v3.26.1
Financial Instruments - Equity Investments with Readily Determinable Fair Values (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values $ 2,703   $ 2,703   $ 2,986
Affirm Holdings, Inc.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 1,655   1,655   1,511
Global-E Online Ltd.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 768   768   868
Klaviyo, Inc.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 280   280   $ 599
Transfers out of level 3 $ 6 $ 9 $ 17 $ 14  
Klaviyo, Inc. | Discount for Lack of Marketability          
Debt and Equity Securities, FV-NI [Line Items]          
Warrant, measurement input 0.09   0.09   0.11
Other          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values $ 0   $ 0   $ 8
Level 1          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 2,679   2,679   2,916
Level 1 | Affirm Holdings, Inc.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 1,655   1,655   1,511
Level 1 | Global-E Online Ltd.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 768   768   868
Level 1 | Klaviyo, Inc.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 256   256   529
Level 1 | Other          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 0   0   8
Level 3          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 24   24   70
Level 3 | Affirm Holdings, Inc.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 0   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   0
Level 3 | Klaviyo, Inc.          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values 24   24   70
Level 3 | Other          
Debt and Equity Securities, FV-NI [Line Items]          
Equity investments with readily determinable fair values $ 0   $ 0   $ 0