Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 2,546.0	$ 2,113.5
Investments available-for-sale, at fair value:
Fixed maturity securities (amortized cost of $17,593.7 and $16,950.0)	18,218.6	16,920.0
Equity securities (cost of $1,143.4 and $1,055.8)	1,480.8	1,441.8
Other invested assets, current	13.6	19.1
Accrued investment income	169.4	170.8
Premium and self-funded receivables	5,212.8	4,602.8
Other receivables	2,016.2	2,421.4
Income taxes receivable	0.0	316.6
Securities lending collateral	1,360.1	1,300.4
Other current assets	1,906.8	1,555.7
Total current assets	32,924.3	30,862.1
Long-term investments available-for-sale, at fair value:
Fixed maturity securities (amortized cost of $522.8 and $550.4)	538.9	558.2
Equity securities (cost of $27.0 and $27.3)	31.2	31.0
Other invested assets, long-term	2,155.9	2,041.1
Property and equipment, net	2,006.6	2,019.8
Goodwill	17,562.2	17,562.2
Other intangible assets	8,012.3	8,158.0
Other noncurrent assets	1,168.5	485.4
Total assets	64,399.9	61,717.8
Liabilities and shareholders' equity
Medical claims payable	7,472.9	7,569.8
Reserves for future policy benefits	68.6	71.9
Other policyholder liabilities	2,092.0	2,256.5
Total policy liabilities	9,633.5	9,898.2
Unearned income	1,613.4	1,145.5
Accounts payable and accrued expenses	3,717.2	3,318.8
Income taxes payable	60.4	0.0
Security trades pending payable	155.3	73.1
Securities lending payable	1,359.3	1,300.9
Short-term borrowings	440.0	540.0
Current portion of long-term debt	927.9	0.0
Other current liabilities	3,129.9	2,816.1
Total current liabilities	21,036.9	19,092.6
Long-term debt, less current portion	14,242.3	15,324.5
Reserves for future policy benefits, noncurrent	646.9	631.7
Deferred tax liabilities, net	2,688.9	2,630.6
Other noncurrent liabilities	1,040.7	994.3
Total liabilities	39,655.7	38,673.7
Commitment and contingencies – Note 10
Shareholders' equity
Preferred stock, without par value, shares authorized – 100,000,000; shares issued and outstanding – none	0.0	0.0
Common stock, par value $0.01, shares authorized – 900,000,000; shares issued and outstanding – 263,396,236 and 261,238,188	2.6	2.6
Additional paid-in capital	8,741.4	8,555.6
Retained earnings	16,364.1	14,778.5
Accumulated other comprehensive loss	(363.9)	(292.6)
Total shareholders' equity	24,744.2	23,044.1
Total liabilities and shareholders' equity	$ 64,399.9	$ 61,717.8