Symetra Financial (SYA) 10-Q 9 May 14 2014 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2014	2-May-14
Document And Entity Information [Abstract]	'	'
Entity Registrant Name	'SYMETRA FINANCIAL CORPORATION	'
Entity Central Index Key	'0001403385	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	115,903,555

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Available-for-sale securities:	'	'
Fixed maturities, at fair value (amortized cost: $22,896.2 and $22,261.3, respectively)	$24,329	$23,337.70
Marketable equity securities, at fair value (cost: $119.4 and $129.0, respectively)	126.8	134.3
Trading securities:	'	'
Marketable equity securities, at fair value (cost: $376.7 and $403.0, respectively)	460.3	474.4
Mortgage loans, net	3,603.20	3,541
Policy loans	62.4	63.3
Investments in limited partnerships (includes $41.5 and $31.2 measured at fair value, respectively)	299.3	296.3
Other invested assets (includes $54.0 and $47.8 measured at fair value, respectively)	59	54.1
Total investments	28,940	27,901.10
Cash and cash equivalents	108.5	76
Accrued investment income	295	298
Reinsurance recoverables	313	310.8
Deferred policy acquisition costs	320.1	322.5
Receivables and other assets	213.9	242.7
Separate account assets	973.8	978.4
Total assets	31,164.30	30,129.50
LIABILITIES AND STOCKHOLDERS’ EQUITY	'	'
Funds held under deposit contracts	25,140.50	24,642.90
Future policy benefits	399.8	397.9
Policy and contract claims	150.1	159.9
Other policyholders’ funds	143.9	128.1
Notes payable	449.6	449.5
Deferred income tax liabilities, net	320.1	201.9
Other liabilities	391.2	229
Separate account liabilities	973.8	978.4
Total liabilities	27,969	27,187.60
Commitments and contingencies (Note 11)	'	'
Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued	0	0
Common stock, $0.01 par value; 750,000,000 shares authorized; 124,923,871 issued and 116,619,218 outstanding as of March 31, 2014; 124,683,023 issued and 117,730,757 outstanding as of December 31, 2013	1.2	1.2
Additional paid-in capital	1,466.30	1,464.60
Treasury stock, at cost; 8,304,653 and 6,952,266 shares as of March 31, 2014 and December 31, 2013, respectively	-119.9	-93.4
Retained earnings	1,043.40	975.9
Accumulated other comprehensive income, net of taxes	804.3	593.6
Total stockholders’ equity	3,195.30	2,941.90
Total liabilities and stockholders’ equity	$31,164.30	$30,129.50

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Available-for-sale securities:	'	'
Fixed maturities, at amortized cost	$22,896.20	$22,261.30
Marketable equity securities, at cost	119.4	129
Trading securities:	'	'
Trading marketable equity securities, at cost	376.7	403
Investments in limited partnerships at fair value	41.5	31.2
Other invested assets at fair value	$54	$47.80
LIABILITIES AND STOCKHOLDERS’ EQUITY	'	'
Preferred stock, par value (USD per share)	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value (USD per share)	$0.01	$0.01
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	124,923,871	124,683,023
Common stock, shares outstanding	116,619,218	117,730,757
Treasury stock, shares	8,304,653	6,952,266

Consolidated_Statements_Of_Inc

Consolidated Statements Of Income (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Revenues:	'	'
Premiums	$153.80	$157
Net investment income	324.4	323.7
Policy fees, contract charges, and other	46.6	49.9
Net realized gains (losses):	'	'
Total other-than-temporary impairment losses on securities	-1.1	-2.6
Less: portion recognized in other comprehensive income (loss)	0	0.6
Net impairment losses recognized in earnings	-1.1	-2
Other net realized gains (losses)	21.8	28.5
Net realized gains (losses)	20.7	26.5
Total revenues	545.5	557.1
Benefits and expenses:	'	'
Policyholder benefits and claims	101.2	119.5
Interest credited	234.2	235.3
Other underwriting and operating expenses	87.9	91.8
Interest expense	8.2	8.2
Amortization of deferred policy acquisition costs	19.9	18.9
Total benefits and expenses	451.4	473.7
Income from operations before income taxes	94.1	83.4
Provision (benefit) for income taxes:	'	'
Current	10.1	15.7
Deferred	4.7	1.7
Total provision for income taxes	14.8	17.4
Net income	$79.30	$66
Net income per common share:	'	'
Basic (USD per share)	$0.68	$0.48
Diluted (USD per share)	$0.68	$0.48
Weighted-average number of common shares outstanding:	'	'
Basic (shares)	117,460,386	138,093,261
Diluted (shares)	117,465,638	138,097,970
Cash dividends declared per common share (USD per share)	$0.10	$0.08

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Net income	$79.30	$66
Other comprehensive income (loss), net of taxes and reclassification adjustments:	'	'
Changes in unrealized gains (losses) on available-for-sale securities (net of taxes of $127.0 and $(52.3))	235.9	-97.2
Other-than-temporary impairments on fixed maturities not related to credit losses (net of taxes of $0.0 and $(0.2))	0	-0.4
Impact of net unrealized (gains) losses on deferred policy acquisition costs and deferred sales inducements (net of taxes of $(11.8) and $8.1)	-21.8	15
Impact of cash flow hedges (net of taxes of $(1.8) and $2.4)	-3.4	4.5
Other comprehensive income (loss)	210.7	-78.1
Total comprehensive income (loss)	$290	($12.10)

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Changes in unrealized gains (losses) on available-for-sale securities, tax	$127	($52.30)
Other-than-temporary impairments on fixed maturities not related to credit losses, tax	0	-0.2
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and deferred sales inducements, tax	-11.8	8.1
Impact of cash flow hedges, tax	($1.80)	$2.40

Consolidated_Statements_Of_Cha

Consolidated Statements Of Changes In Stockholders' Equity (USD $)	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
In Millions
Beginning Balance at Dec. 31, 2012	$3,630.10	$1.20	$1,459.30	$0	$798.40	$1,371.20
Net income	66	0	0	0	66	0
Other comprehensive income (loss)	-78.1	0	0	0	0	-78.1
Stock-based compensation	1.4	0	1.4	0	0	0
Shares repurchased	-4.2	0	0	-4.2	0	0
Dividends declared	-11	0	0	0	-11	0
Ending Balance at Mar. 31, 2013	3,604.20	1.2	1,460.70	-4.2	853.4	1,293.10
Beginning Balance at Dec. 31, 2013	2,941.90	1.2	1,464.60	-93.4	975.9	593.6
Net income	79.3	0	0	0	79.3	0
Other comprehensive income (loss)	210.7	0	0	0	0	210.7
Stock-based compensation	1.7	0	1.7	0	0	0
Shares repurchased	-26.5	0	0	-26.5	0	0
Dividends declared	-11.8	0	0	0	-11.8	0
Ending Balance at Mar. 31, 2014	$3,195.30	$1.20	$1,466.30	($119.90)	$1,043.40	$804.30

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities	'	'
Net income	$79.30	$66
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Net realized (gains) losses	-20.7	-26.5
Accretion and amortization of invested assets, net	22	17.8
Accrued interest on fixed maturities	-2.9	-3.9
Amortization and depreciation	6.2	7.3
Deferred income tax provision (benefit)	4.7	1.7
Interest credited on deposit contracts	234.2	235.3
Mortality and expense charges and administrative fees	-32.8	-29.9
Changes in:	'	'
Accrued investment income	3	-5.7
Deferred policy acquisition costs, net	-21.4	0.8
Future policy benefits	1.9	0.3
Policy and contract claims	-9.8	-14
Current income taxes	10	45.7
Other assets and liabilities	-13	-19.1
Other, net	1	0.9
Total adjustments	182.4	210.7
Net cash provided by (used in) operating activities	261.7	276.7
Purchases of:	'	'
Fixed maturities and marketable equity securities	-1,358.60	-843.9
Other invested assets and investments in limited partnerships	-34.7	-9.5
Issuances of mortgage loans	-117.6	-137.6
Maturities, calls, paydowns, and other repayments	418.6	483.8
Sales of:	'	'
Fixed maturities and marketable equity securities	521.6	414.3
Other invested assets and investments in limited partnerships	15.1	2.2
Repayments of mortgage loans	55.5	61.5
Other, net	-0.7	12.2
Net cash provided by (used in) investing activities	-500.8	-17
Policyholder account balances:	'	'
Deposits	758.7	390.2
Withdrawals	-445.5	-423.1
Cash dividends paid on common stock	-11.8	-11
Common stock repurchased	-22.7	-3.7
Other, net	-7.1	-41.7
Net cash provided by (used in) financing activities	271.6	-89.3
Net increase (decrease) in cash and cash equivalents	32.5	170.4
Cash and cash equivalents at beginning of period	76	130.8
Cash and cash equivalents at end of period	108.5	301.2
Non-cash transactions during the period:	'	'
Fixed maturities exchanges	16.7	37.9
Investments in limited partnerships and capital obligations incurred	$2.60	$1.30

Description_Of_Business

Description Of Business	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Description Of Business	'
	1. Description of Business
	Symetra Financial Corporation is a Delaware corporation that, through its subsidiaries, offers products and services that serve the retirement, employee benefits and life insurance markets. These products and services are marketed through financial institutions, benefits consultants, and independent agents and advisors in all states and the District of Columbia. The Company’s principal products include fixed, fixed indexed, and variable deferred annuities, single premium immediate annuities, medical stop-loss insurance, limited benefit medical insurance, group life and disability income insurance, individual life insurance and institutional life insurance including bank-owned life insurance (BOLI) and variable corporate-owned life insurance (COLI). The Company also services its block of structured settlement annuities.
	The accompanying interim condensed financial statements include, on a consolidated basis, the accounts of Symetra Financial Corporation and its subsidiaries, which are wholly-owned and collectively referred to as “Symetra” or “the Company.” The interim condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (GAAP), including the rules and regulations of the Securities and Exchange Commission (SEC).

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Summary Of Significant Accounting Policies	'
	2. Summary of Significant Accounting Policies
	The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that may affect the amounts reported in the interim condensed consolidated financial statements and accompanying notes. These interim condensed consolidated financial statements are unaudited and in management’s opinion include all adjustments, consisting of normal recurring adjustments and accruals, necessary for a fair presentation. All significant intercompany transactions and balances have been eliminated. Certain reclassifications have been made to prior year financial information for it to conform to the current period presentation.
	The provision for income taxes on the consolidated statements of income reflects the Company's estimated effective tax rate for the year. The difference between this rate and the U.S. federal income tax rate of 35% to income was primarily due to benefits from the Company's tax credit investments.
	These interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013. Financial results for the three months ended March 31, 2014 are not necessarily indicative of the results that may be expected for the twelve months ended December 31, 2014.
	Accounting Pronouncements Not Yet Adopted
	ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects
	In January 2014, the FASB issued ASU 2014-01, Investments (Topic 323) – Equity Method and Joint Ventures: Accounting for Investments in Qualified Affordable Housing (AFH) Projects. This ASU provides companies with the option to elect the proportional method of amortization for AFH investments if certain criteria are met. Under this method, a company would amortize the cost of its investment in proportion to the tax credits and other tax benefits received. Amortization would be presented as a component of income tax expense. The standard is effective for annual and interim periods beginning on or after January 1, 2015, with retrospective application required. The standard does not apply to other types of tax credit investments. The Company is currently evaluating whether it will elect the proportional amortization method for its AFH investments and the impact that it may have on the consolidated financial statements.

Earnings_Per_Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	3. Earnings Per Share
	Basic earnings per share represents the amount of earnings for the period available to each share of common stock outstanding during the reporting period. Diluted earnings per share represents the amount of earnings for the period available to each share of common stock outstanding during the reporting period, adjusted for the potential issuance of common stock, if dilutive.
	Participating securities are those for which the instrument holders are entitled to receive any dividends declared on the common stock concurrently with the holders of outstanding shares of common stock, on a one-to-one basis. These securities include restricted stock issued to the Company’s employees, as well as the Company’s warrants, which were previously exercisable for 18,975,744 common shares and were net-share settled on June 20, 2013. Participating securities are included in basic and diluted earnings per share, based on the application of the two-class method, for the portion of the period for which the securities were outstanding.
	For both the three months ended March 31, 2014 and 2013, stock options exercisable for 2,650,000 shares of common stock were excluded from the computation of diluted earnings per share, based on the application of the treasury stock method, because they were anti-dilutive.
	The following table presents information relating to the Company’s calculations of basic and diluted earnings per share:
		For the Three Months Ended
		March 31,
		2014		2013
	Numerator:
	Net income	$	79.3	$	66
	Denominator:
	Weighted-average common shares outstanding – basic	117,460,386		138,093,261
	Add: dilutive effect of certain equity instruments	5,252		4,709
	Weighted-average common shares outstanding – diluted	117,465,638		138,097,970
	Net income per common share:
	Basic	$	0.68	$	0.48
	Diluted	$	0.68	$	0.48

Investments

Investments	3 Months Ended
	Mar. 31, 2014
Investments [Abstract]	'
Investments	'
	4. Investments
	The following tables summarize the Company’s available-for-sale fixed maturities and marketable equity securities. The other-than-temporary impairments (OTTI) in accumulated other comprehensive income (AOCI) represent the amount of cumulative non-credit OTTI losses recorded in AOCI for securities that also had a credit-related impairment.
		Cost or			Gross			Gross			Fair Value			OTTI in
		Amortized			Unrealized			Unrealized						AOCI
		Cost			Gains			Losses
	As of March 31, 2014
	Fixed maturities:
	U.S. government and agencies	$	810.9		$	6.1		$	(4.1	)	$	812.9		$	—
	State and political subdivisions	730.9			24.5			(4.2		)	751.2			—
	Corporate securities	16,676.00			1,297.70			(120.0		)	17,853.70			(14.0		)
	Residential mortgage-backed securities	2,682.70			130.9			(24.5		)	2,789.10			(6.5		)
	Commercial mortgage-backed securities	1,428.50			93.9			(7.9		)	1,514.50			—
	Other debt obligations	567.2			42.2			(1.8		)	607.6			—
	Total fixed maturities	22,896.20			1,595.30			(162.5		)	24,329.00			(20.5		)
	Marketable equity securities, available-for-sale	119.4			7.7			(0.3		)	126.8			—
	Total	$	23,015.60		$	1,603.00		$	(162.8	)	$	24,455.80		$	(20.5	)
		Cost or			Gross			Gross			Fair Value			OTTI in
		Amortized			Unrealized			Unrealized						AOCI
		Cost			Gains			Losses
	As of December 31, 2013
	Fixed maturities:
	U.S. government and agencies	$	348.5		$	2.1		$	(6.2	)	$	344.4		$	—
	State and political subdivisions	748.2			17.6			(14.3		)	751.5			—
	Corporate securities	16,470.90			1,083.80			(202.3		)	17,352.40			(14.9		)
	Residential mortgage-backed securities	2,678.30			115.1			(37.4		)	2,756.00			(6.8		)
	Commercial mortgage-backed securities	1,436.00			94.7			(12.3		)	1,518.40			—
	Other debt obligations	579.4			39.3			(3.7		)	615			—
	Total fixed maturities	22,261.30			1,352.60			(276.2		)	23,337.70			(21.7		)
	Marketable equity securities, available-for-sale	129			5.9			(0.6		)	134.3			—
	Total	$	22,390.30		$	1,358.50		$	(276.8	)	$	23,472.00		$	(21.7	)
	The following tables summarize gross unrealized losses and fair values of the Company’s available-for-sale investments. The tables are aggregated by investment category and present separately those securities that have been in a continuous unrealized loss position for less than twelve months and for twelve months or more.
		Less Than 12 Months									12 Months or More
		Fair			Gross			# of			Fair			Gross			# of
		Value			Unrealized			Securities			Value			Unrealized			Securities
					Losses									Losses
	As of March 31, 2014
	Fixed maturities:
	U.S. government and agencies	$	104.5		$	(4.1	)	9			$	—		$	—		—
	State and political subdivisions	197.3			(4.1		)	34			1.7			(0.1		)	1
	Corporate securities	2,384.50			(71.8		)	199			370.1			(48.2		)	47
	Residential mortgage-backed securities	521.1			(21.2		)	78			47.4			(3.3		)	18
	Commercial mortgage-backed securities	169.2			(6.2		)	10			24.5			(1.7		)	9
	Other debt obligations	137.2			(1.7		)	14			0.6			(0.1		)	2
	Total fixed maturities	3,513.80			(109.1		)	344			444.3			(53.4		)	77
	Marketable equity securities, available-for-sale	17.8			(0.3		)	18			—			—			—
	Total	$	3,531.60		$	(109.4	)	$	362		$	444.3		$	(53.4	)	$	77
		Less Than 12 Months									12 Months or More
		Fair			Gross			# of			Fair			Gross			# of
		Value			Unrealized			Securities			Value			Unrealized			Securities
					Losses									Losses
	As of December 31, 2013
	Fixed maturities:
	U.S. government and agencies	$	102.7		$	(6.2	)	9			$	—		$	—		—
	State and political subdivisions	278.7			(13.9		)	44			5.4			(0.4		)	3
	Corporate securities	3,621.50			(150.7		)	258			263.5			(51.6		)	42
	Residential mortgage-backed securities	680			(33.0		)	95			52.4			(4.4		)	22
	Commercial mortgage-backed securities	261.9			(11.4		)	17			14.2			(0.9		)	9
	Other debt obligations	152			(3.6		)	15			0.6			(0.1		)	3
	Total fixed maturities	5,096.80			(218.8		)	438			336.1			(57.4		)	79
	Marketable equity securities, available-for-sale	39.7			(0.6		)	21			—			—			—
	Total	$	5,136.50		$	(219.4	)	$	459		$	336.1		$	(57.4	)	$	79
	Based on National Association of Insurance Commissioners (NAIC) ratings as of March 31, 2014 and December 31, 2013, the Company held below-investment-grade fixed maturities with fair values of $1,217.6 and $1,267.5, respectively, and amortized costs of $1,171.3 and $1,229.7, respectively. These holdings amounted to 5.0% and 5.5% of the Company’s investments in fixed maturities at fair value as of March 31, 2014 and December 31, 2013, respectively.
	The following table summarizes the amortized cost and fair value of fixed maturities as of March 31, 2014, by contractual years to maturity. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalties.
	Amortized			Fair
	Cost			Value
One year or less	$	733.8		$	738.2
Over one year through five years	5,084.40			5,515.20
Over five years through ten years	8,730.60			9,044.80
Over ten years	3,789.50			4,245.80
Residential mortgage-backed securities	2,682.70			2,789.10
Commercial mortgage-backed securities	1,428.50			1,514.50
Other asset-backed securities	446.7			481.4
Total fixed maturities	$	22,896.20		$	24,329.00
The following table summarizes the Company’s net investment income:
	For the Three Months Ended
	March 31,
	2014			2013
Fixed maturities	$	283		$	284.6
Marketable equity securities, available-for-sale	1			0.6
Marketable equity securities, trading	3			3.1
Mortgage loans	50.1			44.9
Policy loans	0.9			0.9
Investments in limited partnerships	(6.7		)	(4.4		)
Other	1.4			2
Total investment income	332.7			331.7
Investment expenses	(8.3		)	(8.0		)
Net investment income	$	324.4		$	323.7
The following table summarizes the Company’s net realized gains (losses):
	For the Three Months Ended
	March 31,
	2014			2013
Fixed maturities:
Gross gains on sales	$	8.7		$	1.8
Gross losses on sales	(1.8		)	(8.1		)
Net impairment losses recognized in earnings	(1.1		)	(2.0		)
Other (1)	(1.2		)	(0.7		)
Total fixed maturities	4.6			(9.0		)
Marketable equity securities, trading (2)	19.7			33
Other (3)	(5.0		)	2.1
Deferred policy acquisition costs and deferred sales inducement adjustment	1.4			0.4
Net realized gains (losses)	$	20.7		$	26.5
____________________
-1	This includes net gains (losses) on calls and redemptions, and changes in the fair value of the Company’s convertible securities held as of period end totaling $2.4 and $0.9 for the three months ended March 31, 2014 and 2013, respectively.
-2	This includes net gains (losses) on changes in the fair value of trading securities held as of period end totaling $13.8 and $27.2 for the three months ended March 31, 2014 and 2013, respectively.
-3	This includes net gains (losses) on derivatives not designated for hedge accounting and other instruments.
Other-Than-Temporary Impairments
The Company’s review of investment securities for OTTI includes both quantitative and qualitative criteria. Quantitative criteria include the length of time and amount that each security is in an unrealized loss position (i.e., is underwater) and, for fixed maturities, whether expected future cash flows indicate that a credit loss exists.
While all securities are monitored for impairment, the Company’s experience indicates that, under normal market conditions, securities for which the cost or amortized cost exceeds fair value by less than 20% do not typically represent a significant risk of impairment and, often, fair values recover over time as the factors that caused the declines improve. If the estimated fair value has declined and remained below cost or amortized cost by 20% or more for at least six months, the Company further analyzes the decrease in fair value to determine whether it is an other-than-temporary decline. To make this determination for each security, the Company considers, among other factors:
•	Extent and duration of the decline in fair value below cost or amortized cost;
•	The financial condition and near-term prospects of the issuer of the security, including any specific events that may affect its operations, earnings potential or compliance with terms and covenants of the security;
•	Changes in the financial condition of the security’s underlying collateral;
•	Any downgrades of the security by a rating agency;
•	Nonpayment of scheduled interest, or the reduction or elimination of dividends;
•	Other indications that a credit loss has occurred; and
•	For fixed maturities, the Company’s intent to sell or whether it is more likely than not the Company will be required to sell the fixed maturity prior to recovery of its amortized cost, considering any regulatory developments, prepayment or call notifications and the Company’s liquidity needs.
For fixed maturities, the Company concludes that an OTTI has occurred if a security is underwater and there is an intent to sell the security or if the present value of expected cash flows is less than the amortized cost of the security (i.e., a credit loss exists). In order to determine the amount of the credit loss, the Company calculates the recovery value by discounting its estimate of future cash flows from the security. The discount rate is the original effective yield for corporate securities or current effective yield for mortgage-backed and other structured securities.
Determination of Credit-Related OTTI on Corporate Securities
To determine the recovery value for a corporate security, the Company performs an analysis including, but not limited to, the following:
•	Expected cash flows of the issuer;
•	Fundamentals of the industry in which the issuer operates;
•	Fundamentals of the issuer to determine what the Company would recover if the issuer were to file for bankruptcy;
•	Expectations regarding defaults and recovery rates;
•	Changes to the rating of the security by a rating agency;
•	Third-party guarantees; and
•	Additional available market information.
Determination of Credit-Related OTTI on Structured Securities
To determine the recovery value for a structured security, including residential mortgage-, commercial mortgage- and other asset-backed securities, the Company performs an analysis including, but not limited to, the following:
•	Expected cash flows from the security;
•	Creditworthiness;
•	Delinquency ratios and loan-to-value ratios on the underlying collateral;
•	Average cumulative collateral values, vintage year and level of subordination;
•	Geographic concentrations; and
•	Susceptibility to prepayment and anti-selection due to changes in the interest rate environment.
The following table presents the severity and duration of the gross unrealized losses on the Company’s underwater available-for-sale fixed maturities, after the recognition of any credit-related OTTI:
	As of March 31, 2014						As of December 31, 2013
	Fair			Gross			Fair			Gross
	Value			Unrealized			Value			Unrealized
				Losses						Losses
Fixed maturities
Underwater by 20% or more:
Less than 6 consecutive months	$	2.2		$	(0.9	)	$	33.3		$	(12.3	)
6 consecutive months or more	32.4			(17.4		)	26.7			(18.4		)
Total underwater by 20% or more	34.6			(18.3		)	60			(30.7		)
All other underwater fixed maturities	3,923.50			(144.2		)	5,372.90			(245.5		)
Total underwater fixed maturities	$	3,958.10		$	(162.5	)	$	5,432.90		$	(276.2	)
There were no marketable equity securities recorded as available-for-sale that were underwater by 20% or more as of March 31, 2014 or December 31, 2013.
The Company reviewed its available-for-sale fixed maturities with unrealized losses as of March 31, 2014 in accordance with its impairment policy and determined, after the recognition of OTTI, that the remaining declines in fair value were temporary. The Company did not intend to sell its underwater fixed maturities, and it was not more likely than not that the Company will be required to sell the securities before recovery of cost or amortized cost, which may be maturity. This conclusion is supported by the Company’s spread analyses, cash flow modeling and expected continuation of contractually required principal and interest payments.
As of March 31, 2014 and December 31, 2013, the Company has evaluated the near-term prospects of its available-for-sale equity securities with unrealized losses in relation to the severity and duration of the impairment. Based on that evaluation, the Company concluded that it had the ability and intent to hold these investments until a recovery of fair value.
Changes in the amount of credit-related OTTI recognized in net income where the portion related to other factors was recognized in other comprehensive income (loss) (OCI) were as follows:
	For the Three Months Ended
	March 31,
	2014			2013
Balance, beginning of period	$	23.1		$	36.2
Increases recognized in the current period:
For which an OTTI was previously recognized	—			0.4
Decreases attributable to:
Securities sold or paid down during the period	(1.3		)	(2.6		)
Balance, end of period	$	21.8		$	34

