CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Net Income	$ 205.6	$ 220.8	$ 660.8	$ 660.3
Change in Net Unrealized Gains on Securities Before Reclassification Adjustment:
Change in Net Unrealized Gains on Securities Not Other-Than-Temporarily Impaired (net of tax expense of $599.6; $474.7; $754.9; $1,071.9)	1,124.5	906.2	1,419.0	2,035.3
Change in Net Unrealized Gains on Securities Other-Than-Temporarily Impaired (net of tax expense (benefit) of $ - ; $0.5; $(1.1); $ - )	0	1.0	(2.1)	0.1
Total Change in Net Unrealized Gains on Securities Before Reclassification Adjustment (net of tax expense of $599.6; $475.2; $753.8; $1,071.9)	1,124.5	907.2	1,416.9	2,035.4
Reclassification Adjustment for Net Realized Investment Gain (net of tax expense of $3.4; $0.4; $4.6; $1.1)	(5.3)	(1.5)	(7.7)	(3.3)
Change in Net Gain on Cash Flow Hedges (net of tax expense (benefit) of $34.7; $(6.0); $32.0; $22.9)	65.2	(11.7)	60.1	42.2
Change in Adjustment to Reserves for Future Policy and Contract Benefits, Net of Reinsurance and Other (net of tax benefit of $378.5; $472.6; $500.2; $1,015.6)	(705.3)	(894.2)	(934.0)	(1,923.8)
Change in Foreign Currency Translation Adjustment (net of tax expense of $ - ; $0.6; $ - ; $0.6)	(34.1)	53.3	(6.0)	(24.7)
Change in Unrecognized Pension and Postretirement Benefit Costs (net of tax expense (benefit) of $2.8; $1.9; $6.9; $(3.6))	5.2	2.8	15.0	27.0
Total Other Comprehensive Income	450.2	55.9	544.3	152.8
Comprehensive Income	$ 655.8	$ 276.7	$ 1,205.1	$ 813.1