CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash Flows from Operating Activities
Net Income	$ 335.9	$ 426.5
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities
Change in Receivables	281.5	91.9
Change in Deferred Acquisition Costs	(42.1)	(5.0)
Change in Insurance Reserves and Liabilities	378.2	243.8
Change in Income Taxes	185.2	82.3
Change in Other Accrued Liabilities	(64.8)	(52.4)
Non-cash Components of Net Investment Income	(246.7)	(163.0)
Net Realized Investment (Gain) Loss	(85.5)	110.2
Depreciation	59.6	55.8
Cash Related to Reinsurance Agreement	456.8	0.0
Amortization of the Cost of Reinsurance	39.7	0.0
Other, Net	75.8	52.3
Net Cash Provided by Operating Activities	544.2	852.4
Cash Flows from Investing Activities
Proceeds from Sales of Fixed Maturity Securities	268.1	363.5
Proceeds from Maturities of Fixed Maturity Securities	1,393.5	891.7
Proceeds from Sales and Maturities of Other Investments	179.4	114.1
Purchases of Fixed Maturity Securities	(2,122.2)	(1,068.3)
Purchases of Other Investments	(167.9)	(250.2)
Net Purchases of Short-term Investments	(72.8)	(1,251.0)
Net Increase in Payables for Collateral on Investments	72.8	187.0
Net Purchases of Property and Equipment	(57.6)	(77.5)
Net Cash Used by Investing Activities	(506.7)	(1,090.7)
Cash Flows from Financing Activities
Short-term Debt Repayment	0.0	494.1
Issuance of Long-term Debt	588.1	0.0
Long-term Debt Repayment	(500.0)	(30.0)
Cost Related to Early Retirement of Debt	(62.8)	0.0
Issuance of Common Stock	1.4	2.3
Dividends Paid to Stockholders	(116.7)	(115.8)
Cash Received Related to Active Life Volatility Cover Agreement	17.9	0.0
Other, Net	(39.3)	(30.8)
Net Cash Provided (Used) by Financing Activities	(111.4)	319.8
Net Cash Provided by (Used in) Continuing Operations, Total	(73.9)	81.5
Cash and Bank Deposits at Beginning of Year	197.0	84.1
Cash and Bank Deposits at End of Period	$ 123.1	$ 165.6