CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 5,501	$ 4,694
Investment securities	17,424	16,626
Receivables, net of allowances of $96 in 2024 and $88 in 2023	4,090	2,035
Other current assets	5,843	6,631
Total current assets	32,858	29,986
Property and equipment, net	2,821	3,030
Long-term investment securities	388	382
Equity method investments	736	740
Goodwill	9,567	9,550
Other long-term assets	3,723	3,377
Total assets	50,093	47,065
Current liabilities:
Benefits payable	11,446	10,241
Trade accounts payable and accrued expenses	6,527	6,569
Book overdraft	355	353
Unearned revenues	313	266
Short-term debt	1,149	1,443
Total current liabilities	19,790	18,872
Long-term debt	11,746	10,213
Other long-term liabilities	1,829	1,662
Total liabilities	33,365	30,747
Commitments and Contingencies (Note 13)
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; 198,718,810 shares issued at June 30, 2024 and 198,690,082 shares issued at December 31, 2023	33	33
Capital in excess of par value	3,420	3,346
Retained earnings	28,745	27,540
Accumulated other comprehensive loss	(1,122)	(999)
Treasury stock, at cost, 78,317,149 shares at June 30, 2024 and 76,465,862 shares at December 31, 2023	(14,405)	(13,658)
Total stockholders' equity	16,671	16,262
Noncontrolling interests	57	56
Total equity	16,728	16,318
Total liabilities and equity	$ 50,093	$ 47,065

Book Overdraft Liability

No definition available.

Name:	hum_BookOverdraftLiability
Namespace Prefix:	hum_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.