8
U.S. government agencies and authorities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	6.8		9.5
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	57.5		55.9
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0.2		1.4
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	64.3		65.4
Total Unrealized Capital Losses	0.2		1.4
U.S. corporate, state and municipalities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	1,316.40		3,524.90
Six months or less below amortized cost, Unrealized Capital Loss	14.2		78.5
More than six months and twelve months or less below amortized cost, Fair Value	5,743.40		6,893.90
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	247.1		519.6
More than twelve months below amortized cost, Fair Value	1,112.80		821.9
More than twelve months below amortized cost, Unrealized Capital Loss	100.7		109.6
Total, Fair Value	8,172.60		11,240.70
Total Unrealized Capital Losses	362		707.7
Foreign	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	345.1		1,133.60
Six months or less below amortized cost, Unrealized Capital Loss	2.4		16
More than six months and twelve months or less below amortized cost, Fair Value	1,842.90		2,447.80
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	84.5		184.3
More than twelve months below amortized cost, Fair Value	295.9		179.1
More than twelve months below amortized cost, Unrealized Capital Loss	25.9		18.4
Total, Fair Value	2,483.90		3,760.50
Total Unrealized Capital Losses	112.8		218.7
Residential mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	427.1		919.1
Six months or less below amortized cost, Unrealized Capital Loss	2.7		8.3
More than six months and twelve months or less below amortized cost, Fair Value	950.4		1,019.60
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	27.1		40.6
More than twelve months below amortized cost, Fair Value	392.2		377.9
More than twelve months below amortized cost, Unrealized Capital Loss	23		31.5
Total, Fair Value	1,769.70		2,316.60
Total Unrealized Capital Losses	52.8		80.4
Commercial mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	28.6		235.8
Six months or less below amortized cost, Unrealized Capital Loss	0.6		3.3
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		6.2
More than twelve months below amortized cost, Unrealized Capital Loss	0		0.2
Total, Fair Value	28.6		242
Total Unrealized Capital Losses	0.6		3.5
Other asset-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Fair Value	146.7		150.6
Six months or less below amortized cost, Unrealized Capital Loss	0.7		0.9
More than six months and twelve months or less below amortized cost, Fair Value	45.9		105.5
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0.4		1.5
More than twelve months below amortized cost, Fair Value	288.1		299.3
More than twelve months below amortized cost, Unrealized Capital Loss	30.3		35.6
Total, Fair Value	480.7		555.4
Total Unrealized Capital Losses	$31.40		$38
[1]	* Less than $0.1

Investments_Unrealized_Capital1

Investments - Unrealized Capital Losses 1 (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Unrealized Capital Loss	$28.50		$131.30
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	388.7		800
More than twelve months below amortized cost, Unrealized Capital Loss	186.7		205.2
Total Unrealized Capital Losses	603.9		1,136.50
U.S. Treasuries	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Unrealized Capital Loss	7.9		24.3
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	29.4		52.6
More than twelve months below amortized cost, Unrealized Capital Loss	6.8		9.9
Total Unrealized Capital Losses	44.1		86.8
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	[1]	0	[1]
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0.2		1.4
More than twelve months below amortized cost, Unrealized Capital Loss	0		0
Total Unrealized Capital Losses	0.2		1.4
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	14.2		78.5
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	247.1		519.6
More than twelve months below amortized cost, Unrealized Capital Loss	100.7		109.6
Total Unrealized Capital Losses	362		707.7
Foreign	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Unrealized Capital Loss	2.4		16
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	84.5		184.3
More than twelve months below amortized cost, Unrealized Capital Loss	25.9		18.4
Total Unrealized Capital Losses	112.8		218.7
Residential mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Unrealized Capital Loss	2.7		8.3
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	27.1		40.6
More than twelve months below amortized cost, Unrealized Capital Loss	23		31.5
Total Unrealized Capital Losses	52.8		80.4
Commercial mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Unrealized Capital Loss	0.6		3.3
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		0.2
Total Unrealized Capital Losses	0.6		3.5
Other asset-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Six months or less below amortized cost, Unrealized Capital Loss	0.7		0.9
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	0.4		1.5
More than twelve months below amortized cost, Unrealized Capital Loss	30.3		35.6
Total Unrealized Capital Losses	31.4		38
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	3,892.30		7,883.30
Six months or less below amortized cost, Unrealized Capital Loss	69.1		166
Six months or less below amortized cost, Number of Securities	322		570
More than six months and twelve months or less below amortized cost, Amortized Cost	9,935.50		12,339.70
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	381.6		776.8
More than six months and twelve months or less below amortized cost, Number of Securities	622		798
More than twelve months below amortized cost, Amortized Cost	2,004.70		1,579.20
More than twelve months below amortized cost, Unrealized Capital Loss	136.9		144.5
More than twelve months below amortized cost, Number of Securities	338		302
Total Amortized Cost	15,832.50		21,802.20
Total Unrealized Capital Losses	587.6		1,087.30
Number of Securities	1,282		1,670
Fair value decline below amortized cost less than 20% | U.S. Treasuries	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	2,332.80		2,750.50
Total Unrealized Capital Losses	44.1		81.4
Number of Securities	28		32
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	64.5		66.8
Total Unrealized Capital Losses	0.2		1.4
Number of Securities	3		3
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	8,506		11,892.60
Total Unrealized Capital Losses	355.1		694.2
Number of Securities	520		744
Fair value decline below amortized cost less than 20% | Foreign	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	2,593.30		3,944.20
Total Unrealized Capital Losses	112		211
Number of Securities	210		300
Fair value decline below amortized cost less than 20% | Residential mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	1,814.60		2,361.40
Total Unrealized Capital Losses	49		70.2
Number of Securities	416		471
Fair value decline below amortized cost less than 20% | Commercial mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	29.2		245.5
Total Unrealized Capital Losses	0.6		3.5
Number of Securities	8		16
Fair value decline below amortized cost less than 20% | Other asset-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	492.1		541.2
Total Unrealized Capital Losses	26.6		25.6
Number of Securities	97		104
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	35.4		80.5
Six months or less below amortized cost, Unrealized Capital Loss	8.5		18.6
Six months or less below amortized cost, Number of Securities	9		20
More than six months and twelve months or less below amortized cost, Amortized Cost	12.9		67.6
More than six months and twelve months or less below amortized cost, Unrealized Capital Losses	4.1		16.7
More than six months and twelve months or less below amortized cost, Number of Securities	5		8
More than twelve months below amortized cost, Amortized Cost	11.6		55.8
More than twelve months below amortized cost, Unrealized Capital Loss	3.7		13.9
More than twelve months below amortized cost, Number of Securities	15		22
Total Amortized Cost	59.9		203.9
Total Unrealized Capital Losses	16.3		49.2
Number of Securities	29		50
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		25.3
Total Unrealized Capital Losses	0		5.4
Number of Securities	0		1
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% | U.S. corporate, state and municipalities	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	28.6		55.8
Total Unrealized Capital Losses	6.9		13.5
Number of Securities	3		5
Fair value decline below amortized cost greater than 20% | Foreign	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	3.4		35
Total Unrealized Capital Losses	0.8		7.7
Number of Securities	1		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	7.9		35.6
Total Unrealized Capital Losses	3.8		10.2
Number of Securities	15		25
Fair value decline below amortized cost greater than 20% | Commercial mortgage-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	0	[1]	0
Total Unrealized Capital Losses	0	[1]	0
Number of Securities	1		0
Fair value decline below amortized cost greater than 20% | Other asset-backed	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	20		52.2
Total Unrealized Capital Losses	$4.80		$12.40
Number of Securities	9		13
[1]	* Less than $0.1

Investments_Unrealized_Capital2

Investments - Unrealized Capital Losses 2 (Details) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Unrealized Capital Losses	603.9		1,136.50
Fair value decline below amortized cost less than 20%	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	15,832.50		21,802.20
Total Unrealized Capital Losses	587.6		1,087.30
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	1,605.80	[1]	2,008.90	[1]
Total Unrealized Capital Losses	39.3	[1]	57.9	[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	200.6	[1]	225.2	[1]
Total Unrealized Capital Losses	2.2	[1]	2.5	[1]
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	2,306.70	[1]	2,902.60	[1]
Total Unrealized Capital Losses	75.6	[1]	95.8	[1]
Fair value decline below amortized cost greater than 20%	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	59.9		203.9
Total Unrealized Capital Losses	16.3		49.2
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	4.5	[1]	11.3	[1]
Total Unrealized Capital Losses	2.6	[1]	4.2	[1]
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	2.1	[1]	2.1	[1]
Total Unrealized Capital Losses	0.5	[1]	0.5	[1]
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	27.9	[1]	87.8	[1]
Total Unrealized Capital Losses	8.6	[1]	22.6	[1]
Fixed Rate | Fair value decline below amortized cost less than 20%	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	1,317.30		1,723.70
Total Unrealized Capital Losses	36.3		50.5
Fixed Rate | Fair value decline below amortized cost greater than 20%	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	4.2		4.4
Total Unrealized Capital Losses	1.4		1.6
Floating Rate | Fair value decline below amortized cost less than 20%	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	989.4		1,178.90
Total Unrealized Capital Losses	39.3		45.3
Floating Rate | Fair value decline below amortized cost greater than 20%	'		'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'		'
Total Amortized Cost	23.7		83.4
Total Unrealized Capital Losses	7.2		21
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	387.3	[1]	407.1	[1]
Total Unrealized Capital Losses	27.8	[1]	27.6	[1]
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	17.9	[1]	47.7	[1]
Total Unrealized Capital Losses	4.4	[1]	11.1	[1]
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	20.6	[1]	43.9	[1]
Total Unrealized Capital Losses	0.7	[1]	1.2	[1]
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	[1]	0.8	[1]
Total Unrealized Capital Losses	0	[1]	0.2	[1]
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	34.1	[1]	90.4	[1]
Total Unrealized Capital Losses	1	[1]	1.9	[1]
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	[1]	3.9	[1]
Total Unrealized Capital Losses	0	[1]	0.8	[1]
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	58.3	[1]	127.1	[1]
Total Unrealized Capital Losses	4.6	[1]	4.7	[1]
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	3.4	[1]	22	[1]
Total Unrealized Capital Losses	1.1	[1]	5.8	[1]
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	38.9		75.7
Total Unrealized Capital Losses	4.2		2.9
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	2.6		36.4
Total Unrealized Capital Losses	0.6		8.3
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	80.5		156.8
Total Unrealized Capital Losses	5.1		8.6
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	7.1		24.1
Total Unrealized Capital Losses	1.6		5.7
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	99.9		151.3
Total Unrealized Capital Losses	9.1		8.4
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	4.8		5.9
Total Unrealized Capital Losses	1.2		1.7
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	281		284.7
Total Unrealized Capital Losses	15.7		15.5
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	6.8		8
Total Unrealized Capital Losses	2.1		2.2
[1]	For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.

Investments_Troubled_Debt_Rest

Investments - Troubled Debt Restructuring (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
	contract	contract
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	0	21
Amount of principal repaid on troubled debt restructurings	'	4.2
Troubled debt restructurings pre-modification carrying value	'	91
Cross-defaulted, cross-collateralized loans	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of troubled debt restructuring contracts	'	20

Investments_Mortgage_Loans_Det

Investments - Mortgage Loans (Details) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'		'
Financing Receivable, Recorded Investment, 1 to 30 Days Past Due	$0		$0
Maximum loan to value ratio generally allowed	75.00%		'
Commercial mortgage loans	9,261.50	[1]	9,316	[1]
Collective valuation allowance	-3.4		-3.8
Total net commercial mortgage loans	9,258.10		9,312.20
Impairments on mortgage loans	0		0
Financing Receivable, Recorded Investment, 31 to 90 Days Past Due	0		5.1
Financing Receivable, Recorded Investment, 91 to 180 Days Past Due	0		0
Financing Receivable, Recorded Investment, Equal to Greater than 181 Days Past Due	0		0
Financing Receivable, Recorded Investment, Past Due	$0		$5.10
[1]	Balances do not include allowance for mortgage loan credit losses.

Investments_Allowance_for_Loan

Investments - Allowance for Loan Losses (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'	'
Impaired Financing Receivable, Unpaid Principal Balance, Equal to or Greater than 90 Days Past Due	$0	$5.10
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	5.1
Collective valuation allowance for losses, beginning of period	3.8	3.9
Addition to/(release of) allowance for losses	-0.4	-0.1
Collective valuation allowance for losses, end of period	$3.40	$3.80

Investments_Impaired_Loans_Det

Investments - Impaired Loans (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	loan	loan
Investments, Debt and Equity Securities [Abstract]	'	'
Impaired loans with allowances for losses	$0	$0
Impaired loans without valuation allowances	94.2	94.3
Subtotal	94.2	94.3
Less: Allowances for losses on impaired loans	0	0
Impaired loans, net	94.2	94.3
Unpaid principal balance of impaired loans	96.6	96.7
Number of loans in arrears	0	1
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	$0	$5.10

Investments_Impaired_Loans_2_D

Investments - Impaired Loans 2 (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	loan	loan
Investments, Debt and Equity Securities [Abstract]	'	'
Troubled debt restructured loans	$86.60	$86.60
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	5.1
Loans in foreclosure, at amortized cost	0	0
Number of loans in arrears	0	1
Impaired Financing Receivable, Unpaid Principal Balance, Equal to or Greater than 90 Days Past Due	$0	$5.10

Investments_Impaired_Loans_3_D

Investments - Impaired Loans 3 (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'		'
Impaired loans, average investment during the period	$94.20	[1]	$16.90	[1]
Interest income recognized on impaired loans, on an accrual basis	1.3	[1]	0.2	[1]
Interest income recognized on impaired loans, on a cash basis	1	[1]	0.2	[1]
Interest income recognized on troubled debt restructured loans, on an accrual basis	$1.20		$0
[1]	Includes amounts for Troubled debt restructured loans.

Investments_Loans_by_Loan_to_V

Investments - Loans by Loan to Value (Details) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
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%		'
Total Commercial mortgage loans	$9,261.50	[1]	$9,316	[1]
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	1,604.30	[1]	1,782.60	[1]
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	2,484.60	[1]	2,390	[1]
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	4,708.80	[1]	4,668.30	[1]
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	445.1	[1]	455.8	[1]
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	$18.70	[1]	$19.30	[1]
[1]	Balances do not include allowance for mortgage loan credit losses.

Investments_Loans_by_Debt_Serv

Investments - Loans by Debt Service Coverage Ratio (Details) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
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%		'
Commercial mortgage loans secured by land or construction loans	$0.20	[1]	$0.20	[1]
Total Commercial mortgage loans	9,261.50	[1]	9,316	[1]
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	6,333.10	[1]	6,346.50	[1]
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	1,515.30	[1]	1,520.90	[1]
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	973.2	[1]	980.6	[1]
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	$439.70	[1]	$467.80	[1]
[1]	Balances do not include allowance for mortgage loan credit losses.

Investments_Loans_by_US_Region

Investments - Loans by U.S. Region (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	$9,261.50	[1]	$9,316	[1]
Loans by region percentage of total loans	100.00%	[1]	100.00%	[1]
Pacific	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	2,369.20	[1]	2,281.80	[1]
Loans by region percentage of total loans	25.60%	[1]	24.50%	[1]
South Atlantic	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	1,964.60	[1]	1,936	[1]
Loans by region percentage of total loans	21.20%	[1]	20.80%	[1]
Middle Atlantic	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	1,113.20	[1]	1,112	[1]
Loans by region percentage of total loans	12.00%	[1]	11.90%	[1]
West South Central	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	1,112.70	[1]	1,122.30	[1]
Loans by region percentage of total loans	12.00%	[1]	12.00%	[1]
East North Central	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	1,055.60	[1]	1,037.50
Loans by region percentage of total loans	11.40%	[1]	11.10%	[1]
Mountain	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	771.7	[1]	790.4	[1]
Loans by region percentage of total loans	8.30%	[1]	8.50%	[1]
West North Central	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	525.6	[1]	517.2	[1]
Loans by region percentage of total loans	5.70%	[1]	5.60%	[1]
East South Central	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	198.7	[1]	200.7	[1]
Loans by region percentage of total loans	2.20%	[1]	2.20%	[1]
New England	'		'
Open Option Contracts Written [Line Items]	'		'
Total Commercial mortgage loans	$150.20	[1]	$318.10
Loans by region percentage of total loans	1.60%	[1]	3.40%	[1]
[1]	Balances do not include allowance for mortgage loan credit losses.

