CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 4,694	$ 5,061
Investment securities	16,626	13,881
Receivables, net of allowances of $88 in 2023 and $70 in 2022	2,035	1,674
Other current assets	6,631	5,567
Total current assets	29,986	26,183
Property and equipment, net	3,030	3,221
Long-term investment securities	382	380
Goodwill	9,550	9,142
Equity method investments	740	749
Other long-term assets	3,377	3,380
Total assets	47,065	43,055
Current liabilities:
Benefits payable	10,241	9,264
Trade accounts payable and accrued expenses	6,569	5,238
Book overdraft	353	298
Unearned revenues	266	286
Short-term debt	1,443	2,092
Total current liabilities	18,872	17,178
Long-term debt	10,213	9,034
Other long-term liabilities	1,662	1,473
Total liabilities	30,747	27,685
Commitments and contingencies (Note 17)
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; 198,690,082 shares issued at December 31, 2023 and 198,666,598 shares issued at December 31, 2022	33	33
Capital in excess of par value	3,346	3,246
Retained earnings	27,540	25,492
Accumulated other comprehensive loss	(999)	(1,304)
Treasury stock, at cost, 76,465,862 shares at December 31, 2023 and 73,691,955 shares at December 31, 2022	(13,658)	(12,156)
Total stockholders' equity	16,262	15,311
Noncontrolling interests	56	59
Total equity	16,318	15,370
Total liabilities and equity	$ 47,065	$ 43,055