Taxes - Income Tax Assessments (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2021 |
|
| Income tax examination | ||
| Possible additional taxable income based on IRS assessment | $ 4,500 | |
| India Tax Authorities | ||
| Income tax examination | ||
| Prepaid income taxes | $ 727 |