Investments_Loans_by_Property_

Investments - Loans by Property Type (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	$9,261.50	[1]	$9,316	[1]
Loans by property type percentage of total loans	100.00%	[1]	100.00%	[1]
Industrial	'		'
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	2,818.60	[1]	2,848	[1]
Loans by property type percentage of total loans	30.40%	[1]	30.60%	[1]
Retail	'		'
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	2,951	[1]	2,936.90	[1]
Loans by property type percentage of total loans	31.90%	[1]	31.50%	[1]
Office	'		'
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	1,089	[1]	1,242.20	[1]
Loans by property type percentage of total loans	11.70%	[1]	13.30%	[1]
Apartments	'		'
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	1,348.70	[1]	1,296.10	[1]
Loans by property type percentage of total loans	14.60%	[1]	13.90%	[1]
Hotel/Motel	'		'
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	382.1	[1]	430.6	[1]
Loans by property type percentage of total loans	4.10%	[1]	4.60%	[1]
Mixed Use	'		'
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	305.8	[1]	184.1	[1]
Loans by property type percentage of total loans	3.30%	[1]	2.00%	[1]
Other	'		'
Investment Holdings [Line Items]	'		'
Total Commercial mortgage loans	$366.30	[1]	$378.10	[1]
Loans by property type percentage of total loans	4.00%	[1]	4.10%	[1]
[1]	Balances do not include allowance for mortgage loan credit losses.

Investments_Mortgages_by_Year_

Investments - Mortgages by Year of Origination (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Investment [Line Items]	'		'
Total Commercial mortgage loans	$9,261.50	[1]	$9,316	[1]
Year of Origination 2014	'		'
Investment [Line Items]	'		'
Total Commercial mortgage loans	252.9	[1]	0	[1]
Year of Origination 2013	'		'
Investment [Line Items]	'		'
Total Commercial mortgage loans	2,187	[1]	2,199.80	[1]
Year of Origination 2012	'		'
Investment [Line Items]	'		'
Total Commercial mortgage loans	1,731.50	[1]	1,743.30	[1]
Year of Origination 2011	'		'
Investment [Line Items]	'		'
Total Commercial mortgage loans	1,804.90	[1]	1,835.90	[1]
Year of Origination 2010	'		'
Investment [Line Items]	'		'
Total Commercial mortgage loans	394.4	[1]	409.8	[1]
Year of Origination 2009	'		'
Investment [Line Items]	'		'
Total Commercial mortgage loans	148.9	[1]	149.5	[1]
Year of Origination 2008	'		'
Investment [Line Items]	'		'
Total Commercial mortgage loans	$2,741.90	[1]	$2,977.70	[1]
[1]	Balances do not include allowance for mortgage loan credit losses.

Investments_OTTI_Details

Investments - OTTI (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
	security	security
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Impairment	$3.30	$11
No. of Securities	44	78
U.S. corporate securities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Impairment	0.4	0
No. of Securities	1	0
Residential mortgage-backed	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Impairment	1.6	3.6
No. of Securities	37	74
Commercial mortgage-backed	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Impairment	0.2	0.1
No. of Securities	2	2
Other asset-backed securities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Impairment	0.1	7.3
No. of Securities	2	2
Equity securities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Impairment	1	0
No. of Securities	2	0
Intent related impairment	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
No. of Securities	2	4
Write-down related to intent impairments	0.2	7.4
Intent related impairment | Commercial mortgage-backed	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
No. of Securities	2	2
Write-down related to intent impairments	0.2	0.1
Intent related impairment | Other asset-backed securities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
No. of Securities	0	2
Write-down related to intent impairments	0	7.3
Credit related impairment	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Write-downs related to credit impairments	$3.10	$3.60

Investments_OTTI_OCI_Details

Investments - OTTI OCI (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other than Temporary Impairment, Recognized in Accumulated Other Comprehensive Income [Roll Forward]	'	'
Balance, beginning	$102.80	$114.70
Additional credit impairments:	'	'
On securities not previously impaired	1.1	0.2
On securities previously impaired	1	3
Reductions:	'	'
Securities intent impaired	0	0
Securities sold, matured, prepaid, or paid down	3.8	5.5
Balance, ending	$101.10	$112.40

Investments_Net_Investment_Inc

Investments - Net Investment Income (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'	'
Gross investment income	$1,146.80	$1,200.10
Less: Investment expenses	1.2	1.4
Net investment income	1,145.60	1,198.70
Fixed maturities	'	'
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'	'
Gross investment income	984.8	1,012.60
Equity securities, available-for-sale	'	'
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'	'
Gross investment income	3.8	2.6
Mortgage loans on real estate	'	'
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'	'
Gross investment income	115.3	118.2
Policy loans	'	'
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'	'
Gross investment income	28	29.9
Short-term investments and cash equivalents	'	'
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'	'
Gross investment income	0.8	0.9
Other	'	'
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'	'
Gross investment income	$14.10	$35.90

Investments_Net_Realized_Capit

Investments - Net Realized Capital Gains (Losses) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	($190.60)	($874.80)
After-tax net realized capital gains (losses), after tax	-118.3	-568.7
Proceeds from sale of investments	'	'
Proceeds on sales	1,494.90	3,212.70
Gross gains	39.7	42
Gross losses	19.8	14.4
Derivatives	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	53.8	-1,099.70
Fixed maturities	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	-3.3	-23.3
Product guarantees	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	-255.1	346.3
Other investments	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	2.1	-0.1
Fixed maturities, available-for-sale, including securities pledged	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	13.7	9.4
Fixed maturities, at fair value using the fair value option	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	-18.9	-107.6
Equity securities, available-for-sale	'	'
Available-for-sale Securities, Including Securities Pledged [Line Items]	'	'
Realized capital gains (losses)	$17.10	$0.20

Derivative_Financial_Instrumen2

Derivative Financial Instruments - Notional and Fair Values (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	$1,167.80		$1,275.80
Derivatives, Liability Fair Value	4,078.70		4,076.40
Interest rate contracts	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	61,908.60		64,734.10
Interest rate contracts | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	60,311.60	[1],[2]	63,122	[1],[2]
Interest rate contracts | Not Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	666.7	[1],[2]	826.2	[1],[2]
Derivatives, Liability Fair Value	804.6	[1],[2]	1,174.30	[1],[2]
Interest rate caps | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	11,800		11,800
Interest rate caps | Not Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	101		162.5
Derivatives, Liability Fair Value	17.7		29.7
Foreign exchange contracts	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	1,407.90		1,456.40
Foreign exchange contracts | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	1,233.20	[1]	1,281.70	[1]
Foreign exchange contracts | Not Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	21.1	[1]	17.8	[1]
Derivatives, Liability Fair Value	29.2	[1]	43.3	[1]
Equity contracts	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	9,707.40		4,513.50
Equity contracts | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	17,412.70	[1]	11,725.90	[1]
Equity contracts | Not Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	217.6	[1]	172.7	[1]
Derivatives, Liability Fair Value	102.6	[1]	52.9	[1]
Credit contracts	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	3,221		3,221
Credit contracts | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	3,221	[1]	3,221	[1]
Credit contracts | Not Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	35.3	[1]	40.5	[1]
Derivatives, Liability Fair Value	12.4	[1]	14.5	[1]
Cash Flow Hedging | Interest rate contracts | Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	723.5	[1]	786	[1]
Cash Flow Hedging | Interest rate contracts | Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	94.9	[1]	81	[1]
Derivatives, Liability Fair Value	0	[1]	0.5	[1]
Cash Flow Hedging | Foreign exchange contracts | Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	174.7	[1]	174.7	[1]
Cash Flow Hedging | Foreign exchange contracts | Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	5.5	[1]	6.3	[1]
Derivatives, Liability Fair Value	2.1	[1]	1.6	[1]
Fair Value Hedging | Interest rate contracts | Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	873.5	[1]	873.5	[1]
Fair Value Hedging | Interest rate contracts | Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	3.6	[1]	4.8	[1]
Derivatives, Liability Fair Value	62.6	[1]	64.7	[1]
Within fixed maturity investments	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	123.1		126.5
Derivatives, Liability Fair Value	0		0
Within annuity products	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	0		0
Derivatives, Liability Fair Value	2,969.30		2,645.60
Within reinsurance agreements	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Asset Fair Value	0		0
Derivatives, Liability Fair Value	$95.90		$79
[1]	Open derivative contracts are reported as Derivatives assets or liabilities on the Condensed Consolidated Balance Sheets at fair value.
[2]	As of MarchB 31, 2014, includes a notional amount, asset fair value and liability fair value for interest rate caps of $11.8 billion, $101.0 and $17.7, respectively. As of DecemberB 31, 2013, includes a notional amount, asset fair value and liability fair value for interest rate caps of $11.8 billion, $162.5 and $29.7, respectively.

Derivative_Financial_Instrumen3

Derivative Financial Instruments Derivative Financial Instruments - Offsetting Assets and Liabilities (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Offsetting Assets and Liabilities [Line Items]	'		'
Collateralized loan obligations notes, at fair value using the fair value option	$5,525.50		$5,161.60
Derivatives, Asset Fair Value	1,039.20		1,147.30
Derivatives, Liability Fair Value	955.5		1,330.90
Counterparty netting, Assets	-589.5	[1]	-701	[1]
Counterparty netting, Liabilities	-589.5	[1]	-701	[1]
Cash collateral netting, Assets	-326.6	[1]	-241.7	[1]
Cash collateral netting, Liabilities	-13.6	[1]	-15.7	[1]
Securities collateral netting, Assets	-43.7	[1]	-35.9	[1]
Securities collateral netting, Liabilities	-260.9	[1]	-479.1	[1]
Net receivables/payables, Assets	79.4		168.7
Net receivables/payables, Liabilities	91.5		135.1
Credit contracts	'		'
Offsetting Assets and Liabilities [Line Items]	'		'
Derivative, Notional Amount	3,221		3,221
Derivatives, Asset Fair Value	35.3		40.5
Derivatives, Liability Fair Value	12.4		14.5
Equity contracts	'		'
Offsetting Assets and Liabilities [Line Items]	'		'
Derivative, Notional Amount	9,707.40		4,513.50
Derivatives, Asset Fair Value	212.1		170.7
Derivatives, Liability Fair Value	44.6		32
Foreign exchange contracts	'		'
Offsetting Assets and Liabilities [Line Items]	'		'
Derivative, Notional Amount	1,407.90		1,456.40
Derivatives, Asset Fair Value	26.6		24.1
Derivatives, Liability Fair Value	31.3		44.9
Interest rate contracts	'		'
Offsetting Assets and Liabilities [Line Items]	'		'
Derivative, Notional Amount	61,908.60		64,734.10
Derivatives, Asset Fair Value	765.2		912
Derivatives, Liability Fair Value	867.2		1,239.50
Securities pledged as collateral	'		'
Offsetting Assets and Liabilities [Line Items]	'		'
Fair value of securities delivered as collateral	$821.90		$1,000
[1]	Represents the netting of receivable balances with payable balances, net of collateral, for the same counterparty under eligible netting agreements.

Derivative_Financial_Instrumen4

Derivative Financial Instruments - Net Realized Gains (Losses) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Derivatives, Fair Value [Line Items]	'		'
Net realized gains (losses) on derivatives	($221.30)		($762)
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	204.2	[1]	-256	[1]
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	-1.7	[1]	87.1	[1]
Other Net Realized Capital Gains (Losses) | Equity contracts | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Net realized gains (losses) on derivatives	-144.9	[1]	-939.1	[1]
Other Net Realized Capital Gains (Losses) | Credit contracts | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Net realized gains (losses) on derivatives	0.8	[1]	6.9	[1]
Within fixed maturity investments | Other Net Realized Capital Gains (Losses)	'		'
Derivatives, Fair Value [Line Items]	'		'
Net realized gains (losses) on derivatives	-3.3	[1]	-23.3	[1]
Within annuity products | Other Net Realized Capital Gains (Losses)	'		'
Derivatives, Fair Value [Line Items]	'		'
Net realized gains (losses) on derivatives	-255.1	[1]	346.3	[1]
Within reinsurance agreements | Policyholder Benefits	'		'
Derivatives, Fair Value [Line Items]	'		'
Net realized gains (losses) on derivatives	-16.7	[2]	14.7	[2]
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	[3]	0.1	[3]
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	0.4	[3]	0	[3]
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	($5.20)	[3]	$1.30	[3]
[1]	Changes in value are included in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
[2]	Changes in value are included in Policyholder benefits in the Condensed Consolidated Statements of Operations.
[3]	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 MarchB 31, 2014 and 2013, ineffective amounts were immaterial.

Derivative_Financial_Instrumen5

Derivative Financial Instruments - Collateral and Credit Default Swaps (Details) (USD $)	3 Months Ended
	Mar. 31, 2014		Dec. 31, 2013
Derivatives, Fair Value [Line Items]	'		'
Collateralized loan obligations notes, at fair value using the fair value option	$5,525,500,000		$5,161,600,000
Fair value of credit default swaps included in Derivatives assets	1,167,800,000		1,275,800,000
Fair value of credit default swaps included in Derivatives liabilities	4,078,700,000		4,076,400,000
Maturity period of derivative	'5 years		'
Credit contracts | Not Designated as Hedging Instrument	'		'
Derivatives, Fair Value [Line Items]	'		'
Maximum potential future net exposure on sale of credit default swaps	1,700,000,000		'
Purchased protection on credit default swaps	500,000,000		'
Credit contracts | Not Designated as Hedging Instrument | Derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Fair value of credit default swaps included in Derivatives assets	35,300,000	[1]	40,500,000	[1]
Fair value of credit default swaps included in Derivatives liabilities	12,400,000	[1]	14,500,000	[1]
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	283,700,000		214,700,000
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	$39,100,000		$18,800,000
[1]	Open derivative contracts are reported as Derivatives assets or liabilities on the Condensed Consolidated Balance Sheets at fair value.

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value Measurement (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Equity securities, available-for-sale	$276.60		$314.40
Derivatives	1,044.70		1,149.30
Derivatives	1,013.50		1,351.80
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	4,677.10		4,617
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	3,834.20		4,396.90
Assets held in separate accounts	102,600.40		101,437.50
Total assets	111,332.30		110,691.80
Percentage of Level to total	59.30%		59.70%
Total liabilities	58		20.9
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	69,247.90		67,318.80
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	270.4		44.9
Assets held in separate accounts	5,221.70		5,376.50
Total assets	75,704.10		73,813.40
Percentage of Level to total	40.30%		39.80%
Total liabilities	1,039		1,395.40
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	878.1		783
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	0		0
Assets held in separate accounts	17.9		13.1
Total assets	1,032.60		946.2
Percentage of Level to total	0.40%		0.50%
Total liabilities	2,981.70		2,660.10
Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	74,803.10		72,718.80
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,104.60		4,441.80
Assets held in separate accounts	107,840		106,827.10
Total assets	188,069		185,451.40
Percentage of Level to total	100.00%		100.00%
Total liabilities	4,078.70		4,076.40
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	765.2		912
Derivatives	867.2		1,239.50
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
Interest rate contracts | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Derivatives	765.2		912
Derivatives	867.2		1,239.50
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	26.6		24.1
Derivatives	31.3		44.9
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
Foreign exchange contracts | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Derivatives	26.6		24.1
Derivatives	31.3		44.9
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	5.5		1.9
Derivatives	58		20.9
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	138.9		83.3
Derivatives	44.6		32
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	73.2		87.5
Derivatives	0		0
Equity contracts | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Derivatives	217.6		172.7
Derivatives	102.6		52.9
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	29		33.2
Derivatives	0		0
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	6.3		7.3
Derivatives	12.4		14.5
Credit contracts | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Derivatives	35.3		40.5
Derivatives	12.4		14.5
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	95.9		79
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
Reinsurance agreements | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Derivatives	95.9		79
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	1,808		1,736.70
FIA | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Liabilities	1,808		1,736.70
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	[1]	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	[1]	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	1,143.30	[1]	908.9
GMAB/GMWB/GMWBL | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Liabilities	1,143.30	[1]	908.9
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	18		0
Stabilizer and MCGs | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Liabilities	18		0
Fixed maturities	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	74,803.10		72,718.80
U.S. Treasuries	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	5,263.10		5,181.20
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	4,677.10		4,617
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	586		564.2
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. Treasuries | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	5,263.10		5,181.20
U.S. government agencies and authorities	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	644.1		618.9
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	636.9		604.5
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	7.2		14.4
U.S. government agencies and authorities | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	644.1		618.9
U.S. corporate, state and municipalities | 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, state and municipalities | 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	38,898.40		37,303.20
U.S. corporate, state and municipalities | 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	568.7		456.5
U.S. corporate, state and municipalities | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	39,467.10		37,759.70
Foreign	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	907.2	[2]	1,051.40	[2]
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	[2]	0	[2]
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	16,609.90	[2]	16,202.20	[2]
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	130.7	[2]	154.3	[2]
Foreign | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	16,740.60	[2]	16,356.50	[2]
Residential mortgage-backed	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	7,052.70		7,123.70
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	6,948.30		7,025.10
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	104.4		98.6
Residential mortgage-backed | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	7,052.70		7,123.70
Commercial mortgage-backed	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	3,796.10		3,752.10
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	3,771.20		3,752.10
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	24.9		0
Commercial mortgage-backed | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	3,796.10		3,752.10
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	1,797.20		1,867.50
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	42.2		59.2
Other asset-backed securities | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Fixed maturities, including securities pledged	1,839.40		1,926.70
Equity securities	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Equity securities, available-for-sale	276.6		314.4
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	215.1		238.5
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	4.4		20.6
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	57.1		55.3
Equity securities | Measured at fair value on a recurring basis | Total	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Equity securities, available-for-sale	$276.60		$314.40
[1]	Guaranteed minimum accumulation benefits ("GMAB"), Guaranteed minimum withdrawal benefits ("GMWB") and Guaranteed minimum withdrawal benefits with life payouts ("GMWBL").
[2]	Primarily U.S. dollar denominated.

