$unm 2010 Q4 10-K

Concept	2010 Q4	2010 Q3	2010 Q2
Revenue	$2.593B	$2.528B	$2.511B
YoY Change	525.6%	-0.83%	-6.43%
Cost Of Revenue		$1.588B	$1.580B
YoY Change
Gross Profit		$940.4M	$931.0M
YoY Change
Gross Profit Margin		37.2%	37.08%
Selling, General & Admin	$193.5M	$194.1M	$191.4M
YoY Change		-3.43%	-2.45%
% of Gross Profit		20.64%	20.56%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$19.30M	$130.6M	$135.9M
YoY Change	-1.03%	591.01%	634.59%
% of Gross Profit		13.89%	14.6%
Operating Expenses	$7.961B	$2.166B	$2.168B
YoY Change	1.74%	0.52%	-0.82%
Operating Profit		$325.4M	$337.6M
YoY Change
Interest Expense	-$39.10M	-$35.20M	-$34.10M
YoY Change	13.33%	26.16%	12.17%
% of Operating Profit		-10.82%	-10.1%
Other Income/Expense, Net	$7.657B
YoY Change	-0.98%
Pretax Income	$335.5M	$326.5M	$308.1M
YoY Change	16.7%	-2.42%	-25.07%
Income Tax	$0.00	$105.7M	$98.40M
% Of Pretax Income	0.0%	32.37%	31.94%
Net Earnings	$225.8M	$220.8M	$209.7M
YoY Change	16.33%	-0.14%	-21.52%
Net Earnings / Revenue	8.71%	8.73%	8.35%
Basic Earnings Per Share	$0.71	$0.68	$0.63
Diluted Earnings Per Share	$0.71	$0.68	$0.63
COMMON SHARES
Basic Shares Outstanding		323.1M shares	331.2M shares
Diluted Shares Outstanding		324.5M shares	332.6M shares

Concept	2010 Q4	2010 Q3	2010 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$54.00M	$79.00M	$81.00M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$476.8M	$468.0M	$454.0M
YoY Change	7.39%	8.84%	7.08%
Goodwill	$201.2M
YoY Change
Intangibles
YoY Change
Long-Term Investments	$46.24B	$47.72B	$45.40B
YoY Change	6.8%	10.68%	13.29%
Other Assets		$0.00	$0.00
YoY Change			-100.0%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$57.31B	$59.06B	$56.79B
YoY Change	5.2%	8.41%	10.62%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$225.0M	$225.0M	$225.0M
YoY Change			400.0%
Total Short-Term Liabilities	$361.0M	$379.0M	$398.0M
YoY Change	213.91%	163.19%	126.14%
LONG-TERM LIABILITIES
Long-Term Debt	$2.631B	$2.661B	$2.267B
YoY Change	3.18%	3.14%	0.71%
Other Long-Term Liabilities	$1.568B	$1.678B	$1.538B
YoY Change	8.29%	6.34%	-3.69%
Total Long-Term Liabilities	$4.199B	$4.339B	$3.805B
YoY Change	5.03%	4.35%	-1.12%
TOTAL LIABILITIES
Total Short-Term Liabilities	$361.0M	$379.0M	$398.0M
Total Long-Term Liabilities	$4.199B	$4.339B	$3.805B
Total Liabilities	$48.36B	$50.13B	$47.92B
YoY Change	5.19%	8.43%	9.26%
SHAREHOLDERS EQUITY
Retained Earnings	$7.061B
YoY Change
Common Stock	$2.652B
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.110B
YoY Change
Treasury Stock Shares	48.27M shares
Shareholders Equity	$8.485B	$8.924B	$8.872B
YoY Change
Total Liabilities & Shareholders Equity	$57.31B	$59.06B	$56.79B
YoY Change	5.2%	8.41%	10.62%

Concept	2010 Q4	2010 Q3	2010 Q2
OPERATING ACTIVITIES
Net Income	$225.8M	$220.8M	$209.7M
YoY Change	16.33%	-0.14%	-21.52%
Depreciation, Depletion And Amortization	$19.30M	$130.6M	$135.9M
YoY Change	-1.03%	591.01%	634.59%
Cash From Operating Activities	$283.0M	$245.4M	$386.8M
YoY Change	-26.19%	-0.04%	21.94%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$230.8M	-$413.8M	-$179.2M
YoY Change	-51.41%	24.53%	38.81%
Cash From Investing Activities	-$230.8M	-$413.8M	-$179.2M
YoY Change	-51.41%	24.53%	38.81%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-77.20M	165.6M	-177.9M
YoY Change	34.73%	-36.01%	-6.32%
NET CHANGE
Cash From Operating Activities	283.0M	245.4M	386.8M
Cash From Investing Activities	-230.8M	-413.8M	-179.2M
Cash From Financing Activities	-77.20M	165.6M	-177.9M
Net Change In Cash	-25.00M	-2.800M	29.70M
YoY Change	-83.21%	-101.63%	-1750.0%
FREE CASH FLOW
Cash From Operating Activities	$283.0M	$245.4M	$386.8M
Capital Expenditures
Free Cash Flow
YoY Change

