Debt Instrument, Extension Term

No definition available.

Name:	gpn_DebtInstrumentExtensionTerm
Namespace Prefix:	gpn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Number of Extension Options

+ References

No definition available.

+ Details

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Namespace Prefix:	gpn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option

+ References

No definition available.

+ Details

Name:	gpn_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption
Namespace Prefix:	gpn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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.

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+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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- Details

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- Details

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LONG-TERM DEBT AND LINES OF CREDIT - Revolving Credit Facility (Details) - Revolving credit facility	Jun. 30, 2026 USD ($)	May 15, 2025 USD ($) renewal_option	Aug. 19, 2022 USD ($)
Revolving credit facility
Debt Instrument [Line Items]
Gross long-term debt	$ 1,600,000,000
Revolving credit facility \| Revolving Credit Facility With Syndicate Financial Institution
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 7,250,000,000
Current borrowing capacity		5,750,000,000
Commitments under the revolving credit facility increased to aggregate amount		$ 7,500,000,000
Number of extension options \| renewal_option		2
Extension term		1 year
Interest rate (as a percent)	5.00%
Revolving credit facility \| Revolving Credit Facility With Syndicate Financial Institution \| Scenario, Plan
Debt Instrument [Line Items]
Current borrowing capacity		$ 1,500,000,000
Revolving credit facility \| Bank of America, N.A. Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 5,750,000,000
Standby Letters of Credit \| Revolving Credit Facility With Syndicate Financial Institution
Debt Instrument [Line Items]
Available borrowings under credit facility	$ 5,000,000,000.0
Letter of Credit \| Revolving Credit Facility With Syndicate Financial Institution
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 500,000,000