Fair_Value_Measurements_Level_

Fair Value Measurements - Level 3 Financial Instruments (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Fixed Maturities and Equity Securities Rollforward:	'		'
Investments transferred from Level 2 to Level 3	$13.90		'
Assets held in separate accounts | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Assets, beginning balance	13.1	[1]	16.3	[1]
Total Realized/Unrealized Gains (Losses) Included in Net income	0	[1]	0	[1]
Total Realized/Unrealized Gains (Losses) Included in OCI	0	[1]	0	[1]
Purchases	5.8	[1]	0.2	[1]
Issuances	0	[1]	0	[1]
Sales	-1	[1]	-6.6	[1]
Settlements	0	[1]	0	[1]
Investments transferred from Level 2 to Level 3	0	[1],[2]	2.2	[1],[2]
Transfers out of Level 3	0	[1],[2]	-9.9	[1],[2]
Fair Value, Assets, ending balance	17.9	[1]	2.2	[1]
Change In Unrealized Gains (Losses) Included in Earnings	0	[1],[3]	0	[1],[3]
FIA | Measured at fair value on a recurring basis | Level 3	'		'
Derivatives Rollforward:	'		'
Fair Value, Derivatives, beginning balance	-1,736.70	[4]	-1,434.30	[4]
Total Realized/Unrealized Gains (Losses) Included in Net income	-42.4	[4]	-123.7	[4]
Total Realized/Unrealized Gains (Losses) Included in OCI	0	[4]	0	[4]
Purchases	0	[4]	0	[4]
Issuances	-50.3	[4]	-15.1	[4]
Sales	0	[4]	0	[4]
Settlements	21.4	[4]	11.4	[4]
Transfers in to Level 3	0	[2],[4]	0	[2],[4]
Transfers out of Level 3	0	[2],[4]	0	[2],[4]
Fair Value, Derivatives, ending balance	-1,808	[4]	-1,561.70	[4]
Change In Unrealized Gains (Losses) Included in Earnings	0	[3],[4]	0	[3],[4]
GMAB/GMWB/GMWBL | Measured at fair value on a recurring basis | Level 3	'		'
Derivatives Rollforward:	'		'
Fair Value, Derivatives, beginning balance	-908.9	[4]	-2,035.40	[4]
Total Realized/Unrealized Gains (Losses) Included in Net income	-195.9	[4]	444.5	[4]
Total Realized/Unrealized Gains (Losses) Included in OCI	0	[4]	0	[4]
Purchases	0	[4]	0	[4]
Issuances	-38.6	[4]	-37.8	[4]
Sales	0	[4]	0	[4]
Settlements	0.1	[4]	0.1	[4]
Transfers in to Level 3	0	[2],[4]	0	[2],[4]
Transfers out of Level 3	0	[2],[4]	0	[2],[4]
Fair Value, Derivatives, ending balance	-1,143.30	[4]	-1,628.60	[4]
Change In Unrealized Gains (Losses) Included in Earnings	0	[3],[4]	0	[3],[4]
Stabilizer and MCGs | Measured at fair value on a recurring basis | Level 3	'		'
Derivatives Rollforward:	'		'
Fair Value, Derivatives, beginning balance	0	[4]	-102	[4]
Total Realized/Unrealized Gains (Losses) Included in Net income	-16.8	[4]	25.5	[4]
Total Realized/Unrealized Gains (Losses) Included in OCI	0	[4]	0	[4]
Purchases	-1.2	[4]	-1.5	[4]
Issuances	0	[4]	0	[4]
Sales	0	[4]	0	[4]
Settlements	0	[4]	0	[4]
Transfers in to Level 3	0	[2],[4]	0	[2],[4]
Transfers out of Level 3	0	[2],[4]	0	[2],[4]
Fair Value, Derivatives, ending balance	-18	[4]	-78	[4]
Change In Unrealized Gains (Losses) Included in Earnings	0	[3],[4]	0	[3],[4]
Other derivatives, net | Measured at fair value on a recurring basis | Level 3	'		'
Derivatives Rollforward:	'		'
Fair Value, Derivatives, beginning balance	80.3		22.9
Total Realized/Unrealized Gains (Losses) Included in Net income	1		44.7
Total Realized/Unrealized Gains (Losses) Included in OCI	0		0
Purchases	7.4		6.3
Issuances	0		0
Sales	0		0
Settlements	-21.6		-8.4
Transfers in to Level 3	0	[2]	0	[2]
Transfers out of Level 3	0	[2]	0	[2]
Fair Value, Derivatives, ending balance	67.1		65.5
Change In Unrealized Gains (Losses) Included in Earnings	-12.7	[3]	37.6	[3]
U.S. government agencies and authorities | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Fixed maturities, including securities pledged, beginning balance	14.4		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	-0.2		0
Investments transferred from Level 2 to Level 3	0	[2]	0	[2]
Transfers out of Level 3	-7	[2]	0	[2]
Fair Value, Fixed maturities, including securities pledged, ending balance	7.2		0
Change In Unrealized Gains (Losses) Included in Earnings	0	[3]	0	[3]
U.S. corporate, state and municipalities | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Fixed maturities, including securities pledged, beginning balance	456.5		524.2
Total Realized/Unrealized Gains (Losses) Included in Net income	0		-0.1
Total Realized/Unrealized Gains (Losses) Included in OCI	4.5		2.2
Purchases	108		50.1
Issuances	0		0
Sales	0		0
Settlements	-10.1		-13.5
Investments transferred from Level 2 to Level 3	12.8	[2]	58.5	[2]
Transfers out of Level 3	-3	[2]	-64.6	[2]
Fair Value, Fixed maturities, including securities pledged, ending balance	568.7		556.8
Change In Unrealized Gains (Losses) Included in Earnings	0	[3]	-0.1	[3]
Foreign | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Fixed maturities, including securities pledged, beginning balance	154.3		104.2
Total Realized/Unrealized Gains (Losses) Included in Net income	0		0
Total Realized/Unrealized Gains (Losses) Included in OCI	1.6		4.8
Purchases	0		0
Issuances	0		0
Sales	0		0
Settlements	-0.2		-1.7
Investments transferred from Level 2 to Level 3	0	[2]	0	[2]
Transfers out of Level 3	-25	[2]	0	[2]
Fair Value, Fixed maturities, including securities pledged, ending balance	130.7		107.3
Change In Unrealized Gains (Losses) Included in Earnings	0	[3]	0	[3]
Residential mortgage-backed securities | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Fixed maturities, including securities pledged, beginning balance	98.6		74.1
Total Realized/Unrealized Gains (Losses) Included in Net income	-2.8		-1.8
Total Realized/Unrealized Gains (Losses) Included in OCI	0.8		0
Purchases	0		16
Issuances	0		0
Sales	0		0
Settlements	-0.6		-0.2
Investments transferred from Level 2 to Level 3	8.8	[2]	0.2	[2]
Transfers out of Level 3	-0.4	[2]	0	[2]
Fair Value, Fixed maturities, including securities pledged, ending balance	104.4		88.3
Change In Unrealized Gains (Losses) Included in Earnings	-2.8	[3]	-1.8	[3]
Other asset-backed securities | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Fixed maturities, including securities pledged, beginning balance	59.2		115.2
Total Realized/Unrealized Gains (Losses) Included in Net income	3.1		5.9
Total Realized/Unrealized Gains (Losses) Included in OCI	-2.5		-0.7
Purchases	0		0
Issuances	0		0
Sales	0		0
Settlements	-17.6		-19.5
Investments transferred from Level 2 to Level 3	0	[2]	0.3	[2]
Transfers out of Level 3	0	[2]	-0.3	[2]
Fair Value, Fixed maturities, including securities pledged, ending balance	42.2		100.9
Change In Unrealized Gains (Losses) Included in Earnings	1	[3]	3.7	[3]
Fixed maturities, available-for-sale, including securities pledged | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Fixed maturities, including securities pledged, beginning balance	783		817.7
Total Realized/Unrealized Gains (Losses) Included in Net income	0.3		4
Total Realized/Unrealized Gains (Losses) Included in OCI	4.4		6.3
Purchases	132.9		66.1
Issuances	0		0
Sales	0		0
Settlements	-28.7		-34.9
Investments transferred from Level 2 to Level 3	21.6	[2]	59	[2]
Transfers out of Level 3	-35.4	[2]	-64.9	[2]
Fair Value, Fixed maturities, including securities pledged, ending balance	878.1		853.3
Change In Unrealized Gains (Losses) Included in Earnings	-1.8	[3]	1.8	[3]
Equity securities | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Assets, beginning balance	55.3		55.8
Total Realized/Unrealized Gains (Losses) Included in Net income	-0.9		-0.3
Total Realized/Unrealized Gains (Losses) Included in OCI	2.8		1.8
Purchases	0		2
Issuances	0		0
Sales	-0.1		-1.9
Settlements	0		0
Investments transferred from Level 2 to Level 3	0	[2]	51.8	[2]
Transfers out of Level 3	0	[2]	-49.8	[2]
Fair Value, Assets, ending balance	57.1		59.4
Change In Unrealized Gains (Losses) Included in Earnings	-0.9	[3]	0	[3]
Commercial mortgage-backed securities | Measured at fair value on a recurring basis | Level 3	'		'
Fixed Maturities and Equity Securities Rollforward:	'		'
Fair Value, Fixed maturities, including securities pledged, beginning balance	0		0
Total Realized/Unrealized Gains (Losses) Included in Net income	0		0
Total Realized/Unrealized Gains (Losses) Included in OCI	0		0
Purchases	24.9		0
Issuances	0		0
Sales	0		0
Settlements	0		0
Investments transferred from Level 2 to Level 3	0	[2]	0	[2]
Transfers out of Level 3	0	[2]	0	[2]
Fair Value, Fixed maturities, including securities pledged, ending balance	24.9		0
Change In Unrealized Gains (Losses) Included in Earnings	$0	[3]	$0	[3]
[1]	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 result in a net zero impact on net income for the Company.
[2]	The Company's policy is to recognize transfers in and transfers out as of the beginning of the reporting period.
[3]	For financial instruments still held as of MarchB 31, amounts are included in Net investment income and Total net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.
[4]	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.

Fair_Value_Measurements_Signif

Fair Value Measurements - Significant Unobservable Inputs (Details) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Fair Value Inputs, Actuarial Assumptions, Benefit Utilization, Percent of Policyholders Taking Systematic Withdrawals	31.00%		30.00%		'
Fair Value Inputs, Actuarial Assumptions, Benefit Utilization, Percent of Policyholders Assumed to Begin Systematic Withdrawals	85.00%		85.00%		'
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Average Expected Delay	'2 years 2 months 12 days		'2 years 3 months 18 days		'
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	$16,400		$16,500		'
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%		88.00%		'
Stabilizer with Recordkeeping Agreements	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Percentage of Plans	12.00%		12.00%		'
Investment contract | GMWB/GMWBL | Minimum | Market Approach Valuation Technique	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Long-term equity implied volatility	15.00%	[1]	'		15.00%
Interest rate implied volatility	0.20%	[1]	'		0.20%
Equity Funds	50.00%	[1]	'		50.00%
Equity and Fixed Income Funds	-38.00%	[1]	'		-33.00%
Interest Rates and Equity Funds	-31.00%	[1]	'		-30.00%
Nonperformance risk	-0.10%	[1]	'		-0.10%
Benefit Utilization	85.00%	[1],[2]	'		85.00%
Partial Withdrawals	0.00%	[1]	'		0.00%
Lapses	0.08%	[1],[3]	'		0.08%
Policyholder Deposits	0.00%	[1],[4]	'		0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	[1],[5]	'		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%	[1]	'		25.00%
Interest rate implied volatility	16.00%	[1]	'		16.00%
Equity Funds	98.00%	[1]	'		98.00%
Equity and Fixed Income Funds	62.00%	[1]	'		62.00%
Interest Rates and Equity Funds	-14.00%	[1]	'		-14.00%
Nonperformance risk	0.79%	[1]	'		0.79%
Benefit Utilization	100.00%	[1],[2]	'		100.00%
Partial Withdrawals	10.00%	[1]	'		10.00%
Lapses	40.00%	[1],[3]	'		40.00%
Policyholder Deposits	0.00%	[1],[4]	'		0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	[1],[5]	'		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%	[1]	'		15.00%
Interest rate implied volatility	0.20%	[1]	'		0.20%
Equity Funds	50.00%	[1]	'		50.00%
Equity and Fixed Income Funds	-38.00%	[1]	'		-33.00%
Interest Rates and Equity Funds	-31.00%	[1]	'		-30.00%
Nonperformance risk	0.10%	[1]	'		-0.10%
Benefit Utilization	0.00%	[1]	'		0.00%
Partial Withdrawals	0.00%	[1]	'		0.00%
Lapses	0.08%	[1],[3]	'		0.08%
Policyholder Deposits	0.00%	[1],[4]	'		0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	[1],[5]	'		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%	[1]	'		25.00%
Interest rate implied volatility	16.00%	[1]	'		16.00%
Equity Funds	98.00%	[1]	'		98.00%
Equity and Fixed Income Funds	62.00%	[1]	'		62.00%
Interest Rates and Equity Funds	-14.00%	[1]	'		-14.00%
Nonperformance risk	0.79%	[1]	'		0.79%
Benefit Utilization	0.00%	[1]	'		0.00%
Partial Withdrawals	10.00%	[1]	'		10.00%
Lapses	31.00%	[1],[3]	'		31.00%
Policyholder Deposits	0.00%	[1],[4]	'		0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	[1],[5]	'		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%	[1]	'		0.00%
Interest rate implied volatility	0.00%	[1]	'		0.00%
Equity Funds	0.00%	[1]	'		0.00%
Equity and Fixed Income Funds	0.00%	[1]	'		0.00%
Interest Rates and Equity Funds	0.00%	[1]	'		0.00%
Nonperformance risk	-0.10%	[1]	'		-0.10%
Benefit Utilization	0.00%	[1]	'		0.00%
Partial Withdrawals	0.00%	[1]	'		0.00%
Lapses	0.00%	[1],[3]	'		0.00%
Policyholder Deposits	0.00%	[1],[4]	'		0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	[1]	'		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%	[1]	'		0.00%
Interest rate implied volatility	0.00%	[1]	'		0.00%
Equity Funds	0.00%	[1]	'		0.00%
Equity and Fixed Income Funds	0.00%	[1]	'		0.00%
Interest Rates and Equity Funds	0.00%	[1]	'		0.00%
Nonperformance risk	0.79%	[1]	'		0.79%
Benefit Utilization	0.00%	[1]	'		0.00%
Partial Withdrawals	0.00%	[1]	'		0.00%
Lapses	10.00%	[1],[3]	'		10.00%
Policyholder Deposits	0.00%	[1],[4]	'		0.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	[1]	'		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%	[1]	'		0.00%
Interest rate implied volatility	0.20%	[1]	'		0.20%
Equity Funds	0.00%	[1]	'		0.00%
Equity and Fixed Income Funds	0.00%	[1]	'		0.00%
Interest Rates and Equity Funds	0.00%	[1]	'		0.00%
Nonperformance risk	-0.10%	[1]	'		-0.10%
Benefit Utilization	0.00%	[1]	'		0.00%
Partial Withdrawals	0.00%	[1]	'		0.00%
Lapses	0.00%	[1],[6]	'		0.00%
Policyholder Deposits	0.00%	[1],[4],[6]	'		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%	[1]	'		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%	[1]	'		0.00%
Interest rate implied volatility	7.60%	[1]	'		8.00%
Equity Funds	0.00%	[1]	'		0.00%
Equity and Fixed Income Funds	0.00%	[1]	'		0.00%
Interest Rates and Equity Funds	0.00%	[1]	'		0.00%
Nonperformance risk	0.79%	[1]	'		0.79%
Benefit Utilization	0.00%	[1]	'		0.00%
Partial Withdrawals	0.00%	[1]	'		0.00%
Lapses	55.00%	[1],[6]	'		55.00%
Policyholder Deposits	60.00%	[1],[4],[6]	'		60.00%
Actuarial Assumptions, Lapses under percent threshold	25.00%		'		25.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	30.00%		'		30.00%
Fair Value Inputs, Actuarial Assumptions, Mortality	0.00%	[1]	'		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	30.00%		'		30.00%
Policyholder Deposits	55.00%		'		55.00%
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	55.00%		'		55.00%
Policyholder Deposits	60.00%		'		60.00%
Actuarial Assumptions, Lapses under percent threshold	25.00%		'		25.00%
Actuarial Assumptions, Policyholder Deposits under percent threshold	30.00%		'		30.00%
In the Money	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	12,400		11,200		'
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	6,200	[7]	5,700	[6]	'
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	5.50%		'		5.50%
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	[7],[8]	0	[6],[8]	'
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	6,200	[7]	5,600	[6]	'
In the Money | After Surrender Charge Period | GMWB/GMWBL | Minimum	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Lapses	1.50%		'		1.50%
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	[7],[8]	0	[6],[8]	'
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	4,000		5,300		'
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	2,500		3,300		'
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	11.00%		'		11.00%
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	[8]	0	[8]	'
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	2,200		2,800		'
Out of the Money | After Surrender Charge Period | GMWB/GMWBL | Minimum	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Lapses	6.90%		'		6.90%
Out of the Money | After Surrender Charge Period | GMWB/GMWBL | Maximum	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Lapses	40.00%		'		40.00%
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		100		'
Out of the Money | After Surrender Charge Period | GMAB | Minimum	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Lapses	12.00%		'		12.00%
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	'5 years 4 months 24 days		'5 years 4 months 24 days		'
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	3,400		3,500		'
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	2,400		2,100		'
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	1,000		1,400		'
Age 60-69	'		'		'
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'		'		'
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Average Expected Delay	'1 year 2 months 12 days		'1 year 4 months 24 days		'
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	7,500		7,700		'
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	5,600		5,100		'
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	1,900		2,600		'
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	'0 days		'0 years		'
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	5,500		5,300		'
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	4,400		4,000		'
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	$1,100		$1,300		'
[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, 31% are taking systematic withdrawals. Of those policyholders who are not taking withdrawals, we assume 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 MarchB 31, 2014 (account value amounts are in $ billions). Account Values Attained Age GroupB In the MoneyB Out of the MoneyB TotalB Average Expected Delay (Years)< 60B $2.4B $1.0B $3.4B 5.460-69B 5.6B 1.9B 7.5B 1.270+B 4.4B 1.1B 5.5B 0.0 $12.4B $4.0B $16.4B 2.2
[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. 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 MarchB 31, 2014 (account value amounts are in $ billions). GMABB GMWB/GMWBLB MoneynessB Account ValueB Lapse RangeB Account ValueB Lapse RangeDuring Surrender Charge Period In the Money**B $b*0.08% to 8.2%B $6.2B 0.08% to 5.5%B Out of the MoneyB b*0.41% to 12%B 2.5B 0.36% to 11%After Surrender Charge Period In the Money**B $b*2.5% to 21%B $6.2B 1.5% to 21%B Out of the MoneyB 0.1B 12% to 31%B 2.2B 6.9% to 40%* 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."
[4]	Measured as a percentage of assets under management or assets under administration.
[5]	The mortality rate is based on the Annuity 2000 Basic table with mortality improvements.
[6]	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:B Percentage of PlansB Overall Range of Lapse RatesB Range of Lapse Rates for 85% of PlansB Overall Range of Policyholder DepositsB Range of Policyholder Deposits for 85% of PlansStabilizer (Investment Only) and MCG Contracts88%B 0-30%B 0-15%B 0-55%B 0-15%Stabilizer with Recordkeeping Agreements12%B 0-55%B 0-25%B 0-60%B 0-30%Aggregate of all plans100%B 0-55%B 0-25%B 0-60%B 0-30%
[7]	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."
[8]	* Less than $0.1

