Taxes - Unrecognized Tax Benefits Additional Disclosures (Details) - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Taxes | ||||
| Unrecognized tax benefits | $ 8,728 | $ 8,709 | $ 8,568 | $ 7,146 |
| Offsetting tax benefits associated with timing adjustments, potential transfer pricing adjustments, and state income taxes | 537 | |||
| Net unrecognized tax benefit amount that, if recognized, would favorably affect the company's effective tax rate | 8,191 | 8,163 | 7,994 | |
| Interest expense and penalties, net (benefit)/charge recognized | 185 | 125 | $ 117 | |
| Interest and penalties accrued | 956 | $ 935 | ||
| Reasonably possible reduction in unrecognized tax benefits within the next 12 months | $ 168 | |||