Derivative Instruments - Schedule of Derivatives in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Foreign exchange contracts
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	$ (4)	$ (12)	$ (18)	$ (3)
Designated as Hedging Instruments \| Interest rate contracts
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	1	2	3	4
Designated as Hedging Instruments \| Cash Flow Hedging
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Beginning Balance			(7)	75
Amount of Gain (Loss) Recognized in Other Comprehensive Income			25	(108)
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings			(11)	6
Ending Balance	29	(39)	29	(39)
Designated as Hedging Instruments \| Cash Flow Hedging \| Foreign exchange contracts
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Beginning Balance			(44)	25
Amount of Gain (Loss) Recognized in Other Comprehensive Income			25	(105)
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	(1)	(6)	(14)	2
Ending Balance	(5)	(82)	(5)	(82)
Designated as Hedging Instruments \| Cash Flow Hedging \| Interest rate contracts
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Beginning Balance			37	50
Amount of Gain (Loss) Recognized in Other Comprehensive Income			0	(3)
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings			3	4
Ending Balance	$ 34	$ 43	$ 34	$ 43

Derivative instruments gain (loss) roll forward

No definition available.

Name:	ebay_DerivativeInstrumentsGainLossRollForward
Namespace Prefix:	ebay_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-11

+ Details

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

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482881/825-10-55-10

+ Details

Name:	us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(19))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-11

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: