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Income Taxes (Details) - USD ($)
$ in Millions
Jun. 30, 2025
May 22, 2025
Dec. 31, 2024
Income Tax Contingency [Line Items]      
Unrecognized tax benefits $ 16,780   $ 15,130
Unrecognized tax benefits that would result in tax benefit if realized 10,980    
Accrued interest and penalties $ 2,600   $ 2,210
Internal Revenue Service (IRS)      
Income Tax Contingency [Line Items]      
Intangible assets transferred to subsidiary, value   $ 7,790  
Intangible asset transferred to subsidiary, increase in reported value   $ 1,480