Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 7,387	$ 4,880
Fixed maturities, current	25,952	26,267
Equity securities	953	1,881
Premium receivables	7,083	5,681
Self-funded receivables	4,663	4,010
Other receivables	4,298	3,749
Other current assets	5,281	4,654
Total current assets	55,617	51,122
Fixed maturity securities, long-term	752	632
Other invested assets, long-term	5,685	5,225
Property and equipment, net	4,316	3,919
Goodwill	24,383	24,228
Total intangible assets	10,315	10,615
Other noncurrent assets	1,704	1,719
Total assets	102,772	97,460
Liabilities and Equity
Medical claims payable	15,596	13,518
Other policyholder liabilities	5,933	5,521
Unearned income	1,112	1,153
Accounts payable and accrued expenses	5,607	4,970
Short-term borrowings	265	275
Current portion of long-term debt	1,500	1,599
Other current liabilities	9,683	7,849
Total current liabilities	39,696	34,885
Long-term debt, less current portion	22,349	21,157
Reserves for future policy benefits	737	802
Deferred tax liabilities, net	2,034	2,805
Other noncurrent liabilities	1,562	1,683
Total liabilities	66,378	61,332
Commitments and Contingencies—Note 14
Shareholders' equity
Preferred stock, without par value, shares authorized - 100,000,000; shares issued and outstanding - none	0	0
Common stock, par value $0.01, shares authorized - 900,000,000; shares issued and outstanding - 237,958,067 and 241,770,746	2	2
Additional paid-in capital	9,084	9,148
Retained earnings	29,724	27,088
Accumulated other comprehensive loss	(2,503)	(178)
Total shareholders' equity	36,307	36,060
Noncontrolling interests	87	68
Total equity	36,394	36,128
Total liabilities and equity	$ 102,772	$ 97,460