FUNDS RECEIVABLE AND CUSTOMER ACCOUNTS AND INVESTMENTS - Estimated Fair Value of Investments Classified as Available for Sale (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	$ 25,468	$ 23,232
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(701)	(87)
Estimated Fair Value	24,767	23,145
Funds receivable and customer accounts \| U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	9,698	8,754
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(288)	(31)
Estimated Fair Value	9,410	8,723
Funds receivable and customer accounts \| Foreign government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,671	1,849
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(52)	(9)
Estimated Fair Value	1,619	1,840
Funds receivable and customer accounts \| Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,698	3,377
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(93)	(15)
Estimated Fair Value	1,605	3,362
Funds receivable and customer accounts \| Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,379	1,552
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(36)	(3)
Estimated Fair Value	1,343	1,549
Funds receivable and customer accounts \| Municipal securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	328	535
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(4)	0
Estimated Fair Value	324	535
Funds receivable and customer accounts \| Commercial paper
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	3,793
Gross Unrealized Gains	0
Gross Unrealized Losses	(25)
Estimated Fair Value	3,768
Short-term investments \| U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	75	537
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(3)	0
Estimated Fair Value	72	537
Short-term investments \| Foreign government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	480	493
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(13)	(1)
Estimated Fair Value	467	492
Short-term investments \| Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	969	2,285
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(14)	0
Estimated Fair Value	955	2,285
Short-term investments \| Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	522	278
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(9)	(1)
Estimated Fair Value	513	277
Short-term investments \| Commercial paper
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,781
Gross Unrealized Gains	0
Gross Unrealized Losses	(2)
Estimated Fair Value	1,779
Long-Term Investments \| U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	493	568
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(39)	(6)
Estimated Fair Value	454	562
Long-Term Investments \| Foreign government and agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	400	742
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(24)	(6)
Estimated Fair Value	376	736
Long-Term Investments \| Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,076	1,445
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(70)	(11)
Estimated Fair Value	1,006	1,434
Long-Term Investments \| Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Gross Amortized Cost	1,105	817
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(29)	(4)
Estimated Fair Value	$ 1,076	$ 813

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

+ 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

+ 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

+ 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

No definition available.

+ 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: