Debt - Schedule of Principal Maturities of Long-term Debt (Details) - FIS Credit Agreement $ in Millions	Dec. 31, 2025 USD ($)
Debt Instrument
2026	$ 1,284
2027	1,729
2028	1,736
2029	769
2030	1,181
Thereafter	3,918
Total principal payments	10,617
Other debt per the long-term debt table	(264)
Total long-term debt, including current portion	$ 10,353

Long-Term Debt, Excluding Unamortized Discount (Premium)

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