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	681800000	USD
CY2010Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	669800000	USD
CY2011Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	119300000	USD
CY2010Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	112500000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	670900000	USD
CY2010Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	641600000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	605800000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	408300000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	361000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	408700000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	444100000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	318600000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-110900000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-121500000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities	-2100000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities	0	USD
CY2010Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2615400000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2591100000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	1500000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-2700000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-3300000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25200000	USD
CY2009	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33900000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	74000000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	61100000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	48600000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	41300000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	24000000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	23500000	USD
CY2009	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	22000000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	15300000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	17200000	USD
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2100000	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3500000	shares
CY2009	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7100000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3600000	shares
CY2011Q4	us-gaap	Assets Assets	60179000000	USD
CY2010Q4	us-gaap	Assets Assets	57307700000	USD
CY2009	us-gaap	Assumed Premiums Earned Accident And Health AssumedPremiumsEarnedAccidentAndHealth	239500000	USD
CY2011	us-gaap	Assumed Premiums Earned Accident And Health AssumedPremiumsEarnedAccidentAndHealth	216600000	USD
CY2010	us-gaap	Assumed Premiums Earned Accident And Health AssumedPremiumsEarnedAccidentAndHealth	241300000	USD
CY2011Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	11100000	USD
CY2011Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	42486700000	USD
CY2010Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	40035600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	36640700000	USD
CY2010Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	36546600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2041700000	USD
CY2010Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	3467600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	949200000	USD
CY2010Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	1290100000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	9630500000	USD
CY2010Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	9501600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5161500000	USD
CY2010Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	4740600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	18499000000	USD
CY2010Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	18570900000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	36640700000	USD
CY2010Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	36546600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	715100000	USD
CY2010Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	685700000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	2634600000	USD
CY2010Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	3047800000	USD
CY2010Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	40035600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	42486700000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	83500000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	222200000	USD
CY2010Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	237400000	USD
CY2011Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	114900000	USD
CY2010Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	158800000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1	142700000	USD
CY2010Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1	116100000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1	79500000	USD
CY2010Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1	121300000	USD
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	6068200000	USD
CY2010Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2010Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	3726400000	USD
CY2011	us-gaap	Basis Of Accounting BasisOfAccounting	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Basis of Presentation</font><font style="font-family:inherit;font-size:10pt;">: The accompanying consolidated financial statements of Unum Group and its subsidiaries (the Company) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP). Such accounting principles differ from statutory accounting principles (see Note 14). Intercompany transactions have been eliminated. In connection with our preparation of the consolidated financial statements, we evaluated events that occurred subsequent to </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2011</font><font style="font-family:inherit;font-size:10pt;">, for recognition or disclosure in our financial statements and notes to our financial statements. </font></div></div>
CY2009	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	8798700000	USD
CY2011	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	10020800000	USD
CY2010	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	8861900000	USD
CY2011Q4	us-gaap	Cash Cash	116600000	USD
CY2010Q4	us-gaap	Cash Cash	53600000	USD
CY2009Q4	us-gaap	Cash Cash	71600000	USD
CY2008Q4	us-gaap	Cash Cash	49900000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	63000000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-18000000	USD
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	21700000	USD
CY2011Q4	us-gaap	Cash And Securities Segregated Under Federal And Other Regulations CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations	294300000	USD
CY2010Q4	us-gaap	Cash And Securities Segregated Under Federal And Other Regulations CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations	293600000	USD
CY2011Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	312300000	USD
CY2010Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	0	USD
CY2011Q4	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	150000000	GBP
CY2011	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	35100000	USD
CY2011	us-gaap	Ceded Premiums Earned Accident And Health CededPremiumsEarnedAccidentAndHealth	-223900000	USD
CY2009	us-gaap	Ceded Premiums Earned Accident And Health CededPremiumsEarnedAccidentAndHealth	-258700000	USD
CY2010	us-gaap	Ceded Premiums Earned Accident And Health CededPremiumsEarnedAccidentAndHealth	-244200000	USD
CY2010	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge	-14400000	USD
CY2011	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge	8800000	USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2010Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	725000000	shares
CY2010Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	725000000	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	358691567	shares
CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	364842919	shares
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	35900000	USD
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	36500000	USD
CY2009	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2166100000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	887000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	342400000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	218400000	USD
CY2009	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	283700000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	246900000	USD
CY2009	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	94200000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	54100000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	12100000	USD
CY2009	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	377900000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	230500000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	301000000	USD
CY2010Q4	us-gaap	Debt Current DebtCurrent	225100000	USD
CY2011Q4	us-gaap	Debt Current DebtCurrent	312300000	USD
CY2010Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2856400000	USD
CY2011Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2882500000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	148500000	USD
CY2009	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	91400000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-230500000	USD
CY2009	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-29600000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	21800000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4300000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	144200000	USD
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	61800000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-208700000	USD
CY2010Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	417200000	USD
CY2011Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	261200000	USD
CY2010	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	547100000	USD
CY2009	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	526200000	USD
CY2011	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	533800000	USD
CY2011Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	2300900000	USD
CY2010Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	2521100000	USD
CY2009Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	2482500000	USD
CY2008Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	2472400000	USD
CY2011	us-gaap	Deferred Policy Acquisition Costs Additions DeferredPolicyAcquisitionCostsAdditions	-628300000	USD
CY2009	us-gaap	Deferred Policy Acquisition Costs Additions DeferredPolicyAcquisitionCostsAdditions	-593600000	USD
CY2010	us-gaap	Deferred Policy Acquisition Costs Additions DeferredPolicyAcquisitionCostsAdditions	-607700000	USD
CY2010Q4	us-gaap	Deferred Revenue And Credits DeferredRevenueAndCredits	100200000	USD
CY2011Q4	us-gaap	Deferred Revenue And Credits DeferredRevenueAndCredits	81000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	641800000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	504500000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	508600000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	641800000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	16600000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	29700000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	262300000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	174200000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	317800000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	349800000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	921700000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	903000000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	328400000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	257000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	138200000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	200600000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	507800000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	392700000	USD
CY2011Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiability	884200000	USD
CY2010Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiability	1027700000	USD
CY2011	us-gaap	Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear	45900000	USD
CY2011	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	81100000	USD
CY2009	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	74500000	USD
CY2010	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	75400000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	623100000	USD
CY2009	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	610300000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	631900000	USD
CY2010Q4	us-gaap	Derivative Assets DerivativeAssets	99100000	USD
CY2011Q4	us-gaap	Derivative Assets DerivativeAssets	137700000	USD
CY2011Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	45600000	USD
CY2010Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	39100000	USD
CY2011Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	45700000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	10700000	USD
CY2009	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-41600000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0.0	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	72700000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-4100000	USD
CY2009	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	44500000	USD
CY2010Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	295900000	USD
CY2011Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	309400000	USD
CY2009	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	14300000	USD
