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Guarantees and Contingent Liabilities - Additional Information (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Airline Processing Arrangements |  |
Guarantor Obligations [Line Items] |  |
Value of airline tickets purchased to deliver at future date through card transactions | $ 15,000 |
Amount reserved for guaranteed obligations | 30 |
Airline Processing Arrangements | Escrow Deposits Letters of Credit Indemnities |  |
Guarantor Obligations [Line Items] |  |
Collateral held for guaranteed obligations | 657 |
Representation and Warranty |  |
Guarantor Obligations [Line Items] |  |
Amount reserved for guaranteed obligations | 8 | $ 9
Unresolved claims | $ 14 | $ 15

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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