CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenue
Premium Income	$ 1,929.4	$ 1,881.2	$ 5,778.9	$ 5,625.7
Net Investment Income	619.2	629.2	1,872.2	1,885.0
Realized Investment Gain (Loss)
Other-Than-Temporary Impairment Loss on Fixed Maturity Securities	0	(1.2)	0	(4.2)
Other Net Realized Investment Gain (Loss)	21.3	(22.7)	31.6	(8.1)
Net Realized Investment Gain (Loss)	21.3	(23.9)	31.6	(12.3)
Other Income	58.1	59.1	174.5	174.8
Total Revenue	2,628.0	2,545.6	7,857.2	7,673.2
Benefits and Expenses
Benefits and Change in Reserves for Future Benefits	1,686.9	1,635.6	5,033.0	4,828.0
Commissions	227.7	220.5	690.8	662.7
Interest and Debt Expense	36.6	35.1	107.3	108.1
Deferral of Acquisition Costs	(111.0)	(110.1)	(347.6)	(334.7)
Amortization of Deferred Acquisition Costs	87.0	84.3	285.6	273.9
Compensation Expense	187.0	198.3	589.3	598.9
Other Expenses	193.4	193.2	572.0	585.7
Total Benefits and Expenses	2,307.6	2,256.9	6,930.4	6,722.6
Income Before Income Tax	320.4	288.7	926.8	950.6
Income Tax
Current	85.5	54.4	126.4	210.7
Deferred	4.7	32.3	139.9	86.7
Total Income Tax	90.2	86.7	266.3	297.4
Net Income	$ 230.2	$ 202.0	$ 660.5	$ 653.2
Net Income Per Common Share
Basic	$ 0.83	$ 0.68	$ 2.33	$ 2.14
Assuming Dilution	$ 0.83	$ 0.68	$ 2.32	$ 2.13