| USD ($) $ in Millions | Jun 30, 2026 | Mar 31, 2026 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Sep 30, 2022 | Jun 30, 2022 | Mar 31, 2022 | Sep 30, 2021 | Jun 30, 2021 | Mar 31, 2021 | Sep 30, 2020 | Jun 30, 2020 | Mar 31, 2020 | Sep 30, 2019 | Jun 30, 2019 | Mar 31, 2019 | Sep 30, 2018 | Jun 30, 2018 | Mar 31, 2018 | Sep 30, 2017 | Jun 30, 2017 | Mar 31, 2017 | Sep 30, 2016 | Jun 30, 2016 | Mar 31, 2016 | Sep 30, 2015 | Jun 30, 2015 | Mar 31, 2015 | Sep 30, 2014 | Jun 30, 2014 | Mar 31, 2014 | Sep 30, 2013 | Jun 30, 2013 | Mar 31, 2013 | Sep 30, 2012 | Jun 30, 2012 | Mar 31, 2012 | Sep 30, 2011 | Jun 30, 2011 | Mar 31, 2011 | Sep 30, 2010 | Jun 30, 2010 | Mar 31, 2010 | Sep 30, 2009 |
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Cash and cash equivalents | |||||||||||||||||||||||||||||||||||||||||||||||||||
Cash and due from banks (includes restricted cash of consolidated variable interest entities: 2026, $4; 2025, nil) | $ 3,453 | $ 3,186 | $ 3,234 | $ 3,120 | $ 3,024 | $ 3,205 | $ 6,674 | $ 6,264 | $ 5,082 | $ 3,379 | $ 3,105 | $ 3,012 | |||||||||||||||||||||||||||||||||||||||
Interest-bearing deposits in other banks | 41,469 | 50,281 | 50,201 | 54,620 | 49,223 | 44,593 | 46,033 | 47,880 | 38,742 | 38,869 | 37,524 | 27,167 | |||||||||||||||||||||||||||||||||||||||
Short-term investment securities (includes restricted investments of consolidated variable interest entities: 2026, $73; 2025, $84) | 321 | 290 | 1,271 | 197 | 261 | 120 | 188 | 69 | 84 | 710 | 207 | 1,003 | |||||||||||||||||||||||||||||||||||||||
Total cash and cash equivalents (includes restricted cash: 2026, $165; 2025, $169) | 45,243 | 53,757 | 54,706 | 57,937 | 52,508 | 47,918 | 52,895 | 54,213 | 43,908 | 42,958 | 40,836 | 31,182 | |||||||||||||||||||||||||||||||||||||||
Investment securities | 4,073 | 2,625 | 1,374 | 1,258 | 1,110 | 1,268 | 1,210 | 2,232 | 3,160 | 4,087 | 3,964 | 4,539 | |||||||||||||||||||||||||||||||||||||||
Other loans, less reserves | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Card Member loans and receivables held for sale (includes gross loans and receivables available to settle obligations of consolidated variable interest entities) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Accounts receivable | |||||||||||||||||||||||||||||||||||||||||||||||||||
Card Member receivables (includes gross receivables available to settle obligations of consolidated variable interest entity), less reserves for credit losses | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Other receivables, less reserves | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Loans | |||||||||||||||||||||||||||||||||||||||||||||||||||
Card Member loans (includes gross loans available to settle obligations of consolidated variable interest entity), less reserves for credit losses | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Other loans, less reserves for credit losses | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Other, less reserves: 2010, $25; 2009, $27 | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Premises and equipment, less accumulated depreciation and amortization: 2026, $12,858; 2025, $12,039 | 7,689 | 7,240 | 5,861 | 5,662 | 5,383 | 5,308 | 5,247 | 5,138 | 5,124 | 5,177 | 5,204 | 5,095 | |||||||||||||||||||||||||||||||||||||||
Other assets, less reserves for credit losses: 2026, $121; 2025, $86 | 26,143 | 25,013 | 23,185 | 22,550 | 21,067 | 20,333 | 19,835 | 19,241 | 20,004 | 18,224 | 17,752 | 18,467 | |||||||||||||||||||||||||||||||||||||||
Assets of discontinued operations | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Total assets | 308,203 | 308,894 | 297,550 | 295,556 | 282,244 | 270,979 | 272,219 | 269,261 | 250,587 | 244,904 | 235,842 | 214,915 | |||||||||||||||||||||||||||||||||||||||
