CASH AND CASH EQUIVALENTS, FUNDS RECEIVABLE AND CUSTOMER ACCOUNTS, AND INVESTMENTS - Schedule of Estimated Fair Value of Investments Classified as Available for Sale (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	$ 20,726	$ 21,278
Gross Unrealized Gains	14	29
Gross Unrealized Losses	(20)	(15)
Estimated Fair Value	20,720	21,292
Funds receivable and customer accounts \| U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	4,438	5,709
Gross Unrealized Gains	2	4
Gross Unrealized Losses	0	(2)
Estimated Fair Value	4,440	5,711
Funds receivable and customer accounts \| Foreign government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	76	77
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	76	77
Funds receivable and customer accounts \| Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	2,352	405
Gross Unrealized Gains	3	0
Gross Unrealized Losses	(1)	0
Estimated Fair Value	2,354	405
Funds receivable and customer accounts \| Mortgage-backed and asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	4,558	4,039
Gross Unrealized Gains	5	13
Gross Unrealized Losses	(13)	(5)
Estimated Fair Value	4,550	4,047
Funds receivable and customer accounts \| Municipal securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	344	503
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Estimated Fair Value	344	504
Funds receivable and customer accounts \| Commercial paper
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	3,694	3,391
Gross Unrealized Gains	1	1
Gross Unrealized Losses	(1)	0
Estimated Fair Value	3,694	3,392
Short-term investments \| U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	390	188
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(2)
Estimated Fair Value	390	186
Short-term investments \| Foreign government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	143	84
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	143	84
Short-term investments \| Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,632	1,751
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(1)	(2)
Estimated Fair Value	1,632	1,749
Short-term investments \| Mortgage-backed and asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	832	848
Gross Unrealized Gains	1	5
Gross Unrealized Losses	(1)	0
Estimated Fair Value	832	853
Short-term investments \| Commercial paper
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	213	1,281
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Estimated Fair Value	213	1,282
Long-term investments: \| U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	230	235
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	230	235
Long-term investments: \| Foreign government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	60	124
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(1)
Estimated Fair Value	60	123
Long-term investments: \| Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	736	1,601
Gross Unrealized Gains	1	3
Gross Unrealized Losses	(1)	(2)
Estimated Fair Value	736	1,602
Long-term investments: \| Mortgage-backed and asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,028	1,042
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(2)	(1)
Estimated Fair Value	$ 1,026	$ 1,042

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

+ Details

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

- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

+ Details

Name:	us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aaa)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

+ Details

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

- Details

Name:	us-gaap_BalanceSheetLocationAxis=pypl_FundsReceivableAndCustomerAccountsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_MunicipalBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialPaperMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_ShortTermInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=pypl_LongTermInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: