Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 4,078	$ 3,934
Fixed maturity securities, current (amortized cost of $18,577 and $16,894)	19,123	16,692
Equity securities, current	1,492	1,493
Other invested assets, current	14	21
Accrued investment income	168	162
Premium receivables	4,751	4,465
Self-funded receivables	2,534	2,278
Other receivables	2,633	2,558
Income taxes receivable	296	10
Securities lending collateral	565	604
Other current assets	2,151	2,104
Total current assets	37,805	34,321
Long-term investments:
Fixed maturity securities (amortized cost of $493 and $486)	509	487
Equity securities	33	33
Other invested assets	3,719	3,726
Property and equipment, net	2,837	2,735
Goodwill	20,500	20,504
Other intangible assets	8,840	9,007
Other noncurrent assets	1,608	758
Total assets	75,851	71,571
Policy Liabilities
Medical claims payable	8,758	7,454
Reserves for future policy benefits	77	75
Other policyholder liabilities	2,586	2,590
Total policy liabilities	11,421	10,119
Unearned income	900	902
Accounts payable and accrued expenses	4,028	4,959
Security trades pending payable	382	197
Securities lending payable	564	604
Short-term borrowings	1,010	1,145
Current portion of long-term debt	850	849
Other current liabilities	3,935	3,190
Total current liabilities	23,090	21,965
Long-term debt, less current portion	17,436	17,217
Reserves for future policy benefits, noncurrent	655	706
Deferred tax liabilities, net	2,211	1,960
Other noncurrent liabilities	1,666	1,182
Total liabilities	45,058	43,030
Commitment and contingencies – Note 11
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 – 255,876,479 and 257,395,577	3	3
Additional paid-in capital	9,494	9,536
Retained earnings	21,679	19,988
Accumulated other comprehensive loss	(383)	(986)
Total shareholders' equity	30,793	28,541
Total liabilities and shareholders' equity	$ 75,851	$ 71,571