Mortgage_Loans

Mortgage Loans	3 Months Ended
	Mar. 31, 2014
Mortgage Loans on Real Estate [Abstract]	'
Mortgage Loans	'
	5. Mortgage Loans
	The Company originates and manages a portfolio of mortgage loans which are secured by first-mortgage liens on income-producing commercial real estate, primarily in the retail, industrial and office building sectors. Loans are underwritten based on loan-to-value (LTV) ratios and debt-service coverage ratios (DSCR) as well as detailed market, property and borrower analyses. The Company’s mortgage loan portfolio is considered a single portfolio segment and class of financing receivables, which is consistent with how the Company assesses and monitors the risk and performance of the portfolio. A large majority of these loans have personal guarantees, and all mortgaged properties are inspected annually. The Company’s mortgage loan portfolio is generally diversified by geographic region, loan size and scheduled maturity. As of March 31, 2014, the three states with the largest concentrations of the Company’s commercial mortgage loans were California, primarily the Los Angeles area, Texas and Washington. Loans in these states comprised 29.5%, 11.3% and 8.8% of the total portfolio, respectively.
	Allowance for Mortgage Loans
	The allowance for losses on mortgage loans provides for the risk of credit loss inherent in the lending process. The allowance includes a portfolio reserve for probable losses incurred but not specifically identified and, as needed, specific reserves for impaired loans. The allowance for losses on mortgage loans is evaluated at each reporting period and adjustments are recorded when appropriate. To assist in its evaluation of the allowance for loan losses, the Company utilizes the following credit quality indicators to categorize its loans as lower, medium or higher risk:
	•	Lower Risk Loans – Loans with an LTV ratio of less than 65%, and a DSCR of greater than 1.50.
	•	Medium Risk Loans – Loans that have an LTV ratio of less than 65% but a DSCR below 1.50, or loans with an LTV ratio between 65% and 80%, and a DSCR of greater than 1.50.
	•	Higher Risk Loans – Loans with an LTV ratio greater than 80%, or loans which have an LTV ratio between 65% and 80%, and a DSCR of less than 1.50.
	Loans are specifically evaluated for impairment if the Company considers it probable that amounts due according to the terms of the loan agreement will not be collected, or the loan is modified in a troubled debt restructuring. The Company establishes specific reserves for these loans when the fair value is less than its carrying value.
	The following table sets forth the Company’s mortgage loans by risk category:
		As of March 31, 2014					As of December 31, 2013
		Carrying			% of Total		Carrying			% of Total
		Value					Value
	Lower risk	$	2,193.50		60.8	%	$	2,195.10		61.9	%
	Medium risk	851.5			23.6		843.5			23.8
	Higher risk	562			15.6		506.3			14.3
	Credit quality indicator total	3,607.00			100	%	3,544.90			100	%
	Loans specifically evaluated for impairment (1)	2					2
	Other (2)	(5.8		)			(5.9		)
	Total	$	3,603.20				$	3,541.00
	________________
	-1	As of March 31, 2014 and December 31, 2013, reserve amounts of $0.2 and $0.2, respectively, were held for loans specifically evaluated for impairment.
	-2	Includes the allowance for loan losses and deferred fees and costs.
	In developing its portfolio reserve for incurred but not specifically identified losses, the Company evaluates loans by risk category and considers its past loan experience, commercial real estate market conditions, and third-party data for expected losses on loans with similar LTV ratios and DSCRs. Each loan’s LTV ratio and DSCR is updated annually, primarily during the third quarter. In developing its provision for specifically identified loans, a market valuation on the collateral is performed to determine if a reserve is necessary.
	The following table summarizes the activity in the Company’s allowance for mortgage loan losses, which includes portfolio and specific reserves:
		For the Three Months Ended
		March 31,
		2014			2013
	Allowance at beginning of period	$	8.1		$	7.9
	Provision for specific loans	—			0.2
	Provision for loans not specifically identified	—			—
	Charge-offs	—			—
	Allowance at end of period	$	8.1		$	8.1
	Non-performing loans, defined generally as those in default, close to being in default or more than 90 days past due, are placed on non-accrual status. As of both March 31, 2014 and December 31, 2013, no loans were considered non-performing.

Derivative_Instruments

Derivative Instruments	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments and Hedging Activities Disclosure [Text Block]	'
	6. Derivative Instruments
	The following table sets forth the fair value of the Company’s derivative instruments. In the consolidated balance sheets, derivative contracts in an asset position are included in other invested assets, derivative contracts in a liability position are included in other liabilities, and embedded derivative liabilities are included in funds held under deposit contracts.
		As of March 31, 2014									As of December 31, 2013
		Notional			Fair Value						Notional		Fair Value
		Amount			Assets			Liabilities			Amount		Assets		Liabilities
	Derivatives designated as hedges:
	Cash flow hedges:
	Interest rate swaps	$	97.1		$	4.8		$	—		$	97.1	$	4.6	$	—
	Foreign currency swaps	447.8			—			34			440.4		—		28.4
	Total derivatives designated as hedges	$	544.9		$	4.8		$	34		$	537.5	$	4.6	$	28.4
	Derivatives not designated as hedges:
	Equity index options	$	1,250.00		$	44.9		$	0.5		$	1,060.90	$	38.8	$	1.6
	Foreign currency forwards	11.7			—			—			49.3		0.3		0.4
	Embedded derivatives	—			—			121.3			—		—		92.1
	Other derivatives	117.1			0.5			—			66		0.3		—
	Total derivatives not designated as hedges	1,378.80			45.4			121.8			1,176.20		39.4		94.1
	Total derivatives	$	1,923.70		$	50.2		$	155.8		$	1,713.70	$	44	$	122.5
	Collateral Arrangements and Offsetting of Financial Instruments
	The Company’s derivative contracts are typically governed by an International Swaps and Derivatives Association (“ISDA”) Master Agreement, except for foreign currency forwards which do not require an ISDA. For each ISDA, the Company and the counterparty have also entered into a credit support annex (“CSA”) to reduce the risk of counterparty default in derivative transactions by requiring the posting of cash collateral or other financial assets. The CSA requires either party to post collateral when net exposures from all derivative contracts between the parties exceed pre-determined contractual thresholds, which vary by counterparty. The amount of net exposure is the difference between the derivative contract’s fair value and the fair value of the collateral held for such agreements with each counterparty. Collateral amounts required to be posted or received are determined daily based on the net exposure with each counterparty under a master netting agreement. The Company does not offset recognized collateral amounts posted or received against the fair value amounts recognized for derivative contracts.
	In the consolidated balance sheets, the Company recognizes cash collateral received in cash and cash equivalents and the obligation to return cash collateral in other liabilities. Non-cash collateral received is not recognized in the consolidated balance sheets. In the event of default, the counterparty relinquishes claim to the assets pledged as collateral, and the Company recognizes the collateral as its own asset recorded at fair value, or, in the case of cash collateral, derecognizes its obligation to return collateral.
	The following tables present the potential effect of netting arrangements by counterparty on the Company’s consolidated balance sheets:
		As of March 31, 2014
					Gross Amount of Collateral (Received) Posted
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
	Assets:
	A	$	5.4		$	—		$	—		$	5.4
	B	13.5			—			—			13.5
	C	16.3			—			(15.7		)	0.6
	D	11.3			—			(9.5		)	1.8
	Other	3.7			—			(1.7		)	2
	Total derivative assets	$	50.2		$	—		$	(26.9	)	$	23.3
		As of March 31, 2014
					Gross Amount of Collateral Received (Posted)
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
	Liabilities:
	A	$	6.5		$	(0.9	)	$	—		$	5.6
	B	20.3			(7.5		)	(0.6		)	12.2
	E	6.1			(4.1		)	—			2
	Other	1.6			—			—			1.6
	Total derivative liabilities (1)	$	34.5		$	(12.5	)	$	(0.6	)	$	21.4
	_______________________
	-1	Excludes $121.3 of embedded derivatives which have no counterparty.
		As of December 31, 2013
					Gross Amount of Collateral (Received) Posted
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
	Assets:
	A	$	4.4		$	—		$	(0.2	)	$	4.2
	B	11			—			(3.0		)	8
	C	17.7			—			(17.4		)	0.3
	D	9.1			—			(6.9		)	2.2
	Other	1.8			—			—			1.8
	Total derivative assets	$	44		$	—		$	(27.5	)	$	16.5
		As of December 31, 2013
					Gross Amount of Collateral Received (Posted)
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
Liabilities:
A	$	5.3		$	—		$	—		$	5.3
B	16.9			—			(0.2		)	16.7
E	5.1			(2.8		)	—			2.3
Other	3.1			—			—			3.1
Total derivative liabilities (1)	$	30.4		$	(2.8	)	$	(0.2	)	$	27.4
_______________________
-1	Excludes $92.1 of embedded derivatives which have no counterparty.
Derivatives Designated as Hedges
The following table presents the amount of gain (loss) recognized in OCI on derivatives that qualify as cash flow hedges:
	For the Three Months Ended
	March 31,
	2014			2013
Interest rate swaps	$	0.8		$	(0.3	)
Foreign currency swaps	(5.7		)	8.2
Total	$	(4.9	)	$	7.9
See Note 9 for amounts reclassified out of AOCI into net income for the three months ended March 31, 2014 and 2013. The Company expects to reclassify net gains of $1.4 from AOCI into net income in the next 12 months, which includes both discontinued hedges and periodic settlements of active hedges. Actual amounts may vary from this estimate as a result of market conditions.
As of March 31, 2014, the maximum term over which the Company is hedging its exposure to the variability in future cash flows is approximately ten years. The Company recorded no ineffectiveness for cash flow hedging relationships for the three months ended March 31, 2014 and 2013.
Derivatives Not Designated as Hedges
The following table shows the effect of derivatives not designated as hedges on the consolidated statements of income, which is recorded in net realized gains (losses):
	For the Three Months Ended
	March 31,
	2014			2013
Equity indexed options	$	3.9		$	3.2
Foreign currency forwards	—			1.6
Embedded derivatives	(6.3		)	(2.0		)
Other derivatives	0.1			(0.2		)
Total	$	(2.3	)	$	2.6