Fair_Value_Measurements_Other_

Fair Value Measurements - Other Financial Instruments (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Investments	$73,808.40		$71,567.50
Loans	5,490.70		4,965.30
Derivatives	1,044.70		1,149.30
Derivatives	1,013.50		1,351.80
Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Limited partnerships/corporations	218.9		236.4
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,104.60		4,441.80
Derivatives	1,044.70		1,149.30
Other investments	124.1		124.6
Assets held in separate accounts	107,840		106,827.10
Other derivatives	1,013.50		1,351.80
Long-term debt	3,515		3,514.70
Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Limited partnerships/corporations	218.9		236.4
Cash and cash equivalents, short-term investments and short-term investments under securities loan agreement	4,104.60		4,441.80
Derivatives	1,044.70		1,149.30
Other investments	130.6		131.1
Assets held in separate accounts	107,840		106,827.10
Other derivatives	1,013.50		1,351.80
Long-term debt	3,824.90		3,717.80
Stabilizer (Investment Only) and MCG Contracts [Member]	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Percentage of Plans	88.00%		88.00%
Funding agreements without fixed maturities and deferred annuities(1) | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	49,732.60		49,418.40
Funding agreements without fixed maturities and deferred annuities(1) | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	54,566.80		53,713.80
Funding agreements with fixed maturities and guaranteed investment contracts | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	2,332		2,692.30
Funding agreements with fixed maturities and guaranteed investment contracts | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	2,310.50		2,663.90
Supplementary contracts, immediate annuities and other | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	3,542		3,383.60
Supplementary contracts, immediate annuities and other | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	3,799.70		3,567.30
FIA | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,808		1,736.70
FIA | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,808		1,736.70
GMAB/GMWB/GMWBL | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,143.30		908.9
GMAB/GMWB/GMWBL | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,143.30		908.9
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	18		0
Stabilizer and MCGs | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	18		0
Stabilizer with Recordkeeping Agreements	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Percentage of Plans	12.00%		12.00%
Mortgage loans on real estate | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Loans	9,258.10		9,312.20
Mortgage loans on real estate | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Loans	9,336.90		9,404.70
Policy loans | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Loans	2,119.70		2,147
Policy loans | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Loans	2,119.70		2,147
Fixed maturities, available-for-sale, including securities pledged | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Investments	74,803.10		72,718.80
Fixed maturities, available-for-sale, including securities pledged | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Investments	74,803.10		72,718.80
Equity securities, available-for-sale | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Investments	276.6		314.4
Equity securities, available-for-sale | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Investments	276.6		314.4
Reinsurance agreements | Carrying Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Derivatives	95.9		79
Reinsurance agreements | Fair Value	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Derivatives	95.9		79
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	3,834.20		4,396.90
Assets held in separate accounts	102,600.40		101,437.50
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	[1]	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	270.4		44.9
Assets held in separate accounts	5,221.70		5,376.50
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	[1]	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	0		0
Assets held in separate accounts	17.9		13.1
Level 3 | Measured at fair value on a recurring basis | FIA	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,808		1,736.70
Level 3 | Measured at fair value on a recurring basis | GMAB/GMWB/GMWBL	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,143.30	[1]	908.9
Level 3 | Measured at fair value on a recurring basis | Stabilizer and MCGs	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	18		0
Fair Value | 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	4,104.60		4,441.80
Assets held in separate accounts	107,840		106,827.10
Fair Value | Measured at fair value on a recurring basis | FIA	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,808		1,736.70
Fair Value | Measured at fair value on a recurring basis | GMAB/GMWB/GMWBL	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	1,143.30	[1]	908.9
Fair Value | Measured at fair value on a recurring basis | Stabilizer and MCGs	'		'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'		'
Liabilities	$18		$0
[1]	Guaranteed minimum accumulation benefits ("GMAB"), Guaranteed minimum withdrawal benefits ("GMWB") and Guaranteed minimum withdrawal benefits with life payouts ("GMWBL").

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, 2014		Mar. 31, 2013
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]	'		'
Beginning balance	$4,316.10		$3,221.60
Deferrals of commissions and expenses	91.6		104.5
Amortization:	'		'
Amortization	-159.6		-174.8
Interest accrued	58.3	[1]	58.4	[1]
Net amortization included in the Consolidated Statements of Operations	-101.3		-116.4
Change in unrealized capital gains/losses on available-for-sale securities	-293.3		262
Ending balance	4,013.10		3,471.70
Movement Analysis Of Value of Business Acquired VOBA [Roll Forward]	'		'
Beginning balance	1,035.50		434.7
Deferrals of commissions and expenses	3.4		3.3
Amortization:	'		'
Amortization	-47.3		-36.6
Interest accrued	22.5	[1]	22.5	[1]
Net amortization included in Condensed Consolidated Statements of Operations	-24.8		-14.1
Change in unrealized capital gains/losses on available-for-sale securities	-166.4		124
Ending balance	847.7		547.9
Movement Analysis of Deferred Policy Acquisition Costs and Value of Business Acquired (VOBA) [Roll Forward]	'		'
Beginning balance	5,351.60		3,656.30
Deferrals of commissions and expenses	95		107.8
Amortization:	'		'
Amortization	-206.9		-211.4
Interest accrued	80.8	[1]	80.9	[1]
Net amortization included in Condensed Consolidated Statements of Operations	-126.1		-130.5
Change in unrealized capital gains/losses on available-for-sale securities	-459.7		386
Ending balance	$4,860.80		$4,019.60
Minimum	'		'
Amortization:	'		'
Deferred Policy Acquisition Costs, Interest accrued percentage	0.60%		1.70%
Value of Business Acquired (VOBA), Interest accrued percentage	4.10%		3.00%
Maximum	'		'
Amortization:	'		'
Deferred Policy Acquisition Costs, Interest accrued percentage	7.40%		7.40%
Value of Business Acquired (VOBA), Interest accrued percentage	7.50%		7.50%
[1]	Interest accrued at the following rates for DAC: 0.6% to 7.4% during 2014 and 1.7% to 7.4% during 2013. Interest accrued at the following rates for VOBA: 4.1% to 7.5% during 2014 and 3.0% to 7.5% during 2013.

ShareBased_Incentive_Compensat2

Share-Based Incentive Compensation Plans (Details) (USD $)

Mar. 31, 2014

7-May-13

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 25, 2014

Mar. 31, 2014

7-May-13

Jun. 13, 2013

Jun. 13, 2013

Jun. 13, 2013

Mar. 31, 2014

Mar. 31, 2014

7-May-13

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 25, 2014

Oct. 29, 2013

Omnibus Plan

Omnibus Plan

Omnibus Plan

Omnibus Plan

Omnibus Plan

Omnibus Plan

Omnibus Plan

Omnibus Plan

Equity Compensation Plan Converted to Omnibus Plan

Deal Incentive Awards Converted to Omnibus Plan

Deal Incentive Awards Converted to Omnibus Plan

2013 Non-Employee Director Incentive Plan

2013 Non-Employee Director Incentive Plan

2013 Non-Employee Director Incentive Plan

2013 Non-Employee Director Incentive Plan

Phantom Stock Plan

Phantom Stock Plan

Long-term Sustainable Performance Plan

Long-term Sustainable Performance Plan

ING Group Share-based Compensation Plans

Minimum

Minimum

Maximum

Maximum

ING Group

ING Group

Performance shares

Performance shares

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

RSUs - Deal incentive awards

RSUs - Deal incentive awards

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Cliff Vesting, Year One

Cliff Vesting, Year Two

Cliff Vesting, Year Three

Phantom Share Units (PSUs)

Phantom Performance Shares

Annual Vesting

Performance shares

Restricted Stock Units (RSUs)

Omnibus Plan

Omnibus Plan

Omnibus Plan

Omnibus Plan

Share-based Compensation Award, Tranche Two

Share-based Compensation Award, Tranche Three

Non-Employee Directors

Non-Employee Directors

Non-Employee Directors

Non-Identified Staff

Performance shares

Restricted Stock Units (RSUs)

Performance shares

Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares authorized for issuance

'

7,650,000

'

'

'

'

'

'

'

'

'

88,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares available for grant

102,408

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vesting percentage of grant

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.00%

'

150.00%

'

'

'

Award vesting period

'

'

'

'

'

'

'

'

'3 years

'

'

'

'

'

'

'

'

'

'

'3 years

'1 year

'1 year

'4 years

'4 years

'

'

Number of stock options outstanding

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of awards vested during period

'

'

'

'

'

'

'

'

'

849,555

165,642

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vested awards, weighted average grant date fair value

'

'

$28.06

'

$19.29

'

$19.50

[1]

'

'

'

$30.03

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based payment award, vesting percentage

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

25.00%

25.00%

'

'

33.33%

'

'

'

'

'

'

'

'

Number of units granted

'

'

700,000

500,000

3,300,000

1,600,000

0

[1]

800,000

[1]

'

'

'

'

'

'

'

183,874

99,160

'

'

'

'

'

'

'

'

'

Percentage of vested awards delivered

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

33.33%

'

'

'

'

'

'

'

Ownership by affiliate of parent company

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

43.00%

57.00%

[1]

Excludes 273,504 RSUs granted in 2013 that proportionally vest upon sales of Company stock by ING Group.

ShareBased_Incentive_Compensat3

Share-Based Incentive Compensation Plans - Compensation Cost (Details) (USD $)	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	$32,100,000	[1]	$6,500,000	[1]
Tax benefit due to recognized valuation allowances	0		0
Restricted Stock Units (RSUs)	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	7,000,000	[2]	4,800,000	[2]
RSUs - Deal incentive awards	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	5,600,000		0
Performance shares (PSU awards)	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	19,200,000	[2]	900,000	[2]
Employee Stock Option	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	0	[3]	800,000	[3]
Phantom Stock Plan	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	300,000		0
ING Group Share-based Compensation Plans | Restricted Stock Units (RSUs)	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	1,800,000		'
Long-term Sustainable Performance Plan | Performance shares (PSU awards)	'		'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'		'
Compensation cost	$10,600,000		'
[1]	The Company recognized no income tax benefit due to recognized valuation allowances for all periods presented. See Note 9. Income Taxes to these Condensed Consolidated Financial Statements for additional information.
[2]	This table includes compensation costs of $1.8 and $10.6 with respect to ING Group RSUs and PSU awards, respectively, for the three months ended MarchB 31, 2014. For the three months ended MarchB 31, 2013, all share-based compensation costs are related to the ING Group equity-based compensation plans.
[3]	All compensation costs recognized during the three months ended MarchB 31, 2013 represents the associated portion with ING Group stock options held by the Company's employees.

ShareBased_Incentive_Compensat4

Share-Based Incentive Compensation Plans - Awards Outstanding (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Restricted Stock Units (RSUs)	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]	'
Share-based Compensation Arrangement by Share-based Payment Award, Units Granted In Prior Period Excluded From Activity	273,504
Omnibus Plan | Restricted Stock Units (RSUs)	'
Number of Awards	'
Outstanding, beginning balance	1,600,000
Granted	1,800,000
Vested	-100,000
Forfeited	0	[1]
Outstanding, ending balance	3,300,000
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	19.15
Granted	37.01
Vested	19.29
Forfeited	0
Outstanding, ending balance	28.66
Omnibus Plan | RSUs - Deal incentive awards	'
Number of Awards	'
Outstanding, beginning balance	800,000	[2]
Granted	0	[2]
Vested	-800,000	[2],[3]
Forfeited	0	[1],[2]
Outstanding, ending balance	0	[2]
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	19.5	[2]
Granted	0	[2]
Vested	19.5	[2]
Forfeited	0	[2]
Outstanding, ending balance	0	[2]
Omnibus Plan | Performance shares (PSU awards)	'
Number of Awards	'
Outstanding, beginning balance	500,000
Adjustment for PSU performance factor	300,000
Granted	700,000
Vested	-800,000
Forfeited	0	[1]
Outstanding, ending balance	700,000
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	28.06
Adjustment for PSU performance factor	28.06
Granted	36.98
Vested	28.06
Forfeited	0
Outstanding, ending balance	36.86
[1]	* Less than $0.1
[2]	Excludes 273,504 RSUs granted in 2013 that proportionally vest upon sales of Company stock by ING Group.
[3]	As of MarchB 31, 2014, these vested shares have not yet been issued.

