| USD ($) $ in Millions, shares in Millions | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 | Dec 31, 2018 | Dec 31, 2017 | Dec 31, 2016 | Dec 31, 2015 | Dec 31, 2014 | Dec 31, 2013 | Dec 31, 2012 | Dec 31, 2011 | Dec 31, 2010 | Dec 31, 2009 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current assets: | |||||||||||||||||
Cash and cash equivalents | $ 24,365 | $ 25,312 | $ 25,427 | ||||||||||||||
Short-term investments | 3,756 | 3,801 | 4,201 | ||||||||||||||
Accounts receivable, net of allowances of $1,208 and $985 | 23,018 | 22,365 | 21,276 | ||||||||||||||
Other current receivables, net of allowances of $3,763 and $2,864 | 29,697 | 26,089 | 17,694 | ||||||||||||||
Assets under management | - | 0 | 3,755 | ||||||||||||||
Deferred income taxes | - | - | - | ||||||||||||||
Prepaid expenses and other current assets | 9,746 | 8,212 | 6,084 | ||||||||||||||
Total current assets | 90,582 | 85,779 | 78,437 | ||||||||||||||
Long-term investments | 54,251 | 52,354 | 47,609 | ||||||||||||||
Property, equipment and capitalized software, net of accumulated depreciation and amortization of $7,546 and $6,971 | 10,762 | 10,553 | 11,450 | ||||||||||||||
Goodwill | 110,499 | 106,734 | 103,732 | ||||||||||||||
Other intangible assets, net of accumulated amortization of $7,472 and $8,350 | 20,474 | 23,268 | 15,194 | ||||||||||||||
Other assets | 23,013 | 19,590 | 17,298 | ||||||||||||||
Total assets | 309,581 | 298,278 | 273,720 | ||||||||||||||
Liabilities, redeemable noncontrolling interests and equity | |||||||||||||||||
Current liabilities: | |||||||||||||||||
Medical costs payable | 39,337 | 34,224 | 32,395 | ||||||||||||||
Accounts payable and accrued liabilities | 38,032 | 34,337 | 31,958 | ||||||||||||||
Short-term borrowings and current maturities of long-term debt | 6,069 | 4,545 | 4,274 | ||||||||||||||
Other policy liabilities | - | - | - | ||||||||||||||
Unearned revenues | 3,413 | 3,317 | 3,355 | ||||||||||||||
Other current liabilities | 28,046 | 27,346 | 27,072 | ||||||||||||||
Total current liabilities | 114,897 | 103,769 | 99,054 | ||||||||||||||
Long-term debt, less current maturities | 72,320 | 72,359 | 58,263 | ||||||||||||||
Deferred income taxes | 2,421 | 3,620 | 3,021 | ||||||||||||||
Future policy benefits | - | - | - | ||||||||||||||
Other liabilities | 18,245 | 15,939 | 14,463 | ||||||||||||||
Deferred income taxes and other liabilities | - | - | - | ||||||||||||||
Total liabilities | 207,883 | 195,687 | 174,801 | ||||||||||||||
Redeemable noncontrolling interests | 1,608 | 4,323 | 4,498 | ||||||||||||||
Equity: | |||||||||||||||||
Preferred stock, $0.001 par value - 10 shares authorized; no shares issued or outstanding | 0 | 0 | 0 | ||||||||||||||
Common stock, $0.01 par value - 3,000 shares authorized; 906 and 915 issued and outstanding | 9 | 9 | 9 | ||||||||||||||
Additional paid-in capital | 559 | - | - | ||||||||||||||
Retained earnings | 95,603 | 96,036 | 95,774 | ||||||||||||||
Accumulated other comprehensive loss | (2,061) | (3,387) | (7,027) | ||||||||||||||
Nonredeemable noncontrolling interests | 5,980 | 5,610 | 5,665 | ||||||||||||||
Total equity | 100,090 | 98,268 | 94,421 | ||||||||||||||
Accumulated other comprehensive income (loss): | |||||||||||||||||
Net unrealized gains on investments, net of tax effects | - | - | - | ||||||||||||||
Foreign currency translation losses | - | - | - | ||||||||||||||
Total shareholders' equity | - | - | - | ||||||||||||||
Total liabilities and shareholders’ equity | $ 309,581 | $ 298,278 | $ 273,720 | ||||||||||||||
Preferred stock, par value | - | - | - | ||||||||||||||
Preferred stock, shares authorized | - | - | - | ||||||||||||||
Preferred stock, shares issued | - | - | - | ||||||||||||||
Preferred stock, shares outstanding | - | - | - | ||||||||||||||
Common stock, par value | - | - | - | ||||||||||||||
Common stock, shares authorized | - | - | - | ||||||||||||||
Common stock, shares issued | - | - | - | ||||||||||||||
Common Stock, Shares, Outstanding | - | - | - |