Fair_Value_Of_Financial_Instru

Fair Value Of Financial Instruments	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Of Financial Instruments	'
	7. Fair Value of Financial Instruments
	The Company determines the fair value of its financial instruments based on the fair value hierarchy, which favors the use of observable inputs over the use of unobservable inputs when measuring fair value. The Company has categorized its financial instruments into the three-level hierarchy, which 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). The level to which a fair value measurement falls is assigned based on the lowest-level input that is significant to the measurement. The fair value measurements for the Company’s financial instruments are categorized as follows:
	•	Level 1 — Unadjusted quoted prices in active markets for identical instruments. This category primarily consists of exchange-traded marketable equity securities and mutual fund investments.
	•	Level 2 — Quoted prices for similar instruments in active markets and model-derived valuations whose inputs are observable. This category includes those financial instruments that are valued using industry-standard pricing methodologies or models. All significant inputs are observable or derived from observable information in the marketplace. Financial instruments in this category primarily include corporate fixed maturities and mortgage-backed securities.
	•	Level 3 — Fair value estimates whose significant inputs are unobservable. This includes financial instruments for which fair value is estimated based on industry-standard pricing methodologies and internally developed models utilizing significant inputs not based on or corroborated by readily available market information. In limited circumstances, this may also utilize estimates based on non-binding broker quotes. This category primarily consists of funds held under deposit contracts and mortgage loans.
	The following tables present the fair value of the Company’s financial instruments classified by the valuation hierarchy described above. The financial instruments are separated between those measured at fair value on a recurring basis and those not carried at fair value, but for which disclosure of fair value is required.
		As of March 31, 2014
		Carrying				Fair Value			Level 1				Level 2				Level 3
		Amount
	Measured at fair value on a recurring basis:
	Financial assets:
	Fixed maturities, available-for-sale:
	U.S. government and agencies	$	812.9			$	812.9		$	—			$	812.9			$	—
	State and political subdivisions	751.2				751.2			—				751.2				—
	Corporate securities	17,853.70				17,853.70			—				17,761.60				92.1
	Residential mortgage-backed securities	2,789.10				2,789.10			—				2,788.90				0.2
	Commercial mortgage-backed securities	1,514.50				1,514.50			—				1,509.00				5.5
	Other debt obligations	607.6				607.6			—				544.7				62.9
	Total fixed maturities, available-for-sale	24,329.00				24,329.00			—				24,168.30				160.7
	Marketable equity securities, available-for-sale	126.8				126.8			68.2				58.6				—
	Marketable equity securities, trading	460.3				460.3			460				—				0.3
	Investments in limited partnerships, private equity funds	41.5				41.5			—				—				41.5
	Other invested assets:
	Equity indexed options	44.9				44.9			—				42.4				2.5
	Other	9.1				9.1			0.6				5.2				3.3
	Total other invested assets	54				54			0.6				47.6				5.8
	Total investments carried at fair value	25,011.60				25,011.60			528.8				24,274.50				208.3
	Separate account assets	973.8				973.8			973.8				—				—
	Total assets at fair value	$	25,985.40			$	25,985.40		$	1,502.60			$	24,274.50			$	208.3
	Financial liabilities:
	Embedded derivatives	$	121.3			$	121.3		$	—			$	—			$	121.3
	Foreign currency swaps	34				34			—				34				—
	Total liabilities at fair value	$	155.3			$	155.3		$	—			$	34			$	121.3
	Subject to fair value disclosure requirements:
	Financial assets:
	Mortgage loans	$	3,603.20			$	3,785.70		$	—			$	—			$	3,785.70
	Investments in limited partnerships, tax credit investments	257.8				224.7			—				224.7				—
	Cash and cash equivalents	108.5				108.5			108.5				—				—
	Financial liabilities:
	Funds held under deposit contracts (1):
	Deferred annuities	$	12,420.70			$	12,332.00		$	—			$	—			$	12,332.00
	Income annuities	6,536.20				7,924.60			—				—				7,924.60
	Notes payable:
	Capital Efficient Notes (CENts)	149.9				157.5			—				157.5				—
	Senior notes	299.7				319.1			—				319.1				—
	_______________________
	-1	The carrying value of this balance excludes $6,183.6 of liabilities related to insurance contracts and embedded derivatives.
		As of December 31, 2013
		Carrying				Fair Value			Level 1				Level 2				Level 3
		Amount
	Measured at fair value on a recurring basis:
	Financial assets:
	Fixed maturities, available-for-sale:
	U.S. government and agencies	$	344.4			$	344.4		$	—			$	327			$	17.4
	State and political subdivisions	751.5				751.5			—				751.5				—
	Corporate securities	17,352.40				17,352.40			—				17,324.40				28
	Residential mortgage-backed securities	2,756.00				2,756.00			—				2,755.80				0.2
	Commercial mortgage-backed securities	1,518.40				1,518.40			—				1,512.60				5.8
	Other debt obligations	615				615			—				486.2				128.8
	Total fixed maturities, available-for-sale	23,337.70				23,337.70			—				23,157.50				180.2
	Marketable equity securities, available-for-sale	134.3				134.3			77.4				56.9				—
	Marketable equity securities, trading	474.4				474.4			474.1				—				0.3
	Investments in limited partnerships, private equity funds	31.2				31.2			—				—				31.2
Other invested assets	47.8				47.8			0.6				5.2				42
Total investments carried at fair value	24,025.40				24,025.40			552.1				23,219.60				253.7
Separate account assets	978.4				978.4			978.4				—				—
Total assets at fair value	$	25,003.80			$	25,003.80		$	1,530.50			$	23,219.60			$	253.7
Financial liabilities:
Embedded derivatives	92.1				92.1			—				—				92.1
Total liabilities at fair value	$	92.1			$	92.1		$	—			$	—			$	92.1
Subject to fair value disclosure requirements:
Financial assets:
Mortgage loans	$	3,541.00			$	3,664.60		$	—			$	—			$	3,664.60
Investments in limited partnerships, tax credit investments	265.1				237.9			—				237.9				—
Cash and cash equivalents	76				76			76				—				—
Financial liabilities:
Funds held under deposit contracts (1):
Deferred annuities	$	12,017.00			$	11,884.20		$	—			$	—			$	11,884.20
Income annuities	6,514.30				7,548.00			—				—				7,548.00
Notes payable:
Capital Efficient Notes (CENts)	149.9				156.2			—				156.2				—
Senior notes	299.6				319.3			—				319.3				—
_________________
-1	The carrying value of this balance excludes $6,111.6 of liabilities related to insurance contracts and embedded derivatives.
Financial Instruments Measured at Fair Value on a Recurring Basis
Fixed Maturities
The vast majority of the Company’s fixed maturities have been classified as Level 2 measurements. To make this assessment, the Company determines whether the market for a security is active and if significant pricing inputs are observable. The Company predominantly utilizes third-party independent pricing services to assist management in determining the fair value of its fixed maturity securities. As of March 31, 2014 and December 31, 2013, respectively, pricing services provided prices for 96.7% and 96.6% of the Company’s fixed maturities.
The Company analyzes the prices received from the pricing services to ensure they represent a reasonable estimate of fair value, including analytical reviews of prices between reporting periods. The Company also performs procedures to gain assurance on the overall reasonableness and consistent use of inputs, valuation methodologies and compliance with fair value accounting standards. This includes an annual review of pricing methodologies and inputs by asset class and performing periodic due diligence procedures, including quarterly deep-dive analyses, monthly price fluctuation analyses, and corroboration of prices by obtaining secondary pricing quotes for selected securities. Based upon its analyses, the Company generally does not adjust prices obtained from the pricing services.
The pricing services provide prices where observable inputs are available, utilizing evaluated pricing models that vary by asset class. If sufficient objectively verifiable information about a security’s valuation is not available, the pricing services will not provide a valuation for the security. In these situations, the security’s fair value is determined using internal pricing models.
As of March 31, 2014, the Company had $683.3 or 2.8%, of its fixed maturities invested in private placement securities. The use of significant observable inputs in determining the fair value of the Company’s investments in private placement securities resulted in the classification of $649.8, or 95.1%, as Level 2 measurements as of March 31, 2014. As of December 31, 2013, the Company had $653.7, or 2.8%, of its fixed maturities invested in private placement securities, of which $635.6, or 97.2%, were classified as Level 2 measurements.
Corporate Securities
As of March 31, 2014 and December 31, 2013, the fair value of the Company’s corporate securities classified as Level 2 measurements was $17,761.6 and $17,324.4, respectively. The following table presents additional information about the composition of the Level 2 corporate securities:
	As of March 31, 2014									As of December 31, 2013
	Amount				% of Total		# of Securities			Amount				% of Total			# of Securities
Significant security sectors:
Industrial	$	3,329.10			18.7	%	220			$	3,237.30			18.7	%		223
Consumer staples	2,733.40				15.4		157			2,681.60				15.5			159
Consumer discretionary	2,223.40				12.5		189			2,184.70				12.6			184
Utilities	1,949.80				11		148			1,897.90				11			146
Financial	1,894.50				10.7		157			1,819.20				10.5			158
Weighted-average coupon rate	5.51		%							5.6		%
Weighted-average remaining years to contractual maturity	9.4									9.6
The majority of corporate securities classified as Level 2 measurements are priced by independent pricing services utilizing evaluated pricing models. Because many corporate securities do not trade on a daily basis, evaluated pricing models apply available information through processes such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to prepare valuations. The significant inputs for security evaluations include benchmark yields, reported trades, broker-dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and other reference data, including market research publications.
As of March 31, 2014 and December 31, 2013, $538.3, or 3.0%, and $523.5, or 3.0%, respectively, of Level 2 corporate securities were privately placed. These securities were valued using a matrix pricing approach. The significant inputs to the measurement are the base credit spread, treasury yield and expected future cash flows of the security, which are all observable inputs. The base spread is determined based on trades of similar publicly-traded securities, and the expected future cash flows are based on the contractual terms of the security. The valuation approach also incorporates an illiquidity spread, determined based on premiums demanded by investors for privately placed securities. The illiquidity spread is an unobservable input, which ranges from 0 to 25 basis points and is based on the credit quality of the security. The illiquidity spread does not significantly impact the resulting valuation.
Residential Mortgage-backed Securities
As of March 31, 2014 and December 31, 2013, the fair value of the Company’s residential mortgage-backed securities (RMBS) classified as Level 2 measurements was $2,788.9 and $2,755.8, respectively. These securities were primarily fixed-rate, with a weighted-average coupon rate of 4.33% and 4.39% as of March 31, 2014 and December 31, 2013, respectively.
Level 2 RMBS securities are priced by pricing services that utilize evaluated pricing models. Because many RMBS do not trade on a daily basis, evaluated pricing models apply available information through processes such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to prepare evaluations. The significant observable inputs for security evaluations include benchmark yields, reported trades, broker-dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and other reference data, including market research publications. In addition, the pricing services use models and processes to develop prepayment and interest rate scenarios. The pricing services monitor market indicators, industry and economic events, and their models take into account market convention.
Agency securities comprised 89.5% and 89.2% of the Company’s Level 2 RMBS as of March 31, 2014 and December 31, 2013, respectively. The following table presents additional information about the composition of the Level 2 non-agency RMBS securities:
	As of March 31, 2014						As of December 31, 2013
	Fair Value				% of Total		Fair Value				% of Total
Highest rating agency rating:
AAA	$	52			17.7	%	$	42.5			14.3	%
AA through BBB	79.1				26.9		88				29.5
BB & below	163				55.4		167.8				56.2
Total non-agency RMBS	$	294.1			100	%	$	298.3			100	%
Non-agency RMBS with super senior subordination	$	184.2			62.6	%	$	178.3			59.8	%
As of March 31, 2014 and December 31, 2013, the Company’s non-agency Level 2 RMBS had a weighted-average credit enhancement of 9.0% and 8.8%, respectively. As of March 31, 2014 and December 31, 2013, $100.8 and $110.3, or 34.3% and 37.0%, respectively, of the Company’s non-agency Level 2 RMBS had an origination or vintage year of 2004 and prior. The underlying collateral in years prior to 2005 is considered higher quality as underwriting standards were more stringent.
Commercial Mortgage-backed Securities
As of March 31, 2014 and December 31, 2013, the fair value of the Company’s commercial mortgage-backed securities (CMBS) classified as Level 2 measurements was $1,509.0 and $1,512.6, respectively. The weighted-average coupon rate on these securities was 4.78% and 4.82% as of March 31, 2014 and December 31, 2013, respectively.
Level 2 CMBS securities are priced by pricing services that utilize evaluated pricing models. Because many CMBS do not trade on a daily basis, evaluated pricing models apply available information through processes, such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to prepare evaluations. The significant observable inputs for security evaluations include benchmark yields, reported trades, broker-dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, new issues, monthly payment information and other reference data, including market research publications.
The Company’s Level 2 CMBS securities were primarily non-agency securities, which comprised 84.3% and 83.3% of Level 2 CMBS as of March 31, 2014 and December 31, 2013, respectively. The non-agency Level 2 CMBS had an estimated weighted-average credit enhancement of 32.0% and 31.4% as of March 31, 2014 and December 31, 2013, respectively, and 98.8% and 98.7% were in the most senior tranche as of March 31, 2014 and December 31, 2013, respectively.
The following table presents additional information about the composition of the underlying collateral of Level 2 non-agency CMBS securities:
	As of March 31, 2014			As of December 31, 2013
	% of Total			% of Total
Significant underlying collateral locations:
New York	21.8	%		21.8	%
California	11.6			11.7
Florida	7.7			7.5
Texas	7.1			7.3
Significant underlying collateral property types:
Office buildings	31.7	%		32.6	%
Retail shopping centers	30.7			31.5
Marketable Equity Securities
Marketable equity securities are investments in common stock and certain nonredeemable preferred stocks. The securities primarily consist of investments in publicly traded companies. When the fair values of the Company’s marketable equity securities are based on quoted market prices in active markets for identical assets, they are classified as Level 1 measurements. The fair values of nonredeemable preferred stocks are valued by pricing services utilizing evaluated pricing models and are classified as Level 2 measurements. These valuations are created based on benchmark curves using industry standard inputs and exchange prices of underlying securities and common stock of the same issuer.
Equity Indexed Options
Equity indexed options consist primarily of Standard & Poor’s 500 Index® (“S&P 500”) options. As of March 31, 2014, the fair value of these indexed options was determined using option pricing models. Significant inputs include index implied volatilities, index dividend yields, index prices, a risk-free rate, option term and option strike price. As these inputs are considered observable, the indexed options are classified as Level 2.
Separate Accounts
Separate account assets are primarily invested in mutual funds with published net asset values (NAVs), which are classified as Level 1 measurements.
Embedded Derivatives
Embedded derivatives relate to the Company’s fixed indexed annuity (FIA) product, which credits interest to the policyholder’s account balance based on increases in equity or commodity indexes. The fair value of the embedded derivative reflects the excess of the projected benefits based on the indexed fund value over the projected benefits based on the guaranteed fund value. The excess benefits are projected using best estimates for surrenders, mortality and indexed fund interest, and discounted at a risk-free rate plus a spread for nonperformance risk. Because the estimates utilize significant unobservable inputs, the Company classifies the embedded derivative as a Level 3 measurement.
Foreign Currency Swaps
Foreign currency swaps are valued using an income approach. These swaps are priced utilizing a discounted cash flow model. The significant inputs include the projected cash flows, currency spot rates, swap yield curve and cross currency basis curve. These are considered observable inputs, and as such are classified as Level 2 measurements.
Other Financial Instruments Subject to Fair Value Disclosure Requirements
Cash and cash equivalents consist of demand bank deposits and short-term highly liquid investments with original maturities of three months or less at the time of purchase. Cash equivalents, which are reported at cost and approximate fair value, were $13.8 and $37.8 as of March 31, 2014 and December 31, 2013, respectively. These are classified as Level 1 measurements.
The fair value of the Company’s mortgage loans are measured by discounting the projected future cash flows using the current rate at which the loans would be made to borrowers with similar credit ratings and for the same maturities. Because these estimates utilize significant unobservable inputs, mortgage loans are classified as a Level 3 measurement.
The fair value of the Company’s investments in limited partnerships associated with tax credit investments are estimated based on the discounted cash flows over the remaining life of the tax credits, using the original internal rate of return for each investment. As these inputs are considered observable, investments in limited partnerships are classified as a Level 2 measurement.
The fair values of funds held under deposit contracts related to investment-type contracts are estimated based on the present value of the discounted cash flows. Cash flows were projected using best estimates for lapses, mortality and expenses, and discounted at a risk-free rate plus a nonperformance risk spread. Because these estimates utilize significant unobservable inputs, the Company classifies funds held under deposit contracts as a Level 3 measurement.
The fair value of the Company’s notes payable is determined by an independent pricing service utilizing evaluated pricing models, consistent with how fair value was determined for the majority of its corporate securities. The use of observable inputs resulted in the classification of notes payable as a Level 2 measurement.
Rollforward of Financial Instruments Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)
The following tables present additional information about financial instruments measured at fair value on a recurring basis and for which the Company has utilized significant unobservable inputs (Level 3) to determine fair value for the three months ended March 31, 2014:
																			Unrealized Gains (Losses) Included in:
	Balance as of January 1, 2014				Purchases			Sales				Transfers				Other(3)			Net			Other			Realized			Balance as of March 31, 2014
					and			and				In and/or							Income(4)			Comprehensive			Gains
					issues(1)			settlements(1)				(Out) of										Income (Loss)			(Losses)(4)
												Level 3(2)
Financial Assets:
Fixed maturities, available-for-sale:
U.S. government and agencies	$	17.4			$	—		$	—			$	(17.4	)		$	—		$	—		$	—		$	—		$	—
Corporate securities	28				24.5			—				39				(3.0		)	—			3.6			—			92.1
Residential mortgage-backed securities	0.2				—			—				—				—			—			—			—			0.2
Commercial mortgage-backed securities	5.8				—			—				—				(0.3		)	—			—			—			5.5
Other debt obligations	128.8				—			—				(66.7		)		(0.4		)	—			1.2			—			62.9
Total fixed maturities, available-for-sale	180.2				24.5			—				(45.1		)		(3.7		)	—			4.8			—			160.7
Marketable equity securities, trading	0.3				—			—				—				—			—			—			—			0.3
Investments in limited partnerships	31.2				10.3			—				—				—			—			—			—			41.5
Other invested assets:
Equity indexed options	38.8				0.9			—				(36.7		)		(0.4		)	(3.0		)	—			2.9			2.5
Other	3.2				—			—				—				—			0.1			—			—			3.3
Total other invested assets	42				0.9			—				(36.7		)		(0.4		)	(2.9		)	—			2.9			5.8
Total Level 3 assets	$	253.7			$	35.7		$	—			$	(81.8	)		$	(4.1	)	$	(2.9	)	$	4.8		$	2.9		$	208.3
Financial Liabilities:
Embedded derivatives	$	92.1			$	23		$	(0.1	)		$	—			$	—		$	6.3		$	—		$	—		$	121.3
Total Level 3 liabilities	$	92.1			$	23		$	(0.1	)		$	—			$	—		$	6.3		$	—		$	—		$	121.3
_______________
-1	Issues and settlements are related to the Company’s embedded derivative liabilities.
-2	Transfers into and/or out of Level 3 are reported at the value as of the beginning of the period in which the transfer occurs. Gross transfers into Level 3 were $39.0 for the three months ended March 31, 2014. Gross transfers out of Level 3 were $120.8 for the three months ended March 31, 2014, of which $84.1 were related to fixed maturities for which observable inputs became available. Additionally, transfers out included a change in valuation methodology for equity indexed options during the first quarter of 2014 to a method that uses significant observable inputs. Such securities are now classified as Level 2.
-3	Other is comprised of transactions such as pay downs, calls, amortization and redemptions.
-4	Realized and unrealized gains and losses for investments in limited partnerships are included in net investment income. All other realized and unrealized gains and losses recognized in net income are included in net realized gains (losses). Amounts shown for financial liabilities are (gains) losses in net income.
The following tables present additional information about financial instruments measured at fair value on a recurring basis and for which the Company has utilized significant unobservable inputs (Level 3) to determine fair value for the three months ended March 31, 2013:
																			Unrealized Gains (Losses) Included in:
	Balance as of January 1, 2013				Purchases			Sales				Transfers				Other(3)			Net			Other			Realized			Balance as of March 31, 2013
					and			and				In and/or							Income(4)			Comprehensive			Gains
					issues(1)			settlements(1)				(Out) of										Income			(Losses)(4)
												Level 3(2)
Financial Assets:
Fixed maturities, available-for-sale:
Corporate securities	$	38.9			$	—		$	—			$	—			$	(13.0	)	$	—		$	0.2		$	(0.1	)	$	26
Residential mortgage-backed securities	—				—			—				0.2				—			—			—			—			0.2
Commercial mortgage-backed securities	18.8				—			—				—				(3.7		)	—			(0.3		)	—			14.8
Other debt obligations	73				5.5			—				—				—			—			(1.0		)	—			77.5
Total fixed maturities, available-for-sale	130.7				5.5			—				0.2				(16.7		)	—			(1.1		)	(0.1		)	118.5
Marketable equity securities, available-for-sale	5				—			—				—				—			—			—			—			5
Marketable equity securities, trading	0.2				—			—				—				—			—			—			—			0.2
Investments in limited partnerships	28.6				0.6			—				—				(1.1		)	0.5			—			—			28.6
Other invested assets	7.8				4.5			—				—				(1.0		)	3			—			0.3			14.6
Total Level 3 assets	$	172.3			$	10.6		$	—			$	0.2			$	(18.8	)	$	3.5		$	(1.1	)	$	0.2		$	166.9
Financial Liabilities:
Embedded derivatives	14.1				5.9			(0.1		)		—				—			2			—			—			21.9
Total Level 3 liabilities	$	14.1			$	5.9		$	(0.1	)		$	—			$	—		$	2		$	—		$	—		$	21.9
_______________
-1	Issues and settlements are related to the Company’s embedded derivative liabilities.
-2	Transfers into and/or out of Level 3 are reported at the value as of the beginning of the period in which the transfer occurs. Gross transfers into Level 3 were $0.2 for the three months ended March 31, 2013. Gross transfers out of Level 3 were $0.0 for the three months ended March 31, 2013.
-3	Other is comprised of transactions such as pay downs, calls, amortization and redemptions.
-4	Realized and unrealized gains and losses for investments in limited partnerships are included in net investment income. All other realized and unrealized gains and losses recognized in net income are included in net realized gains (losses). Amounts shown for financial liabilities are (gains) losses in net income.

Deferred_Policy_Acquisition_Co

Deferred Policy Acquisition Costs (DAC) and Deferred Sales Inducements (DSI)	3 Months Ended
	Mar. 31, 2014
Deferred Policy Acquisition Cost Deferred Sales Inducement [Abstract]	'
Deferred Policy Acquisition Costs (DAC) and Deferred Sales Inducements (DSI)	'
	8. Deferred Policy Acquisition Costs (DAC) and Deferred Sales Inducements (DSI)
	The following table provides a reconciliation of the beginning and ending balance for DAC:
		For the Three Months Ended
		March 31,
		2014			2013
	Unamortized balance at beginning of period	$	419.9		$	367.9
	Deferral of acquisition costs	40.2			17.9
	Adjustments for realized (gains) losses	1.1			0.2
	Amortization — excluding unlocking	(15.5		)	(15.5		)
	Amortization — impact of assumption and experience unlocking	(4.4		)	(3.4		)
	Unamortized balance at end of period	441.3			367.1
	Accumulated effect of net unrealized gains	(121.2		)	(195.0		)
	Balance at end of period	$	320.1		$	172.1
	The following table provides a reconciliation of the beginning and ending balance for DSI, which is included in receivables and other assets in the consolidated balance sheets. DSI amortization is included in interest credited in the consolidated statements of income.
		For the Three Months Ended
		March 31,
		2014			2013
	Unamortized balance at beginning of period	$	154.8		$	153.4
	Capitalizations	9.6			13.3
	Adjustments for realized (gains) losses	0.3			0.2
	Amortization — excluding unlocking	(10.6		)	(10.3		)
	Amortization — impact of assumption and experience unlocking	(3.8		)	(2.5		)
	Unamortized balance at end of period	150.3			154.1
	Accumulated effect of net unrealized gains	(86.5		)	(122.5		)
	Balance at end of period	$	63.8		$	31.6

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Stockholders' Equity	'
	9. Stockholders' Equity
	The following tables summarize the components of AOCI and the adjustments to OCI for amounts reclassified from AOCI into net income for the three months ended March 31, 2014:
		Net unrealized			OTTI on fixed			Adjustment			Net gains			Accumulated
		gains (losses) on			maturities			for DAC			(losses) on			other
		available-for-			not related to			and DSI (3)			cash flow			comprehensive
		sale securities			credit losses  (2)						hedges			income
	Balance as of January 1, 2014	$	737.8		$	(14.2	)	$	(113.1	)	$	(16.9	)	$	593.6
	Other comprehensive income (loss) before reclassifications, net of taxes (1)	237.1			—			(20.9		)	(3.2		)	213
	Reclassifications recorded in:
	Net investment income:
	Interest rate swaps	—			—			—			(0.5		)	(0.5		)
	Foreign currency swaps	—			—			—			0.2			0.2
	Net realized (gains) losses	(3.0		)	1.2			(1.4		)	—			(3.2		)
	Total provision (benefit) for income taxes	1			(0.4		)	0.5			0.1			1.2
	Total reclassifications from AOCI, net of taxes	(2.0		)	0.8			(0.9		)	(0.2		)	(2.3		)
	Other comprehensive income (loss) after reclassifications	235.1			0.8			(21.8		)	(3.4		)	210.7
	Balance as of March 31, 2014	$	972.9		$	(13.4	)	$	(134.9	)	$	(20.3	)	$	804.3
	___________________
	-1	Other comprehensive income (loss) before reclassifications is net of taxes of $127.6, $0.0, $(11.3), $(1.7) and $114.6, respectively, for the three months ended March 31, 2014.
	-2	Reclassification adjustments of OTTI on fixed maturities not related to credit losses are included in changes in unrealized gains and losses on available-for-sale securities within the consolidated statements of comprehensive income (loss).
	-3	See Note 8 for the adjustment for the accumulated effect of net unrealized gains separately presented for DAC and DSI.
	The following tables summarize the components of AOCI and the adjustments to OCI for amounts reclassified from AOCI into net income for the three months ended March 31, 2013:
		Net unrealized			OTTI on fixed			Adjustment			Net gains			Accumulated
		gains (losses) on			maturities not			for DAC			(losses) on			other
		available-for-			related to			and			cash flow			comprehensive
		sale securities			credit losses  (2)			DSI (3)			hedges			income
	Balance as of January 1, 2013	$	1,610.20		$	(19.6	)	$	(221.4	)	$	2		$	1,371.20
	Other comprehensive income (loss) before reclassifications, net of taxes (1)	(106.3		)	(0.4		)	15.3			5.1			(86.3		)
	Reclassifications recorded in:
	Net investment income:
	Interest rate swaps	—			—			—			(0.5		)	(0.5		)
	Foreign currency swaps	—			—			—			(0.5		)	(0.5		)
	Net realized (gains) losses	10.3			3.7			(0.4		)	—			13.6
	Total provision (benefit) for income taxes	(3.6		)	(1.3		)	0.1			0.4			(4.4		)
	Total reclassifications from AOCI, net of taxes	6.7			2.4			(0.3		)	(0.6		)	8.2
	Other comprehensive income (loss) after reclassifications	(99.6		)	2			15			4.5			(78.1		)
	Balance as of March 31, 2013	$	1,510.60		$	(17.6	)	$	(206.4	)	$	6.5		$	1,293.10
	___________________
	-1	Other comprehensive income (loss) before reclassifications is net of taxes of $(57.2), $(0.2), $8.2, $2.8 and $(46.4), respectively, for the three months ended March 31, 2013.
	-2	Reclassification adjustments of OTTI on fixed maturities not related to credit losses are included in changes in unrealized gains and losses on available-for-sale securities within the consolidated statements of comprehensive income (loss).
	-3	See Note 8 for the adjustment for the accumulated effect of net unrealized gains separately presented for DAC and DSI.
	Common Stock Outstanding
	The following table provides a reconciliation of changes in outstanding shares of common stock:
		Common Shares
	Balance as of January 1, 2013	119,087,677
	Common stock issued (1)	5,300,569
	Restricted stock issued, net	254,579
	Employee stock purchase plan shares issued	133,122
	Common stock repurchased (2)	(7,045,190	)
	Balance as of December 31, 2013	117,730,757
	Balance as of January 1, 2014	117,730,757
	Common stock issued	—
	Restricted stock issued, net	200,723
	Employee stock purchase plan shares issued	42,067
	Common stock repurchased (2)	(1,354,329	)
	Balance as of March 31, 2014	116,619,218
	_____________________
	-1	Includes 5,297,758 shares of common stock issued from the settlement of warrants.
	-2	Represents shares of common stock repurchased pursuant to the Company’s stock repurchase program that began in 2013, which are held in treasury, as well as shares repurchased and subsequently retired to satisfy employee income tax withholding pursuant to the Company’s Equity Plan.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-Based Compensation	'
	10. Stock-Based Compensation
	The following table summarizes the Company’s restricted stock activity for the three months ended March 31, 2014:
		Number of		Weighted-
		Shares		Average Fair
				Value
	Outstanding as of January 1, 2014	650,197		$	11.53
	Shares granted	206,940		20.27
	Shares vested	(7,095	)	10.79
	Shares forfeited	(6,217	)	11.96
	Outstanding as of March 31, 2014	843,825		$	13.68

Commitments_And_Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments And Contingencies	'
	11. Commitments and Contingencies
	Litigation
	Because of the nature of its business, the Company is subject to legal actions filed or threatened in the ordinary course of its business operations. The Company does not expect that any such litigation, pending or threatened, as of March 31, 2014, will have a material adverse effect on its consolidated financial condition, future operating results or liquidity.
	Other Commitments and Contingencies
	The Company has a service agreement with a third-party service provider to outsource the majority of its information technology infrastructure. On March 3, 2014, the Company elected to extend its initial five-year term of the service agreement for a 12-month renewal period, which expires July 31, 2015. The material terms of the agreement remain unchanged.
	As of March 31, 2014, the Company had no other material changes to its commitments or contingencies since December 31, 2013.