Shareholders_Equity_and_Earnin2

Shareholders' Equity and Earnings Per Common Share - Common Stock Rollforward (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Common shares, beginning balance	261,675,811	230,000,000
Common stock acquired - Share buyback	-7,500,000	0
Issuance of shares for share-based incentive compensation, net	500,000	0
Common shares, ending balance	254,734,166	230,000,000
Common Stock, Issued	'	'
Common shares, beginning balance	261,800,000	230,100,000
Common stock acquired - Share buyback	0	0
Issuance of shares for share-based incentive compensation, net	800,000	0
Common shares, ending balance	262,600,000	230,100,000
Common Stock, Held in Treasury	'	'
Common shares, beginning balance	-100,000	-100,000
Common stock acquired - Share buyback	7,500,000	0
Issuance of shares for share-based incentive compensation, net	-300,000	0
Common shares, ending balance	-7,900,000	-100,000

Shareholders_Equity_and_Earnin3

Shareholders' Equity and Earnings Per Common Share - Narrative (Details) (USD $)	0 Months Ended			3 Months Ended			0 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 25, 2014	Mar. 13, 2014	Feb. 06, 2014	Mar. 31, 2014	Mar. 31, 2013	7-May-13	Mar. 31, 2014	Mar. 25, 2014
							ING U.S. Inc.	ING U.S. Inc.
Class of Stock [Line Items]	'	'	'	'	'	'	'	'
Share repurchase program, authorized amount	'	$300	'	'	'	'	'	'
Shares repurchased	'	'	'	'	'	'	250,000	7,255,853
Shares repurchased, value	'	'	'	258.9	0	'	8.9	250
Remaining authorized amount	50	'	'	'	'	'	'	'
Shares paid for tax withholding obligations	'	'	'	306,408	'	'	'	'
Number of warrants issued and outstanding	'	'	'	'	'	26,050,846	'	'
Percentage of issued warrants to total shares issued and outstanding	'	'	'	'	'	9.99%	'	'
Exercise price of warrants	'	'	'	'	'	48.75	'	'
Fair value of warrants issued	'	'	'	'	'	$94	'	'
Cash dividends declared per share of common stock	'	'	$0.01	$0.01	$0	'	'	'

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, 2014	Mar. 31, 2013
Equity [Abstract]	'	'
Net income (loss)	$271.60	($225.50)
Less: Net income (loss) attributable to noncontrolling interest	13.5	-13.5
Net income (loss) available to common shareholders	$258.10	($212)
Weighted-average common shares outstanding, Basic:	'	'
Basic	261,100,000	230,000,000
Weighted-average common shares outstanding, Dilutive Effects:	'	'
Dilutive	263,500,000	230,000,000
Net income (loss) per common share	'	'
Basic	$0.99	($0.92)
Dilutive	$0.98	($0.92)
Restricted Stock Units (RSUs)	'	'
Weighted-average common shares outstanding, Dilutive Effects:	'	'
Dilutive effects of share-based payments	1,000,000	0
Performance shares (PSU awards)	'	'
Weighted-average common shares outstanding, Dilutive Effects:	'	'
Dilutive effects of share-based payments	600,000	0
RSUs - Deal incentive awards	'	'
Weighted-average common shares outstanding, Dilutive Effects:	'	'
Dilutive effects of share-based payments	800,000	0

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income - Components of AOCI (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
In Millions, unless otherwise specified
Components Of Accumulated Other Comprehensive Income Loss [Line Items]	'	'	'
Derivatives	$158	'	$201.50
DAC/VOBA adjustment on available-for-sale securities	-1,514.70	'	-2,397.60
Sales inducements adjustment on available-for-sale securities	-74.8	'	-119
Other	-28	'	-28.8
Unrealized capital gains (losses), before tax	3,332	'	4,759.10
Deferred income tax asset (liability)	-802.7	'	-1,363.40
Unrealized capital gains (losses), after tax	2,529.30	'	3,395.70
Pension and other post-employment benefits liability, net of tax	48.2	'	57.1
AOCI	2,577.50	1,849.10	3,452.80
Fixed maturities	'	'	'
Components Of Accumulated Other Comprehensive Income Loss [Line Items]	'	'	'
Fixed maturities, net of OTTI	4,759.70	'	7,067.20
Equity securities	'	'	'
Components Of Accumulated Other Comprehensive Income Loss [Line Items]	'	'	'
Equity securities, available-for-sale	$31.80	'	$35.80

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, 2014		Mar. 31, 2013
Available-for-sale securities, Before-Tax Amount:	'		'
Net unrealized gains/losses on Other	($0.30)		$11.60
Other-than-temporary impairments	15.6		10.9
Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	-8.8		-14.6
DAC/VOBA	-459.7	[1]	386	[1]
Sales inducements	-16.7		28.4
Net realized gains/losses on available-for-sale securities	1,102.50		-376.1
Available-for-sale securities, Income Tax:	'		'
Net unrealized gains/losses on Other	0.1		-4.1
Change in OTTI, Income Tax	-5.5		-3.8
Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	3.1		5.1
DAC/VOBA	160.9		-135.1
Sales inducements	5.8		-9.9
Net realized gains/losses on available-for-sale securities	-387		128.8
Available-for-sale securities, After-Tax Amount:	'		'
Net unrealized gains/losses on Other	-0.2		7.5
Change in OTTI, After-Tax Amount	10.1		7.1
Adjustments for amounts recognized in Net realized capital gains (losses) in the Condensed Consolidated Statements of Operations	-5.7		-9.5
DAC/VOBA	-298.8		250.9
Sales inducements	-10.9		18.5
Net realized gains/losses on available-for-sale securities	715.5		-247.3
Derivatives, Before-Tax Amount:	'		'
Net unrealized capital gains/losses arising during the period, Before-Tax Amount	24.6	[2]	-12.7	[2]
Adjustments for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	-1.4		-0.2
Net unrealized gains/losses on derivatives	23.2		-12.9
Derivatives, Income Tax:	'		'
Net unrealized capital gains/losses arising during the period, Income Tax	-8.6		4.5
Adjustments for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	0.5		0.1
Net unrealized gains/losses on derivatives	-8.1		4.6
Derivatives, After-Tax Amount:	'		'
Net unrealized capital gains/losses arising during the period, After-Tax Amount	16		-8.2
Adjustments for amounts recognized in Net investment income in the Condensed Consolidated Statements of Operations	-0.9		-0.1
Net unrealized gains/losses on derivatives	15.1		-8.3
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		-3.5
Net pension and other post-employment benefit liability	-3.4		-3.5
Other comprehensive income (loss), before tax	1,122.30		-392.5
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)	-393.9		134.6
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		-2.3
Net pension and other post-employment benefit liability	-2.2		-2.3
Other comprehensive income (loss), after tax	728.4		-257.9
Fixed maturities	'		'
Available-for-sale securities, Before-Tax Amount:	'		'
Net unrealized gains/losses on securities	1,588.40		-792.1
Available-for-sale securities, Income Tax:	'		'
Net unrealized gains/losses on securities	-555.6		274.4
Available-for-sale securities, After-Tax Amount:	'		'
Net unrealized gains/losses on securities	1,032.80		-517.7
Equity securities	'		'
Available-for-sale securities, Before-Tax Amount:	'		'
Net unrealized gains/losses on securities	-16		-6.3
Available-for-sale securities, Income Tax:	'		'
Net unrealized gains/losses on securities	4.2		2.2
Available-for-sale securities, After-Tax Amount:	'		'
Net unrealized gains/losses on securities	($11.80)		($4.10)
[1]	See Note 5. Deferred Policy Acquisition Costs and Value of Business Acquired to these Condensed Consolidated Financial Statements for additional information.
[2]	See Note 3. Derivative Financial Instruments to these Condensed Consolidated Financial Statements for additional information.

Income_Taxes_Income_Tax_Reconc

Income Taxes - Income Tax Reconciliation (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]	'	'	'
Income (loss) before income taxes	$302.30	($214.30)	'
Tax rate	35.00%	35.00%	'
Income tax expense (benefit) at federal statutory rate	105.8	-75	'
Valuation allowance	-53	104.2	'
Dividends received deduction	-25.8	-21.9	'
Audit settlement	-1.1	-2.1	'
State tax expense (benefit)	6.5	4.1	'
Noncontrolling interest	-4.7	4.7	'
Tax credits	0	-4.6	'
Non-deductible expenses	0.4	4.3	'
Other	2.6	-2.5	'
Income tax expense (benefit)	30.7	11.2	'
Valuation allowance, deferred tax assets	2,800	'	2,800
Allocated to continuing operations	'	'	'
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]	'	'	'
Valuation allowance, deferred tax assets	3,100	'	3,200
Valuation allowance, deferred tax asset, change in amount	-53	104.2	'
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, deferred tax asset, change in amount	$0	$0	'

Financing_Agreements_Narrative

Financing Agreements - Narrative (Details) (USD $)

3 Months Ended

0 Months Ended

12 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Feb. 14, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Jan. 24, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Jan. 15, 2014

Jan. 02, 2014

Revolving Credit agreement

Revolving Credit agreement

Revolving Credit agreement

Letter of Credit

Letter of Credit

ING Bank

Lion Connecticut Holdings Debentures

Lion Connecticut Holdings Debentures

Lion Connecticut Holdings Debentures

Trust Notes

Trust Notes

Aetna Notes

Aetna Notes

Aetna Notes

Minimum

Maximum

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Fees paid for guarantee

'

'

'

'

'

'

'

0.10%

'

'

'

'

'

Basis spread

'

'

1.75%

2.00%

'

'

'

'

'

'

'

'

'

Minimum principal outstanding in year two

'

'

'

'

'

'

'

'

$400,000,000

'

'

'

'

Minimum principal outstanding in year three

'

'

'

'

'

'

'

'

300,000,000

'

'

'

'

Minimum principal outstanding in year four

'

'

'

'

'

'

'

'

200,000,000

'

'

'

'

Minimum principal outstanding in year five

'

'

'

'

'

'

'

'

100,000,000

'

'

'

'

Minimum principal outstanding in year six

'

'

'

'

'

'

'

'

0

'

'

'

'

Quarterly fee to guarantor of notes if minimum principal balance is not met

'

'

'

'

'

'

'

'

'

0.50%

1.25%

'

'

Outstanding par amount of guaranteed debentures

506,100,000

'

'

'

'

'

'

'

'

'

'

'

'

Revolving lines of credit

9,977,900,000

'

3,000,000,000

3,500,000,000

'

'

150,000,000

1,275,000,000

'

'

'

500,000,000

565,000,000

Credit facility, sublimit, maximum borrowing capacity

'

'

750,000,000

'

'

'

'

'

'

'

'

'

'

Outstanding borrowings

5,599,900,000

'

'

'

0

829,900,000

'

673,100,000

'

'

'

'

'

Payments of financing costs

$29,300,000

$45,400,000

$700,000

'

'

'

'

'

'

'

'

'

'

Financing_Agreements_Longterm_

Financing Agreements - Long-term Debt (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debt Instrument [Line Items]	'	'
Long-term debt	$3,515	$3,514.70
Less: Current portion of long-term debt	0	0
Long-term debt	3,515	3,514.70
Debentures | 7.25% Lion Connecticut Holdings Inc. debentures, due 2023	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	158.7	158.6
Annual interest rate on loan	7.25%	'
Debentures | 7.63% Lion Connecticut Holdings Inc. debentures, due 2026	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	232.2	232.1
Annual interest rate on loan	7.63%	'
Debentures | 6.97% Lion Connecticut Holdings Inc. debentures, due 2036	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	108.6	108.6
Annual interest rate on loan	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%	'
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%	'
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%	'
Senior Notes | 2.9% Senior Notes, due 2018	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	998.6	998.5
Annual interest rate on loan	2.90%	'
Senior Notes | 5.65% Fixed-to-Floating Rate Junior Subordinated Notes, due 2053	'	'
Debt Instrument [Line Items]	'	'
Annual interest rate on loan	5.65%	'
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%	'
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

Financing_Agreements_Credit_Fa

Financing Agreements - Credit Facilities (Details) (USD $)	Mar. 31, 2014
Line of Credit Facility [Line Items]	'
Capacity	$9,977,900,000
Utilization	5,599,900,000
Unused Commitment	4,372,700,000
ING Bank	'
Line of Credit Facility [Line Items]	'
Capacity	1,275,000,000
Utilization	673,100,000
Unused Commitment	601,900,000
Secured facilities	'
Line of Credit Facility [Line Items]	'
Capacity	265,000,000
Utilization	259,700,000
Unused Commitment	0
Secured and Uncommitted | Voya Financial, Inc.	'
Line of Credit Facility [Line Items]	'
Capacity	10,000,000
Utilization	4,700,000
Unused Commitment	0
Committed and Conditional | ReliaStar Life Insurance Company	'
Line of Credit Facility [Line Items]	'
Capacity	255,000,000
Utilization	255,000,000
Unused Commitment	0
Unsecured and Uncommitted	'
Line of Credit Facility [Line Items]	'
Capacity	1,700,000
Utilization	1,700,000
Unused Commitment	0
Unsecured and Uncommitted | Voya Financial, Inc.	'
Line of Credit Facility [Line Items]	'
Capacity	1,700,000
Utilization	1,700,000
Unused Commitment	0
Unsecured and Committed	'
Line of Credit Facility [Line Items]	'
Capacity	9,711,200,000
Utilization	5,338,500,000
Unused Commitment	4,372,700,000
Unsecured and Committed | Voya Financial, Inc.	'
Line of Credit Facility [Line Items]	'
Capacity	3,000,000,000
Utilization	829,900,000
Unused Commitment	2,170,100,000
Unsecured and Committed | Security Life of Denver International Limited	'
Line of Credit Facility [Line Items]	'
Capacity	150,000,000
Utilization	147,000,000
Unused Commitment	3,000,000
Unsecured and Committed | Voya Financial, Inc./ Langhorne I, LLC	'
Line of Credit Facility [Line Items]	'
Capacity	500,000,000
Utilization	0
Unused Commitment	500,000,000
Unsecured and Committed | Voya Financial, Inc./ Security Life of Denver International Limited	'
Line of Credit Facility [Line Items]	'
Capacity	750,000,000
Utilization	750,000,000
Unused Commitment	0
Unsecured and Committed | Security Life of Denver International Limited	'
Line of Credit Facility [Line Items]	'
Capacity	1,125,000,000
Utilization	631,600,000
Unused Commitment	493,400,000
Unsecured and Committed | Voya Financial, Inc. / Security Life of Denver International Limited	'
Line of Credit Facility [Line Items]	'
Capacity	750,000,000
Utilization	750,000,000
Unused Commitment	0
Unsecured and Committed | Voya Financial, Inc. / Security Life of Denver International Limited	'
Line of Credit Facility [Line Items]	'
Capacity	250,000,000
Utilization	250,000,000
Unused Commitment	0
Unsecured and Committed | Voya Financial, Inc. / Security Life of Denver International Limited	'
Line of Credit Facility [Line Items]	'
Capacity	475,000,000
Utilization	475,000,000
Unused Commitment	0
Unsecured and Committed | Voya Financial, Inc. / Roaring River II LLC	'
Line of Credit Facility [Line Items]	'
Capacity	995,000,000
Utilization	588,000,000
Unused Commitment	407,000,000
Unsecured and Committed | Voya Financial, Inc. / Roaring River III LLC	'
Line of Credit Facility [Line Items]	'
Capacity	1,151,200,000
Utilization	630,000,000
Unused Commitment	521,200,000
Unsecured and Committed | Voya Financial, Inc./ Roaring River IV LLC	'
Line of Credit Facility [Line Items]	'
Capacity	565,000,000
Utilization	287,000,000
Unused Commitment	$278,000,000

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)

3 Months Ended

12 Months Ended

0 Months Ended

In Millions, unless otherwise specified

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Sep. 26, 2012

Apr. 11, 2014

Federal Home Loan Bank Borrowings

Federal Home Loan Bank Borrowings

Federal Home Loan Bank Borrowings

Federal Home Loan Bank Borrowings

Investment purchase commitment

Investment purchase commitment

Investment purchase commitment

Investment purchase commitment

Healthcare Strategies, Inc., Plan

Subsequent Event

Line of Credit

Line of Credit

Letter of Credit

Letter of Credit

Consolidated investment entities

Consolidated investment entities

plaintiff

Healthcare Strategies, Inc., Plan

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Off-balance sheet commitment to purchase investments

'

'

'

'

'

'

$1,100

$1,200

$323.20

$321.30

'

'

Undiscounted liability of future guaranty fund assessments

26.9

19.2

'

'

'

'

'

'

'

'

'

'

Future credits to premium taxes

26.5

18.4

'

'

'

'

'

'

'

'

'

'

Amount of borrowing capacity

'

'

1,800

1,800

255

265

'

'

'

'

'

'

Fair value of assets pledged as collateral

'

'

2,100

2,000

301.2

294.1

'

'

'

'

'

'

Possible losses in excess of amounts accrued

100

'

'

'

'

'

'

'

'

'

'

'

Number of plaintiffs

'

'

'

'

'

'

'

'

'

'

15,000

'

Damages sought by plaintiffs

'

'

'

'

'

'

'

'

'

'

'

$15

Commitments_and_Contingencies_2

Commitments and Contingencies (Restricted Assets) (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Loss Contingencies [Line Items]	'		'
Fixed maturity collateral pledged to FHLB	$2,365.60		$2,333.40
FHLB restricted stock	99	[1]	99.1	[1]
Other fixed maturities-state deposits	257.5		251
Securities pledged	1,271.30	[2]	1,465.70	[2]
Total restricted assets	3,993.40		4,149.20
Securities pledged as collateral	'		'
Loss Contingencies [Line Items]	'		'
Fair value of loaned securities	449.4		435.4
Fair value of securities delivered as collateral	$821.90		$1,000
[1]	Included in Other investments in the Condensed Consolidated Balance Sheets.
[2]	Includes the fair value of loaned securities of $449.4 and $435.4 as of MarchB 31, 2014 and DecemberB 31, 2013, respectively, which is included in Securities pledged on the Condensed Consolidated Balance Sheets. In addition, as of MarchB 31, 2014 and DecemberB 31, 2013, the Company delivered securities as collateral of $821.9 and $1.0 billion, respectively, which was included in Securities pledged in the Condensed Consolidated Balance Sheets.