CY2011Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	173700000	USD
CY2010Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	199600000	USD
CY2011	us-gaap	Derivatives Methods Of Accounting DerivativesMethodsOfAccounting	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Derivative Financial Instruments</font><font style="font-family:inherit;font-size:10pt;">: Derivative financial instruments (including certain derivative instruments embedded in other contracts) are recognized as either assets or liabilities in our consolidated balance sheets and are reported at fair value. The accounting for changes in fair value of a derivative depends on whether it has been designated and qualifies as part of a hedging relationship, and further, on the type of hedging relationship. To qualify for hedge accounting, at the inception of the hedging transaction, we formally document the risk management objective and strategy for undertaking the hedging transaction, as well as the designation of the hedge as either a fair value hedge or a cash flow hedge. Included in this documentation is how the hedging instrument is expected to hedge the designated risk(s) related to specific assets or liabilities on the balance sheet or to specific forecasted transactions as well as a description of the method that will be used to retrospectively and prospectively assess the hedging instrument's effectiveness and the method that will be used to measure ineffectiveness. A derivative designated as a hedging instrument must be assessed as being highly effective in offsetting the designated risk(s) of the hedged item. Hedge effectiveness is formally assessed at inception and periodically throughout the life of the designated hedging relationship, using qualitative and quantitative methods. Qualitative methods include comparison of critical terms of the derivative to the hedged item. Quantitative methods include regression or other statistical analysis of changes in fair value or cash flows associated with the hedge relationship. For those derivatives that are designated and qualify as hedging instruments, the derivative is designated, based upon the exposure being hedged, as one of the following:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Fair value hedge</font><font style="font-family:inherit;font-size:10pt;">. Changes in the fair value of the derivative, including amounts measured as ineffectiveness, and changes in the fair value of the hedged item attributable to the risk being hedged are recognized in current earnings as a component of net realized investment gain or loss during the period of change in fair value.  The gain or loss on the termination of a fair value hedge is recognized in current earnings as a component of net realized investment gain or loss. When interest rate swaps are used in hedge accounting relationships, periodic settlements are recorded in the same income statement line as the related settlements of the hedged items.</font></div><div style="line-height:120%;text-align:left;padding-left:48px;text-indent:-24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Cash flow hedge</font><font style="font-family:inherit;font-size:10pt;">. To the extent it is effective, changes in the fair value of the derivative are reported in other comprehensive income and reclassified into earnings and reported on the same income statement line item as the hedged item and in the same period or periods during which the hedged item affects earnings. The ineffective portion of the hedge, if any, is recognized in current earnings as a component of net realized investment gain or loss during the period of change in fair value. The gain or loss on the termination of an effective cash flow hedge is reported in other comprehensive income and reclassified into earnings and reported on the same income statement line item as the hedged item and in the same period or periods during which the hedged item affects earnings.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Gains or losses on the termination of ineffective hedges are reported in current earnings as a component of net realized investment gain or loss. In the event a hedged item is disposed of or the anticipated transaction being hedged is no longer likely to occur, we will terminate the related derivative and recognize the gain or loss on termination in current earnings as a component of net realized investment gain or loss. In the event a hedged item is disposed of subsequent to the termination of the hedging transaction, we reclassify any remaining gain or loss on the cash flow hedge out of accumulated other comprehensive income into current earnings as a component of the same income statement line item wherein we report the gain or loss on disposition of the hedged item. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our freestanding derivatives all qualify as hedges and have been designated as either cash flow hedges or fair value hedges. We do not have any speculative positions in our freestanding derivatives. For a derivative not designated as a hedging instrument, the change in fair value is recognized in earnings during the period of change. Changes in the fair values of certain embedded derivatives are reported as a component of net realized investment gain or loss during the period of change.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In our consolidated balance sheets, we do not offset fair value amounts recognized for derivatives executed with the same counterparty under a master netting agreement and fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral arising from those master netting agreements.</font></div></div>
CY2009	us-gaap	Direct Premiums Earned Accident And Health DirectPremiumsEarnedAccidentAndHealth	7494700000	USD
CY2011	us-gaap	Direct Premiums Earned Accident And Health DirectPremiumsEarnedAccidentAndHealth	7521500000	USD
CY2010	us-gaap	Direct Premiums Earned Accident And Health DirectPremiumsEarnedAccidentAndHealth	7434300000	USD
CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.57
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.72
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.78
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.45
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.57
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.71
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.75
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.45
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	0	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	0	USD
CY2009	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	100000	USD
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.334
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.085
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.340
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2009	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.008
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.013
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.006
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.038
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.076
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.006
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.005
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.145
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.003
CY2010	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	21100000	USD
CY2011	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	-39400000	USD
CY2009	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	243100000	USD
CY2010	us-gaap	Fair Value Level1 To Level2 Transfers Amount FairValueLevel1ToLevel2TransfersAmount	2389400000	USD
CY2011	us-gaap	Fair Value Level1 To Level2 Transfers Amount FairValueLevel1ToLevel2TransfersAmount	3262500000	USD
CY2011	us-gaap	Fair Value Level2 To Level1 Transfers Amount FairValueLevel2ToLevel1TransfersAmount	2006100000	USD
CY2010	us-gaap	Fair Value Level2 To Level1 Transfers Amount FairValueLevel2ToLevel1TransfersAmount	2556100000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	-6500000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	-2200000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome	38700000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome	66300000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	228300000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	105300000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	84700000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	70100000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	561900000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	565100000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	503800000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	626300000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	1025700000	USD
CY2009Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	869400000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	1141400000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1500000	USD
CY2010Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1500000	USD
CY2008Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	0	USD
CY2009Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	3200000	USD
CY2010	us-gaap	Financing Receivable Allowance For Credit Losses Provisions FinancingReceivableAllowanceForCreditLossesProvisions	2400000	USD
CY2009	us-gaap	Financing Receivable Allowance For Credit Losses Provisions FinancingReceivableAllowanceForCreditLossesProvisions	5500000	USD
CY2011	us-gaap	Financing Receivable Allowance For Credit Losses Provisions FinancingReceivableAllowanceForCreditLossesProvisions	0	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Provisions FinancingReceivableAllowanceForCreditLossesProvisions	0	USD
CY2011	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	0	USD
CY2010	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	4100000	USD
CY2009	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2300000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	0	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Equal To Greater Than90 Days Past Due FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue	9400000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3900000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1600000	USD
CY2009	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1500000	USD
CY2009	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	12300000	USD
CY2009	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	56300000	USD
CY2010	us-gaap	Gain Loss On Investments GainLossOnInvestments	24700000	USD
CY2011	us-gaap	Gain Loss On Investments GainLossOnInvestments	-4900000	USD
CY2009	us-gaap	Gain Loss On Investments GainLossOnInvestments	11700000	USD
CY2011Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	-3600000	USD
CY2011Q4	us-gaap	Gain Loss On Investments GainLossOnInvestments	7400000	USD
CY2011Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	-23900000	USD
CY2011Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	15200000	USD
CY2010Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	-29500000	USD
CY2010Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	25600000	USD
CY2010Q4	us-gaap	Gain Loss On Investments GainLossOnInvestments	27500000	USD
CY2010Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	1100000	USD
CY2011	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	15000000	USD
CY2009	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	223500000	USD
CY2010	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	40600000	USD
CY2011	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	0	USD
CY2010	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	0	USD
CY2009	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	12300000	USD
CY2009	us-gaap	Gain On Cash Flow Hedge Ineffectiveness GainOnCashFlowHedgeIneffectiveness	12300000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	201200000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	201200000	USD
CY2011	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	21300000	USD
CY2010	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	22900000	USD
CY2009	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	7400000	USD
CY2009	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	100000	USD
CY2010	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	USD
CY2011	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	800000	USD
CY2010Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	22900000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	22500000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1500000	USD
CY2010Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1500000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	24000000	USD
CY2010Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	24400000	USD
CY2009	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2010	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2011	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	289800000	USD
CY2010	us-gaap	Impairment Of Investments ImpairmentOfInvestments	3800000	USD
CY2009	us-gaap	Impairment Of Investments ImpairmentOfInvestments	8100000	USD
