Income Taxes - Uncertain Tax Positions (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
Balance at January 1, | $ 1,343 | $ 1,230 | $ 1,210 |
(Decrease) / Increase due to prior year positions | 8 | 21 | |
(Decrease) due to prior year tax positions | (26) | ||
Increase due to current year positions | 107 | 137 | 31 |
Reduction related to settlements with taxing authorities | (13) | (4) | (15) |
Reduction related to lapse of applicable statute of limitations | (12) | (28) | (17) |
Balance at December 31, | 1,399 | 1,343 | 1,230 |
Liability for net interest expense on uncertain tax positions | $ 220 | $ 176 | $ 148 |