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Amount of revenue in continuing operations related to continuing involvement in a discontinued operation after disposal that before the disposal was eliminated as intra-entity transactions.

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Discontinued Operations and Dispositions - Narrative (Details) - Discontinued Operations, Disposed of by Sale - Hospitality Solutions Business - USD ($) $ in Millions		3 Months Ended			9 Months Ended
	Jul. 03, 2025	Sep. 30, 2026	Mar. 31, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disposal Group, Including Discontinued Operations [Line Items]
Estimated cash proceeds from sale of business	$ 965
Additional cash proceeds from sale of business			$ 4
Final cash proceeds from sale of business			$ 969
Pre-tax gain on sale of business				$ 821
After-tax gain on sale of business				$ 723
Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]				Other, net
Transition services agreement service period	18 months
Charges under the transition services agreement		$ 18		$ 20	$ 64	$ 20
Cash receipts related to transition services agreement charges					43	13
Revenue earned since closing of sale		17		11	50	11
Cash received since closing of sale		$ 22		3	$ 45	3
Revenue previously eliminated				$ 0		$ 23