Related_Party_Transactions_Inc

Related Party Transactions - Income Statement Disclosures (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Related Party Transaction [Line Items]	'		'
Income	$11		$7.80
Expense incurred	13.6		30.4
NN Group	'		'
Related Party Transaction [Line Items]	'		'
Income	0.6	[1]	0.4	[1]
Expense incurred	0.1	[1]	3.3	[1]
ING Group	'		'
Related Party Transaction [Line Items]	'		'
Income	5.6		4.2
Expense incurred	3.5		5
ING Bank N.V.	'		'
Related Party Transaction [Line Items]	'		'
Income	-0.5	[1]	-0.4	[1]
Expense incurred	6.6	[1]	18.4	[1]
Other	'		'
Related Party Transaction [Line Items]	'		'
Income	5.3		3.6
Expense incurred	$3.40		$3.70
[1]	See "Derivatives" section below.

Related_Party_Transactions_Bal

Related Party Transactions - Balance Sheet Disclosures (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Related Party Transaction [Line Items]	'	'
Assets	$23	$18.20
Liabilities	5.8	8.9
NN Group	'	'
Related Party Transaction [Line Items]	'	'
Assets	0.5	0.5
Liabilities	0.1	0.2
ING Group	'	'
Related Party Transaction [Line Items]	'	'
Assets	9	1.3
Liabilities	0.9	0.9
ING Bank N.V.	'	'
Related Party Transaction [Line Items]	'	'
Assets	11.1	13.8
Liabilities	3.2	5.8
Other	'	'
Related Party Transaction [Line Items]	'	'
Assets	2.4	2.6
Liabilities	$1.60	$2

Related_Party_Transactions_Cre

Related Party Transactions - Credit Facilities (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013		Dec. 31, 2013
Related Party Transaction [Line Items]	'		'		'
Due to affiliate	$5.80		'		$8.90
Expense incurred	13.6		30.4		'
ING Bank N.V.	'		'		'
Related Party Transaction [Line Items]	'		'		'
Due to affiliate	3.2		'		5.8
Expense incurred	6.6	[1]	18.4	[1]	'
ING Bank N.V. | Captive Reinsurance Subsidiary	'		'		'
Related Party Transaction [Line Items]	'		'		'
Letters of Credit Outstanding, Amount	15		'		'
ING Bank N.V. | Senior Unsecured Credit Facility	'		'		'
Related Party Transaction [Line Items]	'		'		'
Due to affiliate	3.1		'		4.9
Expense incurred	3.7		17.7		'
Indemnification Agreement [Member] | ING Bank N.V. | NN Group	'		'		'
Related Party Transaction [Line Items]	'		'		'
Guarantor Obligations, Maximum Exposure, Undiscounted	$15		'		'
[1]	See "Derivatives" section below.

Related_Party_Transactions_Der

Related Party Transactions - Derivatives (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Related Party Transaction [Line Items]	'	'	'
Net realized gains (losses) on derivatives	($221.30)	($762)	'
ING Bank and ING V	'	'	'
Related Party Transaction [Line Items]	'	'	'
Notional amount of derivatives	462.9	'	518.9
Derivatives, fair value	9.2	'	10.5
Net realized gains (losses) on derivatives	-0.7	-1.4	'
ING Bank and ING V | Interest rate swaps	'	'	'
Related Party Transaction [Line Items]	'	'	'
Notional amount of derivatives	214.3	'	328.8
ING Bank and ING V | Equity options	'	'	'
Related Party Transaction [Line Items]	'	'	'
Notional amount of derivatives	248.6	'	190.1
ING V	'	'	'
Related Party Transaction [Line Items]	'	'	'
Maximum potential future net exposure on sale of credit default swaps	$39.80	'	$43.50

Consolidated_Investment_Entiti2

Consolidated Investment Entities (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Variable Interest Entity [Line Items]	'	'
Investments	$88,891.40	$87,050.80
Consolidated investment entities	'	'
Variable Interest Entity [Line Items]	'	'
Investments	656.2	654
Consolidated collateral loan obligations	13	12
Consolidated funds	35	35
Assets of consolidated investment entities	9,551.50	8,999.40
Liabilities of consolidated investment entities	6,493	6,064.90
Consolidated investment entities | VOEs	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	3,477.50	3,308.50
Liabilities of consolidated investment entities	478.1	435.3
Consolidated investment entities | VOEs | Cash and Cash Equivalents	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	71.4	68.2
Consolidated investment entities | VOEs | Limited Partnerships/Corporations	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	3,382.40	3,218.60
Consolidated investment entities | VOEs | Other assets	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	23.7	21.7
Consolidated investment entities | VOEs | Other Liabilities	'	'
Variable Interest Entity [Line Items]	'	'
Liabilities of consolidated investment entities	478.1	435.3
Consolidated investment entities | VIEs	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	6,074	5,690.90
Liabilities of consolidated investment entities	6,014.90	5,629.60
Consolidated investment entities | VIEs | Cash and Cash Equivalents	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	498.6	642.5
Consolidated investment entities | VIEs | Corporate Loans	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	5,490.70	4,965.30
Consolidated investment entities | VIEs | Other assets	'	'
Variable Interest Entity [Line Items]	'	'
Assets of consolidated investment entities	84.7	83.1
Consolidated investment entities | VIEs | Collateralized Debt Obligations	'	'
Variable Interest Entity [Line Items]	'	'
Liabilities of consolidated investment entities	5,525.50	5,161.60
Consolidated investment entities | VIEs | Other Liabilities	'	'
Variable Interest Entity [Line Items]	'	'
Liabilities of consolidated investment entities	$489.40	$468

Consolidated_Investment_Entiti3

Consolidated Investment Entities (Fair Value Measurement) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Variable Interest Entity [Line Items]	'	'
Revolving lines of credit	$9,977,900,000	'
Outstanding borrowings	5,599,900,000	'
Transfers in to Level 3	13,900,000	'
VOEs | Private Equity Funds	'	'
Variable Interest Entity [Line Items]	'	'
Revolving lines of credit	400,000,000	400,000,000
Asset coverage, percentage	350.00%	'
Outstanding borrowings	212,200,000	212,200,000
VOEs | Securities Sold under Agreements to Repurchase	'	'
Variable Interest Entity [Line Items]	'	'
Outstanding borrowings	176,000,000	147,500,000
VOEs | LIBOR | Private Equity Funds	'	'
Variable Interest Entity [Line Items]	'	'
Description of variable rate basis	'LIBOR	'
Basis spread	2.35%	'
VOEs | EURIBOR | Private Equity Funds	'	'
Variable Interest Entity [Line Items]	'	'
Description of variable rate basis	'EURIBOR	'
Basis spread	2.50%	'
VIEs | Corporate Loans | Senior Secured Corporate Loans	'	'
Variable Interest Entity [Line Items]	'	'
Unpaid principal exceeds fair value, amount	8,700,000	9,700,000
Default of collateral assets, percentage	1.00%	1.00%
VIEs | Corporate Loans | Senior Secured Corporate Loans | LIBOR or Prime | Maximum	'	'
Variable Interest Entity [Line Items]	'	'
Basis spread	9.80%	'
VIEs | Corporate Loans | Senior Secured Corporate Loans | LIBOR	'	'
Variable Interest Entity [Line Items]	'	'
Description of variable rate basis	'LIBOR	'
VIEs | Corporate Loans | Senior Secured Corporate Loans | PRIME	'	'
Variable Interest Entity [Line Items]	'	'
Description of variable rate basis	'PRIME	'
VIEs | Collateralized Debt Obligations | Senior Secured Floating Rate Leveraged Loans	'	'
Variable Interest Entity [Line Items]	'	'
Unpaid principal exceeds fair value, amount	$141,000,000	$139,600,000
Weighted average maturity	'9 years 1 month 6 days	'
VIEs | Collateralized Debt Obligations | Senior Secured Floating Rate Leveraged Loans | LIBOR	'	'
Variable Interest Entity [Line Items]	'	'
Description of variable rate basis	'LIBOR	'
VIEs | Collateralized Debt Obligations | Senior Secured Floating Rate Leveraged Loans | LIBOR | Minimum	'	'
Variable Interest Entity [Line Items]	'	'
Basis spread	0.22%	'
VIEs | Collateralized Debt Obligations | Senior Secured Floating Rate Leveraged Loans | LIBOR | Maximum	'	'
Variable Interest Entity [Line Items]	'	'
Basis spread	7.00%	'

Consolidated_Investment_Entiti4

Consolidated Investment Entities (Fair Value Hierarchy) (Details) (Measured at fair value on a recurring basis, USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	$9,443.10	$8,894.60
Liabilities	5,525.50	5,161.60
Level 1	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	570	710.7
Liabilities	0	0
Level 2	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	6,095.60	5,424.30
Liabilities	0	0
Level 3	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	2,777.50	2,759.60
Liabilities	5,525.50	5,161.60
VOEs | Cash and Cash Equivalents	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	71.4	68.2
VOEs | Cash and Cash Equivalents | Level 1	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	71.4	68.2
VOEs | Cash and Cash Equivalents | Level 2	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	0	0
VOEs | Cash and Cash Equivalents | Level 3	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	0	0
VOEs | Limited Partnerships	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	3,382.40	3,218.60
VOEs | Limited Partnerships | Level 1	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	0	0
VOEs | Limited Partnerships | Level 2	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	629.9	484.5
VOEs | Limited Partnerships | Level 3	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	2,752.50	2,734.10
VIEs | Cash and Cash Equivalents	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	498.6	642.5
VIEs | Cash and Cash Equivalents | Level 1	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	498.6	642.5
VIEs | Cash and Cash Equivalents | Level 2	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	0	0
VIEs | Cash and Cash Equivalents | Level 3	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	0	0
VIEs | Corporate Loans	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	5,490.70	4,965.30
VIEs | Corporate Loans | Level 1	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	0	0
VIEs | Corporate Loans | Level 2	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	5,465.70	4,939.80
VIEs | Corporate Loans | Level 3	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets	25	25.5
VIEs | Collateralized Debt Obligations	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Liabilities	5,525.50	5,161.60
VIEs | Collateralized Debt Obligations | Level 1	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Liabilities	0	0
VIEs | Collateralized Debt Obligations | Level 2	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Liabilities	0	0
VIEs | Collateralized Debt Obligations | Level 3	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Liabilities	$5,525.50	$5,161.60

Consolidated_Investment_Entiti5

Consolidated Investment Entities (Fair Value Measurements for Level 3 Assets and Liabilities) (Details) (USD $)

3 Months Ended

In Millions, unless otherwise specified

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Collateralized Debt Obligations

Collateralized Debt Obligations

Loans Receivable

Loans Receivable

Measured at fair value on a recurring basis

Measured at fair value on a recurring basis

VIEs

VIEs

VIEs

VIEs

VOEs

VOEs

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Consolidated investment entities

Level 3

Level 3

Loans Receivable

Loans Receivable

Collateralized Debt Obligations

Collateralized Debt Obligations

Limited Partnerships

Limited Partnerships

VIEs

VIEs

VIEs

VIEs

Measured at fair value on a recurring basis

Measured at fair value on a recurring basis

Measured at fair value on a recurring basis

Measured at fair value on a recurring basis

Measured at fair value on a recurring basis

Measured at fair value on a recurring basis

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Variable Interest Entity [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value, Assets, beginning balance

'

$2,759.60

$2,931.20

$25.50

$0

'

'

$2,734.10

$2,931.20

'

'

$25

$25.50

Gains (Losses) Included in the Condensed Consolidated Statement of Operations

'

-0.4

-15.8

0.2

0

'

'

-0.6

-15.8

'

'

'

'

Purchases

'

5.1

65.9

0

0

'

'

5.1

65.9

'

'

'

'

Sales

'

-0.7

-0.6

-0.7

0

'

'

0

-0.6

'

'

'

'

Transfers in to Level 3

13.9

13.9

0

0

0

'

'

13.9

0

'

'

'

'

Transfers out of Level 3

'

0

0

0

0

'

'

0

0

'

'

'

'

Fair Value, Assets, ending balance

'

2,777.50

2,980.70

25

0

'

'

2,752.50

2,980.70

'

'

25

25.5

Liabilities, Fair Value, beginning balance

'

5,161.60

3,829.40

'

'

5,161.60

3,829.40

'

'

5,525.50

5,161.60

'

'

Gains (Losses) Included in the Condensed Consolidated Statement of Operations

'

1.1

6.7

'

'

1.1

6.7

'

'

'

'

'

'

Purchases

'

409.4

612.9

'

'

409.4

612.9

'

'

'

'

'

'

Sales

'

-46.6

-0.9

'

'

-46.6

-0.9

'

'

'

'

'

'

Transfer in to Level 3

'

0

0

'

'

0

0

'

'

'

'

'

'

Transfer out of Level 3

'

0

0

'

'

0

0

'

'

'

'

'

'

Liabilities, Fair Value, ending balance

'

$5,525.50

$4,448.10

'

'

$5,525.50

$4,448.10

'

'

$5,525.50

$5,161.60

'

'

Consolidated_Investment_Entiti6

Consolidated Investment Entities (Maximum Exposure) (Details) (VIEs, USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
VIEs	'	'
Variable Interest Entity [Line Items]	'	'
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net	$0	$0
Maximum exposure to loss	0	0
Assets of nonconsolidated investment entities	1,472.90	1,640.40
Liabilities of nonconsolidated investment entities	$1,497.90	$1,639

Segments_Narrative_Details

Segments (Narrative) (Details)	3 Months Ended			12 Months Ended
	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2011
	segments	Retirement Solutions	Insurance Solutions	Closed Blocks
		segments	segments	broker_dealer
Segment Reporting Information [Line Items]	'	'	'	'
Number of reportable segments	3	'	'	'
Number of broker dealers sold	'	'	'	3
Number of operating segments	5	2	2	'

Segments_Operating_Earnings_Be

Segments (Operating Earnings Before Income Taxes) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	$231.10	$256.70
Closed Block Variable Annuity	20.2	-477.1
Net investment gains (losses) and related charges and adjustments	57.6	41.8
Net guaranteed benefit hedging gains (losses) and related charges and adjustments	6.4	3.1
Loss related to businesses exited through reinsurance or divestment	-10.5	-16.9
Income (loss) attributable to noncontrolling interests	13.5	-13.5
Other adjustments to operating income	-16	-8.4
Income (loss) before income taxes	302.3	-214.3
Retirement Solutions | Retirement	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	114.9	137.8
Retirement Solutions | Annuities	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	54.8	54.3
Investment Management	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	49.8	30.1
Insurance Solutions | Individual Life	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	31.1	50.8
Insurance Solutions | Employee Benefits	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	16.9	12.4
Total Ongoing Businesses	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	267.5	285.4
Corporate	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	-37.3	-50.1
Closed Blocks	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	0.9	21.4
Closed Blocks | Closed Block Institutional Spread Products	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	5.4	22.1
Closed Blocks | Closed Block Other	'	'
Segment Reporting Information [Line Items]	'	'
Total operating earnings before income taxes	($4.50)	($0.70)

Segments_Operating_Revenues_De

Segments (Operating Revenues) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]	'	'
Total operating revenues	$2,195.40	$2,090.50
Closed Block Variable Annuity	284.6	-444
Net realized investment gains (losses) and related charges and adjustments	49.6	30.4
Gain (loss) on change in fair value of derivatives related to guaranteed benefits	-23.9	20.6
Revenues related to businesses exited through reinsurance or divestment	19	-12.1
Revenues (loss) attributable to noncontrolling interests	60.8	40.3
Other adjustments to operating revenues	85.4	92.9
Total revenues	2,670.90	1,818.60
Intersegment	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	39.3	39.3
Retirement Solutions | Retirement	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	598.5	583.2
Retirement Solutions | Annuities	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	354.4	307.6
Investment Management	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	160.5	131.9
Insurance Solutions | Individual Life	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	692.2	687.1
Insurance Solutions | Employee Benefits	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	338.9	318.1
Total Ongoing Businesses	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	2,144.50	2,027.90
Corporate	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	25.3	17.1
Closed Blocks	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	25.6	45.5
Closed Blocks | Closed Block Institutional Spread Products	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	17.6	38.3
Closed Blocks | Closed Block Other	'	'
Segment Reporting Information [Line Items]	'	'
Total operating revenues	$8	$7.20

