v3.26.1
CASH AND CASH EQUIVALENTS, FUNDS RECEIVABLE AND CUSTOMER ACCOUNTS, AND INVESTMENTS - Schedule of Available-for-sale Debt Securities in Continuous Loss Position (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value    
Less than 12 months $ 8,516 $ 5,505
12 months or longer 211 426
Total 8,727 5,931
Gross Unrealized Losses    
Less than 12 months (4) (4)
12 months or longer (1) (1)
Total (5) (5)
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments | U.S. government and agency securities    
Fair Value    
Less than 12 months 310  
12 months or longer 0  
Total 310  
Gross Unrealized Losses    
Less than 12 months 0  
12 months or longer 0  
Total 0  
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments | Foreign government and agency securities    
Fair Value    
Less than 12 months   25
12 months or longer   0
Total   25
Gross Unrealized Losses    
Less than 12 months   0
12 months or longer   0
Total   0
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments | Corporate debt securities    
Fair Value    
Less than 12 months 222 20
12 months or longer 0 0
Total 222 20
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total 0 0
Balance Sheet Location [Axis]: us-gaap:LongTermInvestments | Mortgage-backed and asset-backed securities    
Fair Value    
Less than 12 months 331 368
12 months or longer 5 35
Total 336 403
Gross Unrealized Losses    
Less than 12 months 0 (1)
12 months or longer 0 0
Total 0 (1)
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments | U.S. government and agency securities    
Fair Value    
Less than 12 months 50 443
12 months or longer 0 0
Total 50 443
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total 0 0
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments | Foreign government and agency securities    
Fair Value    
Less than 12 months 25 0
12 months or longer 0 20
Total 25 20
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total 0 0
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments | Corporate debt securities    
Fair Value    
Less than 12 months 195 94
12 months or longer 49 109
Total 244 203
Gross Unrealized Losses    
Less than 12 months 0 (1)
12 months or longer (1) (1)
Total (1) (2)
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments | Mortgage-backed and asset-backed securities    
Fair Value    
Less than 12 months 210 354
12 months or longer 35 6
Total 245 360
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total 0 0
Balance Sheet Location [Axis]: us-gaap:ShortTermInvestments | Commercial paper    
Fair Value    
Less than 12 months 996 200
12 months or longer 0 0
Total 996 200
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total 0 0
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts | U.S. government and agency securities    
Fair Value    
Less than 12 months 2,672 1,261
12 months or longer 0 50
Total 2,672 1,311
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total 0 0
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts | Foreign government and agency securities    
Fair Value    
Less than 12 months 50 56
12 months or longer 0 0
Total 50 56
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total 0 0
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts | Corporate debt securities    
Fair Value    
Less than 12 months 587 309
12 months or longer 75 0
Total 662 309
Gross Unrealized Losses    
Less than 12 months (1) (1)
12 months or longer 0 0
Total (1) (1)
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts | Mortgage-backed and asset-backed securities    
Fair Value    
Less than 12 months 1,723 1,000
12 months or longer 47 206
Total 1,770 1,206
Gross Unrealized Losses    
Less than 12 months (3) (1)
12 months or longer 0 0
Total (3) (1)
Balance Sheet Location [Axis]: pypl:FundsReceivableAndCustomerAccounts | Commercial paper    
Fair Value    
Less than 12 months 1,145 1,375
12 months or longer 0 0
Total 1,145 1,375
Gross Unrealized Losses    
Less than 12 months 0 0
12 months or longer 0 0
Total $ 0 $ 0