CY2011	us-gaap	Impairment Of Investments ImpairmentOfInvestments	600000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	83200000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1065200000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1124700000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	227100000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	174000000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	206600000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1331300000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	257200000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1292300000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	338000000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	293300000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	330200000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-704300000	USD
CY2010Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	326500000	USD
CY2010Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	308100000	USD
CY2010Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	361200000	USD
CY2010Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	335500000	USD
CY2010	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	3300000	USD
CY2011	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	14400000	USD
CY2009	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	0	USD
CY2009	us-gaap	Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple	7700000	USD
CY2011	us-gaap	Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple	0	USD
CY2010	us-gaap	Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple	0	USD
CY2011Q4	us-gaap	Income Tax Examination Increase Decrease In Liability From Prior Year IncomeTaxExaminationIncreaseDecreaseInLiabilityFromPriorYear	-41300000	USD
CY2011Q4	us-gaap	Income Tax Examination Liability Refund Adjustment From Settlement With Taxing Authority IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority	60000000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21800000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	439700000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	445200000	USD
CY2009	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	1085500000	USD
CY2011	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	71300000	USD
CY2010	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	443000000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	6800000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2700000	USD
CY2011Q4	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	18600000	USD
CY2009	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	381600000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	273000000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	303500000	USD
CY2010	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	164300000	USD
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-301700000	USD
CY2009	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	59200000	USD
CY2009	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	239800000	USD
CY2011	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	240600000	USD
CY2010	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	276200000	USD
CY2010	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	60600000	USD
CY2009	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	67400000	USD
CY2011	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	94500000	USD
CY2011	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	1113900000	USD
CY2010	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	537800000	USD
CY2009	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	441200000	USD
CY2011	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	68400000	USD
CY2009	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-18400000	USD
CY2010	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-95500000	USD
CY2010	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-1700000	USD
CY2009	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-113900000	USD
CY2011	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-37000000	USD
CY2009	us-gaap	Insurance Commissions InsuranceCommissions	837100000	USD
CY2011	us-gaap	Insurance Commissions InsuranceCommissions	879200000	USD
CY2010	us-gaap	Insurance Commissions InsuranceCommissions	855400000	USD
CY2010	us-gaap	Interest And Debt Expense InterestAndDebtExpense	141800000	USD
CY2009	us-gaap	Interest And Debt Expense InterestAndDebtExpense	125400000	USD
CY2011	us-gaap	Interest And Debt Expense InterestAndDebtExpense	143300000	USD
CY2009	us-gaap	Interest Paid InterestPaid	122000000	USD
CY2010	us-gaap	Interest Paid InterestPaid	140700000	USD
CY2011	us-gaap	Interest Paid InterestPaid	145400000	USD
CY2010	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2545800000	USD
CY2011	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2578300000	USD
CY2009	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2393800000	USD
CY2009	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	29200000	USD
CY2010	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	28200000	USD
CY2011	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	26900000	USD
CY2011Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	43221100000	USD
CY2011Q4	us-gaap	Investments Investments	49213100000	USD
CY2010Q4	us-gaap	Investments Investments	46240900000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	808000000	USD
CY2010	us-gaap	Labor And Related Expense LaborAndRelatedExpense	776300000	USD
CY2009	us-gaap	Labor And Related Expense LaborAndRelatedExpense	793300000	USD
CY2010Q4	us-gaap	Liabilities Liabilities	48363300000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	51602000000	USD
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	57307700000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	60179000000	USD
CY2010Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Disability Accident And Health LiabilityForClaimsAndClaimsAdjustmentExpenseDisabilityAccidentAndHealth	1565000000	USD
CY2011Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Disability Accident And Health LiabilityForClaimsAndClaimsAdjustmentExpenseDisabilityAccidentAndHealth	1494000000	USD
CY2009Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Disability Accident And Health LiabilityForClaimsAndClaimsAdjustmentExpenseDisabilityAccidentAndHealth	1736900000	USD
CY2010Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	41280000000	USD
CY2011Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	44545900000	USD
CY2009Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	39477700000	USD
CY2010Q4	us-gaap	Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense	39715000000	USD
CY2011Q4	us-gaap	Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense	43051900000	USD
CY2009Q4	us-gaap	Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense	37740800000	USD
CY2011Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	86900000	USD
CY2010Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	123700000	USD
CY2009Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	131600000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	-5677000000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	-5746800000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	-5912800000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	-1588600000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	-1514800000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear	-1451600000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	-4324200000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	-4232000000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears	-4225400000	USD
CY2010Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Gross LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseGross	24339400000	USD
CY2009Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Gross LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseGross	24585700000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Gross LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseGross	24586500000	USD
CY2008Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Gross LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseGross	24419000000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	5890700000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	5651600000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims	6145500000	USD
CY2010	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	4517900000	USD
CY2009	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	4433300000	USD
CY2011	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims Current Year LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear	4684400000	USD
CY2008Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	22192700000	USD
CY2009Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	22406400000	USD
CY2010Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	22311200000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	22543900000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	2570200000	USD
CY2010Q4	us-gaap	Long Term Debt LongTermDebt	2631300000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2570200000	USD
CY2010Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2631300000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1915100000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	350000000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	296900000	USD
CY2010Q4	us-gaap	Marketable Securities Equity Securities MarketableSecuritiesEquitySecurities	10400000	USD
CY2011Q4	us-gaap	Marketable Securities Equity Securities MarketableSecuritiesEquitySecurities	11200000	USD
CY2009	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	215500000	USD
CY2011	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	19900000	USD
CY2010	us-gaap	Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount	15900000	USD
CY2011Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	1612300000	USD
CY2010Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	1516800000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-141100000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-720400000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1500000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1073700000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-410300000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1213900000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1237000000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1196800000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1193700000	USD
CY2009	us-gaap	Net Income Loss NetIncomeLoss	852600000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	886100000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	235400000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	-425400000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	229800000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	205600000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	225400000	USD
CY2010Q1	us-gaap	Net Income Loss NetIncomeLoss	229800000	USD
CY2010Q4	us-gaap	Net Income Loss NetIncomeLoss	225800000	USD
CY2010Q2	us-gaap	Net Income Loss NetIncomeLoss	209700000	USD
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	220800000	USD
CY2011	us-gaap	Net Investment Income NetInvestmentIncome	2519600000	USD
CY2009	us-gaap	Net Investment Income NetInvestmentIncome	2346600000	USD
CY2010	us-gaap	Net Investment Income NetInvestmentIncome	2495500000	USD
CY2011Q1	us-gaap	Net Investment Income NetInvestmentIncome	618700000	USD
CY2011Q4	us-gaap	Net Investment Income NetInvestmentIncome	634600000	USD
CY2011Q2	us-gaap	Net Investment Income NetInvestmentIncome	637100000	USD
CY2011Q3	us-gaap	Net Investment Income NetInvestmentIncome	629200000	USD
CY2010Q3	us-gaap	Net Investment Income NetInvestmentIncome	618400000	USD
CY2010Q4	us-gaap	Net Investment Income NetInvestmentIncome	634300000	USD
CY2010Q1	us-gaap	Net Investment Income NetInvestmentIncome	613000000	USD
CY2010Q2	us-gaap	Net Investment Income NetInvestmentIncome	629800000	USD
CY2010	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets	-459000000	USD
CY2012	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets	-407000000	USD
CY2009	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets	-455000000	USD
CY2011Q4	us-gaap	Notional Amount Of Derivatives NotionalAmountOfDerivatives	1413000000	USD
CY2008Q4	us-gaap	Notional Amount Of Derivatives NotionalAmountOfDerivatives	2532100000	USD
CY2010Q4	us-gaap	Notional Amount Of Derivatives NotionalAmountOfDerivatives	1681900000	USD
CY2009Q4	us-gaap	Notional Amount Of Derivatives NotionalAmountOfDerivatives	1620700000	USD
CY2011Q4	us-gaap	Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives	554000000	USD
CY2010Q4	us-gaap	Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives	617900000	USD
CY2011Q4	us-gaap	Notional Amount Of Interest Rate Cash Flow Hedge Derivatives NotionalAmountOfInterestRateCashFlowHedgeDerivatives	335000000	USD
CY2010Q4	us-gaap	Notional Amount Of Interest Rate Cash Flow Hedge Derivatives NotionalAmountOfInterestRateCashFlowHedgeDerivatives	540000000	USD
CY2009	us-gaap	Operating Income Loss OperatingIncomeLoss	1280600000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	262100000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	1306600000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	215000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	28800000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	13900000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	18700000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	22900000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	28400000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	102300000	USD
CY2009	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	30100000	USD
CY2011	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	36100000	USD
CY2010	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	29300000	USD
CY2011Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	0	USD

