Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 4,304	$ 4,673
Investment securities	13,719	12,554
Receivables, less allowance for doubtful accounts of $82 in 2021 and $72 in 2020	1,879	1,138
Other current assets	5,913	5,276
Total current assets	25,815	23,641
Property and equipment, net	2,898	2,371
Long-term investment securities	1,095	1,212
Equity method investments	143	1,170
Goodwill	10,806	4,447
Other long-term assets	4,563	2,128
Total assets	45,320	34,969
Current liabilities:
Benefits payable	8,758	8,143
Trade accounts payable and accrued expenses	4,957	4,013
Book overdraft	240	320
Unearned revenues	277	318
Short-term debt	795	600
Total current liabilities	15,027	13,394
Long-term debt	11,466	6,060
Other long-term liabilities	2,545	1,787
Total liabilities	29,038	21,241
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, 2021 and December 31, 2020	33	33
Capital in excess of par value	3,064	2,705
Retained earnings	23,191	20,517
Accumulated other comprehensive income	145	391
Treasury stock, at cost, 70,114,451 shares at September 30, 2021 and 69,787,614 shares at December 31, 2020	(10,173)	(9,918)
Noncontrolling interests	22	0
Total stockholders’ equity	16,282	13,728
Total liabilities and stockholders’ equity	$ 45,320	$ 34,969
Common stock, shares issued (in shares)	198,648,742	198,648,742