Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 335.0	$ 331.4
Adjustments to reconcile net income to
Deferred policy acquisition costs	(21.2)	(38.1)
Premiums and other receivables	(198.1)	(145.9)
Unpaid claims and related items	25.7	195.6
Unearned premiums and other policyholders' liabilities	87.1	117.5
Income taxes	13.7	31.4
Prepaid federal income taxes	(19.1)	(17.5)
Reinsurance balances and funds	112.0	97.1
Realized investment (gains) losses	(58.1)	(77.0)
Accounts payable, accrued expenses and other	124.9	71.9
Total	401.9	566.5
Available for sale
Maturities and early calls	715.2	499.7
Sales	282.1	214.6
Sales of:
Equity securities	374.6	264.3
Other - net	14.6	17.2
Purchases of:
Available for sale	(876.4)	(733.6)
Held to maturity	(401.3)	(196.4)
Equity securities	(885.3)	(405.7)
Other - net	(35.5)	(34.3)
Net decrease (increase) in short-term investments	(37.4)	8.8
Other - net	0.0	0.1
Total	(849.5)	(365.3)
Cash flows from financing activities:
Proceeds from Other Debt	576.8	0.0
Issuance of common shares	6.9	5.6
Redemption of debentures and notes	(3.5)	(3.3)
Origination of Loans to Employee Stock Ownership Plans	0.0	(34.0)
Dividends on common shares	(145.3)	(143.7)
Other - net	(2.5)	(2.3)
Total	432.3	(177.8)
Increase (decrease) in cash	(15.1)	23.3
Cash, beginning of period	159.8	136.7
Cash, end of period	144.6	160.1
Supplemental cash flow information:
Cash paid (received) during the period for: Interest	40.7	40.7
Cash paid (received) during the period for: Income taxes	$ 146.4	$ 128.1