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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

X

- 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

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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

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- Definition

Other comprehensive income loss cash flow hedge gain loss before reclassification before tax

+ References

No definition available.

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