Derivative Instruments - Derivatives in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Foreign Exchange Contract
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	$ 21	$ (33)
Designated as Hedging Instrument \| Cash Flow Hedging
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Beginning Balance	55	(85)
Amount of Gain (Loss) Recognized in Other Comprehensive Income	27	46
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	7	(28)
Ending Balance	75	(11)
Designated as Hedging Instrument \| Foreign Exchange Contract \| Cash Flow Hedging
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Beginning Balance	25	(95)
Amount of Gain (Loss) Recognized in Other Comprehensive Income	25	3
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	6	(27)
Ending Balance	44	(65)
Designated as Hedging Instrument \| Interest Rate Contract \| Cash Flow Hedging
Effect of derivative Contracts on Accumulated Other Comprehensive Income
Beginning Balance	30	10
Amount of Gain (Loss) Recognized in Other Comprehensive Income	2	43
Less: Amount of Gain (Loss) Reclassified From AOCI to Earnings	1	(1)
Ending Balance	$ 31	$ 54

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

+ 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

+ 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580

+ 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_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
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: