Income Taxes (Details) - USD ($) $ in Millions |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|---|
Sep. 30, 2025 |
Mar. 31, 2026 |
Sep. 30, 2025 |
Jun. 30, 2026 |
Dec. 31, 2025 |
May 22, 2025 |
|
| Income Tax Contingency [Line Items] | ||||||
| Unrecognized tax benefits | $ 18,740 | $ 16,450 | ||||
| Unrecognized tax benefits that would result in tax benefit if realized | 12,730 | |||||
| Accrued interest and penalties | $ 2,970 | $ 2,600 | ||||
| Effective income tax rate reconciliation, percent | (5.00%) | |||||
| Discrete charge (benefit) related to new legislation | $ (8,030) | $ 15,930 | ||||
| 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 | |||||
| Income tax examination, estimate of possible loss | $ 15,890 | |||||