Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 5,527	$ 2,343
Investment securities	10,430	10,026
Receivables, less allowance for doubtful accounts of $73 in 2019 and $79 in 2018	848	1,015
Other current assets	3,519	3,564
Total current assets	20,324	16,948
Property and equipment, net	1,864	1,735
Long-term investment securities	404	411
Equity method investment in Kindred at Home	1,061	1,047
Goodwill	3,922	3,897
Other long-term assets	1,605	1,375
Total assets	29,180	25,413
Current liabilities:
Benefits payable	6,220	4,862
Trade accounts payable and accrued expenses	3,640	3,067
Book overdraft	273	171
Unearned revenues	274	283
Short-term debt	699	1,694
Total current liabilities	11,106	10,077
Long-term debt	5,365	4,375
Future policy benefits payable	211	219
Other long-term liabilities	897	581
Total liabilities	17,579	15,252
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	0	0
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 198,628,992 shares issued at September 30, 2019 and 198,594,841 shares issued at December 31, 2018	33	33
Capital in excess of par value	2,608	2,535
Retained earnings	17,045	15,072
Accumulated other comprehensive income (loss)	177	(159)
Treasury stock, at cost, 66,202,947 shares at September 30, 2019 and 63,028,169 shares at December 31, 2018	(8,262)	(7,320)
Total stockholders’ equity	11,601	10,161
Total liabilities and stockholders’ equity	$ 29,180	$ 25,413