v3.24.0.1
Financial Instruments - Equity Investments with Readily Determinable Fair Values (Details) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values $ 2,360,000,000 $ 648,000,000
Affirm Holdings, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 997,000,000 196,000,000
Global-E Online Ltd.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 874,000,000 451,000,000
Transfers out of level 3 $ 49,000,000 $ 200,000,000
Global-E Online Ltd. | Discount for Lack of Marketability    
Debt and Equity Securities, FV-NI [Line Items]    
Warrant, measurement input 0.08 0.09
Klaviyo, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values $ 489,000,000 $ 0
Transfers out of level 3 $ 11,000,000  
Klaviyo, Inc. | Discount for Lack of Marketability    
Debt and Equity Securities, FV-NI [Line Items]    
Warrant, measurement input 0.21  
Other    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values $ 0 1,000,000
Level 1    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 2,229,000,000 597,000,000
Level 1 | Affirm Holdings, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 997,000,000 196,000,000
Level 1 | Global-E Online Ltd.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 856,000,000 400,000,000
Level 1 | Klaviyo, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 376,000,000 0
Level 1 | Other    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 0 1,000,000
Level 3    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 131,000,000 51,000,000
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 18,000,000 51,000,000
Level 3 | Klaviyo, Inc.    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values 113,000,000 0
Level 3 | Other    
Debt and Equity Securities, FV-NI [Line Items]    
Equity investments with readily determinable fair values $ 0 $ 0