CY2011Q4

us-gaap

Accrued Investment Income Receivable

AccruedInvestmentIncomeReceivable

681800000

USD

CY2010Q4

us-gaap

Accrued Investment Income Receivable

AccruedInvestmentIncomeReceivable

669800000

USD

CY2011Q4

us-gaap

Accumulated Amortization Of Other Deferred Costs

AccumulatedAmortizationOfOtherDeferredCosts

119300000

USD

CY2010Q4

us-gaap

Accumulated Amortization Of Other Deferred Costs

AccumulatedAmortizationOfOtherDeferredCosts

112500000

USD

CY2011Q4

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

670900000

USD

CY2010Q4

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

641600000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

605800000

USD

CY2010Q4

us-gaap

Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

408300000

USD

CY2010Q4

us-gaap

Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax

AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax

361000000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax

AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax

408700000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax

AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

444100000

USD

CY2010Q4

us-gaap

Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax

AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

318600000

USD

CY2010Q4

us-gaap

Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax

AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

-110900000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax

AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

-121500000

USD

CY2010Q4

us-gaap

Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities

AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities

-2100000

USD

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities

AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities

0

USD

CY2010Q4

us-gaap

Additional Paid In Capital Common Stock

AdditionalPaidInCapitalCommonStock

2615400000

USD

CY2011Q4

us-gaap

Additional Paid In Capital Common Stock

AdditionalPaidInCapitalCommonStock

2591100000

USD

CY2009

us-gaap

Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation

1500000

USD

CY2010

us-gaap

Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation

-2700000

USD

CY2011

us-gaap

Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation

-3300000

USD

CY2010

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

25200000

USD

CY2009

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

33900000

USD

CY2011

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

74000000

USD

CY2010

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

61100000

USD

CY2009

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

48600000

USD

CY2010

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

41300000

USD

CY2011

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

24000000

USD

CY2011

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

23500000

USD

CY2009

us-gaap

Allocated Share Based Compensation Expense Net Of Tax

AllocatedShareBasedCompensationExpenseNetOfTax

22000000

USD

CY2011

us-gaap

Allocated Share Based Compensation Expense Net Of Tax

AllocatedShareBasedCompensationExpenseNetOfTax

15300000

USD

CY2010

us-gaap

Allocated Share Based Compensation Expense Net Of Tax

AllocatedShareBasedCompensationExpenseNetOfTax

17200000

USD

CY2011

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

2100000

shares

CY2010

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

3500000

shares

CY2009

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

7100000

shares

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

3600000

shares

CY2011Q4

us-gaap

Assets

60179000000

USD

CY2010Q4

us-gaap

Assets

57307700000

USD

CY2009

us-gaap

Assumed Premiums Earned Accident And Health

AssumedPremiumsEarnedAccidentAndHealth

239500000

USD

CY2011

us-gaap

Assumed Premiums Earned Accident And Health

AssumedPremiumsEarnedAccidentAndHealth

216600000

USD

CY2010

us-gaap

Assumed Premiums Earned Accident And Health

AssumedPremiumsEarnedAccidentAndHealth

241300000

USD

CY2011Q4

us-gaap

Available For Sale Equity Securities Amortized Cost Basis

AvailableForSaleEquitySecuritiesAmortizedCostBasis

11100000

USD

CY2011Q4

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

42486700000

USD

CY2010Q4

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

40035600000

USD

CY2011Q4

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

36640700000

USD

CY2010Q4

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

36546600000

USD

CY2011Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

2041700000

USD

CY2010Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

3467600000

USD

CY2011Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

949200000

USD

CY2010Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

1290100000

USD

CY2011Q4

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

9630500000

USD

CY2010Q4

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

9501600000

USD

CY2011Q4

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

5161500000

USD

CY2010Q4

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

4740600000

USD

CY2011Q4

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

18499000000

USD

CY2010Q4

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

18570900000

USD

CY2011Q4

us-gaap

Available For Sale Securities Debt Maturities Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost

36640700000

USD

CY2010Q4

us-gaap

Available For Sale Securities Debt Maturities Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost

36546600000

USD

CY2011Q4

us-gaap

Available For Sale Securities Debt Maturities Within One Year Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

715100000

USD

CY2010Q4

us-gaap

Available For Sale Securities Debt Maturities Within One Year Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

685700000

USD

CY2011Q4

us-gaap

Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

2634600000

USD

CY2010Q4

us-gaap

Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

3047800000

USD

CY2010Q4

us-gaap

Available For Sale Securities Fair Value Disclosure

AvailableForSaleSecuritiesFairValueDisclosure

40035600000

USD

CY2011Q4

us-gaap

Available For Sale Securities Fair Value Disclosure

AvailableForSaleSecuritiesFairValueDisclosure

42486700000

USD

CY2009

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

83500000

USD

CY2011Q4

us-gaap

Available For Sale Securities Gross Unrealized Losses1

AvailableForSaleSecuritiesGrossUnrealizedLosses1

222200000

USD

CY2010Q4

us-gaap

Available For Sale Securities Gross Unrealized Losses1

AvailableForSaleSecuritiesGrossUnrealizedLosses1

237400000

USD

CY2011Q4

us-gaap

Available For Sale Securities Pledged As Collateral

AvailableForSaleSecuritiesPledgedAsCollateral

114900000

USD

CY2010Q4

us-gaap

Available For Sale Securities Pledged As Collateral

AvailableForSaleSecuritiesPledgedAsCollateral

158800000

USD

CY2011Q4

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1

142700000

USD

CY2010Q4

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1

116100000

USD

CY2011Q4

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1

79500000

USD

CY2010Q4

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1

AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1

121300000

USD

CY2011Q4

us-gaap

Availableforsale Securities Gross Unrealized Gain

AvailableforsaleSecuritiesGrossUnrealizedGain

6068200000

USD

CY2010Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.10

CY2010Q4

us-gaap

Availableforsale Securities Gross Unrealized Gain

AvailableforsaleSecuritiesGrossUnrealizedGain

3726400000

USD

CY2011

us-gaap

Basis Of Accounting

BasisOfAccounting

<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Basis of Presentation</font><font style="font-family:inherit;font-size:10pt;">: The accompanying consolidated financial statements of Unum Group and its subsidiaries (the Company) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP). Such accounting principles differ from statutory accounting principles (see Note 14). Intercompany transactions have been eliminated. In connection with our preparation of the consolidated financial statements, we evaluated events that occurred subsequent to </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2011</font><font style="font-family:inherit;font-size:10pt;">, for recognition or disclosure in our financial statements and notes to our financial statements. </font></div></div>

