CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net Income	$ 1,314.2	$ 824.2	$ 793.0
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities
Change in Receivables	566.0	678.0	242.9
Deferral of Acquisition Costs	34.1	78.0	29.9
Change in Insurance Reserves and Liabilities	(282.0)	74.2	1,481.8
Change in Income Taxes	(58.8)	295.3	(31.3)
Change in Other Accrued Liabilities	(113.9)	11.3	160.1
Non-cash Components of Net Investment Income	(247.0)	(254.7)	(120.5)
Net Investment (Gain) Loss	15.7	(76.7)	(1,199.1)
Depreciation	110.5	119.8	113.6
Cash Related to Reinsurance Transaction	0.0	(456.8)	(1,087.2)
Amortization of the Cost of Reinsurance	63.8	79.1	2.6
Other, Net	16.1	15.8	83.5
Net Cash Provided by Operating Activities	1,418.7	1,387.5	469.3
Cash Flows from Investing Activities
Proceeds from Sales of Fixed Maturity Securities	559.5	442.5	990.8
Proceeds from Maturities of Fixed Maturity Securities	1,532.5	2,611.4	2,052.4
Proceeds from Sales and Maturities of Other Investments	445.9	403.1	237.0
Purchase of Fixed Maturity Securities	(2,835.3)	(4,106.3)	(3,169.6)
Purchase of Other Investments	(482.9)	(606.8)	(440.6)
Net Sales (Purchases) of Short-term Investments	(22.6)	76.5	(133.1)
Net Increase (Decrease) in Payables for Collateral on Investments	(50.8)	(50.7)	314.5
Net Purchases of Property and Equipment	(102.2)	(110.3)	(119.1)
Net Cash Used by Investing Activities	(955.9)	(1,340.6)	(267.7)
Cash Flows from Financing Activities
Short-term Debt Repayment	0.0	0.0	(400.0)
Issuance of Long-term Debt	349.2	588.1	494.1
Long-term Debt Repayment	(364.0)	(500.0)	(80.0)
Cost Related to Early Retirement of Debt	3.6	62.8	0.0
Issuance of Common Stock	4.0	3.4	4.4
Repurchase of Common Stock	(200.1)	(50.0)	0.0
Dividends Paid to Stockholders	(254.2)	(239.4)	(231.9)
Proceeds from Policyholder Account Deposits	119.8	128.1	138.4
Payments for Policyholder Account Withdrawals	(72.0)	(80.7)	(74.3)
Cash Received Related to Active Life Volatility Cover Agreement	5.2	40.4	62.1
Other, Net	(2.9)	4.0	(1.5)
Net Cash Used by Financing Activities	(418.6)	(168.9)	(88.7)
Net Increase (Decrease) in Cash and Bank Deposits	44.2	(122.0)	112.9
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Beginning Balance	75.0	197.0	84.1
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Ending Balance	$ 119.2	$ 75.0	$ 197.0

Cash Received Related to Active Life Volatility Cover Agreement Reinsurance Agreement

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Net operating cash related to reinsurance agreement

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The cash inflow from a segregated fund account during the period.

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of increase (decrease) in deferred policy acquisition cost.

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