Segment_Information

Segment Information	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	12. Segment Information
	The Company offers a broad range of products and services that include retirement, group health and employee benefits and life insurance products. These operations are managed separately as three divisions, consisting of four business segments based on product groupings, and a fifth reportable segment consisting primarily of unallocated corporate items and surplus investment income. The five segments are Benefits, Deferred Annuities, Income Annuities, Individual Life and Other.
	The following tables present selected financial information by segment and reconcile segment pre-tax adjusted operating income (loss) to amounts reported in the consolidated statements of income.
		For the Three Months Ended March 31, 2014
		Benefits		Deferred			Income		Individual			Other			Total
				Annuities			Annuities		Life
	Operating revenues:
	Premiums	$	145	$	—		$	—	$	8.8		$	—		$	153.8
	Net investment income	5		150.1			97		70.9			1.4			324.4
	Policy fees, contract charges, and other	3.9		5.9			0.2		36.2			0.4			46.6
	Certain realized gains (losses)	—		(0.2		)	—		—			—			(0.2		)
	Total operating revenues	153.9		155.8			97.2		115.9			1.8			524.6
	Benefits and expenses:
	Policyholder benefits and claims	82.8		0.1			—		18.3			—			101.2
	Interest credited	—		87.5			82		65.2			(0.5		)	234.2
	Other underwriting and operating expenses	43.2		21.1			4.8		18.2			0.6			87.9
	Interest expense	—		—			—		—			8.2			8.2
	Amortization of DAC	0.1		16.9			1		1.9			—			19.9
	Total benefits and expenses	126.1		125.6			87.8		103.6			8.3			451.4
	Segment pre-tax adjusted operating income (loss)	$	27.8	$	30.2		$	9.4	$	12.3		$	(6.5	)	$	73.2
	Operating revenues	$	153.9	$	155.8		$	97.2	$	115.9		$	1.8		$	524.6
	Add: Excluded realized gains (losses)	—		(4.9		)	24.2		2.5			(0.9		)	20.9
	Total revenues	153.9		150.9			121.4		118.4			0.9			545.5
	Total benefits and expenses	126.1		125.6			87.8		103.6			8.3			451.4
	Income from operations before income taxes	$	27.8	$	25.3		$	33.6	$	14.8		$	(7.4	)	$	94.1
	As of March 31, 2014:
	Total assets	$	169.4	$	14,625.70		$	7,438.90	$	6,586.60		$	2,343.70		$	31,164.30
		For the Three Months Ended March 31, 2013
		Benefits		Deferred			Income		Individual			Other			Total
				Annuities			Annuities		Life
	Operating revenues:
	Premiums	$	148	$	—		$	—	$	9		$	—		$	157
	Net investment income	5.1		143.2			101.7		69.2			4.5			323.7
	Policy fees, contract charges, and other	3.5		5.8			1.9		33.1			5.6			49.9
	Certain realized gains (losses)	—		0.9			—		—			—			0.9
	Total operating revenues	156.6		149.9			103.6		111.3			10.1			531.5
	Benefits and expenses:
	Policyholder benefits and claims	101.4		—			—		18.1			—			119.5
	Interest credited	—		82.9			88.5		64.2			(0.3		)	235.3
	Other underwriting and operating expenses	41.7		21.7			5.4		16			7			91.8
	Interest expense	—		—			—		—			8.2			8.2
	Amortization of DAC	—		16.2			0.9		1.8			—			18.9
	Total benefits and expenses	143.1		120.8			94.8		100.1			14.9			473.7
	Segment pre-tax adjusted operating income (loss)	$	13.5	$	29.1		$	8.8	$	11.2		$	(4.8	)	$	57.8
	Operating revenues	$	156.6	$	149.9		$	103.6	$	111.3		$	10.1		$	531.5
	Add: Excluded realized gains (losses)	—		2.5			17.7		(0.2		)	5.6			25.6
	Total revenues	156.6		152.4			121.3		111.1			15.7			557.1
	Total benefits and expenses	143.1		120.8			94.8		100.1			14.9			473.7
	Income (loss) from operations before income taxes	$	13.5	$	31.6		$	26.5	$	11		$	0.8		$	83.4
	As of March 31, 2013:
	Total assets	$	151.5	$	12,739.20		$	7,607.50	$	6,597.80		$	2,491.80		$	29,587.80

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	13. Subsequent Events
	On May 9, 2014, the Company declared a dividend of $0.10 per common share, or approximately $11.6 in total, to shareholders of record on May 23, 2014. The dividend will be paid on or about June 6, 2014.

Summary_Of_Significant_Account1

Summary Of Significant Accounting Policies (Policy)	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Use of Estimates, Policy	'
	The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that may affect the amounts reported in the interim condensed consolidated financial statements and accompanying notes. These interim condensed consolidated financial statements are unaudited and in management’s opinion include all adjustments, consisting of normal recurring adjustments and accruals, necessary for a fair presentation.
Reclassification, Policy	'
	Certain reclassifications have been made to prior year financial information for it to conform to the current period presentation.
New Accounting Pronouncements Not yet Adopted, Policy	'
	Accounting Pronouncements Not Yet Adopted
	ASU 2014-01, Accounting for Investments in Qualified Affordable Housing Projects
	In January 2014, the FASB issued ASU 2014-01, Investments (Topic 323) – Equity Method and Joint Ventures: Accounting for Investments in Qualified Affordable Housing (AFH) Projects. This ASU provides companies with the option to elect the proportional method of amortization for AFH investments if certain criteria are met. Under this method, a company would amortize the cost of its investment in proportion to the tax credits and other tax benefits received. Amortization would be presented as a component of income tax expense. The standard is effective for annual and interim periods beginning on or after January 1, 2015, with retrospective application required. The standard does not apply to other types of tax credit investments. The Company is currently evaluating whether it will elect the proportional amortization method for its AFH investments and the impact that it may have on the consolidated financial statements.
Earnings Per Share, Policy	'
	Basic earnings per share represents the amount of earnings for the period available to each share of common stock outstanding during the reporting period. Diluted earnings per share represents the amount of earnings for the period available to each share of common stock outstanding during the reporting period, adjusted for the potential issuance of common stock, if dilutive.
	Participating securities are those for which the instrument holders are entitled to receive any dividends declared on the common stock concurrently with the holders of outstanding shares of common stock, on a one-to-one basis. These securities include restricted stock issued to the Company’s employees, as well as the Company’s warrants, which were previously exercisable for 18,975,744 common shares and were net-share settled on June 20, 2013. Participating securities are included in basic and diluted earnings per share, based on the application of the two-class method, for the portion of the period for which the securities were outstanding.
	For both the three months ended March 31, 2014 and 2013, stock options exercisable for 2,650,000 shares of common stock were excluded from the computation of diluted earnings per share, based on the application of the treasury stock method, because they were anti-dilutive.
Investments, Policy	'
	Other-Than-Temporary Impairments
	The Company’s review of investment securities for OTTI includes both quantitative and qualitative criteria. Quantitative criteria include the length of time and amount that each security is in an unrealized loss position (i.e., is underwater) and, for fixed maturities, whether expected future cash flows indicate that a credit loss exists.
	While all securities are monitored for impairment, the Company’s experience indicates that, under normal market conditions, securities for which the cost or amortized cost exceeds fair value by less than 20% do not typically represent a significant risk of impairment and, often, fair values recover over time as the factors that caused the declines improve. If the estimated fair value has declined and remained below cost or amortized cost by 20% or more for at least six months, the Company further analyzes the decrease in fair value to determine whether it is an other-than-temporary decline. To make this determination for each security, the Company considers, among other factors:
	•	Extent and duration of the decline in fair value below cost or amortized cost;
	•	The financial condition and near-term prospects of the issuer of the security, including any specific events that may affect its operations, earnings potential or compliance with terms and covenants of the security;
	•	Changes in the financial condition of the security’s underlying collateral;
	•	Any downgrades of the security by a rating agency;
	•	Nonpayment of scheduled interest, or the reduction or elimination of dividends;
	•	Other indications that a credit loss has occurred; and
	•	For fixed maturities, the Company’s intent to sell or whether it is more likely than not the Company will be required to sell the fixed maturity prior to recovery of its amortized cost, considering any regulatory developments, prepayment or call notifications and the Company’s liquidity needs.
	For fixed maturities, the Company concludes that an OTTI has occurred if a security is underwater and there is an intent to sell the security or if the present value of expected cash flows is less than the amortized cost of the security (i.e., a credit loss exists). In order to determine the amount of the credit loss, the Company calculates the recovery value by discounting its estimate of future cash flows from the security. The discount rate is the original effective yield for corporate securities or current effective yield for mortgage-backed and other structured securities.
	Determination of Credit-Related OTTI on Corporate Securities
	To determine the recovery value for a corporate security, the Company performs an analysis including, but not limited to, the following:
	•	Expected cash flows of the issuer;
	•	Fundamentals of the industry in which the issuer operates;
	•	Fundamentals of the issuer to determine what the Company would recover if the issuer were to file for bankruptcy;
	•	Expectations regarding defaults and recovery rates;
	•	Changes to the rating of the security by a rating agency;
	•	Third-party guarantees; and
	•	Additional available market information.
	Determination of Credit-Related OTTI on Structured Securities
	To determine the recovery value for a structured security, including residential mortgage-, commercial mortgage- and other asset-backed securities, the Company performs an analysis including, but not limited to, the following:
	•	Expected cash flows from the security;
	•	Creditworthiness;
	•	Delinquency ratios and loan-to-value ratios on the underlying collateral;
	•	Average cumulative collateral values, vintage year and level of subordination;
	•	Geographic concentrations; and
	•	Susceptibility to prepayment and anti-selection due to changes in the interest rate environment.
Derivatives, Offsetting Fair Value Amounts, Policy	'
	The Company does not offset recognized collateral amounts posted or received against the fair value amounts recognized for derivative contracts.
Loans and Leases Receivable, Allowance for Loan Losses, Policy	'
	The Company’s mortgage loan portfolio is considered a single portfolio segment and class of financing receivables, which is consistent with how the Company assesses and monitors the risk and performance of the portfolio
	The allowance for losses on mortgage loans provides for the risk of credit loss inherent in the lending process. The allowance includes a portfolio reserve for probable losses incurred but not specifically identified and, as needed, specific reserves for impaired loans. The allowance for losses on mortgage loans is evaluated at each reporting period and adjustments are recorded when appropriate. To assist in its evaluation of the allowance for loan losses, the Company utilizes the following credit quality indicators to categorize its loans as lower, medium or higher risk:
	•	Lower Risk Loans – Loans with an LTV ratio of less than 65%, and a DSCR of greater than 1.50.
	•	Medium Risk Loans – Loans that have an LTV ratio of less than 65% but a DSCR below 1.50, or loans with an LTV ratio between 65% and 80%, and a DSCR of greater than 1.50.
	•	Higher Risk Loans – Loans with an LTV ratio greater than 80%, or loans which have an LTV ratio between 65% and 80%, and a DSCR of less than 1.50.
	Loans are specifically evaluated for impairment if the Company considers it probable that amounts due according to the terms of the loan agreement will not be collected, or the loan is modified in a troubled debt restructuring. The Company establishes specific reserves for these loans when the fair value is less than its carrying value.
	In developing its portfolio reserve for incurred but not specifically identified losses, the Company evaluates loans by risk category and considers its past loan experience, commercial real estate market conditions, and third-party data for expected losses on loans with similar LTV ratios and DSCRs. Each loan’s LTV ratio and DSCR is updated annually, primarily during the third quarter. In developing its provision for specifically identified loans, a market valuation on the collateral is performed to determine if a reserve is necessary.
Loans and Leases Receivable, Nonaccrual Loan and Lease Status, Policy	'
	Non-performing loans, defined generally as those in default, close to being in default or more than 90 days past due, are placed on non-accrual status.
Fair Value of Financial Instruments, Policy	'
	The Company determines the fair value of its financial instruments based on the fair value hierarchy, which favors the use of observable inputs over the use of unobservable inputs when measuring fair value. The Company has categorized its financial instruments into the three-level hierarchy, which 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). The level to which a fair value measurement falls is assigned based on the lowest-level input that is significant to the measurement. The fair value measurements for the Company’s financial instruments are categorized as follows:
	•	Level 1 — Unadjusted quoted prices in active markets for identical instruments. This category primarily consists of exchange-traded marketable equity securities and mutual fund investments.
	•	Level 2 — Quoted prices for similar instruments in active markets and model-derived valuations whose inputs are observable. This category includes those financial instruments that are valued using industry-standard pricing methodologies or models. All significant inputs are observable or derived from observable information in the marketplace. Financial instruments in this category primarily include corporate fixed maturities and mortgage-backed securities.
	•	Level 3 — Fair value estimates whose significant inputs are unobservable. This includes financial instruments for which fair value is estimated based on industry-standard pricing methodologies and internally developed models utilizing significant inputs not based on or corroborated by readily available market information. In limited circumstances, this may also utilize estimates based on non-binding broker quotes. This category primarily consists of funds held under deposit contracts and mortgage loans.
Fair Value Transfer, Policy	'
	Transfers into and/or out of Level 3 are reported at the value as of the beginning of the period in which the transfer occurs.
Segment Reporting, Policy	'
	These operations are managed separately as three divisions, consisting of four business segments based on product groupings, and a fifth reportable segment consisting primarily of unallocated corporate items and surplus investment income. The five segments are Benefits, Deferred Annuities, Income Annuities, Individual Life and Other.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Schedule Of Earnings Per Share, Basic And Diluted	'
	The following table presents information relating to the Company’s calculations of basic and diluted earnings per share:
		For the Three Months Ended
		March 31,
		2014		2013
	Numerator:
	Net income	$	79.3	$	66
	Denominator:
	Weighted-average common shares outstanding – basic	117,460,386		138,093,261
	Add: dilutive effect of certain equity instruments	5,252		4,709
	Weighted-average common shares outstanding – diluted	117,465,638		138,097,970
	Net income per common share:
	Basic	$	0.68	$	0.48
	Diluted	$	0.68	$	0.48

Investments_Tables

Investments (Tables)	3 Months Ended
	Mar. 31, 2014
Investments [Abstract]	'
Summary Of Available-For-Sale Fixed Maturities And Marketable Equity Securities	'
	The following tables summarize the Company’s available-for-sale fixed maturities and marketable equity securities. The other-than-temporary impairments (OTTI) in accumulated other comprehensive income (AOCI) represent the amount of cumulative non-credit OTTI losses recorded in AOCI for securities that also had a credit-related impairment.
		Cost or			Gross			Gross			Fair Value			OTTI in
		Amortized			Unrealized			Unrealized						AOCI
		Cost			Gains			Losses
	As of March 31, 2014
	Fixed maturities:
	U.S. government and agencies	$	810.9		$	6.1		$	(4.1	)	$	812.9		$	—
	State and political subdivisions	730.9			24.5			(4.2		)	751.2			—
	Corporate securities	16,676.00			1,297.70			(120.0		)	17,853.70			(14.0		)
	Residential mortgage-backed securities	2,682.70			130.9			(24.5		)	2,789.10			(6.5		)
	Commercial mortgage-backed securities	1,428.50			93.9			(7.9		)	1,514.50			—
	Other debt obligations	567.2			42.2			(1.8		)	607.6			—
	Total fixed maturities	22,896.20			1,595.30			(162.5		)	24,329.00			(20.5		)
	Marketable equity securities, available-for-sale	119.4			7.7			(0.3		)	126.8			—
	Total	$	23,015.60		$	1,603.00		$	(162.8	)	$	24,455.80		$	(20.5	)
		Cost or			Gross			Gross			Fair Value			OTTI in
		Amortized			Unrealized			Unrealized						AOCI
		Cost			Gains			Losses
	As of December 31, 2013
	Fixed maturities:
	U.S. government and agencies	$	348.5		$	2.1		$	(6.2	)	$	344.4		$	—
	State and political subdivisions	748.2			17.6			(14.3		)	751.5			—
	Corporate securities	16,470.90			1,083.80			(202.3		)	17,352.40			(14.9		)
	Residential mortgage-backed securities	2,678.30			115.1			(37.4		)	2,756.00			(6.8		)
	Commercial mortgage-backed securities	1,436.00			94.7			(12.3		)	1,518.40			—
	Other debt obligations	579.4			39.3			(3.7		)	615			—
	Total fixed maturities	22,261.30			1,352.60			(276.2		)	23,337.70			(21.7		)
	Marketable equity securities, available-for-sale	129			5.9			(0.6		)	134.3			—
	Total	$	22,390.30		$	1,358.50		$	(276.8	)	$	23,472.00		$	(21.7	)
Summary Of Gross Unrealized Losses And Fair Values Of Investments Available-For-Sale	'
	The following tables summarize gross unrealized losses and fair values of the Company’s available-for-sale investments. The tables are aggregated by investment category and present separately those securities that have been in a continuous unrealized loss position for less than twelve months and for twelve months or more.
		Less Than 12 Months									12 Months or More
		Fair			Gross			# of			Fair			Gross			# of
		Value			Unrealized			Securities			Value			Unrealized			Securities
					Losses									Losses
	As of March 31, 2014
	Fixed maturities:
	U.S. government and agencies	$	104.5		$	(4.1	)	9			$	—		$	—		—
	State and political subdivisions	197.3			(4.1		)	34			1.7			(0.1		)	1
	Corporate securities	2,384.50			(71.8		)	199			370.1			(48.2		)	47
	Residential mortgage-backed securities	521.1			(21.2		)	78			47.4			(3.3		)	18
	Commercial mortgage-backed securities	169.2			(6.2		)	10			24.5			(1.7		)	9
	Other debt obligations	137.2			(1.7		)	14			0.6			(0.1		)	2
	Total fixed maturities	3,513.80			(109.1		)	344			444.3			(53.4		)	77
	Marketable equity securities, available-for-sale	17.8			(0.3		)	18			—			—			—
	Total	$	3,531.60		$	(109.4	)	$	362		$	444.3		$	(53.4	)	$	77
		Less Than 12 Months									12 Months or More
		Fair			Gross			# of			Fair			Gross			# of
		Value			Unrealized			Securities			Value			Unrealized			Securities
					Losses									Losses
	As of December 31, 2013
	Fixed maturities:
	U.S. government and agencies	$	102.7		$	(6.2	)	9			$	—		$	—		—
	State and political subdivisions	278.7			(13.9		)	44			5.4			(0.4		)	3
	Corporate securities	3,621.50			(150.7		)	258			263.5			(51.6		)	42
	Residential mortgage-backed securities	680			(33.0		)	95			52.4			(4.4		)	22
	Commercial mortgage-backed securities	261.9			(11.4		)	17			14.2			(0.9		)	9
	Other debt obligations	152			(3.6		)	15			0.6			(0.1		)	3
	Total fixed maturities	5,096.80			(218.8		)	438			336.1			(57.4		)	79
	Marketable equity securities, available-for-sale	39.7			(0.6		)	21			—			—			—
	Total	$	5,136.50		$	(219.4	)	$	459		$	336.1		$	(57.4	)	$	79
Summary Of Contractual Years To Maturity	'
	The following table summarizes the amortized cost and fair value of fixed maturities as of March 31, 2014, by contractual years to maturity. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalties.
		Amortized			Fair
		Cost			Value
	One year or less	$	733.8		$	738.2
	Over one year through five years	5,084.40			5,515.20
	Over five years through ten years	8,730.60			9,044.80
	Over ten years	3,789.50			4,245.80
	Residential mortgage-backed securities	2,682.70			2,789.10
	Commercial mortgage-backed securities	1,428.50			1,514.50
	Other asset-backed securities	446.7			481.4
	Total fixed maturities	$	22,896.20		$	24,329.00
Summary Of Net Investment Income	'
	The following table summarizes the Company’s net investment income:
		For the Three Months Ended
		March 31,
		2014			2013
	Fixed maturities	$	283		$	284.6
	Marketable equity securities, available-for-sale	1			0.6
	Marketable equity securities, trading	3			3.1
	Mortgage loans	50.1			44.9
	Policy loans	0.9			0.9
	Investments in limited partnerships	(6.7		)	(4.4		)
	Other	1.4			2
	Total investment income	332.7			331.7
	Investment expenses	(8.3		)	(8.0		)
	Net investment income	$	324.4		$	323.7
Summary Of Net Realized Gains (Losses)	'
	The following table summarizes the Company’s net realized gains (losses):
		For the Three Months Ended
		March 31,
		2014			2013
	Fixed maturities:
	Gross gains on sales	$	8.7		$	1.8
	Gross losses on sales	(1.8		)	(8.1		)
	Net impairment losses recognized in earnings	(1.1		)	(2.0		)
	Other (1)	(1.2		)	(0.7		)
	Total fixed maturities	4.6			(9.0		)
	Marketable equity securities, trading (2)	19.7			33
	Other (3)	(5.0		)	2.1
	Deferred policy acquisition costs and deferred sales inducement adjustment	1.4			0.4
	Net realized gains (losses)	$	20.7		$	26.5
	____________________
	-1	This includes net gains (losses) on calls and redemptions, and changes in the fair value of the Company’s convertible securities held as of period end totaling $2.4 and $0.9 for the three months ended March 31, 2014 and 2013, respectively.
	-2	This includes net gains (losses) on changes in the fair value of trading securities held as of period end totaling $13.8 and $27.2 for the three months ended March 31, 2014 and 2013, respectively.
	-3	This includes net gains (losses) on derivatives not designated for hedge accounting and other instruments.
Schedule Of Severity And Duration Of Gross Unrealized Losses On Underwater Available-For-Sale Securities	'
	The following table presents the severity and duration of the gross unrealized losses on the Company’s underwater available-for-sale fixed maturities, after the recognition of any credit-related OTTI:
		As of March 31, 2014						As of December 31, 2013
		Fair			Gross			Fair			Gross
		Value			Unrealized			Value			Unrealized
					Losses						Losses
	Fixed maturities
	Underwater by 20% or more:
	Less than 6 consecutive months	$	2.2		$	(0.9	)	$	33.3		$	(12.3	)
	6 consecutive months or more	32.4			(17.4		)	26.7			(18.4		)
	Total underwater by 20% or more	34.6			(18.3		)	60			(30.7		)
	All other underwater fixed maturities	3,923.50			(144.2		)	5,372.90			(245.5		)
	Total underwater fixed maturities	$	3,958.10		$	(162.5	)	$	5,432.90		$	(276.2	)
Schedule Of Changes In The Amount Of Credit-Related OTTI Recognized In Net Income	'
	Changes in the amount of credit-related OTTI recognized in net income where the portion related to other factors was recognized in other comprehensive income (loss) (OCI) were as follows:
		For the Three Months Ended
		March 31,
		2014			2013
	Balance, beginning of period	$	23.1		$	36.2
	Increases recognized in the current period:
	For which an OTTI was previously recognized	—			0.4
	Decreases attributable to:
	Securities sold or paid down during the period	(1.3		)	(2.6		)
	Balance, end of period	$	21.8		$	34

Mortgage_Loans_Tables

Mortgage Loans (Tables)	3 Months Ended
	Mar. 31, 2014
Mortgage Loans on Real Estate [Abstract]	'
Schedule Of Mortgage Loans By Risk Category	'
	The following table sets forth the Company’s mortgage loans by risk category:
		As of March 31, 2014					As of December 31, 2013
		Carrying			% of Total		Carrying			% of Total
		Value					Value
	Lower risk	$	2,193.50		60.8	%	$	2,195.10		61.9	%
	Medium risk	851.5			23.6		843.5			23.8
	Higher risk	562			15.6		506.3			14.3
	Credit quality indicator total	3,607.00			100	%	3,544.90			100	%
	Loans specifically evaluated for impairment (1)	2					2
	Other (2)	(5.8		)			(5.9		)
	Total	$	3,603.20				$	3,541.00
	________________
	-1	As of March 31, 2014 and December 31, 2013, reserve amounts of $0.2 and $0.2, respectively, were held for loans specifically evaluated for impairment.
	-2	Includes the allowance for loan losses and deferred fees and costs.
Schedule Of Allowance For Mortgage Loan Losses	'
	The following table summarizes the activity in the Company’s allowance for mortgage loan losses, which includes portfolio and specific reserves:
		For the Three Months Ended
		March 31,
		2014			2013
	Allowance at beginning of period	$	8.1		$	7.9
	Provision for specific loans	—			0.2
	Provision for loans not specifically identified	—			—
	Charge-offs	—			—
	Allowance at end of period	$	8.1		$	8.1