CY2009

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

8798700000

USD

CY2011

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

10020800000

USD

CY2010

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

8861900000

USD

CY2011Q4

us-gaap

Cash

116600000

USD

CY2010Q4

us-gaap

Cash

53600000

USD

CY2009Q4

us-gaap

Cash

71600000

USD

CY2008Q4

us-gaap

Cash

49900000

USD

CY2011

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

63000000

USD

CY2010

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

-18000000

USD

CY2009

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

21700000

USD

CY2011Q4

us-gaap

Cash And Securities Segregated Under Federal And Other Regulations

CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations

294300000

USD

CY2010Q4

us-gaap

Cash And Securities Segregated Under Federal And Other Regulations

CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations

293600000

USD

CY2011Q4

us-gaap

Cash Collateral For Borrowed Securities

CashCollateralForBorrowedSecurities

312300000

USD

CY2010Q4

us-gaap

Cash Collateral For Borrowed Securities

CashCollateralForBorrowedSecurities

0

USD

CY2011Q4

us-gaap

Cash Dividends Paid To Parent Company

CashDividendsPaidToParentCompany

150000000

GBP

CY2011

us-gaap

Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months

CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

35100000

USD

CY2011

us-gaap

Ceded Premiums Earned Accident And Health

CededPremiumsEarnedAccidentAndHealth

-223900000

USD

CY2009

us-gaap

Ceded Premiums Earned Accident And Health

CededPremiumsEarnedAccidentAndHealth

-258700000

USD

CY2010

us-gaap

Ceded Premiums Earned Accident And Health

CededPremiumsEarnedAccidentAndHealth

-244200000

USD

CY2010

us-gaap

Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge

ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge

-14400000

USD

CY2011

us-gaap

Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge

ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge

8800000

USD

CY2011Q4

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

USD

CY2010Q4

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

USD

CY2011Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.10

CY2011Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

725000000

shares

CY2010Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

725000000

shares

CY2011Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

358691567

shares

CY2010Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

364842919

shares

CY2011Q4

us-gaap

Common Stock Value

CommonStockValue

35900000

USD

CY2010Q4

us-gaap

Common Stock Value

CommonStockValue

36500000

USD

CY2009

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

2166100000

USD

CY2010

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

887000000

USD

CY2011

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

342400000

USD

CY2011

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

218400000

USD

CY2009

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

283700000

USD

CY2010

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

246900000

USD

CY2009

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

94200000

USD

CY2010

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

54100000

USD

CY2011

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

12100000

USD

CY2009

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

377900000

USD

CY2011

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

230500000

USD

CY2010

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

301000000

USD

CY2010Q4

us-gaap

Debt Current

DebtCurrent

225100000

USD

CY2011Q4

us-gaap

Debt Current

DebtCurrent

312300000

USD

CY2010Q4

us-gaap

Debt Longterm And Shortterm Combined Amount

DebtLongtermAndShorttermCombinedAmount

2856400000

USD

CY2011Q4

us-gaap

Debt Longterm And Shortterm Combined Amount

DebtLongtermAndShorttermCombinedAmount

2882500000

USD

CY2010

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

148500000

USD

CY2009

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

91400000

USD

CY2011

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-230500000

USD

CY2009

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

-29600000

USD

CY2011

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

21800000

USD

CY2010

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

-4300000

USD

CY2010

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

144200000

USD

CY2009

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

61800000

USD

CY2011

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

-208700000

USD

CY2010Q4

us-gaap

Deferred Income Tax Liabilities

DeferredIncomeTaxLiabilities

417200000

USD

CY2011Q4

us-gaap

Deferred Income Tax Liabilities

DeferredIncomeTaxLiabilities

261200000

USD

CY2010

us-gaap

Deferred Policy Acquisition Cost Amortization Expense

DeferredPolicyAcquisitionCostAmortizationExpense

547100000

USD

CY2009

us-gaap

Deferred Policy Acquisition Cost Amortization Expense

DeferredPolicyAcquisitionCostAmortizationExpense

526200000

USD

CY2011

us-gaap

Deferred Policy Acquisition Cost Amortization Expense

DeferredPolicyAcquisitionCostAmortizationExpense

533800000

USD

CY2011Q4

us-gaap

Deferred Policy Acquisition Costs

DeferredPolicyAcquisitionCosts

2300900000

USD

CY2010Q4

us-gaap

Deferred Policy Acquisition Costs

DeferredPolicyAcquisitionCosts

2521100000

USD

CY2009Q4

us-gaap

Deferred Policy Acquisition Costs

DeferredPolicyAcquisitionCosts

2482500000

USD

CY2008Q4

us-gaap

Deferred Policy Acquisition Costs

DeferredPolicyAcquisitionCosts

2472400000

USD

CY2011

us-gaap

Deferred Policy Acquisition Costs Additions

DeferredPolicyAcquisitionCostsAdditions

-628300000

USD

CY2009

us-gaap

Deferred Policy Acquisition Costs Additions

DeferredPolicyAcquisitionCostsAdditions

-593600000

USD

CY2010

us-gaap

Deferred Policy Acquisition Costs Additions

DeferredPolicyAcquisitionCostsAdditions

-607700000

USD

CY2010Q4

us-gaap

Deferred Revenue And Credits

DeferredRevenueAndCredits

100200000

USD

CY2011Q4

us-gaap

Deferred Revenue And Credits

DeferredRevenueAndCredits

81000000

USD

CY2011Q4

us-gaap

Deferred Tax Assets Deferred Income

DeferredTaxAssetsDeferredIncome

641800000

USD

CY2010Q4

us-gaap

Deferred Tax Assets Deferred Income

DeferredTaxAssetsDeferredIncome

504500000

USD

CY2010Q4

us-gaap

Deferred Tax Assets Gross

DeferredTaxAssetsGross

508600000

USD

CY2011Q4

us-gaap

Deferred Tax Assets Gross

DeferredTaxAssetsGross

641800000

USD

CY2010Q4

us-gaap

Deferred Tax Assets Other

DeferredTaxAssetsOther

16600000

USD

CY2011Q4

us-gaap

Deferred Tax Assets Other

DeferredTaxAssetsOther

29700000

USD

CY2011Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

262300000

USD

CY2010Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

174200000

USD

CY2010Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

317800000

USD

CY2011Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

349800000

USD

CY2010Q4

us-gaap

Deferred Tax Liabilities

DeferredTaxLiabilities

921700000

USD

CY2011Q4

us-gaap

Deferred Tax Liabilities

DeferredTaxLiabilities

903000000

USD

CY2010Q4

us-gaap

Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost

DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost

328400000

USD

CY2011Q4

us-gaap

Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost

DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost

257000000

USD

CY2011Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

138200000

USD

CY2010Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

200600000

USD

CY2011Q4

us-gaap

Deferred Tax Liabilities Other Comprehensive Income

DeferredTaxLiabilitiesOtherComprehensiveIncome

507800000

USD

CY2010Q4

us-gaap

Deferred Tax Liabilities Other Comprehensive Income

DeferredTaxLiabilitiesOtherComprehensiveIncome

392700000

USD

CY2011Q4

us-gaap

Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability

DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiability

884200000

USD

CY2010Q4

us-gaap

Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability

DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiability

