v3.25.4
Financial Instruments - Equity Investments with Readily Determinable Fair Values (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values $ 2,986 $ 3,183
Affirm Holdings, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 1,511 1,236
Global-E Online Ltd.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 868 1,205
Klaviyo, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 599 742
Transfers out of level 3 $ 42 $ 37
Klaviyo, Inc. | Discount for Lack of Marketability    
Debt and Equity Securities, FV-NI [Line Items]    
Warrant, measurement input 0.11 0.18
Other    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values $ 8 $ 0
Level 1    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 2,916 3,056
Level 1 | Affirm Holdings, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 1,511 1,236
Level 1 | Global-E Online Ltd.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 868 1,205
Level 1 | Klaviyo, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 529 615
Level 1 | Other    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 8 0
Level 3    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 70 127
Level 3 | Affirm Holdings, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 0 0
Level 3 | Global-E Online Ltd.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 0 0
Level 3 | Klaviyo, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 70 127
Level 3 | Other    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values $ 0 $ 0