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FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Assets:
Available-for-sale debt securities	$ 2,269	$ 2,421
Marketable equity securities	106	180
Liabilities:
Cash and cash equivalents	8,306	8,049	$ 6,688
Time deposits, current and noncurrent	92	93
Total non-marketable equity securities	1,629	1,724
Portion at Other than Fair Value Measurement
Liabilities:
Cash and cash equivalents	8,300	8,000
U.S. government and agency securities
Assets:
Available-for-sale debt securities	521	400
Foreign government and agency securities
Assets:
Available-for-sale debt securities		50
Corporate debt securities
Assets:
Available-for-sale debt securities	633	650
Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	1,115	1,321
Cash, time deposits and funds receivable
Liabilities:
Funds receivable and customer accounts not measured and recorded at fair value	22,400	23,400
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments
Assets:
Available-for-sale debt securities	2,863	2,285
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	50	443
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	100	60
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Corporate debt securities
Assets:
Available-for-sale debt securities	788	984
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	289	448
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Commercial paper
Assets:
Available-for-sale debt securities	1,636	350
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts
Assets:
Available-for-sale debt securities	17,353	14,457
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	4,787	3,530
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	87	81
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Corporate debt securities
Assets:
Available-for-sale debt securities	2,629	2,441
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	4,489	3,831
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Municipal securities
Assets:
Available-for-sale debt securities	81	98
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Commercial paper
Assets:
Available-for-sale debt securities	4,608	4,230
Fair value, measurements, recurring basis
Assets:
Derivatives	148	20
Marketable equity securities	106	180
Total financial assets	22,800	19,741
Liabilities:
Derivatives	52	158
Fair value, measurements, recurring basis \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	521	400
Fair value, measurements, recurring basis \| Foreign government and agency securities
Assets:
Available-for-sale debt securities		50
Fair value, measurements, recurring basis \| Corporate debt securities
Assets:
Available-for-sale debt securities	633	650
Fair value, measurements, recurring basis \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	1,115	1,321
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: us-gaap:LongTermInvestments
Assets:
Total long-term investments	2,375	2,601
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments
Assets:
Available-for-sale debt securities	2,863	2,285
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	50	443
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	100	60
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Corporate debt securities
Assets:
Available-for-sale debt securities	788	984
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	289	448
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Commercial paper
Assets:
Available-for-sale debt securities	1,636	350
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts
Assets:
Available-for-sale debt securities	17,365	14,831
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	4,787	3,530
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	336	371
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Corporate debt securities
Assets:
Available-for-sale debt securities	3,064	2,736
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	4,489	3,831
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Municipal securities
Assets:
Available-for-sale debt securities	81	98
Fair value, measurements, recurring basis \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Commercial paper
Assets:
Available-for-sale debt securities	4,608	4,265
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Derivatives	0	0
Marketable equity securities	106	180
Total financial assets	155	184
Liabilities:
Derivatives	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Foreign government and agency securities
Assets:
Available-for-sale debt securities		0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Corporate debt securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: us-gaap:LongTermInvestments
Assets:
Total long-term investments	106	180
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Corporate debt securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Commercial paper
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Corporate debt securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Municipal securities
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Commercial paper
Assets:
Available-for-sale debt securities	0	0
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2)
Assets:
Derivatives	148	20
Marketable equity securities	0	0
Total financial assets	22,645	19,557
Liabilities:
Derivatives	52	158
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	521	400
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Foreign government and agency securities
Assets:
Available-for-sale debt securities		50
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Corporate debt securities
Assets:
Available-for-sale debt securities	633	650
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	1,115	1,321
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: us-gaap:LongTermInvestments
Assets:
Total long-term investments	2,269	2,421
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments
Assets:
Available-for-sale debt securities	2,863	2,285
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	50	443
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	100	60
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Corporate debt securities
Assets:
Available-for-sale debt securities	788	984
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	289	448
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments \| Commercial paper
Assets:
Available-for-sale debt securities	1,636	350
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts
Assets:
Available-for-sale debt securities	17,365	14,831
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| U.S. government and agency securities
Assets:
Available-for-sale debt securities	4,787	3,530
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Foreign government and agency securities
Assets:
Available-for-sale debt securities	336	371
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Corporate debt securities
Assets:
Available-for-sale debt securities	3,064	2,736
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Mortgage-backed and asset-backed securities
Assets:
Available-for-sale debt securities	4,489	3,831
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Municipal securities
Assets:
Available-for-sale debt securities	81	98
Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2) \| Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts \| Commercial paper
Assets:
Available-for-sale debt securities	4,608	4,265
Money market fund \| Fair value, measurements, recurring basis
Assets:
Cash and cash equivalents	49	4
Money market fund \| Fair value, measurements, recurring basis \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Cash and cash equivalents	49	4
Money market fund \| Fair value, measurements, recurring basis \| Significant Other Observable Inputs (Level 2)
Assets:
Cash and cash equivalents	$ 0	$ 0