Segments_Total_Assets_Details

Segments (Total Assets) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Assets	$223,510.70	$221,023.20
Parent | Retirement Solutions | Retirement	'	'
Segment Reporting Information [Line Items]	'	'
Assets	94,654.80	92,336.70
Parent | Retirement Solutions | Annuities	'	'
Segment Reporting Information [Line Items]	'	'
Assets	26,748.30	26,528.30
Parent | Investment Management	'	'
Segment Reporting Information [Line Items]	'	'
Assets	391.9	463.3
Parent | Insurance Solutions | Individual Life	'	'
Segment Reporting Information [Line Items]	'	'
Assets	25,920.80	25,592.20
Parent | Insurance Solutions | Employee Benefits	'	'
Segment Reporting Information [Line Items]	'	'
Assets	2,559.70	2,518.50
Parent | Total Ongoing Businesses	'	'
Segment Reporting Information [Line Items]	'	'
Assets	150,275.50	147,439
Parent | Corporate	'	'
Segment Reporting Information [Line Items]	'	'
Assets	4,566.80	4,802.80
Parent | Closed Blocks	'	'
Segment Reporting Information [Line Items]	'	'
Assets	59,797.40	60,460.10
Parent | Closed Blocks | Closed Block Variable Annuity	'	'
Segment Reporting Information [Line Items]	'	'
Assets	49,451.60	49,483.50
Parent | Closed Blocks | Closed Block Institutional Spread Products	'	'
Segment Reporting Information [Line Items]	'	'
Assets	2,711.30	3,390.10
Parent | Closed Blocks | Closed Block Other	'	'
Segment Reporting Information [Line Items]	'	'
Assets	7,634.50	7,586.50
Parent | Total Segment	'	'
Segment Reporting Information [Line Items]	'	'
Assets	214,639.70	212,701.90
Noncontrolling Interest	'	'
Segment Reporting Information [Line Items]	'	'
Assets	$8,871	$8,321.30

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information - Balance Sheets (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Investments:	'	'	'	'
Fixed maturities, available-for-sale, at fair value	$70,449.70	$68,317.80	'	'
Fixed maturities, at fair value using the fair value option	3,082.10	2,935.30	'	'
Equity securities, available-for-sale	276.6	314.4	'	'
Short-term investments	1,046.20	1,048.10	'	'
Mortgage loans on real estate, net of valuation allowance	9,258.10	9,312.20	'	'
Policy loans	2,119.70	2,147	'	'
Limited partnerships/corporations	218.9	236.4	'	'
Derivatives	1,044.70	1,149.30	'	'
Intercompany Transaction, Investment In Subsidiary	0	0	'	'
Other Investments	124.1	124.6	'	'
Securities pledged	1,271.30	1,465.70	'	'
Total investments	88,891.40	87,050.80	'	'
Cash and cash equivalents	2,499.80	2,840.80	2,787.70	1,786.80
Short-term investments under securities loan agreements, including collateral delivered	558.6	552.9	'	'
Accrued investment income	935.6	897.1	'	'
Reinsurance recoverable	6,785.80	6,702.20	'	'
Deferred policy acquisition costs and Value of business acquired	4,860.80	5,351.60	4,019.60	3,656.30
Sales inducements to contract holders	258.6	279	'	'
Deferred income taxes	'	162.1	'	'
Goodwill and other intangible assets	312.5	323.7	'	'
Loans to subsidiaries and affiliates	0	0	'	'
Due from subsidiaries and affiliates	0	0	'	'
Other assets	1,016.10	1,036.50	'	'
Assets related to consolidated investment entities:	'	'	'	'
Limited partnerships/corporations, at fair value	3,382.40	3,218.60	'	'
Cash and cash equivalents	570	710.7	'	'
Corporate loans, at fair value using the fair value option	5,490.70	4,965.30	'	'
Other assets	108.4	104.8	'	'
Assets held in separate accounts	107,840	106,827.10	'	'
Total assets	223,510.70	221,023.20	'	'
Liabilities and Shareholder's Equity:	'	'	'	'
Future policy benefits	14,532.60	14,098.40	'	'
Contract owner account balances	69,723.50	69,908.30	'	'
Payables under securities loan agreements, including collateral held	864.5	769.4	'	'
Short-term debt with affiliates	0	0	'	'
Long-term debt	3,515	3,514.70	'	'
Funds held under reinsurance agreements	1,174.50	1,181.50	'	'
Derivatives	1,013.50	1,351.80	'	'
Pension and other post-employment provisions	467.5	474.9	'	'
Current income taxes	3.5	44.1	'	'
Deferred income taxes	272.1	0	'	'
Due to subsidiaries and affiliates	0	0	'	'
Other liabilities	1,243	1,274.10	'	'
Liabilities related to consolidated investment entities:	'	'	'	'
Collateralized loan obligations notes, at fair value using the fair value option	5,525.50	5,161.60	'	'
Other liabilities	967.5	903.3	'	'
Liabilities related to separate accounts	107,840	106,827.10	'	'
Total liabilities	207,142.70	205,509.20	'	'
Shareholder's equity:	'	'	'	'
Total Voya Financial, Inc. shareholders' equity	14,001.50	13,272.20	'	'
Noncontrolling interest	2,366.50	2,241.80	'	'
Total shareholders' equity	16,368	15,514	15,598.90	16,061.20
Total liabilities and shareholder's equity	223,510.70	221,023.20	'	'
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	80.9	76.6	'	'
Short-term investments	21	0	'	'
Mortgage loans on real estate, net of valuation allowance	0	0	'	'
Policy loans	0	0	'	'
Limited partnerships/corporations	0	0	'	'
Derivatives	66.9	69.9	'	'
Intercompany Transaction, Investment In Subsidiary	16,071.50	15,103.80	'	'
Other Investments	0	0	'	'
Securities pledged	0	0	'	'
Total investments	16,240.30	15,250.30	'	'
Cash and cash equivalents	441.5	640.2	384.2	357.5
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	0	0	'	'
Sales inducements to contract holders	0	0	'	'
Deferred income taxes	'	204.4	'	'
Goodwill and other intangible assets	0	0	'	'
Loans to subsidiaries and affiliates	370	211.3	'	'
Due from subsidiaries and affiliates	15.5	26.9	'	'
Other assets	57.4	43.4	'	'
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	17,155.40	16,407.20	'	'
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	180	0	'	'
Long-term debt	2,996.80	2,996.70	'	'
Funds held under reinsurance agreements	0	0	'	'
Derivatives	110.4	114	'	'
Pension and other post-employment provisions	0	0	'	'
Current income taxes	1.8	-47	'	'
Deferred income taxes	-210.1	'	'	'
Due to subsidiaries and affiliates	13.6	0.2	'	'
Other liabilities	61.4	71.1	'	'
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	3,153.90	3,135	'	'
Shareholder's equity:	'	'	'	'
Total Voya Financial, Inc. shareholders' equity	14,001.50	13,272.20	'	'
Noncontrolling interest	0	0	'	'
Total shareholders' equity	14,001.50	13,272.20	'	'
Total liabilities and shareholder's equity	17,155.40	16,407.20	'	'
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	4.4	20.6	'	'
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	'	'
Intercompany Transaction, Investment In Subsidiary	13,215.80	12,572.70	'	'
Other Investments	0.2	0.4	'	'
Securities pledged	0	0	'	'
Total investments	13,220.40	12,593.70	'	'
Cash and cash equivalents	1.5	1.1	0.3	0.4
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	0	0	'	'
Sales inducements to contract holders	0	0	'	'
Deferred income taxes	'	0	'	'
Goodwill and other intangible assets	0	0	'	'
Loans to subsidiaries and affiliates	0.1	0	'	'
Due from subsidiaries and affiliates	1	0.6	'	'
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	13,223	12,595.40	'	'
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	260.5	125.4	'	'
Long-term debt	514.8	514.7	'	'
Funds held under reinsurance agreements	0	0	'	'
Derivatives	0	0	'	'
Pension and other post-employment provisions	0	0	'	'
Current income taxes	13.9	10.6	'	'
Deferred income taxes	0.3	'	'	'
Due to subsidiaries and affiliates	1.5	1.5	'	'
Other liabilities	5.5	14.4	'	'
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	796.5	666.6	'	'
Shareholder's equity:	'	'	'	'
Total Voya Financial, Inc. shareholders' equity	12,426.50	11,928.80	'	'
Noncontrolling interest	0	0	'	'
Total shareholders' equity	12,426.50	11,928.80	'	'
Total liabilities and shareholder's equity	13,223	12,595.40	'	'
Non-Guarantor Subsidiaries	'	'	'	'
Investments:	'	'	'	'
Fixed maturities, available-for-sale, at fair value	70,465.10	68,333.20	'	'
Fixed maturities, at fair value using the fair value option	3,082.10	2,935.30	'	'
Equity securities, available-for-sale	191.3	217.2	'	'
Short-term investments	1,025.20	1,048.10	'	'
Mortgage loans on real estate, net of valuation allowance	9,258.10	9,312.20	'	'
Policy loans	2,119.70	2,147	'	'
Limited partnerships/corporations	218.9	236.4	'	'
Derivatives	1,155.10	1,261.80	'	'
Intercompany Transaction, Investment In Subsidiary	0	0	'	'
Other Investments	123.9	124.2	'	'
Securities pledged	1,271.30	1,465.70	'	'
Total investments	88,910.70	87,081.10	'	'
Cash and cash equivalents	2,056.80	2,199.50	2,403.20	1,428.90
Short-term investments under securities loan agreements, including collateral delivered	548	542.3	'	'
Accrued investment income	935.6	897.1	'	'
Reinsurance recoverable	6,785.80	6,702.20	'	'
Deferred Policy Acquisition Costs	4,860.80	5,351.60	'	'
Sales inducements to contract holders	258.6	279	'	'
Deferred income taxes	'	-42.3	'	'
Goodwill and other intangible assets	312.5	323.7	'	'
Loans to subsidiaries and affiliates	180.6	0.3	'	'
Due from subsidiaries and affiliates	15.1	1.7	'	'
Other assets	959.4	995.1	'	'
Assets related to consolidated investment entities:	'	'	'	'
Limited partnerships/corporations, at fair value	3,382.40	3,218.60	'	'
Cash and cash equivalents	570	710.7	'	'
Corporate loans, at fair value using the fair value option	5,490.70	4,965.30	'	'
Other assets	108.4	104.8	'	'
Assets held in separate accounts	107,840	106,827.10	'	'
Total assets	223,215.40	220,157.80	'	'
Liabilities and Shareholder's Equity:	'	'	'	'
Future policy benefits	14,532.60	14,098.40	'	'
Contract owner account balances	69,723.50	69,908.30	'	'
Payables under securities loan agreements, including collateral held	864.5	769.4	'	'
Short-term debt with affiliates	109.5	85.9	'	'
Long-term debt	18.8	18.7	'	'
Funds held under reinsurance agreements	1,174.50	1,181.50	'	'
Derivatives	1,080.40	1,420.20	'	'
Pension and other post-employment provisions	467.5	474.9	'	'
Current income taxes	-12.2	80.5	'	'
Deferred income taxes	481.9	'	'	'
Due to subsidiaries and affiliates	1.5	12.5	'	'
Other liabilities	1,212.60	1,226	'	'
Liabilities related to consolidated investment entities:	'	'	'	'
Collateralized loan obligations notes, at fair value using the fair value option	5,525.50	5,161.60	'	'
Other liabilities	967.5	903.3	'	'
Liabilities related to separate accounts	107,840	106,827.10	'	'
Total liabilities	203,988.10	202,168.30	'	'
Shareholder's equity:	'	'	'	'
Total Voya Financial, Inc. shareholders' equity	16,860.80	15,747.70	'	'
Noncontrolling interest	2,366.50	2,241.80	'	'
Total shareholders' equity	19,227.30	17,989.50	'	'
Total liabilities and shareholder's equity	223,215.40	220,157.80	'	'
Consolidating Adjustments	'	'	'	'
Investments:	'	'	'	'
Fixed maturities, available-for-sale, at fair value	-15.4	-15.4	'	'
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	-177.3	-182.4	'	'
Intercompany Transaction, Investment In Subsidiary	-29,287.30	-27,676.50	'	'
Other Investments	0	0	'	'
Securities pledged	0	0	'	'
Total investments	-29,480	-27,874.30	'	'
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	0	0	'	'
Sales inducements to contract holders	0	0	'	'
Deferred income taxes	'	0	'	'
Goodwill and other intangible assets	0	0	'	'
Loans to subsidiaries and affiliates	-550.7	-211.6	'	'
Due from subsidiaries and affiliates	-31.6	-29.2	'	'
Other assets	-0.7	-2	'	'
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	-30,083.10	-28,137.20	'	'
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	-550	-211.3	'	'
Long-term debt	-15.4	-15.4	'	'
Funds held under reinsurance agreements	0	0	'	'
Derivatives	-177.3	-182.4	'	'
Pension and other post-employment provisions	0	0	'	'
Current income taxes	0	0	'	'
Deferred income taxes	0	'	'	'
Due to subsidiaries and affiliates	-16.6	-14.2	'	'
Other liabilities	-36.5	-37.4	'	'
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	-795.8	-460.7	'	'
Shareholder's equity:	'	'	'	'
Total Voya Financial, Inc. shareholders' equity	-29,287.30	-27,676.50	'	'
Noncontrolling interest	0	0	'	'
Total shareholders' equity	-29,287.30	-27,676.50	'	'
Total liabilities and shareholder's equity	($30,083.10)	($28,137.20)	'	'

