Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Long-Term Debt
Financing obligations for certain hardware and software	$ 91	$ 96
Other	(351)	(710)
Total long-term debt, including current portion	11,194	14,318
Current portion of long-term debt	(587)	(1,348)
Long-term debt, excluding current portion	$ 10,607	12,970
Revolving Credit Facility
Long-Term Debt
Weighted average interest rate	0.00%
Revolving credit facility	$ 0	127
Unused commitment fee	0.225%
Revolving Credit Facility \| Maximum
Long-Term Debt
Applicable margin	1.625%
Revolving Credit Facility \| Maximum \| SOFR
Long-Term Debt
Applicable margin	0.428%
FIS Credit Agreements
Long-Term Debt
Other	$ (351)
Senior Notes \| Senior USD Notes
Long-Term Debt
Weighted average interest rate	3.70%
Senior notes	$ 6,381	8,659
Senior Notes \| Senior USD Notes \| Minimum
Long-Term Debt
Debt instrument, stated percentage	1.20%
Senior Notes \| Senior USD Notes \| Maximum
Long-Term Debt
Debt instrument, stated percentage	5.60%
Senior Notes \| Senior Euro Notes
Long-Term Debt
Weighted average interest rate	2.60%
Senior notes	$ 4,858	4,968
Senior Notes \| Senior Euro Notes \| Minimum
Long-Term Debt
Debt instrument, stated percentage	0.60%
Senior Notes \| Senior Euro Notes \| Maximum
Long-Term Debt
Debt instrument, stated percentage	3.00%
Senior Notes \| Senior GBP Notes
Long-Term Debt
Weighted average interest rate	9.90%
Senior notes	$ 215	$ 1,178
Senior Notes \| Senior GBP Notes \| Minimum
Long-Term Debt
Debt instrument, stated percentage	2.30%
Senior Notes \| Senior GBP Notes \| Maximum
Long-Term Debt
Debt instrument, stated percentage	3.40%

Financing Obligations Hardware And Software

No definition available.

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- Definition

Long-Term Debt, Other Adjustments

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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- References

No definition available.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

+ References

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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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