1027700000

USD

CY2011

us-gaap

Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year

DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear

45900000

USD

CY2011

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

81100000

USD

CY2009

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

74500000

USD

CY2010

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

75400000

USD

CY2011

us-gaap

Depreciation Depletion And Amortization

DepreciationDepletionAndAmortization

623100000

USD

CY2009

us-gaap

Depreciation Depletion And Amortization

DepreciationDepletionAndAmortization

610300000

USD

CY2010

us-gaap

Depreciation Depletion And Amortization

DepreciationDepletionAndAmortization

631900000

USD

CY2010Q4

us-gaap

Derivative Assets

DerivativeAssets

99100000

USD

CY2011Q4

us-gaap

Derivative Assets

DerivativeAssets

137700000

USD

CY2011Q4

us-gaap

Derivative Collateral Obligation To Return Cash

DerivativeCollateralObligationToReturnCash

45600000

USD

CY2010Q4

us-gaap

Derivative Collateral Obligation To Return Cash

DerivativeCollateralObligationToReturnCash

39100000

USD

CY2011Q4

us-gaap

Derivative Collateral Right To Reclaim Cash

DerivativeCollateralRightToReclaimCash

0

USD

CY2011

us-gaap

Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net

DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

45700000

USD

CY2010

us-gaap

Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net

DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

10700000

USD

CY2009

us-gaap

Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net

DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

-41600000

USD

CY2011

us-gaap

Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net

DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet

0.0

USD

CY2011

us-gaap

Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net

DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet

72700000

USD

CY2010

us-gaap

Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net

DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet

-4100000

USD

CY2009

us-gaap

Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net

DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet

44500000

USD

CY2010Q4

us-gaap

Derivative Liabilities

DerivativeLiabilities

295900000

USD

CY2011Q4

us-gaap

Derivative Liabilities

DerivativeLiabilities

309400000

USD

CY2009

us-gaap

Derivative Net Hedge Ineffectiveness Gain Loss

DerivativeNetHedgeIneffectivenessGainLoss

14300000

USD

CY2011Q4

us-gaap

Derivative Net Liability Position Aggregate Fair Value

DerivativeNetLiabilityPositionAggregateFairValue

173700000

USD

CY2010Q4

us-gaap

Derivative Net Liability Position Aggregate Fair Value

DerivativeNetLiabilityPositionAggregateFairValue

199600000

USD

CY2011

us-gaap

Derivatives Methods Of Accounting

DerivativesMethodsOfAccounting

<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Derivative Financial Instruments</font><font style="font-family:inherit;font-size:10pt;">: Derivative financial instruments (including certain derivative instruments embedded in other contracts) are recognized as either assets or liabilities in our consolidated balance sheets and are reported at fair value. The accounting for changes in fair value of a derivative depends on whether it has been designated and qualifies as part of a hedging relationship, and further, on the type of hedging relationship. To qualify for hedge accounting, at the inception of the hedging transaction, we formally document the risk management objective and strategy for undertaking the hedging transaction, as well as the designation of the hedge as either a fair value hedge or a cash flow hedge. Included in this documentation is how the hedging instrument is expected to hedge the designated risk(s) related to specific assets or liabilities on the balance sheet or to specific forecasted transactions as well as a description of the method that will be used to retrospectively and prospectively assess the hedging instrument's effectiveness and the method that will be used to measure ineffectiveness. A derivative designated as a hedging instrument must be assessed as being highly effective in offsetting the designated risk(s) of the hedged item. Hedge effectiveness is formally assessed at inception and periodically throughout the life of the designated hedging relationship, using qualitative and quantitative methods. Qualitative methods include comparison of critical terms of the derivative to the hedged item. Quantitative methods include regression or other statistical analysis of changes in fair value or cash flows associated with the hedge relationship. For those derivatives that are designated and qualify as hedging instruments, the derivative is designated, based upon the exposure being hedged, as one of the following:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Fair value hedge</font><font style="font-family:inherit;font-size:10pt;">. Changes in the fair value of the derivative, including amounts measured as ineffectiveness, and changes in the fair value of the hedged item attributable to the risk being hedged are recognized in current earnings as a component of net realized investment gain or loss during the period of change in fair value.  The gain or loss on the termination of a fair value hedge is recognized in current earnings as a component of net realized investment gain or loss. When interest rate swaps are used in hedge accounting relationships, periodic settlements are recorded in the same income statement line as the related settlements of the hedged items.</font></div><div style="line-height:120%;text-align:left;padding-left:48px;text-indent:-24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Cash flow hedge</font><font style="font-family:inherit;font-size:10pt;">. To the extent it is effective, changes in the fair value of the derivative are reported in other comprehensive income and reclassified into earnings and reported on the same income statement line item as the hedged item and in the same period or periods during which the hedged item affects earnings. The ineffective portion of the hedge, if any, is recognized in current earnings as a component of net realized investment gain or loss during the period of change in fair value. The gain or loss on the termination of an effective cash flow hedge is reported in other comprehensive income and reclassified into earnings and reported on the same income statement line item as the hedged item and in the same period or periods during which the hedged item affects earnings.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Gains or losses on the termination of ineffective hedges are reported in current earnings as a component of net realized investment gain or loss. In the event a hedged item is disposed of or the anticipated transaction being hedged is no longer likely to occur, we will terminate the related derivative and recognize the gain or loss on termination in current earnings as a component of net realized investment gain or loss. In the event a hedged item is disposed of subsequent to the termination of the hedging transaction, we reclassify any remaining gain or loss on the cash flow hedge out of accumulated other comprehensive income into current earnings as a component of the same income statement line item wherein we report the gain or loss on disposition of the hedged item. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our freestanding derivatives all qualify as hedges and have been designated as either cash flow hedges or fair value hedges. We do not have any speculative positions in our freestanding derivatives. For a derivative not designated as a hedging instrument, the change in fair value is recognized in earnings during the period of change. Changes in the fair values of certain embedded derivatives are reported as a component of net realized investment gain or loss during the period of change.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In our consolidated balance sheets, we do not offset fair value amounts recognized for derivatives executed with the same counterparty under a master netting agreement and fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral arising from those master netting agreements.</font></div></div>