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information - Statements of Operations (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Revenues:	'	'
Net investment income	$1,145.60	$1,198.70
Fee income	931.8	891.9
Premiums	600.9	471.9
Net realized gains (losses):	'	'
Total other-than-temporary impairments	-3.3	-11.6
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	0	-0.6
Net other-than-temporary impairments recognized in earnings	-3.3	-11
Other net realized capital gains (losses)	-187.3	-863.8
Total net realized capital gains (losses)	-190.6	-874.8
Other revenue	105.5	95.6
Income (loss) related to consolidated investment entities:	'	'
Net investment income (loss)	81.5	44.2
Changes in fair value related to collateralized loan obligations	-3.8	-8.9
Total revenues	2,670.90	1,818.60
Benefits and expenses:	'	'
Policyholder benefits	865	540.5
Interest credited to contract owner account balance	493.1	520.9
Operating expenses	789.5	759.1
Net amortization of deferred policy acquisition costs and value of business acquired	126.1	130.5
Interest expense	47.6	44.4
Operating expenses related to consolidated investment entities:	'	'
Interest expense	46.2	36.8
Other expense	1.1	0.7
Total benefits and expenses	2,368.60	2,032.90
Income (loss) before income taxes	302.3	-214.3
Income tax expense (benefit)	30.7	11.2
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	271.6	-225.5
Equity in earnings (losses) of subsidiaries, net of tax	0	0
Net income (loss) including noncontrolling interest	271.6	-225.5
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	-212
Parent Issuer	'	'
Revenues:	'	'
Net investment income	2	25
Fee income	0	0
Premiums	0	0
Net realized 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)	0.6	0
Total net realized capital gains (losses)	0.6	0
Other revenue	0.9	2.1
Income (loss) related to consolidated investment entities:	'	'
Net investment income (loss)	0	0
Changes in fair value related to collateralized loan obligations	0	0
Total revenues	3.5	27.1
Benefits and expenses:	'	'
Policyholder benefits	0	0
Interest credited to contract owner account balance	0	0
Operating expenses	1.5	2.7
Net amortization of deferred policy acquisition costs and value of business acquired	0	0
Interest expense	37.2	27.4
Operating expenses related to consolidated investment entities:	'	'
Interest expense	0	0
Other expense	0	0
Total benefits and expenses	38.7	30.1
Income (loss) before income taxes	-35.2	-3
Income tax expense (benefit)	0	-2
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	-35.2	-1
Equity in earnings (losses) of subsidiaries, net of tax	293.3	-211
Net income (loss) including noncontrolling interest	258.1	-212
Less: Net income (loss) attributable to noncontrolling interest	0	0
Net income (loss) available to Voya Financial, Inc.'s common shareholders	258.1	-212
Subsidiary Guarantor	'	'
Revenues:	'	'
Net investment income	0	0.1
Fee income	0	0
Premiums	0	0
Net realized 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	0.3
Income (loss) related to consolidated investment entities:	'	'
Net investment income (loss)	0	0
Changes in fair value related to collateralized loan obligations	0	0
Total revenues	0	0.4
Benefits and expenses:	'	'
Policyholder benefits	0	0
Interest credited to contract owner account balance	0	0
Operating expenses	0	0
Net amortization of deferred policy acquisition costs and value of business acquired	0	0
Interest expense	10.5	15.5
Operating expenses related to consolidated investment entities:	'	'
Interest expense	0	0
Other expense	0	0
Total benefits and expenses	10.5	15.5
Income (loss) before income taxes	-10.5	-15.1
Income tax expense (benefit)	3.3	-5.7
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	-13.8	-9.4
Equity in earnings (losses) of subsidiaries, net of tax	14.3	-219.4
Net income (loss) including noncontrolling interest	0.5	-228.8
Less: Net income (loss) attributable to noncontrolling interest	0	0
Net income (loss) available to Voya Financial, Inc.'s common shareholders	0.5	-228.8
Non-Guarantor Subsidiaries	'	'
Revenues:	'	'
Net investment income	1,144.90	1,174.30
Fee income	931.8	891.9
Premiums	600.9	471.9
Net realized gains (losses):	'	'
Total other-than-temporary impairments	-3.3	-11.6
Less: Portion of other-than-temporary impairments recognized in Other comprehensive income (loss)	0	-0.6
Net other-than-temporary impairments recognized in earnings	-3.3	-11
Other net realized capital gains (losses)	-187.9	-863.8
Total net realized capital gains (losses)	-191.2	-874.8
Other revenue	105.5	96.1
Income (loss) related to consolidated investment entities:	'	'
Net investment income (loss)	81.5	44.2
Changes in fair value related to collateralized loan obligations	-3.8	-8.9
Total revenues	2,669.60	1,794.70
Benefits and expenses:	'	'
Policyholder benefits	865	540.5
Interest credited to contract owner account balance	493.1	520.9
Operating expenses	788.9	759.3
Net amortization of deferred policy acquisition costs and value of business acquired	126.1	130.5
Interest expense	1.2	2.2
Operating expenses related to consolidated investment entities:	'	'
Interest expense	46.2	36.8
Other expense	1.1	0.7
Total benefits and expenses	2,321.60	1,990.90
Income (loss) before income taxes	348	-196.2
Income tax expense (benefit)	22.1	18.9
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	325.9	-215.1
Equity in earnings (losses) of subsidiaries, net of tax	0	0
Net income (loss) including noncontrolling interest	325.9	-215.1
Less: Net income (loss) attributable to noncontrolling interest	13.5	-13.5
Net income (loss) available to Voya Financial, Inc.'s common shareholders	312.4	-201.6
Consolidating Adjustments	'	'
Revenues:	'	'
Net investment income	-1.3	-0.7
Fee income	0	0
Premiums	0	0
Net realized 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	-2.9
Income (loss) related to consolidated investment entities:	'	'
Net investment income (loss)	0	0
Changes in fair value related to collateralized loan obligations	0	0
Total revenues	-2.2	-3.6
Benefits and expenses:	'	'
Policyholder benefits	0	0
Interest credited to contract owner account balance	0	0
Operating expenses	-0.9	-2.9
Net amortization of deferred policy acquisition costs and value of business acquired	0	0
Interest expense	-1.3	-0.7
Operating expenses related to consolidated investment entities:	'	'
Interest expense	0	0
Other expense	0	0
Total benefits and expenses	-2.2	-3.6
Income (loss) before income taxes	0	0
Income tax expense (benefit)	5.3	0
Net income (loss) before equity in earnings (losses) of unconsolidated affiliates	-5.3	0
Equity in earnings (losses) of subsidiaries, net of tax	-307.6	430.4
Net income (loss) including noncontrolling interest	-312.9	430.4
Less: Net income (loss) attributable to noncontrolling interest	0	0
Net income (loss) available to Voya Financial, Inc.'s common shareholders	($312.90)	$430.40

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information - Statements of Comprehensive Income (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Condensed Financial Statements, Captions [Line Items]	'	'
Net income (loss)	$271.60	($225.50)
Other comprehensive income (loss), before tax:	'	'
Unrealized gains (losses) on securities	1,110.10	-399.9
Other-than-temporary impairments	15.6	10.9
Pension and other post-employment benefit liability	-3.4	-3.5
Other comprehensive income (loss), before tax	1,122.30	-392.5
Income tax expense (benefit) related to items of other comprehensive income (loss)	393.9	-134.6
Other comprehensive income (loss), after tax	728.4	-257.9
Comprehensive income (loss)	1,000	-483.4
Less: Comprehensive income (loss) attributable to the noncontrolling interest	13.5	-13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	986.5	-469.9
Parent Issuer	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net income (loss)	258.1	-212
Other comprehensive income (loss), before tax:	'	'
Unrealized gains (losses) on securities	1,110.10	-399.9
Other-than-temporary impairments	15.6	10.9
Pension and other post-employment benefit liability	-3.4	-3.5
Other comprehensive income (loss), before tax	1,122.30	-392.5
Income tax expense (benefit) related to items of other comprehensive income (loss)	393.9	-134.6
Other comprehensive income (loss), after tax	728.4	-257.9
Comprehensive income (loss)	986.5	-469.9
Less: Comprehensive income (loss) attributable to the noncontrolling interest	0	0
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	986.5	-469.9
Subsidiary Guarantor	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net income (loss)	0.5	-228.8
Other comprehensive income (loss), before tax:	'	'
Unrealized gains (losses) on securities	767.7	-137
Other-than-temporary impairments	13.2	6.9
Pension and other post-employment benefit liability	-0.8	-0.8
Other comprehensive income (loss), before tax	780.1	-130.9
Income tax expense (benefit) related to items of other comprehensive income (loss)	274.1	-44.9
Other comprehensive income (loss), after tax	506	-86
Comprehensive income (loss)	506.5	-314.8
Less: Comprehensive income (loss) attributable to the noncontrolling interest	0	0
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	506.5	-314.8
Non-Guarantor Subsidiaries	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net income (loss)	325.9	-215.1
Other comprehensive income (loss), before tax:	'	'
Unrealized gains (losses) on securities	1,113.20	-397.8
Other-than-temporary impairments	15.6	10.9
Pension and other post-employment benefit liability	-3.4	-3.4
Other comprehensive income (loss), before tax	1,125.40	-390.3
Income tax expense (benefit) related to items of other comprehensive income (loss)	393.5	-133.8
Other comprehensive income (loss), after tax	731.9	-256.5
Comprehensive income (loss)	1,057.80	-471.6
Less: Comprehensive income (loss) attributable to the noncontrolling interest	13.5	-13.5
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	1,044.30	-458.1
Consolidating Adjustments	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net income (loss)	-312.9	430.4
Other comprehensive income (loss), before tax:	'	'
Unrealized gains (losses) on securities	-1,880.90	534.8
Other-than-temporary impairments	-28.8	-17.8
Pension and other post-employment benefit liability	4.2	4.2
Other comprehensive income (loss), before tax	-1,905.50	521.2
Income tax expense (benefit) related to items of other comprehensive income (loss)	-667.6	178.7
Other comprehensive income (loss), after tax	-1,237.90	342.5
Comprehensive income (loss)	-1,550.80	772.9
Less: Comprehensive income (loss) attributable to the noncontrolling interest	0	0
Comprehensive income (loss) attributable to Voya Financial, Inc.'s common shareholders	($1,550.80)	$772.90

Condensed_Consolidating_Financ5

Condensed Consolidating Financial Information - Statements of Cash Flows (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	$786.60	($28.40)
Proceeds from the sale, maturity, disposal or redemption of:	'	'
Fixed maturities	2,629.70	4,455.80
Equity securities, available-for-sale	47.7	28.4
Mortgage loans on real estate	307.4	318.3
Limited partnerships/corporations	60.9	18
Acquisition of:	'	'
Fixed maturities	-3,057.20	-4,802.80
Equity securities, available-for-sale	-7.4	-9.4
Mortgage loans on real estate	-252.9	-581.4
Limited partnerships/corporations	-18.4	-9.8
Short-term investments, net	1.9	2,999.10
Policy loans, net	27.3	-4.1
Derivatives, net	-178.6	-1,089.60
Other investments, net	2	11.8
Sales from consolidated investment entities	571.8	573.8
Purchases within consolidated investment entities	-1,258.80	-613.8
Maturity of intercompany loans issued to subsidiaries with maturities more than three months	0	'
Net (issuance) maturity of short-term intercompany loans	0	0
Return of capital contributions from subsidiaries	0	'
Capital contributions to subsidiaries	0	'
Collateral received (delivered), net	89.4	-360.5
Purchases of fixed assets, net	-8.7	-6.6
Other, net	0	'
Net cash (used in) provided by investing activities	-1,043.90	927.2
Cash Flows from Financing Activities:	'	'
Deposits received for investment contracts	2,500	2,936.20
Maturities and withdrawals from investment contracts	-2,809.70	-2,996.60
Proceeds from issuance of debt with maturities of more than three months	0	-1,000.60
Repayment of debt with maturities of more than three months	0	-1,304.60
Short-term debt, net	0	169.7
Debt issuance costs	-16.7	-6.5
Intercompany loans with maturities of more than three months	0	'
Net (repayments of) proceeds from short-term intercompany loans	0	0
Dividends to parent	0	0
Return of capital contributions to parent	0	'
Contributions of capital from parent	0	'
Borrowings of consolidated investment entities	-28.4	0
Contributions from (distributions to) participants in consolidated investment entities	466.9	642.7
Common stock acquired - Share buyback	-250	0
Dividends paid	-2.6	0
Net cash (used in) provided by financing activities	-83.7	102.1
Net (decrease) increase in cash and cash equivalents	-341	1,000.90
Cash and cash equivalents, beginning of year	2,840.80	1,786.80
Cash and cash equivalents, end of year	2,499.80	2,787.70
Parent Issuer	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	-12.1	152.3
Proceeds from the sale, maturity, disposal or redemption of:	'	'
Fixed maturities	0	0
Equity securities, available-for-sale	2.4	3.2
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Acquisition of:	'	'
Fixed maturities	0	0
Equity securities, available-for-sale	-6.5	-5.2
Mortgage loans on real estate	0	0
Limited partnerships/corporations	0	0
Short-term investments, net	-21	0
Policy loans, net	0	0
Derivatives, net	11.5	0
Other investments, net	0	0
Sales from consolidated investment entities	0	0
Purchases within consolidated investment entities	0	0
Maturity of intercompany loans issued to subsidiaries with maturities more than three months	0.6	'
Net (issuance) maturity of short-term intercompany loans	-159.3	-34.9
Return of capital contributions from subsidiaries	75	'
Capital contributions to subsidiaries	0	'
Collateral received (delivered), net	0	8.6
Purchases of fixed assets, net	0	0
Other, net	0	'
Net cash (used in) provided by investing activities	-97.3	-28.3
Cash Flows from Financing Activities:	'	'
Deposits received for investment contracts	0	0
Maturities and withdrawals from investment contracts	0	0
Proceeds from issuance of debt with maturities of more than three months	'	-1,000.30
Repayment of debt with maturities of more than three months	'	-945.3
Short-term debt, net	'	169.7
Debt issuance costs	-16.7	-6.5
Intercompany loans with maturities of more than three months	0	'
Net (repayments of) proceeds from short-term intercompany loans	180	23.9
Dividends to parent	0	0
Return of capital contributions to parent	0	'
Contributions of capital from parent	0	'
Borrowings of consolidated investment entities	0	'
Contributions from (distributions to) participants in consolidated investment entities	0	0
Common stock acquired - Share buyback	-250	'
Dividends paid	-2.6	'
Net cash (used in) provided by financing activities	-89.3	-97.3
Net (decrease) increase in cash and cash equivalents	-198.7	26.7
Cash and cash equivalents, beginning of year	640.2	357.5
Cash and cash equivalents, end of year	441.5	384.2
Subsidiary Guarantor	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	8	-2
Proceeds from the sale, maturity, disposal or redemption of:	'	'
Fixed maturities	0	0
Equity securities, available-for-sale	13.1	12.4
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 issued to subsidiaries with maturities more than three months	0	'
Net (issuance) maturity of short-term intercompany loans	0	-10.5
Return of capital contributions from subsidiaries	0	'
Capital contributions to subsidiaries	-156	'
Collateral received (delivered), net	0	0
Purchases of fixed assets, net	0	0
Other, net	0.2	'
Net cash (used in) provided by investing activities	-142.7	1.9
Cash Flows from Financing Activities:	'	'
Deposits received for investment contracts	0	0
Maturities and withdrawals from investment contracts	0	0
Proceeds from issuance of debt with maturities of more than three months	'	0
Repayment of debt with maturities of more than three months	'	0
Short-term debt, net	'	0
Debt issuance costs	0	0
Intercompany loans with maturities of more than three months	0	'
Net (repayments of) proceeds from short-term intercompany loans	135.1	0
Dividends to parent	0	0
Return of capital contributions to parent	0	'
Contributions of capital from parent	0	'
Borrowings of consolidated investment entities	0	'
Contributions from (distributions to) participants in consolidated investment entities	0	0
Common stock acquired - Share buyback	0	'
Dividends paid	0	'
Net cash (used in) provided by financing activities	135.1	0
Net (decrease) increase in cash and cash equivalents	0.4	-0.1
Cash and cash equivalents, beginning of year	1.1	0.4
Cash and cash equivalents, end of year	1.5	0.3
Non-Guarantor Subsidiaries	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	816.7	-163.7
Proceeds from the sale, maturity, disposal or redemption of:	'	'
Fixed maturities	2,629.70	4,455.80
Equity securities, available-for-sale	32.2	12.8
Mortgage loans on real estate	307.4	318.3
Limited partnerships/corporations	60.9	18
Acquisition of:	'	'
Fixed maturities	-3,057.20	-4,802.80
Equity securities, available-for-sale	-0.9	-4.2
Mortgage loans on real estate	-252.9	-581.4
Limited partnerships/corporations	-18.4	-9.8
Short-term investments, net	22.9	2,999.10
Policy loans, net	27.3	-4.1
Derivatives, net	-190.1	-1,089.60
Other investments, net	2	11.8
Sales from consolidated investment entities	571.8	573.8
Purchases within consolidated investment entities	-1,258.80	-613.8
Maturity of intercompany loans issued to subsidiaries with maturities more than three months	0	'
Net (issuance) maturity of short-term intercompany loans	-180	-13.4
Return of capital contributions from subsidiaries	0	'
Capital contributions to subsidiaries	0	'
Collateral received (delivered), net	89.4	-369.1
Purchases of fixed assets, net	-8.7	-6.6
Other, net	-0.2	'
Net cash (used in) provided by investing activities	-1,223.60	894.8
Cash Flows from Financing Activities:	'	'
Deposits received for investment contracts	2,500	2,936.20
Maturities and withdrawals from investment contracts	-2,809.70	-2,996.60
Proceeds from issuance of debt with maturities of more than three months	'	-0.3
Repayment of debt with maturities of more than three months	'	-359.3
Short-term debt, net	'	0
Debt issuance costs	0	0
Intercompany loans with maturities of more than three months	-0.6	'
Net (repayments of) proceeds from short-term intercompany loans	24.2	34.9
Dividends to parent	-26	-15
Return of capital contributions to parent	-75	'
Contributions of capital from parent	156	'
Borrowings of consolidated investment entities	-28.4	'
Contributions from (distributions to) participants in consolidated investment entities	466.9	642.7
Common stock acquired - Share buyback	0	'
Dividends paid	0	'
Net cash (used in) provided by financing activities	264.2	243.2
Net (decrease) increase in cash and cash equivalents	-142.7	974.3
Cash and cash equivalents, beginning of year	2,199.50	1,428.90
Cash and cash equivalents, end of year	2,056.80	2,403.20
Consolidating Adjustments	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	-26	-15
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 issued to subsidiaries with maturities more than three months	-0.6	'
Net (issuance) maturity of short-term intercompany loans	339.3	58.8
Return of capital contributions from subsidiaries	-75	'
Capital contributions to subsidiaries	156	'
Collateral received (delivered), net	0	0
Purchases of fixed assets, net	0	0
Other, net	0	'
Net cash (used in) provided by investing activities	419.7	58.8
Cash Flows from Financing Activities:	'	'
Deposits received for investment contracts	0	0
Maturities and withdrawals from investment contracts	0	0
Proceeds from issuance of debt with maturities of more than three months	'	0
Repayment of debt with maturities of more than three months	'	0
Short-term debt, net	'	0
Debt issuance costs	0	0
Intercompany loans with maturities of more than three months	0.6	'
Net (repayments of) proceeds from short-term intercompany loans	-339.3	-58.8
Dividends to parent	26	15
Return of capital contributions to parent	75	'
Contributions of capital from parent	-156	'
Borrowings of consolidated investment entities	0	'
Contributions from (distributions to) participants in consolidated investment entities	0	0
Common stock acquired - Share buyback	0	'
Dividends paid	0	'
Net cash (used in) provided by financing activities	-393.7	-43.8
Net (decrease) increase 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