Liabilities and Shareholders’ Equity | |||||||||||||||||||||||||||||||||||||||||||||||||||
Liabilities | |||||||||||||||||||||||||||||||||||||||||||||||||||
Customer deposits | 156,973 | 157,948 | 149,883 | 149,386 | 146,396 | 135,438 | 133,746 | 134,418 | 124,439 | 122,756 | 120,806 | 103,463 | |||||||||||||||||||||||||||||||||||||||
Travelers Cheques and other prepaid products | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Accounts payable | 15,441 | 14,635 | 14,708 | 14,121 | 13,564 | 13,162 | 13,145 | 13,411 | 13,196 | 12,359 | 12,526 | 11,021 | |||||||||||||||||||||||||||||||||||||||
Short-term borrowings | 2,032 | 1,692 | 1,446 | 1,493 | 1,559 | 1,457 | 1,639 | 1,742 | 1,613 | 1,583 | 1,724 | 1,515 | |||||||||||||||||||||||||||||||||||||||
Long-term debt (includes debt issued by consolidated variable interest entities: 2026, $11,779; 2025, $13,022) | 57,017 | 58,750 | 57,787 | 58,202 | 51,236 | 53,546 | 51,521 | 48,826 | 46,447 | 46,725 | 41,138 | 42,393 | |||||||||||||||||||||||||||||||||||||||
Other liabilities | 42,460 | 41,874 | 41,309 | 40,043 | 38,287 | 37,669 | 42,628 | 42,100 | 37,568 | 34,778 | 33,656 | 32,583 | |||||||||||||||||||||||||||||||||||||||
Liabilities of discontinued operations | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Total liabilities | 273,923 | 274,899 | 265,133 | 263,245 | 251,042 | 241,272 | 242,679 | 240,497 | 223,263 | 218,201 | 209,850 | 190,975 | |||||||||||||||||||||||||||||||||||||||
Commitments and Contingencies (Note 24) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Shareholders’ Equity | |||||||||||||||||||||||||||||||||||||||||||||||||||
Preferred shares, $1.662/3 par value, authorized 20 million shares; issued and outstanding 1,600 shares as of June 30, 2026 and December 31, 2025 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||
Common shares, $0.20 par value, authorized 3.6 billion shares; issued and outstanding 675 million shares as of June 30, 2026 and 686 million shares as of December 31, 2025 | 135 | 137 | 138 | 140 | 140 | 141 | 143 | 144 | 146 | 148 | 149 | 150 | |||||||||||||||||||||||||||||||||||||||
Additional paid-in capital | 11,121 | 11,081 | 11,059 | 11,052 | 11,037 | 11,295 | 11,332 | 11,354 | 11,401 | 11,509 | 11,522 | 11,482 | |||||||||||||||||||||||||||||||||||||||
Retained earnings | 26,379 | 26,088 | 24,469 | 24,367 | 23,391 | 21,466 | 21,265 | 20,421 | 18,953 | 18,130 | 17,427 | 15,685 | |||||||||||||||||||||||||||||||||||||||
Accumulated other comprehensive income (loss) | |||||||||||||||||||||||||||||||||||||||||||||||||||
Net unrealized debt securities gains, net of tax of: 2021, $11; 2020, $20 | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Net unrealized derivatives losses, net of tax | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Foreign currency translation adjustments, net of tax of: 2021, $(366); 2020, $(381) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Net unrealized pension and other postretirement benefits, net of tax of: 2021, $(218); 2020, $(236) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||||||||||||||||||||||||||||
Accumulated other comprehensive income (loss) | (3,355) | (3,311) | (3,249) | (3,248) | (3,366) | (3,195) | (3,200) | (3,155) | (3,176) | (3,084) | (3,106) | (3,377) | |||||||||||||||||||||||||||||||||||||||
Total shareholders’ equity | 34,280 | 33,995 | 32,417 | 32,311 | 31,202 | 29,707 | 29,540 | 28,764 | 27,324 | 26,703 | 25,992 | 23,940 | |||||||||||||||||||||||||||||||||||||||
Total liabilities and shareholders’ equity | 308,203 | 308,894 | 297,550 | 295,556 | 282,244 | 270,979 | 272,219 | 269,261 | 250,587 | 244,904 | 235,842 | 214,915 | |||||||||||||||||||||||||||||||||||||||
Restricted cash and cash equivalents | - | - | - | - | - | - | - | - | - | - | - | - |