Derivative_Instruments_Tables

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule Of Position In Derivative Instruments	'
	The following table sets forth the fair value of the Company’s derivative instruments. In the consolidated balance sheets, derivative contracts in an asset position are included in other invested assets, derivative contracts in a liability position are included in other liabilities, and embedded derivative liabilities are included in funds held under deposit contracts.
		As of March 31, 2014									As of December 31, 2013
		Notional			Fair Value						Notional		Fair Value
		Amount			Assets			Liabilities			Amount		Assets		Liabilities
	Derivatives designated as hedges:
	Cash flow hedges:
	Interest rate swaps	$	97.1		$	4.8		$	—		$	97.1	$	4.6	$	—
	Foreign currency swaps	447.8			—			34			440.4		—		28.4
	Total derivatives designated as hedges	$	544.9		$	4.8		$	34		$	537.5	$	4.6	$	28.4
	Derivatives not designated as hedges:
	Equity index options	$	1,250.00		$	44.9		$	0.5		$	1,060.90	$	38.8	$	1.6
	Foreign currency forwards	11.7			—			—			49.3		0.3		0.4
	Embedded derivatives	—			—			121.3			—		—		92.1
	Other derivatives	117.1			0.5			—			66		0.3		—
	Total derivatives not designated as hedges	1,378.80			45.4			121.8			1,176.20		39.4		94.1
	Total derivatives	$	1,923.70		$	50.2		$	155.8		$	1,713.70	$	44	$	122.5
Schedule of Offsetting Assets	'
	The following tables present the potential effect of netting arrangements by counterparty on the Company’s consolidated balance sheets:
		As of March 31, 2014
					Gross Amount of Collateral (Received) Posted
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
	Assets:
	A	$	5.4		$	—		$	—		$	5.4
	B	13.5			—			—			13.5
	C	16.3			—			(15.7		)	0.6
	D	11.3			—			(9.5		)	1.8
	Other	3.7			—			(1.7		)	2
	Total derivative assets	$	50.2		$	—		$	(26.9	)	$	23.3
		As of December 31, 2013
					Gross Amount of Collateral (Received) Posted
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
	Assets:
	A	$	4.4		$	—		$	(0.2	)	$	4.2
	B	11			—			(3.0		)	8
	C	17.7			—			(17.4		)	0.3
	D	9.1			—			(6.9		)	2.2
	Other	1.8			—			—			1.8
	Total derivative assets	$	44		$	—		$	(27.5	)	$	16.5
Schedule of Offsetting Liabilities	'
		As of December 31, 2013
					Gross Amount of Collateral Received (Posted)
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
	Liabilities:
	A	$	5.3		$	—		$	—		$	5.3
	B	16.9			—			(0.2		)	16.7
	E	5.1			(2.8		)	—			2.3
	Other	3.1			—			—			3.1
	Total derivative liabilities (1)	$	30.4		$	(2.8	)	$	(0.2	)	$	27.4
	_______________________
	-1	Excludes $92.1 of embedded derivatives which have no counterparty.
		As of March 31, 2014
					Gross Amount of Collateral Received (Posted)
		Fair Value Presented in the			Financial			Cash Collateral			Net Amount
		Balance Sheets			Instruments
	Counterparty:
	Liabilities:
	A	$	6.5		$	(0.9	)	$	—		$	5.6
	B	20.3			(7.5		)	(0.6		)	12.2
	E	6.1			(4.1		)	—			2
	Other	1.6			—			—			1.6
	Total derivative liabilities (1)	$	34.5		$	(12.5	)	$	(0.6	)	$	21.4
	_______________________
	-1	Excludes $121.3 of embedded derivatives which have no counterparty.
Schedule Of Gains (Losses) On Cash Flow Hedges	'
	The following table presents the amount of gain (loss) recognized in OCI on derivatives that qualify as cash flow hedges:
		For the Three Months Ended
		March 31,
		2014			2013
	Interest rate swaps	$	0.8		$	(0.3	)
	Foreign currency swaps	(5.7		)	8.2
	Total	$	(4.9	)	$	7.9
Schedule Of Derivatives Not Designated as Hedges Gains (Losses)	'
	The following table shows the effect of derivatives not designated as hedges on the consolidated statements of income, which is recorded in net realized gains (losses):
		For the Three Months Ended
		March 31,
		2014			2013
	Equity indexed options	$	3.9		$	3.2
	Foreign currency forwards	—			1.6
	Embedded derivatives	(6.3		)	(2.0		)
	Other derivatives	0.1			(0.2		)
	Total	$	(2.3	)	$	2.6

Fair_Value_Of_Financial_Instru1

Fair Value Of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Assets And Liabilities Accounted For At Fair Value	'
	The following tables present the fair value of the Company’s financial instruments classified by the valuation hierarchy described above. The financial instruments are separated between those measured at fair value on a recurring basis and those not carried at fair value, but for which disclosure of fair value is required.
		As of March 31, 2014
		Carrying				Fair Value			Level 1				Level 2				Level 3
		Amount
	Measured at fair value on a recurring basis:
	Financial assets:
	Fixed maturities, available-for-sale:
	U.S. government and agencies	$	812.9			$	812.9		$	—			$	812.9			$	—
	State and political subdivisions	751.2				751.2			—				751.2				—
	Corporate securities	17,853.70				17,853.70			—				17,761.60				92.1
	Residential mortgage-backed securities	2,789.10				2,789.10			—				2,788.90				0.2
	Commercial mortgage-backed securities	1,514.50				1,514.50			—				1,509.00				5.5
	Other debt obligations	607.6				607.6			—				544.7				62.9
	Total fixed maturities, available-for-sale	24,329.00				24,329.00			—				24,168.30				160.7
	Marketable equity securities, available-for-sale	126.8				126.8			68.2				58.6				—
	Marketable equity securities, trading	460.3				460.3			460				—				0.3
	Investments in limited partnerships, private equity funds	41.5				41.5			—				—				41.5
	Other invested assets:
	Equity indexed options	44.9				44.9			—				42.4				2.5
	Other	9.1				9.1			0.6				5.2				3.3
	Total other invested assets	54				54			0.6				47.6				5.8
	Total investments carried at fair value	25,011.60				25,011.60			528.8				24,274.50				208.3
	Separate account assets	973.8				973.8			973.8				—				—
	Total assets at fair value	$	25,985.40			$	25,985.40		$	1,502.60			$	24,274.50			$	208.3
	Financial liabilities:
	Embedded derivatives	$	121.3			$	121.3		$	—			$	—			$	121.3
	Foreign currency swaps	34				34			—				34				—
	Total liabilities at fair value	$	155.3			$	155.3		$	—			$	34			$	121.3
	Subject to fair value disclosure requirements:
	Financial assets:
	Mortgage loans	$	3,603.20			$	3,785.70		$	—			$	—			$	3,785.70
	Investments in limited partnerships, tax credit investments	257.8				224.7			—				224.7				—
	Cash and cash equivalents	108.5				108.5			108.5				—				—
	Financial liabilities:
	Funds held under deposit contracts (1):
	Deferred annuities	$	12,420.70			$	12,332.00		$	—			$	—			$	12,332.00
	Income annuities	6,536.20				7,924.60			—				—				7,924.60
	Notes payable:
	Capital Efficient Notes (CENts)	149.9				157.5			—				157.5				—
	Senior notes	299.7				319.1			—				319.1				—
	_______________________
	-1	The carrying value of this balance excludes $6,183.6 of liabilities related to insurance contracts and embedded derivatives.
		As of December 31, 2013
		Carrying				Fair Value			Level 1				Level 2				Level 3
		Amount
	Measured at fair value on a recurring basis:
	Financial assets:
	Fixed maturities, available-for-sale:
	U.S. government and agencies	$	344.4			$	344.4		$	—			$	327			$	17.4
	State and political subdivisions	751.5				751.5			—				751.5				—
	Corporate securities	17,352.40				17,352.40			—				17,324.40				28
	Residential mortgage-backed securities	2,756.00				2,756.00			—				2,755.80				0.2
	Commercial mortgage-backed securities	1,518.40				1,518.40			—				1,512.60				5.8
	Other debt obligations	615				615			—				486.2				128.8
	Total fixed maturities, available-for-sale	23,337.70				23,337.70			—				23,157.50				180.2
	Marketable equity securities, available-for-sale	134.3				134.3			77.4				56.9				—
	Marketable equity securities, trading	474.4				474.4			474.1				—				0.3
	Investments in limited partnerships, private equity funds	31.2				31.2			—				—				31.2
	Other invested assets	47.8				47.8			0.6				5.2				42
	Total investments carried at fair value	24,025.40				24,025.40			552.1				23,219.60				253.7
	Separate account assets	978.4				978.4			978.4				—				—
	Total assets at fair value	$	25,003.80			$	25,003.80		$	1,530.50			$	23,219.60			$	253.7
	Financial liabilities:
Embedded derivatives	92.1				92.1			—				—				92.1
Total liabilities at fair value	$	92.1			$	92.1		$	—			$	—			$	92.1
Subject to fair value disclosure requirements:
Financial assets:
Mortgage loans	$	3,541.00			$	3,664.60		$	—			$	—			$	3,664.60
Investments in limited partnerships, tax credit investments	265.1				237.9			—				237.9				—
Cash and cash equivalents	76				76			76				—				—
Financial liabilities:
Funds held under deposit contracts (1):
Deferred annuities	$	12,017.00			$	11,884.20		$	—			$	—			$	11,884.20
Income annuities	6,514.30				7,548.00			—				—				7,548.00
Notes payable:
Capital Efficient Notes (CENts)	149.9				156.2			—				156.2				—
Senior notes	299.6				319.3			—				319.3				—
_________________
-1	The carrying value of this balance excludes $6,111.6 of liabilities related to insurance contracts and embedded derivatives.
Schedule Of Additional Information About Composition Of Level 2 Corporate Securities	'
	The following table presents additional information about the composition of the Level 2 corporate securities:
		As of March 31, 2014									As of December 31, 2013
		Amount				% of Total		# of Securities			Amount				% of Total			# of Securities
	Significant security sectors:
	Industrial	$	3,329.10			18.7	%	220			$	3,237.30			18.7	%		223
	Consumer staples	2,733.40				15.4		157			2,681.60				15.5			159
	Consumer discretionary	2,223.40				12.5		189			2,184.70				12.6			184
	Utilities	1,949.80				11		148			1,897.90				11			146
	Financial	1,894.50				10.7		157			1,819.20				10.5			158
	Weighted-average coupon rate	5.51		%							5.6		%
	Weighted-average remaining years to contractual maturity	9.4									9.6
Schedule Of Additional Information About Composition Of Level 2 Non-Agency RMBS Securities	'
	The following table presents additional information about the composition of the Level 2 non-agency RMBS securities:
		As of March 31, 2014						As of December 31, 2013
		Fair Value				% of Total		Fair Value				% of Total
	Highest rating agency rating:
	AAA	$	52			17.7	%	$	42.5			14.3	%
	AA through BBB	79.1				26.9		88				29.5
	BB & below	163				55.4		167.8				56.2
	Total non-agency RMBS	$	294.1			100	%	$	298.3			100	%
	Non-agency RMBS with super senior subordination	$	184.2			62.6	%	$	178.3			59.8	%
Schedule Of Additional Information About Composition Of Level 2 CMBS Securities	'
	The following table presents additional information about the composition of the underlying collateral of Level 2 non-agency CMBS securities:
		As of March 31, 2014			As of December 31, 2013
		% of Total			% of Total
	Significant underlying collateral locations:
	New York	21.8	%		21.8	%
	California	11.6			11.7
	Florida	7.7			7.5
	Texas	7.1			7.3
	Significant underlying collateral property types:
	Office buildings	31.7	%		32.6	%
	Retail shopping centers	30.7			31.5
Schedule Of Additional Information About Level 3 Assets and Liabilities Measured At Fair Value On A Recurring Basis	'
	The following tables present additional information about financial instruments measured at fair value on a recurring basis and for which the Company has utilized significant unobservable inputs (Level 3) to determine fair value for the three months ended March 31, 2014:
																				Unrealized Gains (Losses) Included in:
		Balance as of January 1, 2014				Purchases			Sales				Transfers				Other(3)			Net			Other			Realized			Balance as of March 31, 2014
						and			and				In and/or							Income(4)			Comprehensive			Gains
						issues(1)			settlements(1)				(Out) of										Income (Loss)			(Losses)(4)
													Level 3(2)
	Financial Assets:
	Fixed maturities, available-for-sale:
	U.S. government and agencies	$	17.4			$	—		$	—			$	(17.4	)		$	—		$	—		$	—		$	—		$	—
	Corporate securities	28				24.5			—				39				(3.0		)	—			3.6			—			92.1
	Residential mortgage-backed securities	0.2				—			—				—				—			—			—			—			0.2
	Commercial mortgage-backed securities	5.8				—			—				—				(0.3		)	—			—			—			5.5
	Other debt obligations	128.8				—			—				(66.7		)		(0.4		)	—			1.2			—			62.9
	Total fixed maturities, available-for-sale	180.2				24.5			—				(45.1		)		(3.7		)	—			4.8			—			160.7
	Marketable equity securities, trading	0.3				—			—				—				—			—			—			—			0.3
	Investments in limited partnerships	31.2				10.3			—				—				—			—			—			—			41.5
	Other invested assets:
	Equity indexed options	38.8				0.9			—				(36.7		)		(0.4		)	(3.0		)	—			2.9			2.5
	Other	3.2				—			—				—				—			0.1			—			—			3.3
	Total other invested assets	42				0.9			—				(36.7		)		(0.4		)	(2.9		)	—			2.9			5.8
	Total Level 3 assets	$	253.7			$	35.7		$	—			$	(81.8	)		$	(4.1	)	$	(2.9	)	$	4.8		$	2.9		$	208.3
	Financial Liabilities:
	Embedded derivatives	$	92.1			$	23		$	(0.1	)		$	—			$	—		$	6.3		$	—		$	—		$	121.3
	Total Level 3 liabilities	$	92.1			$	23		$	(0.1	)		$	—			$	—		$	6.3		$	—		$	—		$	121.3
	_______________
	-1	Issues and settlements are related to the Company’s embedded derivative liabilities.
	-2	Transfers into and/or out of Level 3 are reported at the value as of the beginning of the period in which the transfer occurs. Gross transfers into Level 3 were $39.0 for the three months ended March 31, 2014. Gross transfers out of Level 3 were $120.8 for the three months ended March 31, 2014, of which $84.1 were related to fixed maturities for which observable inputs became available. Additionally, transfers out included a change in valuation methodology for equity indexed options during the first quarter of 2014 to a method that uses significant observable inputs. Such securities are now classified as Level 2.
	-3	Other is comprised of transactions such as pay downs, calls, amortization and redemptions.
	-4	Realized and unrealized gains and losses for investments in limited partnerships are included in net investment income. All other realized and unrealized gains and losses recognized in net income are included in net realized gains (losses). Amounts shown for financial liabilities are (gains) losses in net income.
	The following tables present additional information about financial instruments measured at fair value on a recurring basis and for which the Company has utilized significant unobservable inputs (Level 3) to determine fair value for the three months ended March 31, 2013:
																				Unrealized Gains (Losses) Included in:
		Balance as of January 1, 2013				Purchases			Sales				Transfers				Other(3)			Net			Other			Realized			Balance as of March 31, 2013
						and			and				In and/or							Income(4)			Comprehensive			Gains
						issues(1)			settlements(1)				(Out) of										Income			(Losses)(4)
													Level 3(2)
	Financial Assets:
	Fixed maturities, available-for-sale:
	Corporate securities	$	38.9			$	—		$	—			$	—			$	(13.0	)	$	—		$	0.2		$	(0.1	)	$	26
	Residential mortgage-backed securities	—				—			—				0.2				—			—			—			—			0.2
	Commercial mortgage-backed securities	18.8				—			—				—				(3.7		)	—			(0.3		)	—			14.8
	Other debt obligations	73				5.5			—				—				—			—			(1.0		)	—			77.5
	Total fixed maturities, available-for-sale	130.7				5.5			—				0.2				(16.7		)	—			(1.1		)	(0.1		)	118.5
	Marketable equity securities, available-for-sale	5				—			—				—				—			—			—			—			5
	Marketable equity securities, trading	0.2				—			—				—				—			—			—			—			0.2
	Investments in limited partnerships	28.6				0.6			—				—				(1.1		)	0.5			—			—			28.6
	Other invested assets	7.8				4.5			—				—				(1.0		)	3			—			0.3			14.6
	Total Level 3 assets	$	172.3			$	10.6		$	—			$	0.2			$	(18.8	)	$	3.5		$	(1.1	)	$	0.2		$	166.9
	Financial Liabilities:
	Embedded derivatives	14.1				5.9			(0.1		)		—				—			2			—			—			21.9
	Total Level 3 liabilities	$	14.1			$	5.9		$	(0.1	)		$	—			$	—		$	2		$	—		$	—		$	21.9
	_______________
	-1	Issues and settlements are related to the Company’s embedded derivative liabilities.
	-2	Transfers into and/or out of Level 3 are reported at the value as of the beginning of the period in which the transfer occurs. Gross transfers into Level 3 were $0.2 for the three months ended March 31, 2013. Gross transfers out of Level 3 were $0.0 for the three months ended March 31, 2013.
	-3	Other is comprised of transactions such as pay downs, calls, amortization and redemptions.
	-4	Realized and unrealized gains and losses for investments in limited partnerships are included in net investment income. All other realized and unrealized gains and losses recognized in net income are included in net realized gains (losses).

Deferred_Policy_Acquisition_Co1

Deferred Policy Acquisition Costs (DAC) and Deferred Sales Inducements (DSI) (Tables)	3 Months Ended
	Mar. 31, 2014
Deferred Policy Acquisition Cost Deferred Sales Inducement [Abstract]	'
Schedule Of Reconciliation For Deferred Policy Acquisition Costs	'
	The following table provides a reconciliation of the beginning and ending balance for DAC:
		For the Three Months Ended
		March 31,
		2014			2013
	Unamortized balance at beginning of period	$	419.9		$	367.9
	Deferral of acquisition costs	40.2			17.9
	Adjustments for realized (gains) losses	1.1			0.2
	Amortization — excluding unlocking	(15.5		)	(15.5		)
	Amortization — impact of assumption and experience unlocking	(4.4		)	(3.4		)
	Unamortized balance at end of period	441.3			367.1
	Accumulated effect of net unrealized gains	(121.2		)	(195.0		)
	Balance at end of period	$	320.1		$	172.1
Schedule Of Reconciliation For Deferred Sales Inducements	'
	The following table provides a reconciliation of the beginning and ending balance for DSI, which is included in receivables and other assets in the consolidated balance sheets. DSI amortization is included in interest credited in the consolidated statements of income.
		For the Three Months Ended
		March 31,
		2014			2013
	Unamortized balance at beginning of period	$	154.8		$	153.4
	Capitalizations	9.6			13.3
	Adjustments for realized (gains) losses	0.3			0.2
	Amortization — excluding unlocking	(10.6		)	(10.3		)
	Amortization — impact of assumption and experience unlocking	(3.8		)	(2.5		)
	Unamortized balance at end of period	150.3			154.1
	Accumulated effect of net unrealized gains	(86.5		)	(122.5		)
	Balance at end of period	$	63.8		$	31.6

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Schedule Of Components and Reclassifications Out Of AOCI	'
	The following tables summarize the components of AOCI and the adjustments to OCI for amounts reclassified from AOCI into net income for the three months ended March 31, 2014:
		Net unrealized			OTTI on fixed			Adjustment			Net gains			Accumulated
		gains (losses) on			maturities			for DAC			(losses) on			other
		available-for-			not related to			and DSI (3)			cash flow			comprehensive
		sale securities			credit losses  (2)						hedges			income
	Balance as of January 1, 2014	$	737.8		$	(14.2	)	$	(113.1	)	$	(16.9	)	$	593.6
	Other comprehensive income (loss) before reclassifications, net of taxes (1)	237.1			—			(20.9		)	(3.2		)	213
	Reclassifications recorded in:
	Net investment income:
	Interest rate swaps	—			—			—			(0.5		)	(0.5		)
	Foreign currency swaps	—			—			—			0.2			0.2
	Net realized (gains) losses	(3.0		)	1.2			(1.4		)	—			(3.2		)
	Total provision (benefit) for income taxes	1			(0.4		)	0.5			0.1			1.2
	Total reclassifications from AOCI, net of taxes	(2.0		)	0.8			(0.9		)	(0.2		)	(2.3		)
	Other comprehensive income (loss) after reclassifications	235.1			0.8			(21.8		)	(3.4		)	210.7
	Balance as of March 31, 2014	$	972.9		$	(13.4	)	$	(134.9	)	$	(20.3	)	$	804.3
	___________________
	-1	Other comprehensive income (loss) before reclassifications is net of taxes of $127.6, $0.0, $(11.3), $(1.7) and $114.6, respectively, for the three months ended March 31, 2014.
	-2	Reclassification adjustments of OTTI on fixed maturities not related to credit losses are included in changes in unrealized gains and losses on available-for-sale securities within the consolidated statements of comprehensive income (loss).
	-3	See Note 8 for the adjustment for the accumulated effect of net unrealized gains separately presented for DAC and DSI.
	The following tables summarize the components of AOCI and the adjustments to OCI for amounts reclassified from AOCI into net income for the three months ended March 31, 2013:
		Net unrealized			OTTI on fixed			Adjustment			Net gains			Accumulated
		gains (losses) on			maturities not			for DAC			(losses) on			other
		available-for-			related to			and			cash flow			comprehensive
		sale securities			credit losses  (2)			DSI (3)			hedges			income
	Balance as of January 1, 2013	$	1,610.20		$	(19.6	)	$	(221.4	)	$	2		$	1,371.20
	Other comprehensive income (loss) before reclassifications, net of taxes (1)	(106.3		)	(0.4		)	15.3			5.1			(86.3		)
	Reclassifications recorded in:
	Net investment income:
	Interest rate swaps	—			—			—			(0.5		)	(0.5		)
	Foreign currency swaps	—			—			—			(0.5		)	(0.5		)
	Net realized (gains) losses	10.3			3.7			(0.4		)	—			13.6
	Total provision (benefit) for income taxes	(3.6		)	(1.3		)	0.1			0.4			(4.4		)
	Total reclassifications from AOCI, net of taxes	6.7			2.4			(0.3		)	(0.6		)	8.2
	Other comprehensive income (loss) after reclassifications	(99.6		)	2			15			4.5			(78.1		)
	Balance as of March 31, 2013	$	1,510.60		$	(17.6	)	$	(206.4	)	$	6.5		$	1,293.10
	___________________
	-1	Other comprehensive income (loss) before reclassifications is net of taxes of $(57.2), $(0.2), $8.2, $2.8 and $(46.4), respectively, for the three months ended March 31, 2013.
	-2	Reclassification adjustments of OTTI on fixed maturities not related to credit losses are included in changes in unrealized gains and losses on available-for-sale securities within the consolidated statements of comprehensive income (loss).
	-3	See Note 8 for the adjustment for the accumulated effect of net unrealized gains separately presented for DAC and DSI.
Schedule Of Reconciliation Of Changes In Outstanding Shares Of Common Stock	'
	The following table provides a reconciliation of changes in outstanding shares of common stock:
		Common Shares
	Balance as of January 1, 2013	119,087,677
	Common stock issued (1)	5,300,569
	Restricted stock issued, net	254,579
	Employee stock purchase plan shares issued	133,122
	Common stock repurchased (2)	(7,045,190	)
	Balance as of December 31, 2013	117,730,757
	Balance as of January 1, 2014	117,730,757
	Common stock issued	—
	Restricted stock issued, net	200,723
	Employee stock purchase plan shares issued	42,067
	Common stock repurchased (2)	(1,354,329	)
	Balance as of March 31, 2014	116,619,218
	_____________________
	-1	Includes 5,297,758 shares of common stock issued from the settlement of warrants.
	-2	Represents shares of common stock repurchased pursuant to the Company’s stock repurchase program that began in 2013, which are held in treasury, as well as shares repurchased and subsequently retired to satisfy employee income tax withholding pursuant to the Company’s Equity Plan.

