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Derivative Financial Instruments - Schedule of Derivative Instruments Designated As Hedging Instrument Effect on Condensed Consolidated Statements of Comprehensive Income (Details) - Cash Flow Hedging [Member] - Designated as Hedging Instrument [Member] - Foreign exchange contracts [Member] - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Derivative [Line Items] |  |  |  |
(Loss)/gain recognized in OCI (effective element) | $ (3) | $ 5 | $ 7 | $ 5
Gain/(loss) reclassified from Accumulated OCL into income (effective element) | 1 | 0 | 3 | 1
Revenue [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Gain/(loss) reclassified from Accumulated OCL into income (effective element) | 0 | 0 | 0 | (1)
Salaries and Benefits [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Gain/(loss) reclassified from Accumulated OCL into income (effective element) | 0 | 0 | 1 | 2
Other Income/(Loss), Net [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Gain/(loss) reclassified from Accumulated OCL into income (effective element) | $ 1 | $ 0 | $ 2 | $ 0

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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/2009/role/commonPracticeRef -Topic 815 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480682/815-20-25-6A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
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- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A + Details
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- Definition Other comprehensive income loss cash flow hedge gain loss before reclassification before tax + References No definition available. + Details
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