CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue
Premium Income	$ 9,365.6	$ 8,986.1	$ 8,597.1
Net Investment Income	2,435.3	2,453.7	2,451.7
Realized Investment Gain (Loss)
Other-Than-Temporary Impairment Loss on Fixed Maturity Securities	(25.3)	(17.5)	(8.1)
Net Realized Investment Gain (Loss), Excluding Other-Than-Temporary Impairment Loss on Fixed Maturity Securities	2.1	(22.0)	48.4
Net Realized Investment Gain (Loss)	(23.2)	(39.5)	40.3
Other Income	221.2	198.2	197.7
Total Revenue	11,998.9	11,598.5	11,286.8
Benefits and Expenses
Benefits and Change in Reserves for Future Benefits	7,496.2	8,020.4	7,055.7
Commissions	1,122.7	1,108.4	1,060.8
Interest and Debt Expense	177.4	167.3	159.9
Cost Related to Early Retirement of Debt	27.3	0.0	0.0
Deferral of Acquisition Costs	(658.6)	(668.0)	(628.0)
Amortization of Deferred Acquisition Costs	609.9	565.5	527.1
Compensation Expense	898.3	885.9	852.3
Other Expenses	943.6	891.2	855.0
Total Benefits and Expenses	10,616.8	10,970.7	9,882.8
Income Before Income Tax	1,382.1	627.8	1,404.0
Income Tax
Current	274.8	227.4	401.3
Deferred	7.0	(123.0)	8.5
Total Income Tax	281.8	104.4	409.8
Net Income	$ 1,100.3	$ 523.4	$ 994.2
Net Income Per Common Share
Basic	$ 5.25	$ 2.38	$ 4.39
Assuming Dilution	$ 5.24	$ 2.38	$ 4.37