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Summary Of Restricted Stock Activity	'
	The following table summarizes the Company’s restricted stock activity for the three months ended March 31, 2014:
		Number of		Weighted-
		Shares		Average Fair
				Value
	Outstanding as of January 1, 2014	650,197		$	11.53
	Shares granted	206,940		20.27
	Shares vested	(7,095	)	10.79
	Shares forfeited	(6,217	)	11.96
	Outstanding as of March 31, 2014	843,825		$	13.68

Segment_Information_Tables

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Schedule Of Financial Information By Segment And Reconciliation Of Segment Pre-Tax Adjusted Operating Income (Loss)	'
	The following tables present selected financial information by segment and reconcile segment pre-tax adjusted operating income (loss) to amounts reported in the consolidated statements of income.
		For the Three Months Ended March 31, 2014
		Benefits		Deferred			Income		Individual			Other			Total
				Annuities			Annuities		Life
	Operating revenues:
	Premiums	$	145	$	—		$	—	$	8.8		$	—		$	153.8
	Net investment income	5		150.1			97		70.9			1.4			324.4
	Policy fees, contract charges, and other	3.9		5.9			0.2		36.2			0.4			46.6
	Certain realized gains (losses)	—		(0.2		)	—		—			—			(0.2		)
	Total operating revenues	153.9		155.8			97.2		115.9			1.8			524.6
	Benefits and expenses:
	Policyholder benefits and claims	82.8		0.1			—		18.3			—			101.2
	Interest credited	—		87.5			82		65.2			(0.5		)	234.2
	Other underwriting and operating expenses	43.2		21.1			4.8		18.2			0.6			87.9
	Interest expense	—		—			—		—			8.2			8.2
	Amortization of DAC	0.1		16.9			1		1.9			—			19.9
	Total benefits and expenses	126.1		125.6			87.8		103.6			8.3			451.4
	Segment pre-tax adjusted operating income (loss)	$	27.8	$	30.2		$	9.4	$	12.3		$	(6.5	)	$	73.2
	Operating revenues	$	153.9	$	155.8		$	97.2	$	115.9		$	1.8		$	524.6
	Add: Excluded realized gains (losses)	—		(4.9		)	24.2		2.5			(0.9		)	20.9
	Total revenues	153.9		150.9			121.4		118.4			0.9			545.5
	Total benefits and expenses	126.1		125.6			87.8		103.6			8.3			451.4
	Income from operations before income taxes	$	27.8	$	25.3		$	33.6	$	14.8		$	(7.4	)	$	94.1
	As of March 31, 2014:
	Total assets	$	169.4	$	14,625.70		$	7,438.90	$	6,586.60		$	2,343.70		$	31,164.30
		For the Three Months Ended March 31, 2013
		Benefits		Deferred			Income		Individual			Other			Total
				Annuities			Annuities		Life
	Operating revenues:
	Premiums	$	148	$	—		$	—	$	9		$	—		$	157
	Net investment income	5.1		143.2			101.7		69.2			4.5			323.7
	Policy fees, contract charges, and other	3.5		5.8			1.9		33.1			5.6			49.9
	Certain realized gains (losses)	—		0.9			—		—			—			0.9
	Total operating revenues	156.6		149.9			103.6		111.3			10.1			531.5
	Benefits and expenses:
	Policyholder benefits and claims	101.4		—			—		18.1			—			119.5
	Interest credited	—		82.9			88.5		64.2			(0.3		)	235.3
	Other underwriting and operating expenses	41.7		21.7			5.4		16			7			91.8
	Interest expense	—		—			—		—			8.2			8.2
	Amortization of DAC	—		16.2			0.9		1.8			—			18.9
	Total benefits and expenses	143.1		120.8			94.8		100.1			14.9			473.7
	Segment pre-tax adjusted operating income (loss)	$	13.5	$	29.1		$	8.8	$	11.2		$	(4.8	)	$	57.8
	Operating revenues	$	156.6	$	149.9		$	103.6	$	111.3		$	10.1		$	531.5
	Add: Excluded realized gains (losses)	—		2.5			17.7		(0.2		)	5.6			25.6
	Total revenues	156.6		152.4			121.3		111.1			15.7			557.1
	Total benefits and expenses	143.1		120.8			94.8		100.1			14.9			473.7
	Income (loss) from operations before income taxes	$	13.5	$	31.6		$	26.5	$	11		$	0.8		$	83.4
	As of March 31, 2013:
	Total assets	$	151.5	$	12,739.20		$	7,607.50	$	6,597.80		$	2,491.80		$	29,587.80

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended		12 Months Ended		6 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013		Jun. 20, 2013
					Warrant Settlement [Member]
Common stock issued	0	'	5,300,569	[1]	5,297,758
Potential common shares reflected in weighted average common shares outstanding calculation	'	18,975,744	'		'
Antidilutive securities excluded from computation of earnings per share	2,650,000	2,650,000	'		'
Numerator:	'	'	'		'
Net income	$79.30	$66	'		'
Denominator:	'	'	'		'
Weighted-average common shares outstanding-basic (shares)	117,460,386	138,093,261	'		'
Add: dilutive effect of certain equity instruments (shares)	5,252	4,709	'		'
Weighted average common shares outstanding-diluted (shares)	117,465,638	138,097,970	'		'
Net income per common share:	'	'	'		'
Basic (USD per share)	$0.68	$0.48	'		'
Diluted (USD per share)	$0.68	$0.48	'		'
[1]	Includes 5,297,758 shares of common stock issued from the settlement of warrants.

Investments_Narrative_Details

Investments (Narrative) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Investment [Line Items]	'	'
Total fixed maturities	$24,329	$23,337.70
Fixed maturities, at amortized cost	22,896.20	22,261.30
Underwater threshold percentage used to determine significant risk of impairment	20.00%	'
Fair Value	24,455.80	23,472
External Credit Rating, Non Investment Grade [Member]	'	'
Investment [Line Items]	'	'
Total fixed maturities	1,217.60	1,267.50
Fixed maturities, at amortized cost	1,171.30	1,229.70
Percentage of below-investment grade fixed maturities at fair value	5.00%	5.50%
Total Underwater By 20% Or More [Member] | Marketable Equity Securities, Available-For-Sale [Member]	'	'
Investment [Line Items]	'	'
Fair Value	$0	$0

Investments_Summary_Of_Availab

Investments (Summary Of Available-For-Sale Fixed Maturities And Marketable Equity Securities) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Investment [Line Items]	'	'
Cost or Amortized Cost	$23,015.60	$22,390.30
Gross Unrealized Gains	1,603	1,358.50
Gross Unrealized Losses	-162.8	-276.8
Fair Value	24,455.80	23,472
OTTI in AOCI	-20.5	-21.7
U.S. Government And Agencies [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	810.9	348.5
Gross Unrealized Gains	6.1	2.1
Gross Unrealized Losses	-4.1	-6.2
Fair Value	812.9	344.4
OTTI in AOCI	0	0
State And Political Subdivisions [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	730.9	748.2
Gross Unrealized Gains	24.5	17.6
Gross Unrealized Losses	-4.2	-14.3
Fair Value	751.2	751.5
OTTI in AOCI	0	0
Corporate Securities [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	16,676	16,470.90
Gross Unrealized Gains	1,297.70	1,083.80
Gross Unrealized Losses	-120	-202.3
Fair Value	17,853.70	17,352.40
OTTI in AOCI	-14	-14.9
Residential Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	2,682.70	2,678.30
Gross Unrealized Gains	130.9	115.1
Gross Unrealized Losses	-24.5	-37.4
Fair Value	2,789.10	2,756
OTTI in AOCI	-6.5	-6.8
Commercial Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	1,428.50	1,436
Gross Unrealized Gains	93.9	94.7
Gross Unrealized Losses	-7.9	-12.3
Fair Value	1,514.50	1,518.40
OTTI in AOCI	0	0
Other Debt Obligations [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	567.2	579.4
Gross Unrealized Gains	42.2	39.3
Gross Unrealized Losses	-1.8	-3.7
Fair Value	607.6	615
OTTI in AOCI	0	0
Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	22,896.20	22,261.30
Gross Unrealized Gains	1,595.30	1,352.60
Gross Unrealized Losses	-162.5	-276.2
Fair Value	24,329	23,337.70
OTTI in AOCI	-20.5	-21.7
Marketable Equity Securities, Available-For-Sale [Member]	'	'
Investment [Line Items]	'	'
Cost or Amortized Cost	119.4	129
Gross Unrealized Gains	7.7	5.9
Gross Unrealized Losses	-0.3	-0.6
Fair Value	126.8	134.3
OTTI in AOCI	$0	$0

Investments_Summary_Of_Gross_U

Investments (Summary Of Gross Unrealized Losses And Fair Values Of Investments Available-For-Sale) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
	securities	securities
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	$3,531.60	$5,136.50
Less than 12 Months, Gross Unrealized Losses	-109.4	-219.4
Less Than 12 Months, Number Of Securities	362	459
12 Months Or More, Fair Value	444.3	336.1
12 Months or More, Gross Unrealized Losses	-53.4	-57.4
12 Months Or More, Number Of Securities	77	79
U.S. Government And Agencies [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	104.5	102.7
Less than 12 Months, Gross Unrealized Losses	-4.1	-6.2
Less Than 12 Months, Number Of Securities	9	9
12 Months Or More, Fair Value	0	0
12 Months or More, Gross Unrealized Losses	0	0
12 Months Or More, Number Of Securities	0	0
State And Political Subdivisions [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	197.3	278.7
Less than 12 Months, Gross Unrealized Losses	-4.1	-13.9
Less Than 12 Months, Number Of Securities	34	44
12 Months Or More, Fair Value	1.7	5.4
12 Months or More, Gross Unrealized Losses	-0.1	-0.4
12 Months Or More, Number Of Securities	1	3
Corporate Securities [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	2,384.50	3,621.50
Less than 12 Months, Gross Unrealized Losses	-71.8	-150.7
Less Than 12 Months, Number Of Securities	199	258
12 Months Or More, Fair Value	370.1	263.5
12 Months or More, Gross Unrealized Losses	-48.2	-51.6
12 Months Or More, Number Of Securities	47	42
Residential Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	521.1	680
Less than 12 Months, Gross Unrealized Losses	-21.2	-33
Less Than 12 Months, Number Of Securities	78	95
12 Months Or More, Fair Value	47.4	52.4
12 Months or More, Gross Unrealized Losses	-3.3	-4.4
12 Months Or More, Number Of Securities	18	22
Commercial Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	169.2	261.9
Less than 12 Months, Gross Unrealized Losses	-6.2	-11.4
Less Than 12 Months, Number Of Securities	10	17
12 Months Or More, Fair Value	24.5	14.2
12 Months or More, Gross Unrealized Losses	-1.7	-0.9
12 Months Or More, Number Of Securities	9	9
Other Debt Obligations [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	137.2	152
Less than 12 Months, Gross Unrealized Losses	-1.7	-3.6
Less Than 12 Months, Number Of Securities	14	15
12 Months Or More, Fair Value	0.6	0.6
12 Months or More, Gross Unrealized Losses	-0.1	-0.1
12 Months Or More, Number Of Securities	2	3
Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	3,513.80	5,096.80
Less than 12 Months, Gross Unrealized Losses	-109.1	-218.8
Less Than 12 Months, Number Of Securities	344	438
12 Months Or More, Fair Value	444.3	336.1
12 Months or More, Gross Unrealized Losses	-53.4	-57.4
12 Months Or More, Number Of Securities	77	79
Marketable Equity Securities, Available-For-Sale [Member]	'	'
Investment [Line Items]	'	'
Less than 12 Months, Fair Value	17.8	39.7
Less than 12 Months, Gross Unrealized Losses	-0.3	-0.6
Less Than 12 Months, Number Of Securities	18	21
12 Months Or More, Fair Value	0	0
12 Months or More, Gross Unrealized Losses	$0	$0
12 Months Or More, Number Of Securities	0	0

Investments_Summary_Of_Contrac

Investments (Summary Of Contractual Years To Maturity) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Amortized Cost	'	'
One year or less	$733.80	'
Over one year through five years	5,084.40	'
Over five years through ten years	8,730.60	'
Over ten years	3,789.50	'
Cost or Amortized Cost	23,015.60	22,390.30
Other asset-backed securities	446.7	'
Total fixed maturities	22,896.20	22,261.30
Fair Value	'	'
One year or less	738.2	'
Over one year through five years	5,515.20	'
Over five years through ten years	9,044.80	'
Over ten years	4,245.80	'
Fair Value	24,455.80	23,472
Other asset-backed securities	481.4	'
Total fixed maturities	24,329	23,337.70
Residential Mortgage Backed Securities [Member]	'	'
Amortized Cost	'	'
Cost or Amortized Cost	2,682.70	2,678.30
Fair Value	'	'
Fair Value	2,789.10	2,756
Commercial Mortgage Backed Securities [Member]	'	'
Amortized Cost	'	'
Cost or Amortized Cost	1,428.50	1,436
Fair Value	'	'
Fair Value	$1,514.50	$1,518.40

Investments_Summary_Of_Net_Inv

Investments (Summary Of Net Investment Income) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Investment [Line Items]	'	'
Total investment income	$332.70	$331.70
Investment expenses	-8.3	-8
Net investment income	324.4	323.7
Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Total investment income	283	284.6
Marketable Equity Securities, Available-For-Sale [Member]	'	'
Investment [Line Items]	'	'
Total investment income	1	0.6
Mortgage Loans [Member]	'	'
Investment [Line Items]	'	'
Total investment income	50.1	44.9
Policy Loans [Member]	'	'
Investment [Line Items]	'	'
Total investment income	0.9	0.9
Other Investments [Member]	'	'
Investment [Line Items]	'	'
Total investment income	1.4	2
Marketable Equity Securities, Trading [Member]	'	'
Investment [Line Items]	'	'
Total investment income	3	3.1
Investments In Limited Partnerships [Member]	'	'
Investment [Line Items]	'	'
Total investment income	($6.70)	($4.40)

Investments_Summary_Of_Net_Rea

Investments (Summary Of Net Realized Gains (Losses)) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Investment [Line Items]	'		'
Net realized gains (losses)	$20.70		$26.50
Other (3)	-5	[1]	2.1	[1]
Deferred policy acquisition costs and deferred sales inducement adjustment	1.4		0.4
Net realized gains (losses) on convertible securities	2.4		0.9
Fixed Maturities [Member]	'		'
Investment [Line Items]	'		'
Gross gains on sales	8.7		1.8
Gross losses on sales	-1.8		-8.1
Net impairment losses recognized in earnings	-1.1		-2
Other	-1.2	[2]	-0.7	[2]
Net realized gains (losses)	4.6		-9
Marketable Equity Securities, Trading [Member]	'		'
Investment [Line Items]	'		'
Net realized gains (losses)	19.7	[3]	33	[3]
Gain (loss) on changes in fair value of trading securities	$13.80		$27.20
[1]	This includes net gains (losses) on derivatives not designated for hedge accounting and other instruments.
[2]	This includes net gains (losses) on calls and redemptions, and changes in the fair value of the Company’s convertible securities held as of period end totaling $2.4 and $0.9 for the three months ended March 31, 2014 and 2013, respectively.
[3]	This includes net gains (losses) on changes in the fair value of trading securities held as of period end totaling $13.8 and $27.2 for the three months ended March 31, 2014 and 2013, respectively.

Investments_Schedule_Of_Severi

Investments (Schedule Of Severity And Duration Of The Gross Unrealized Losses On Securities Available-For-Sale) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Investment [Line Items]	'	'
Fair Value	$24,455.80	$23,472
Gross Unrealized Losses	-162.8	-276.8
Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Fair Value	24,329	23,337.70
Gross Unrealized Losses	-162.5	-276.2
Underwater By 20% Or More, Less Than 6 Consecutive Months [Member] | Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Fair Value	2.2	33.3
Gross Unrealized Losses	-0.9	-12.3
Underwater By 20% Or More, 6 Consecutive Months Or More [Member] | Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Fair Value	32.4	26.7
Gross Unrealized Losses	-17.4	-18.4
Total Underwater By 20% Or More [Member] | Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Fair Value	34.6	60
Gross Unrealized Losses	-18.3	-30.7
All Other Underwater Fixed Maturities [Member] | Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Fair Value	3,923.50	5,372.90
Gross Unrealized Losses	-144.2	-245.5
Total Underwater Fixed Maturities [Member] | Fixed Maturities [Member]	'	'
Investment [Line Items]	'	'
Fair Value	3,958.10	5,432.90
Gross Unrealized Losses	($162.50)	($276.20)

Investments_Schedule_Of_Change

Investments (Schedule Of Changes In The Amount Of Credit-Related OTTI Recognized In Net Income) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]	'	'
Balance, beginning of period	$23.10	$36.20
Increases recognized in the current period:	'	'
For which an OTTI was previously recognized	0	0.4
Decreases attributable to:	'	'
Securities sold or paid down during the period	-1.3	-2.6
Balance, end of period	$21.80	$34

Mortgage_Loans_Narrative_Detai

Mortgage Loans (Narrative) (Details)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
	loans	loans
Mortgage Loans on Real Estate [Line Items]	'	'
Days to consider loans as nonperforming	'90 days	'
Number of nonperforming loans	0	0
CALIFORNIA	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage of mortgage loan portfolio	29.50%	'
TEXAS	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage of mortgage loan portfolio	11.30%	'
WASHINGTON	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Percentage of mortgage loan portfolio	8.80%	'
Risk Level Low [Member] | Less Than [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Loan to value ratio	65.00%	'
Risk Level Low [Member] | Greater Than [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt-service coverage ratio	150.00%	'
Risk Level Medium [Member] | Less Than [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Loan to value ratio	65.00%	'
Debt-service coverage ratio	150.00%	'
Risk Level Medium [Member] | Greater Than [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt-service coverage ratio	150.00%	'
Risk Level Medium [Member] | Minimum [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Loan to value ratio	65.00%	'
Risk Level Medium [Member] | Maximum [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Loan to value ratio	80.00%	'
Risk Level High [Member] | Less Than [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Debt-service coverage ratio	150.00%	'
Risk Level High [Member] | Greater Than [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Loan to value ratio	80.00%	'
Risk Level High [Member] | Minimum [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Loan to value ratio	65.00%	'
Risk Level High [Member] | Maximum [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Loan to value ratio	80.00%	'

Mortgage_Loans_Mortgage_Loans_

Mortgage Loans (Mortgage Loans By Risk Category) (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Mortgage Loans on Real Estate [Line Items]	'		'
Other, Carrying Value	($5.80)	[1]	($5.90)	[1]
Total, Carrying Value	3,603.20		3,541
Reserve on specifically evaluated mortgage loans	0.2		0.2
Risk Level Low [Member]	'		'
Mortgage Loans on Real Estate [Line Items]	'		'
Carrying Value	2,193.50		2,195.10
% of Total	60.80%		61.90%
Risk Level Medium [Member]	'		'
Mortgage Loans on Real Estate [Line Items]	'		'
Carrying Value	851.5		843.5
% of Total	23.60%		23.80%
Risk Level High [Member]	'		'
Mortgage Loans on Real Estate [Line Items]	'		'
Carrying Value	562		506.3
% of Total	15.60%		14.30%
Credit Quality Indicator Total [Member]	'		'
Mortgage Loans on Real Estate [Line Items]	'		'
Carrying Value	3,607		3,544.90
% of Total	100.00%		100.00%
Loans Evaluated For Impairment [Member]	'		'
Mortgage Loans on Real Estate [Line Items]	'		'
Carrying Value	$2	[2]	$2	[2]
[1]	Includes the allowance for loan losses and deferred fees and costs.
[2]	As of March 31, 2014 and December 31, 2013, reserve amounts of $0.2 and $0.2, respectively, were held for loans specifically evaluated for impairment.

