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, 2026	Dec. 31, 2025
Gross Amortized Cost
Total available-for-sale debt securities	$ 21,803	$ 18,904
Gross Unrealized Gains	15	18
Gross Unrealized Losses	(5)	(5)
Estimated Fair Value
Noncurrent	2,269	2,421
Fair Value	21,813	18,917
U.S. government and agency securities
Gross Amortized Cost
Noncurrent	521	400
Estimated Fair Value
Noncurrent	521	400
Foreign government and agency securities
Gross Amortized Cost
Noncurrent		50
Estimated Fair Value
Noncurrent		50
Corporate debt securities
Gross Amortized Cost
Noncurrent	632	648
Estimated Fair Value
Noncurrent	633	650
Mortgage-backed and asset-backed securities
Gross Amortized Cost
Noncurrent	1,114	1,320
Estimated Fair Value
Noncurrent	1,115	1,321
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments \| U.S. government and agency securities
Gross Amortized Cost
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments \| Foreign government and agency securities
Gross Amortized Cost
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments \| Corporate debt securities
Gross Amortized Cost
Gross Unrealized Gains	1	2
Gross Unrealized Losses	0	0
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments \| Mortgage-backed and asset-backed securities
Gross Amortized Cost
Gross Unrealized Gains	1	2
Gross Unrealized Losses	0	(1)
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments
Estimated Fair Value
Available-for-sale debt securities	2,863	2,285
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| U.S. government and agency securities
Gross Amortized Cost
Current	50	443
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	50	443
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Foreign government and agency securities
Gross Amortized Cost
Current	100	60
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	100	60
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Corporate debt securities
Gross Amortized Cost
Current	788	985
Gross Unrealized Gains	1	1
Gross Unrealized Losses	(1)	(2)
Estimated Fair Value
Available-for-sale debt securities	788	984
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Mortgage-backed and asset-backed securities
Gross Amortized Cost
Current	289	448
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	289	448
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Commercial paper
Gross Amortized Cost
Current	1,636	350
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	1,636	350
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts
Estimated Fair Value
Available-for-sale debt securities	17,353	14,457
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| U.S. government and agency securities
Gross Amortized Cost
Current	4,786	3,529
Gross Unrealized Gains	1	1
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	4,787	3,530
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Foreign government and agency securities
Gross Amortized Cost
Current	87	81
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	87	81
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Corporate debt securities
Gross Amortized Cost
Current	2,626	2,438
Gross Unrealized Gains	4	4
Gross Unrealized Losses	(1)	(1)
Estimated Fair Value
Available-for-sale debt securities	2,629	2,441
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Mortgage-backed and asset-backed securities
Gross Amortized Cost
Current	4,486	3,825
Gross Unrealized Gains	6	7
Gross Unrealized Losses	(3)	(1)
Estimated Fair Value
Available-for-sale debt securities	4,489	3,831
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Municipal securities
Gross Amortized Cost
Current	81	98
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	81	98
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Commercial paper
Gross Amortized Cost
Current	4,607	4,229
Gross Unrealized Gains	1	1
Gross Unrealized Losses	0	0
Estimated Fair Value
Available-for-sale debt securities	$ 4,608	$ 4,230

Debt Securities, Available-For-Sale, Excluding Accrued Interest

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
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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).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
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