Income Taxes (Details Textuals) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Income Tax Disclosure [Abstract] | ||||
| Actual tax rates | 25.50% | 21.30% | 24.40% | 30.40% |
| Unrecognized tax benefits change as a result of potential resolutions of prior years' tax | $ 144 | $ 144 | ||
| Unrecognized tax benefits that, if recognized, could impact effective tax rate | $ 114 | $ 114 | ||