Mortgage_Loans_Allowance_For_M

Mortgage Loans (Allowance For Mortgage Loan Losses) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Allowance for Mortgage Loan Losses [Roll Forward]	'	'
Allowance at beginning of period	$8.10	$7.90
Provision for specific loans	0	0.2
Provision for loans not specifically identified	0	0
Charge-offs	0	0
Allowance at end of period	$8.10	$8.10

Derivative_Instruments_Narrati

Derivative Instruments (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract]	'	'
Gain (loss) on cash flow hedge to be reclassified into income within 12 months	$1.40	'
Maximum length of time hedged in cash flow hedge	'10 years	'
Gain (loss) from ineffective portion of cash flow hedge	$0	$0

Derivative_Instruments_Schedul

Derivative Instruments (Schedule Of Position In Derivative Instruments) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	$1,923.70	$1,713.70
Fair Value, Assets	50.2	44
Fair Value, Liabilities	155.8	122.5
Total derivatives designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	544.9	537.5
Fair Value, Assets	4.8	4.6
Fair Value, Liabilities	34	28.4
Total derivatives not designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	1,378.80	1,176.20
Fair Value, Assets	45.4	39.4
Fair Value, Liabilities	121.8	94.1
Interest rate swaps [Member] | Total derivatives designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	97.1	97.1
Fair Value, Assets	4.8	4.6
Fair Value, Liabilities	0	0
Foreign currency swaps [Member] | Total derivatives designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	447.8	440.4
Fair Value, Assets	0	0
Fair Value, Liabilities	34	28.4
Equity index options [Member] | Total derivatives not designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	1,250	1,060.90
Fair Value, Assets	44.9	38.8
Fair Value, Liabilities	0.5	1.6
Foreign currency forwards [Member] | Total derivatives not designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	11.7	49.3
Fair Value, Assets	0	0.3
Fair Value, Liabilities	0	0.4
Embedded derivatives [Member] | Total derivatives not designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	0	0
Fair Value, Assets	0	0
Fair Value, Liabilities	121.3	92.1
Other derivatives [Member] | Total derivatives not designated as hedges [Member]	'	'
Derivative Fair Value Net [Abstract]	'	'
Notional Amount	117.1	66
Fair Value, Assets	0.5	0.3
Fair Value, Liabilities	$0	$0

Derivative_Instruments_Schedul1

Derivative Instruments (Schedule Of Offsetting Assets) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Offsetting Assets [Line Items]	'	'
Fair Value Presented in the Balance Sheets	$50.20	$44
Financial Instruments	0	0
Cash Collateral	-26.9	-27.5
Net Amount	23.3	16.5
Counterparty A [Member]	'	'
Offsetting Assets [Line Items]	'	'
Fair Value Presented in the Balance Sheets	5.4	4.4
Financial Instruments	0	0
Cash Collateral	0	-0.2
Net Amount	5.4	4.2
Counterparty B [Member]	'	'
Offsetting Assets [Line Items]	'	'
Fair Value Presented in the Balance Sheets	13.5	11
Financial Instruments	0	0
Cash Collateral	0	-3
Net Amount	13.5	8
Counterparty C [Member]	'	'
Offsetting Assets [Line Items]	'	'
Fair Value Presented in the Balance Sheets	16.3	17.7
Financial Instruments	0	0
Cash Collateral	-15.7	-17.4
Net Amount	0.6	0.3
Counterparty D [Member]	'	'
Offsetting Assets [Line Items]	'	'
Fair Value Presented in the Balance Sheets	11.3	9.1
Financial Instruments	0	0
Cash Collateral	-9.5	-6.9
Net Amount	1.8	2.2
Other Counterparty [Member]	'	'
Offsetting Assets [Line Items]	'	'
Fair Value Presented in the Balance Sheets	3.7	1.8
Financial Instruments	0	0
Cash Collateral	-1.7	0
Net Amount	$2	$1.80

Derivative_Instruments_Schedul2

Derivative Instruments (Schedule Of Offsetting Liabilities) (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Offsetting Liabilities [Line Items]	'		'
Fair Value Presented in the Balance Sheets	$34.50	[1]	$30.40	[2]
Financial Instruments	-12.5	[1]	-2.8	[2]
Cash Collateral	-0.6	[1]	-0.2	[2]
Net Amount	21.4	[1]	27.4	[2]
Fair Value, Liabilities	155.8		122.5
Counterparty A [Member]	'		'
Offsetting Liabilities [Line Items]	'		'
Fair Value Presented in the Balance Sheets	6.5		5.3
Financial Instruments	-0.9		0
Cash Collateral	0		0
Net Amount	5.6		5.3
Counterparty B [Member]	'		'
Offsetting Liabilities [Line Items]	'		'
Fair Value Presented in the Balance Sheets	20.3		16.9
Financial Instruments	-7.5		0
Cash Collateral	-0.6		-0.2
Net Amount	12.2		16.7
Counterparty E [Member]	'		'
Offsetting Liabilities [Line Items]	'		'
Fair Value Presented in the Balance Sheets	6.1		5.1
Financial Instruments	-4.1		-2.8
Cash Collateral	0		0
Net Amount	2		2.3
Other Counterparty [Member]	'		'
Offsetting Liabilities [Line Items]	'		'
Fair Value Presented in the Balance Sheets	1.6		3.1
Financial Instruments	0		0
Cash Collateral	0		0
Net Amount	1.6		3.1
Not designated as hedging instrument [Member]	'		'
Offsetting Liabilities [Line Items]	'		'
Fair Value, Liabilities	121.8		94.1
Not designated as hedging instrument [Member] | Embedded derivatives [Member]	'		'
Offsetting Liabilities [Line Items]	'		'
Fair Value, Liabilities	$121.30		$92.10
[1]	Excludes $121.3 of embedded derivatives which have no counterparty.
[2]	Excludes $92.1 of embedded derivatives which have no counterparty.

Derivative_Instruments_Schedul3

Derivative Instruments (Schedule Of Gains Losses On Cash Flow Hedges) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Gain (loss) recognized in other comprehensive income, before taxes and reclassifications, on qualifying derivatives [Abstract]	'	'
Gain (Loss) Recognized in OCI	($4.90)	$7.90
Interest rate swaps [Member]	'	'
Gain (loss) recognized in other comprehensive income, before taxes and reclassifications, on qualifying derivatives [Abstract]	'	'
Gain (Loss) Recognized in OCI	0.8	-0.3
Foreign currency swaps [Member]	'	'
Gain (loss) recognized in other comprehensive income, before taxes and reclassifications, on qualifying derivatives [Abstract]	'	'
Gain (Loss) Recognized in OCI	($5.70)	$8.20

Derivative_Instruments_Schedul4

Derivative Instruments (Schedule Of Derivatives Not Designated as Hedges Gains Losses) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Gain (loss) recognized in income on derivatives not designated as hedges [Abstract]	'	'
Gain (Loss) Recognized in Income	($2.30)	$2.60
Equity index options [Member]	'	'
Gain (loss) recognized in income on derivatives not designated as hedges [Abstract]	'	'
Gain (Loss) Recognized in Income	3.9	3.2
Foreign currency forwards [Member]	'	'
Gain (loss) recognized in income on derivatives not designated as hedges [Abstract]	'	'
Gain (Loss) Recognized in Income	0	1.6
Embedded derivatives [Member]	'	'
Gain (loss) recognized in income on derivatives not designated as hedges [Abstract]	'	'
Gain (Loss) Recognized in Income	-6.3	-2
Other derivatives [Member]	'	'
Gain (loss) recognized in income on derivatives not designated as hedges [Abstract]	'	'
Gain (Loss) Recognized in Income	$0.10	($0.20)

Fair_Value_Of_Financial_Instru2

Fair Value Of Financial Instruments (Narrative) (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]	'	'
Percentage of fair value of fixed maturities determined by pricing services	96.70%	96.60%
Total fixed maturities	$24,329	$23,337.70
Cash equivalents	13.8	37.8
Maximum [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range of illiquidity adjustments	0.25%	'
Minimum [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range of illiquidity adjustments	0.00%	'
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	24,168.30	23,157.50
Level 2 [Member] | Corporate Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	17,761.60	17,324.40
Level 2 [Member] | Residential Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	2,788.90	2,755.80
Weighted-average coupon rate	4.33%	4.39%
Level 2 [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	1,509	1,512.60
Weighted-average coupon rate	4.78%	4.82%
Agency Securities [Member] | Level 2 [Member] | Residential Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Agency securities as a percentage of Level 2 RMBS	89.50%	89.20%
Non Agency Securities [Member] | Level 2 [Member] | Residential Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Weighted-average credit enhancement of securities, percentage	9.00%	8.80%
Non Agency Securities [Member] | Level 2 [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Weighted-average credit enhancement of securities, percentage	32.00%	31.40%
Non-agency securities as a percentage of Level 2 CMBS	84.30%	83.30%
Percentage of non-agency Level 2 CMBS in most senior tranche	98.80%	98.70%
Private Placement [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Private placements as a percentage of fixed maturities	2.80%	2.80%
Total fixed maturities	683.3	653.7
Private Placement [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Privately placed securities percentage, level 2	95.10%	97.20%
Total fixed maturities	649.8	635.6
Private Placement [Member] | Level 2 [Member] | Corporate Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Private placements as a percentage of Level 2 corporate securities	3.00%	3.00%
Residential Mortgage-Backed Securities [Member] | Non Agency Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	294.1	298.3
Fair value of non-agency Level 2 RMBS originated in 2004 and prior	100.8	110.3
Percent of non agency level 2 RMBS originated in 2004 and prior	34.30%	37.00%
Corporate Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Weighted-average coupon rate	5.51%	5.60%
Corporate Securities [Member] | Private Placement [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	$538.30	$523.50

Fair_Value_Of_Financial_Instru3

Fair Value Of Financial Instruments (Financial Assets and Liabilities Accounted At Fair Value On Recurring Basis) (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013		Mar. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	$24,329		$23,337.70		'	'
Marketable equity securities, available-for-sale	126.8		134.3		'	'
Marketable equity securities, trading	460.3		474.4		'	'
Investments in limited partnerships	299.3		296.3		'	'
Fair Value, Assets	50.2		44		'	'
Total other invested assets	59		54.1		'	'
Total investments carried at fair value	28,940		27,901.10		'	'
Separate account assets	973.8		978.4		'	'
Mortgage loans, net	3,603.20		3,541		'	'
Cash and cash equivalents	108.5		76		301.2	130.8
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	25,140.50		24,642.90		'	'
Notes payable	449.6		449.5		'	'
Liabilities related to insurance contracts and embedded derivatives excluded from fair value	6,183.60		6,111.60		'	'
Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	24,329		23,337.70		'	'
Marketable equity securities, available-for-sale	126.8		134.3		'	'
Marketable equity securities, trading	460.3		474.4		'	'
Separate account assets	973.8		978.4		'	'
Total assets at fair value	25,985.40		25,003.80		'	'
Mortgage loans, net	3,603.20		3,541		'	'
Cash and cash equivalents	108.5		76		'	'
Financial Liabilities [Abstract]	'		'		'	'
Embedded derivatives	121.3		92.1		'	'
Total liabilities at fair value	155.3		92.1		'	'
Carrying Amount [Member] | Foreign currency swaps [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Foreign currency swaps	34		'		'	'
Carrying Amount [Member] | Private Equity Funds [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	41.5		31.2		'	'
Carrying Amount [Member] | Tax Credit Investments [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	257.8		265.1		'	'
Carrying Amount [Member] | Equity index options [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Fair Value, Assets	44.9		'		'	'
Carrying Amount [Member] | Deferred Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	12,420.70	[1]	12,017	[2]	'	'
Carrying Amount [Member] | Income Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	6,536.20	[1]	6,514.30	[2]	'	'
Carrying Amount [Member] | Capital Efficient Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	149.9		149.9		'	'
Carrying Amount [Member] | Senior Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	299.7		299.6		'	'
Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	24,329		23,337.70		'	'
Marketable equity securities, available-for-sale	126.8		134.3		'	'
Marketable equity securities, trading	460.3		474.4		'	'
Separate account assets	973.8		978.4		'	'
Total assets at fair value	25,985.40		25,003.80		'	'
Mortgage loans, net	3,785.70		3,664.60		'	'
Cash and cash equivalents	108.5		76		'	'
Financial Liabilities [Abstract]	'		'		'	'
Embedded derivatives	121.3		92.1		'	'
Total liabilities at fair value	155.3		92.1		'	'
Fair Value [Member] | Foreign currency swaps [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Foreign currency swaps	34		'		'	'
Fair Value [Member] | Private Equity Funds [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	41.5		31.2		'	'
Fair Value [Member] | Tax Credit Investments [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	224.7		237.9		'	'
Fair Value [Member] | Equity index options [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Fair Value, Assets	44.9		'		'	'
Fair Value [Member] | Deferred Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	12,332	[1]	11,884.20	[2]	'	'
Fair Value [Member] | Income Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	7,924.60	[1]	7,548	[2]	'	'
Fair Value [Member] | Capital Efficient Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	157.5		156.2		'	'
Fair Value [Member] | Senior Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	319.1		319.3		'	'
Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
Marketable equity securities, available-for-sale	68.2		77.4		'	'
Marketable equity securities, trading	460		474.1		'	'
Separate account assets	973.8		978.4		'	'
Total assets at fair value	1,502.60		1,530.50		'	'
Mortgage loans, net	0		0		'	'
Cash and cash equivalents	108.5		76		'	'
Financial Liabilities [Abstract]	'		'		'	'
Embedded derivatives	0		0		'	'
Total liabilities at fair value	0		0		'	'
Level 1 [Member] | Foreign currency swaps [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Foreign currency swaps	0		'		'	'
Level 1 [Member] | Private Equity Funds [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	0		0		'	'
Level 1 [Member] | Tax Credit Investments [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	0		0		'	'
Level 1 [Member] | Equity index options [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Fair Value, Assets	0		'		'	'
Level 1 [Member] | Deferred Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	0	[1]	0	[2]	'	'
Level 1 [Member] | Income Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	0	[1]	0	[2]	'	'
Level 1 [Member] | Capital Efficient Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	0		0		'	'
Level 1 [Member] | Senior Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	0		0		'	'
Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	24,168.30		23,157.50		'	'
Marketable equity securities, available-for-sale	58.6		56.9		'	'
Marketable equity securities, trading	0		0		'	'
Separate account assets	0		0		'	'
Total assets at fair value	24,274.50		23,219.60		'	'
Mortgage loans, net	0		0		'	'
Cash and cash equivalents	0		0		'	'
Financial Liabilities [Abstract]	'		'		'	'
Embedded derivatives	0		0		'	'
Total liabilities at fair value	34		0		'	'
Level 2 [Member] | Foreign currency swaps [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Foreign currency swaps	34		'		'	'
Level 2 [Member] | Private Equity Funds [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	0		0		'	'
Level 2 [Member] | Tax Credit Investments [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	224.7		237.9		'	'
Level 2 [Member] | Equity index options [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Fair Value, Assets	42.4		'		'	'
Level 2 [Member] | Deferred Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	0	[1]	0	[2]	'	'
Level 2 [Member] | Income Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	0	[1]	0	[2]	'	'
Level 2 [Member] | Capital Efficient Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	157.5		156.2		'	'
Level 2 [Member] | Senior Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	319.1		319.3		'	'
Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	160.7		180.2		'	'
Marketable equity securities, available-for-sale	0		0		'	'
Marketable equity securities, trading	0.3		0.3		'	'
Separate account assets	0		0		'	'
Total assets at fair value	208.3		253.7		'	'
Mortgage loans, net	3,785.70		3,664.60		'	'
Cash and cash equivalents	0		0		'	'
Financial Liabilities [Abstract]	'		'		'	'
Embedded derivatives	121.3		92.1		'	'
Total liabilities at fair value	121.3		92.1		'	'
Level 3 [Member] | Foreign currency swaps [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Foreign currency swaps	0		'		'	'
Level 3 [Member] | Private Equity Funds [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	41.5		31.2		'	'
Level 3 [Member] | Tax Credit Investments [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Investments in limited partnerships	0		0		'	'
Level 3 [Member] | Equity index options [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Fair Value, Assets	2.5		'		'	'
Level 3 [Member] | Deferred Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	12,332	[1]	11,884.20	[2]	'	'
Level 3 [Member] | Income Annuities [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Funds held under deposit contracts	7,924.60	[1]	7,548	[2]	'	'
Level 3 [Member] | Capital Efficient Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	0		0		'	'
Level 3 [Member] | Senior Notes [Member]	'		'		'	'
Financial Liabilities [Abstract]	'		'		'	'
Notes payable	0		0		'	'
U.S. Government and Government Agencies and Authorities [Member] | Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	812.9		344.4		'	'
U.S. Government and Government Agencies and Authorities [Member] | Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	812.9		344.4		'	'
U.S. Government and Government Agencies and Authorities [Member] | Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
U.S. Government and Government Agencies and Authorities [Member] | Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	812.9		327		'	'
U.S. Government and Government Agencies and Authorities [Member] | Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		17.4		'	'
State And Political Subdivisions [Member] | Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	751.2		751.5		'	'
State And Political Subdivisions [Member] | Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	751.2		751.5		'	'
State And Political Subdivisions [Member] | Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
State And Political Subdivisions [Member] | Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	751.2		751.5		'	'
State And Political Subdivisions [Member] | Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
Corporate Securities [Member] | Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	17,853.70		17,352.40		'	'
Corporate Securities [Member] | Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	17,853.70		17,352.40		'	'
Corporate Securities [Member] | Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
Corporate Securities [Member] | Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	17,761.60		17,324.40		'	'
Corporate Securities [Member] | Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	92.1		28		'	'
Residential Mortgage-Backed Securities [Member] | Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	2,789.10		2,756		'	'
Residential Mortgage-Backed Securities [Member] | Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	2,789.10		2,756		'	'
Residential Mortgage-Backed Securities [Member] | Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
Residential Mortgage-Backed Securities [Member] | Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	2,788.90		2,755.80		'	'
Residential Mortgage-Backed Securities [Member] | Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0.2		0.2		'	'
Commercial Mortgage-Backed Securities [Member] | Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	1,514.50		1,518.40		'	'
Commercial Mortgage-Backed Securities [Member] | Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	1,514.50		1,518.40		'	'
Commercial Mortgage-Backed Securities [Member] | Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
Commercial Mortgage-Backed Securities [Member] | Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	1,509		1,512.60		'	'
Commercial Mortgage-Backed Securities [Member] | Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	5.5		5.8		'	'
Other Debt Obligations [Member] | Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	607.6		615		'	'
Other Debt Obligations [Member] | Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	607.6		615		'	'
Other Debt Obligations [Member] | Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	0		0		'	'
Other Debt Obligations [Member] | Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	544.7		486.2		'	'
Other Debt Obligations [Member] | Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Total fixed maturities	62.9		128.8		'	'
Portion at Fair Value Measurement [Member] | Carrying Amount [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Other	9.1		'		'	'
Total other invested assets	54		47.8		'	'
Total investments carried at fair value	25,011.60		24,025.40		'	'
Portion at Fair Value Measurement [Member] | Fair Value [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Other	9.1		'		'	'
Total other invested assets	54		47.8		'	'
Total investments carried at fair value	25,011.60		24,025.40		'	'
Portion at Fair Value Measurement [Member] | Level 1 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Other	0.6		'		'	'
Total other invested assets	0.6		0.6		'	'
Total investments carried at fair value	528.8		552.1		'	'
Portion at Fair Value Measurement [Member] | Level 2 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Other	5.2		'		'	'
Total other invested assets	47.6		5.2		'	'
Total investments carried at fair value	24,274.50		23,219.60		'	'
Portion at Fair Value Measurement [Member] | Level 3 [Member]	'		'		'	'
Financial Assets [Abstract]	'		'		'	'
Other	3.3		'		'	'
Total other invested assets	5.8		42		'	'
Total investments carried at fair value	$208.30		$253.70		'	'
[1]	The carrying value of this balance excludes $6,183.6 of liabilities related to insurance contracts and embedded derivatives.
[2]	The carrying value of this balance excludes $6,111.6 of liabilities related to insurance contracts and embedded derivatives.

Fair_Value_Of_Financial_Instru4

Fair Value Of Financial Instruments (Additional Information About Composition Of Level 2 Corporate Securities) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	24,329	23,337.70
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	24,168.30	23,157.50
Corporate Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Weighted-average coupon rate	5.51%	5.60%
Weighted-average remaining years to contractual maturity for Level 2 corporate securities	'9 years 4 months 24 days	'9 years 7 months 6 days
Consumer Staples Sector [Member] | Corporate Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	2,733.40	2,681.60
Corporate securities, level 2, % of Total	15.40%	15.50%
Corporate securities, level 2, number of securities	157	159
Consumer Discretionary Sector [Member] | Corporate Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	2,223.40	2,184.70
Corporate securities, level 2, % of Total	12.50%	12.60%
Corporate securities, level 2, number of securities	189	184
Industrial Sector [Member] | Corporate Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	3,329.10	3,237.30
Corporate securities, level 2, % of Total	18.70%	18.70%
Corporate securities, level 2, number of securities	220	223
Utilities Sector [Member] | Corporate Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	1,949.80	1,897.90
Corporate securities, level 2, % of Total	11.00%	11.00%
Corporate securities, level 2, number of securities	148	146
Financial Sector [Member] | Corporate Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	1,894.50	1,819.20
Corporate securities, level 2, % of Total	10.70%	10.50%
Corporate securities, level 2, number of securities	157	158

Fair_Value_Of_Financial_Instru5

Fair Value Of Financial Instruments (Additional Information About Composition Of Level 2 Non-Agency RMBS Securities ) (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]	'	'
Total fixed maturities	$24,329	$23,337.70
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	24,168.30	23,157.50
Non Agency Securities [Member] | Residential Mortgage-Backed Securities [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	294.1	298.3
% of Total	100.00%	100.00%
Non Agency Securities [Member] | Residential Mortgage-Backed Securities [Member] | Standard Poors A A A Rating [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	52	42.5
% of Total	17.70%	14.30%
Non Agency Securities [Member] | Residential Mortgage-Backed Securities [Member] | Standard Poors Aa Through Bbb Rating [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	79.1	88
% of Total	26.90%	29.50%
Non Agency Securities [Member] | Residential Mortgage-Backed Securities [Member] | Standard Poors Bb And Below Rating [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	163	167.8
% of Total	55.40%	56.20%
Non Agency Securities [Member] | Residential Mortgage-Backed Securities [Member] | Securities With Super Senior Subordination [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total fixed maturities	$184.20	$178.30
% of Total	62.60%	59.80%

Fair_Value_Of_Financial_Instru6

Fair Value Of Financial Instruments (Additional Information About Composition Of Level 2 CMBS Securities) (Details)	Mar. 31, 2014	Dec. 31, 2013
NEW YORK	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Percentage of non-agency Level 2 CMBS collateral	21.80%	21.80%
CALIFORNIA	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Percentage of non-agency Level 2 CMBS collateral	11.60%	11.70%
FLORIDA	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Percentage of non-agency Level 2 CMBS collateral	7.70%	7.50%
TEXAS	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Percentage of non-agency Level 2 CMBS collateral	7.10%	7.30%
Office Buildings [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Percentage of non-agency Level 2 CMBS collateral	31.70%	32.60%
Retail Shopping Centers [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Percentage of non-agency Level 2 CMBS collateral	30.70%	31.50%