CY2009

us-gaap

Direct Premiums Earned Accident And Health

DirectPremiumsEarnedAccidentAndHealth

7494700000

USD

CY2011

us-gaap

Direct Premiums Earned Accident And Health

DirectPremiumsEarnedAccidentAndHealth

7521500000

USD

CY2010

us-gaap

Direct Premiums Earned Accident And Health

DirectPremiumsEarnedAccidentAndHealth

7434300000

USD

CY2009

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

2.57

CY2010

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

2.72

CY2011

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.78

CY2011Q3

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.69

CY2011Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.75

CY2011Q1

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.72

CY2011Q4

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

-1.45

CY2010Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.63

CY2010Q3

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.68

CY2010Q4

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.71

CY2010Q1

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.69

CY2009

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

2.57

CY2010

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

2.71

CY2011

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.78

CY2011Q1

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.72

CY2011Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.75

CY2011Q4

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

-1.45

CY2011Q3

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.69

CY2010Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.63

CY2010Q4

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.71

CY2010Q1

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.69

CY2010Q3

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.68

CY2011

us-gaap

Effect Of Exchange Rate On Cash And Cash Equivalents

EffectOfExchangeRateOnCashAndCashEquivalents

0

USD

CY2010

us-gaap

Effect Of Exchange Rate On Cash And Cash Equivalents

EffectOfExchangeRateOnCashAndCashEquivalents

0

USD

CY2009

us-gaap

Effect Of Exchange Rate On Cash And Cash Equivalents

EffectOfExchangeRateOnCashAndCashEquivalents

100000

USD

CY2010

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.334

CY2011

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.085

CY2009

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.340

CY2010

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.350

CY2009

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.350

CY2011

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.350

CY2009

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

-0.008

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

-0.013

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

-0.006

CY2009

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

-0.005

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

-0.002

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

-0.038

CY2009

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits Investment

EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment

0.000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits Investment

EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment

-0.076

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits Investment

EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment

-0.006

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Tax Settlements

EffectiveIncomeTaxRateReconciliationTaxSettlements

0.005

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Tax Settlements

EffectiveIncomeTaxRateReconciliationTaxSettlements

-0.145

CY2009

us-gaap

Effective Income Tax Rate Reconciliation Tax Settlements

EffectiveIncomeTaxRateReconciliationTaxSettlements

0.003

CY2010

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

21100000

USD

CY2011

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

-39400000

USD

CY2009

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

243100000

USD

CY2010

us-gaap

Fair Value Level1 To Level2 Transfers Amount

FairValueLevel1ToLevel2TransfersAmount

2389400000

USD

CY2011

us-gaap

Fair Value Level1 To Level2 Transfers Amount

FairValueLevel1ToLevel2TransfersAmount

3262500000

USD

CY2011

us-gaap

Fair Value Level2 To Level1 Transfers Amount

FairValueLevel2ToLevel1TransfersAmount

2006100000

USD

CY2010

us-gaap

Fair Value Level2 To Level1 Transfers Amount

FairValueLevel2ToLevel1TransfersAmount

2556100000

USD

CY2010

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings

-6500000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings

-2200000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome

38700000

USD

CY2010

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome

66300000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

228300000

USD

CY2010

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

105300000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

84700000

USD

CY2010

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

70100000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

561900000

USD

CY2010

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

565100000

USD

CY2010

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

503800000

USD

CY2011

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

626300000

USD

CY2010Q4

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

1025700000

USD

CY2009Q4

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

869400000

USD

CY2011Q4

us-gaap

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value

FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

1141400000

USD

CY2011Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

1500000

USD

CY2010Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

1500000

USD

CY2008Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

0

USD

CY2009Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

3200000

USD

CY2010

us-gaap

Financing Receivable Allowance For Credit Losses Provisions

FinancingReceivableAllowanceForCreditLossesProvisions

2400000

USD

CY2009

us-gaap

Financing Receivable Allowance For Credit Losses Provisions

FinancingReceivableAllowanceForCreditLossesProvisions

5500000

USD

CY2011

us-gaap

Financing Receivable Allowance For Credit Losses Provisions

FinancingReceivableAllowanceForCreditLossesProvisions

0

USD

CY2011Q4

us-gaap

Financing Receivable Allowance For Credit Losses Provisions

FinancingReceivableAllowanceForCreditLossesProvisions

0

USD

CY2011

us-gaap

Financing Receivable Allowance For Credit Losses Write Offs

FinancingReceivableAllowanceForCreditLossesWriteOffs

0

USD

CY2010

us-gaap

Financing Receivable Allowance For Credit Losses Write Offs

FinancingReceivableAllowanceForCreditLossesWriteOffs

4100000

USD

CY2009

us-gaap

Financing Receivable Allowance For Credit Losses Write Offs

FinancingReceivableAllowanceForCreditLossesWriteOffs

2300000

USD

CY2011Q4

us-gaap

Financing Receivable Allowance For Credit Losses Write Offs

FinancingReceivableAllowanceForCreditLossesWriteOffs

0

USD

CY2011Q4

us-gaap

Financing Receivable Recorded Investment Equal To Greater Than90 Days Past Due

FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue

9400000

USD

CY2010

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

-3900000

USD

CY2011

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

-1600000

USD

CY2009

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

1500000

USD

CY2009

us-gaap

Gain Loss On Cash Flow Hedge Ineffectiveness Net

GainLossOnCashFlowHedgeIneffectivenessNet

12300000

USD

CY2009

us-gaap

Gain Loss On Contract Termination

GainLossOnContractTermination

56300000

USD

CY2010

us-gaap

Gain Loss On Investments

GainLossOnInvestments

24700000

USD

CY2011

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-4900000

USD

CY2009

us-gaap

Gain Loss On Investments

GainLossOnInvestments

11700000

USD

CY2011Q2

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-3600000

USD

CY2011Q4

us-gaap

Gain Loss On Investments

GainLossOnInvestments

7400000

USD

CY2011Q3

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-23900000

USD

CY2011Q1

us-gaap

Gain Loss On Investments

GainLossOnInvestments

15200000

USD

CY2010Q2

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-29500000

USD

CY2010Q1

us-gaap

Gain Loss On Investments

GainLossOnInvestments

25600000

USD

CY2010Q4

us-gaap

Gain Loss On Investments

GainLossOnInvestments

27500000

USD

CY2010Q3

us-gaap

Gain Loss On Investments

GainLossOnInvestments

1100000

USD

CY2011

us-gaap

Gain Loss On Investments Excluding Other Than Temporary Impairments

GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments

15000000

USD

CY2009

us-gaap

Gain Loss On Investments Excluding Other Than Temporary Impairments

GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments

223500000

USD

CY2010

us-gaap

Gain Loss On Investments Excluding Other Than Temporary Impairments

GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments

40600000

USD

CY2011

us-gaap

Gain Loss On Sale Of Derivatives

GainLossOnSaleOfDerivatives

0

USD

CY2010

us-gaap

Gain Loss On Sale Of Derivatives

GainLossOnSaleOfDerivatives

0

USD

CY2009

us-gaap

Gain Loss On Sale Of Derivatives

GainLossOnSaleOfDerivatives

12300000

USD

CY2009

us-gaap

Gain On Cash Flow Hedge Ineffectiveness

GainOnCashFlowHedgeIneffectiveness

12300000

USD

CY2010Q4

us-gaap

Goodwill

201200000

USD

CY2011Q4

us-gaap

Goodwill

201200000

USD

CY2011

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

21300000

USD

CY2010

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

22900000

USD

CY2009

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

7400000

USD

CY2009

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

100000

USD

CY2010

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

0

USD

CY2011

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

800000

USD

CY2010Q4

us-gaap

Impaired Financing Receivable Recorded Investment

ImpairedFinancingReceivableRecordedInvestment

22900000

USD

CY2011Q4

us-gaap

Impaired Financing Receivable Recorded Investment

ImpairedFinancingReceivableRecordedInvestment

22500000

USD

CY2011Q4

us-gaap

Impaired Financing Receivable Related Allowance

ImpairedFinancingReceivableRelatedAllowance

1500000

USD

CY2010Q4

us-gaap

Impaired Financing Receivable Related Allowance

ImpairedFinancingReceivableRelatedAllowance

1500000

USD

CY2011Q4

us-gaap

Impaired Financing Receivable Unpaid Principal Balance

ImpairedFinancingReceivableUnpaidPrincipalBalance

24000000

USD

CY2010Q4

us-gaap

Impaired Financing Receivable Unpaid Principal Balance

ImpairedFinancingReceivableUnpaidPrincipalBalance

24400000

USD

CY2009

us-gaap

Impairment Of Intangible Assets Finitelived

ImpairmentOfIntangibleAssetsFinitelived

0

USD

CY2010

us-gaap

Impairment Of Intangible Assets Finitelived

ImpairmentOfIntangibleAssetsFinitelived

0

USD

CY2011

us-gaap

Impairment Of Intangible Assets Finitelived

ImpairmentOfIntangibleAssetsFinitelived

289800000

USD

CY2010

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

3800000

USD

CY2009

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

8100000

USD

CY2011

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

600000

USD

CY2011

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

83200000

USD

CY2009

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

1065200000

USD

CY2010

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

1124700000

USD

CY2009

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

227100000

USD

CY2011

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

174000000

USD

CY2010

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

206600000

USD

CY2010

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments