Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 7,985	$ 4,054
Investment securities	12,741	10,972
Receivables, less allowance for doubtful accounts of $78 in 2020 and $69 in 2019	1,135	1,056
Other current assets	5,170	3,806
Total current assets	27,031	19,888
Property and equipment, net	2,228	1,955
Long-term investment securities	1,105	406
Equity method investments	1,160	1,063
Goodwill	4,443	3,928
Other long-term assets	2,510	1,834
Total assets	38,477	29,074
Current liabilities:
Benefits payable	8,208	6,004
Trade accounts payable and accrued expenses	4,472	3,754
Book overdraft	214	225
Unearned revenues	287	247
Short-term debt	1,724	699
Total current liabilities	14,905	10,929
Long-term debt	6,059	4,967
Future policy benefits payable	202	206
Other long-term liabilities	1,543	935
Total liabilities	22,709	17,037
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; 198,648,742 shares issued at September 30, 2020 and 198,629,992 shares issued at December 31, 2019	33	33
Capital in excess of par value	2,940	2,820
Retained earnings	20,872	17,483
Accumulated other comprehensive income	370	156
Treasury stock, at cost, 66,307,291 shares at September 30, 2020 and 66,524,771 shares at December 31, 2019	(8,447)	(8,455)
Total stockholders’ equity	15,768	12,037
Total liabilities and stockholders’ equity	$ 38,477	$ 29,074