Fair_Value_Of_Financial_Instru7

Fair Value Of Financial Instruments (Additional Information About Level 3 Assets and Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Financial Assets:	'		'
Beginning balance	$253.70		$172.30
Purchases and issues	35.7	[1]	10.6	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	-81.8	[2]	0.2	[3]
Other	-4.1	[4]	-18.8	[4]
Unrealized Gains (Losses) Included in, Net Income	-2.9	[5]	3.5	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	4.8		-1.1
Realized Gains (Losses)	2.9	[5]	0.2	[5]
Ending balance	208.3		166.9
Gross transfers into Level 3	39		0.2
Gross transfers out of Level 3	-120.8		0
Financial Liabilities:	'		'
Beginning balance	92.1		14.1
Purchases and issues	23	[1]	5.9	[1]
Sales and settlements	-0.1	[1]	-0.1	[1]
Transfers In and/or (Out) of Level 3	0	[2]	0	[3]
Other	0	[4]	0	[4]
Unrealized Gains (Losses) Included in, Net Income	6.3	[5]	2	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		0
Realized Gains (Losses)	0	[5]	0	[5]
Ending balance	121.3		21.9
U.S. Government and Government Agencies and Authorities [Member]	'		'
Financial Assets:	'		'
Beginning balance	17.4		'
Purchases and issues	0	[1]	'
Sales and settlements	0	[1]	'
Transfers In and/or (Out) of Level 3	-17.4	[2]	'
Other	0	[4]	'
Unrealized Gains (Losses) Included in, Net Income	0	[5]	'
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		'
Realized Gains (Losses)	0	[5]	'
Ending balance	0		'
Corporate Securities [Member]	'		'
Financial Assets:	'		'
Beginning balance	28		38.9
Purchases and issues	24.5	[1]	0	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	39	[2]	0	[3]
Other	-3	[4]	-13	[4]
Unrealized Gains (Losses) Included in, Net Income	0	[5]	0	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	3.6		0.2
Realized Gains (Losses)	0	[5]	-0.1	[5]
Ending balance	92.1		26
Residential Mortgage-Backed Securities [Member]	'		'
Financial Assets:	'		'
Beginning balance	0.2		0
Purchases and issues	0	[1]	0	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	0	[2]	0.2	[3]
Other	0	[4]	0	[4]
Unrealized Gains (Losses) Included in, Net Income	0	[5]	0	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		0
Realized Gains (Losses)	0	[5]	0	[5]
Ending balance	0.2		0.2
Commercial Mortgage-Backed Securities [Member]	'		'
Financial Assets:	'		'
Beginning balance	5.8		18.8
Purchases and issues	0	[1]	0	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	0	[2]	0	[3]
Other	-0.3	[4]	-3.7	[4]
Unrealized Gains (Losses) Included in, Net Income	0	[5]	0	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		-0.3
Realized Gains (Losses)	0	[5]	0	[5]
Ending balance	5.5		14.8
Other Debt Obligations [Member]	'		'
Financial Assets:	'		'
Beginning balance	128.8		73
Purchases and issues	0	[1]	5.5	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	-66.7	[2]	0	[3]
Other	-0.4	[4]	0	[4]
Unrealized Gains (Losses) Included in, Net Income	0	[5]	0	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	1.2		-1
Realized Gains (Losses)	0	[5]	0	[5]
Ending balance	62.9		77.5
Fixed Maturities Available-For-Sale [Member]	'		'
Financial Assets:	'		'
Beginning balance	180.2		130.7
Purchases and issues	24.5	[1]	5.5	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	-45.1	[2]	0.2	[3]
Other	-3.7	[4]	-16.7	[4]
Unrealized Gains (Losses) Included in, Net Income	0	[5]	0	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	4.8		-1.1
Realized Gains (Losses)	0	[5]	-0.1	[5]
Ending balance	160.7		118.5
Gross transfers out of Level 3	84.1		'
Marketable Equity Securities, Available-For-Sale [Member]	'		'
Financial Assets:	'		'
Beginning balance	'		5
Purchases and issues	'		0	[1]
Sales and settlements	'		0	[1]
Transfers In and/or (Out) of Level 3	'		0	[3]
Other	'		0	[4]
Unrealized Gains (Losses) Included in, Net Income	'		0	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	'		0
Realized Gains (Losses)	'		0	[5]
Ending balance	'		5
Marketable Equity Securities, Trading [Member]	'		'
Financial Assets:	'		'
Beginning balance	0.3		0.2
Purchases and issues	0	[1]	0	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	0	[2]	0	[3]
Other	0	[4]	0	[4]
Unrealized Gains (Losses) Included in, Net Income	0	[5]	0	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		0
Realized Gains (Losses)	0	[5]	0	[5]
Ending balance	0.3		0.2
Investments In Limited Partnerships [Member] | Private Equity Funds [Member]	'		'
Financial Assets:	'		'
Beginning balance	31.2		28.6
Purchases and issues	10.3	[1]	0.6	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	0	[2]	0	[3]
Other	0	[4]	-1.1	[4]
Unrealized Gains (Losses) Included in, Net Income	0	[5]	0.5	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		0
Realized Gains (Losses)	0	[5]	0	[5]
Ending balance	41.5		28.6
Equity index options [Member]	'		'
Financial Assets:	'		'
Beginning balance	38.8		'
Purchases and issues	0.9	[1]	'
Sales and settlements	0	[1]	'
Transfers In and/or (Out) of Level 3	-36.7	[2]	'
Other	-0.4	[4]	'
Unrealized Gains (Losses) Included in, Net Income	-3	[5]	'
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		'
Realized Gains (Losses)	2.9	[5]	'
Ending balance	2.5		'
Other [Member] | Portion at Fair Value Measurement [Member]	'		'
Financial Assets:	'		'
Beginning balance	3.2		'
Purchases and issues	0	[1]	'
Sales and settlements	0	[1]	'
Transfers In and/or (Out) of Level 3	0	[2]	'
Other	0	[4]	'
Unrealized Gains (Losses) Included in, Net Income	0.1	[5]	'
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		'
Realized Gains (Losses)	0	[5]	'
Ending balance	3.3		'
Other Invested Assets [Member] | Portion at Fair Value Measurement [Member]	'		'
Financial Assets:	'		'
Beginning balance	42		7.8
Purchases and issues	0.9	[1]	4.5	[1]
Sales and settlements	0	[1]	0	[1]
Transfers In and/or (Out) of Level 3	-36.7	[2]	0	[3]
Other	-0.4	[4]	-1	[4]
Unrealized Gains (Losses) Included in, Net Income	-2.9	[5]	3	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		0
Realized Gains (Losses)	2.9	[5]	0.3	[5]
Ending balance	5.8		14.6
Embedded derivatives [Member]	'		'
Financial Liabilities:	'		'
Beginning balance	92.1		14.1
Purchases and issues	23	[1]	5.9	[1]
Sales and settlements	-0.1	[1]	-0.1	[1]
Transfers In and/or (Out) of Level 3	0	[2]	0	[3]
Other	0	[4]	0	[4]
Unrealized Gains (Losses) Included in, Net Income	6.3	[5]	2	[5]
Unrealized Gains (Losses) Included in, Other Comprehensive Income	0		0
Realized Gains (Losses)	0	[5]	0	[5]
Ending balance	$121.30		$21.90
[1]	Issues and settlements are related to the Company’s embedded derivative liabilities.
[2]	Transfers into and/or out of Level 3 are reported at the value as of the beginning of the period in which the transfer occurs. Gross transfers into Level 3 were $39.0 for the three months ended March 31, 2014. Gross transfers out of Level 3 were $120.8 for the three months ended March 31, 2014, of which $84.1 were related to fixed maturities for which observable inputs became available. Additionally, transfers out included a change in valuation methodology for equity indexed options during the first quarter of 2014 to a method that uses significant observable inputs. Such securities are now classified as Level 2.
[3]	Transfers into and/or out of Level 3 are reported at the value as of the beginning of the period in which the transfer occurs. Gross transfers into Level 3 were $0.2 for the three months ended March 31, 2013. Gross transfers out of Level 3 were $0.0 for the three months ended March 31, 2013.
[4]	Other is comprised of transactions such as pay downs, calls, amortization and redemptions.
[5]	Realized and unrealized gains and losses for investments in limited partnerships are included in net investment income. All other realized and unrealized gains and losses recognized in net income are included in net realized gains (losses). Amounts shown for financial liabilities are (gains) losses in net income.

Deferred_Policy_Acquisition_Co2

Deferred Policy Acquisition Costs (DAC) and Deferred Sales Inducements (DSI) (Schedule Of Reconciliation For Deferred Policy Acquisition Costs) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]	'	'	'
Unamortized balance at beginning of period	$419.90	$367.90	'
Deferral of acquisition costs	40.2	17.9	'
Adjustments for realized (gains) losses	1.1	0.2	'
Amortization — excluding unlocking	-15.5	-15.5	'
Amortization — impact of assumption and experience unlocking	-4.4	-3.4	'
Unamortized balance at end of period	441.3	367.1	'
Accumulated effect of net unrealized gains	-121.2	-195	'
Balance at end of period	$320.10	$172.10	$322.50

Deferred_Policy_Acquisition_Co3

Deferred Policy Acquisition Costs (DAC) and Deferred Sales Inducements (DSI) (Schedule Of Reconciliation For Deferred Sales Inducements) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Movement in Deferred Sales Inducements [Roll Forward]	'	'
Unamortized balance at beginning of period	$154.80	$153.40
Capitalizations	9.6	13.3
Adjustments for realized (gains) losses	0.3	0.2
Amortization — excluding unlocking	-10.6	-10.3
Amortization — impact of assumption and experience unlocking	-3.8	-2.5
Unamortized balance at end of period	150.3	154.1
Accumulated effect of net unrealized gains	-86.5	-122.5
Balance at end of period	$63.80	$31.60

Stockholders_Equity_Schedule_O

Stockholders' Equity (Schedule Of Components and Reclassifications Out Of AOCI) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'		'
Beginning Balance	$593.60		'
Reclassifications recorded in:	'		'
Net investment income	324.4		323.7
Net realized (gains) losses	-20.7		-26.5
Total provision (benefit) for income taxes	-14.8		-17.4
Other comprehensive income (loss) after reclassifications	210.7		-78.1
Ending Balance	804.3		'
Other comprehensive income (loss) before reclassifications, available-for-sale securities, tax	127.6		-57.2
Other comprehensive income (loss) before reclassifications, OTTI on fixed maturities, tax	0		-0.2
Other comprehensive income (loss) before reclassifications, adjustment for DAC and DSI, tax	-11.3		8.2
Other comprehensive income (loss) before reclassifications, net gains (losses) on cash flow hedges, tax	-1.7		2.8
Other comprehensive income (loss) before reclassifications, AOCI, tax	114.6		-46.4
Net unrealized gains (losses) on available-for-sale securities [Member]	'		'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'		'
Beginning Balance	737.8		1,610.20
Other comprehensive income (loss) before reclassifications, net of taxes	237.1	[1]	-106.3	[2]
Reclassifications recorded in:	'		'
Net realized (gains) losses	-3		10.3
Total provision (benefit) for income taxes	1		-3.6
Total reclassifications from AOCI, net of taxes	-2		6.7
Other comprehensive income (loss) after reclassifications	235.1		-99.6
Ending Balance	972.9		1,510.60
Net unrealized gains (losses) on available-for-sale securities [Member] | Interest rate swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	0		0
Net unrealized gains (losses) on available-for-sale securities [Member] | Foreign currency swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	0		0
OTTI on fixed maturities not related to credit losses [Member]	'		'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'		'
Beginning Balance	-14.2	[3]	-19.6	[3]
Other comprehensive income (loss) before reclassifications, net of taxes	0	[1],[3]	-0.4	[2],[3]
Reclassifications recorded in:	'		'
Net realized (gains) losses	1.2	[3]	3.7	[3]
Total provision (benefit) for income taxes	-0.4	[3]	-1.3	[3]
Total reclassifications from AOCI, net of taxes	0.8	[3]	2.4	[3]
Other comprehensive income (loss) after reclassifications	0.8	[3]	2	[3]
Ending Balance	-13.4	[3]	-17.6	[3]
OTTI on fixed maturities not related to credit losses [Member] | Interest rate swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	0	[3]	0	[3]
OTTI on fixed maturities not related to credit losses [Member] | Foreign currency swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	0	[3]	0	[3]
Adjustment for DAC and DSI [Member]	'		'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'		'
Beginning Balance	-113.1	[4]	-221.4	[4]
Other comprehensive income (loss) before reclassifications, net of taxes	-20.9	[1],[4]	15.3	[2],[4]
Reclassifications recorded in:	'		'
Net realized (gains) losses	-1.4	[4]	-0.4	[4]
Total provision (benefit) for income taxes	0.5	[4]	0.1	[4]
Total reclassifications from AOCI, net of taxes	-0.9	[4]	-0.3	[4]
Other comprehensive income (loss) after reclassifications	-21.8	[4]	15	[4]
Ending Balance	-134.9	[4]	-206.4	[4]
Adjustment for DAC and DSI [Member] | Interest rate swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	0	[4]	0	[4]
Adjustment for DAC and DSI [Member] | Foreign currency swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	0	[4]	0	[4]
Net gains (losses) on cash flow hedges [Member]	'		'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'		'
Beginning Balance	-16.9		2
Other comprehensive income (loss) before reclassifications, net of taxes	-3.2	[1]	5.1	[2]
Reclassifications recorded in:	'		'
Net realized (gains) losses	0		0
Total provision (benefit) for income taxes	0.1		0.4
Total reclassifications from AOCI, net of taxes	-0.2		-0.6
Other comprehensive income (loss) after reclassifications	-3.4		4.5
Ending Balance	-20.3		6.5
Net gains (losses) on cash flow hedges [Member] | Interest rate swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	-0.5		-0.5
Net gains (losses) on cash flow hedges [Member] | Foreign currency swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	0.2		-0.5
Accumulated Other Comprehensive Income [Member]	'		'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'		'
Beginning Balance	593.6		1,371.20
Other comprehensive income (loss) before reclassifications, net of taxes	213	[1]	-86.3	[2]
Reclassifications recorded in:	'		'
Net realized (gains) losses	-3.2		13.6
Total provision (benefit) for income taxes	1.2		-4.4
Total reclassifications from AOCI, net of taxes	-2.3		8.2
Other comprehensive income (loss) after reclassifications	210.7		-78.1
Ending Balance	'		1,293.10
Accumulated Other Comprehensive Income [Member] | Interest rate swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	-0.5		-0.5
Accumulated Other Comprehensive Income [Member] | Foreign currency swaps [Member]	'		'
Reclassifications recorded in:	'		'
Net investment income	$0.20		($0.50)
[1]	Other comprehensive income (loss) before reclassifications is net of taxes of $127.6, $0.0, $(11.3), $(1.7) and $114.6, respectively, for the three months ended March 31, 2014.
[2]	Other comprehensive income (loss) before reclassifications is net of taxes of $(57.2), $(0.2), $8.2, $2.8 and $(46.4), respectively, for the three months ended March 31, 2013.
[3]	Reclassification adjustments of OTTI on fixed maturities not related to credit losses are included in changes in unrealized gains and losses on available-for-sale securities within the consolidated statements of comprehensive income (loss).
[4]	See Note 8 for the adjustment for the accumulated effect of net unrealized gains separately presented for DAC and DSI.

Stockholders_Equity_Schedule_O1

Stockholders' Equity (Schedule Of Reconciliation Of Changes In Outstanding Shares Of Common Stock) (Details)	3 Months Ended		12 Months Ended		6 Months Ended
	Mar. 31, 2014		Dec. 31, 2013		Jun. 20, 2013
					Warrant Settlement [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'		'		'
Beginning Balance	117,730,757		119,087,677		'
Common stock issued	0		5,300,569	[1]	5,297,758
Restricted stock issued, net	200,723		254,579		'
Employee stock purchase plan shares issued	42,067		133,122		'
Common stock repurchased	-1,354,329	[2]	-7,045,190	[2]	'
Ending Balance	116,619,218		117,730,757		'
[1]	Includes 5,297,758 shares of common stock issued from the settlement of warrants.
[2]	Represents shares of common stock repurchased pursuant to the Company’s stock repurchase program that began in 2013, which are held in treasury, as well as shares repurchased and subsequently retired to satisfy employee income tax withholding pursuant to the Company’s Equity Plan.

StockBased_Compensation_Summar

Stock-Based Compensation (Summary Of Restricted Stock Activity) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Number of Shares	'
Beginning balance	650,197
Shares granted	206,940
Shares vested	-7,095
Shares forfeited	-6,217
Ending balance	843,825
Weighted- Average Fair Value	'
Beginning balance (USD per share)	$11.53
Shares granted (USD per share)	$20.27
Shares vested (USD per share)	$10.79
Shares forfeited (USD per share)	$11.96
Ending balance (USD per share)	$13.68

Segment_Information_Narrative_

Segment Information (Narrative) (Details)	3 Months Ended
	Mar. 31, 2014
	segment
	division
Segment Reporting [Abstract]	'
Number Of Divisions	3
Number of reportable segments	5

Segment_Information_Schedule_O

Segment Information (Schedule Of Financial Information By Segment And Reconcile Segment Pre-Tax Adjusted Operating Income (Loss)) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Operating revenues:	'	'	'
Premiums	$153.80	$157	'
Net investment income	324.4	323.7	'
Policy fees, contract charges, and other	46.6	49.9	'
Benefits and expenses:	'	'	'
Policyholder benefits and claims	101.2	119.5	'
Interest credited	234.2	235.3	'
Other underwriting and operating expenses	87.9	91.8	'
Interest expense	8.2	8.2	'
Amortization of DAC	19.9	18.9	'
Total benefits and expenses	451.4	473.7	'
Total revenues	545.5	557.1	'
Income from operations before income taxes	94.1	83.4	'
Total assets	31,164.30	'	30,129.50
Benefits [Member]	'	'	'
Operating revenues:	'	'	'
Premiums	145	148	'
Net investment income	5	5.1	'
Policy fees, contract charges, and other	3.9	3.5	'
Certain realized gains (losses)	0	0	'
Total operating revenues	153.9	156.6	'
Benefits and expenses:	'	'	'
Policyholder benefits and claims	82.8	101.4	'
Interest credited	0	0	'
Other underwriting and operating expenses	43.2	41.7	'
Interest expense	0	0	'
Amortization of DAC	0.1	0	'
Total benefits and expenses	126.1	143.1	'
Segment pre-tax adjusted operating income (loss)	27.8	13.5	'
Add: Excluded realized gains (losses)	0	0	'
Total revenues	153.9	156.6	'
Income from operations before income taxes	27.8	13.5	'
Total assets	169.4	151.5	'
Deferred Annuities [Member]	'	'	'
Operating revenues:	'	'	'
Premiums	0	0	'
Net investment income	150.1	143.2	'
Policy fees, contract charges, and other	5.9	5.8	'
Certain realized gains (losses)	-0.2	0.9	'
Total operating revenues	155.8	149.9	'
Benefits and expenses:	'	'	'
Policyholder benefits and claims	0.1	0	'
Interest credited	87.5	82.9	'
Other underwriting and operating expenses	21.1	21.7	'
Interest expense	0	0	'
Amortization of DAC	16.9	16.2	'
Total benefits and expenses	125.6	120.8	'
Segment pre-tax adjusted operating income (loss)	30.2	29.1	'
Add: Excluded realized gains (losses)	-4.9	2.5	'
Total revenues	150.9	152.4	'
Income from operations before income taxes	25.3	31.6	'
Total assets	14,625.70	12,739.20	'
Income Annuities [Member]	'	'	'
Operating revenues:	'	'	'
Premiums	0	0	'
Net investment income	97	101.7	'
Policy fees, contract charges, and other	0.2	1.9	'
Certain realized gains (losses)	0	0	'
Total operating revenues	97.2	103.6	'
Benefits and expenses:	'	'	'
Policyholder benefits and claims	0	0	'
Interest credited	82	88.5	'
Other underwriting and operating expenses	4.8	5.4	'
Interest expense	0	0	'
Amortization of DAC	1	0.9	'
Total benefits and expenses	87.8	94.8	'
Segment pre-tax adjusted operating income (loss)	9.4	8.8	'
Add: Excluded realized gains (losses)	24.2	17.7	'
Total revenues	121.4	121.3	'
Income from operations before income taxes	33.6	26.5	'
Total assets	7,438.90	7,607.50	'
Individual Life [Member]	'	'	'
Operating revenues:	'	'	'
Premiums	8.8	9	'
Net investment income	70.9	69.2	'
Policy fees, contract charges, and other	36.2	33.1	'
Certain realized gains (losses)	0	0	'
Total operating revenues	115.9	111.3	'
Benefits and expenses:	'	'	'
Policyholder benefits and claims	18.3	18.1	'
Interest credited	65.2	64.2	'
Other underwriting and operating expenses	18.2	16	'
Interest expense	0	0	'
Amortization of DAC	1.9	1.8	'
Total benefits and expenses	103.6	100.1	'
Segment pre-tax adjusted operating income (loss)	12.3	11.2	'
Add: Excluded realized gains (losses)	2.5	-0.2	'
Total revenues	118.4	111.1	'
Income from operations before income taxes	14.8	11	'
Total assets	6,586.60	6,597.80	'
Other [Member]	'	'	'
Operating revenues:	'	'	'
Premiums	0	0	'
Net investment income	1.4	4.5	'
Policy fees, contract charges, and other	0.4	5.6	'
Certain realized gains (losses)	0	0	'
Total operating revenues	1.8	10.1	'
Benefits and expenses:	'	'	'
Policyholder benefits and claims	0	0	'
Interest credited	-0.5	-0.3	'
Other underwriting and operating expenses	0.6	7	'
Interest expense	8.2	8.2	'
Amortization of DAC	0	0	'
Total benefits and expenses	8.3	14.9	'
Segment pre-tax adjusted operating income (loss)	-6.5	-4.8	'
Add: Excluded realized gains (losses)	-0.9	5.6	'
Total revenues	0.9	15.7	'
Income from operations before income taxes	-7.4	0.8	'
Total assets	2,343.70	2,491.80	'
Consolidation [Member]	'	'	'
Operating revenues:	'	'	'
Premiums	153.8	157	'
Net investment income	324.4	323.7	'
Policy fees, contract charges, and other	46.6	49.9	'
Certain realized gains (losses)	-0.2	0.9	'
Total operating revenues	524.6	531.5	'
Benefits and expenses:	'	'	'
Policyholder benefits and claims	101.2	119.5	'
Interest credited	234.2	235.3	'
Other underwriting and operating expenses	87.9	91.8	'
Interest expense	8.2	8.2	'
Amortization of DAC	19.9	18.9	'
Total benefits and expenses	451.4	473.7	'
Segment pre-tax adjusted operating income (loss)	73.2	57.8	'
Add: Excluded realized gains (losses)	20.9	25.6	'
Total revenues	545.5	557.1	'
Income from operations before income taxes	94.1	83.4	'
Total assets	$31,164.30	$29,587.80	'

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	3 Months Ended		0 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	9-May-14
			Subsequent Event [Member]
Subsequent Event [Line Items]	'	'	'
Dividend declared per common share	$0.10	$0.08	$0.10
Total dividend declared	'	'	$11.60