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Taxes - Summary of Unrecognized Income Tax Benefits and Taxes Other Than on Income (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Changes to company's unrecognized tax benefits |  |  |
Beginning balance | $ 5,323 | $ 5,288 | $ 5,018
Foreign currency effects | (27) | (2) | (1)
Additions based on tax positions taken in current year | 248 | 30 | 194
Additions for tax positions taken in prior years | 265 | 234 | 218
Reductions based on tax positions taken in current year | (104) | 0 | 0
Reductions for tax positions taken in prior years | (251) | (117) | (36)
Settlements with taxing authorities in current year | (2) | (110) | (18)
Reductions as a result of a lapse of the applicable statute of limitations | 0 | 0 | (87)
Ending balance | 5,452 | 5,323 | 5,288
Total taxes other than on income | 4,220 | 4,032 | 3,963
United States |  |  |
Changes to company's unrecognized tax benefits |  |  |
Import duties and other levies | (9) | 10 | 7
Property and other miscellaneous taxes | 818 | 609 | 552
Payroll taxes | 286 | 248 | 302
Taxes on production | 801 | 989 | 628
Total taxes other than on income | 1,896 | 1,856 | 1,489
International |  |  |
Changes to company's unrecognized tax benefits |  |  |
Import duties and other levies | 72 | 63 | 49
Property and other miscellaneous taxes | 2,004 | 1,789 | 2,174
Payroll taxes | 121 | 122 | 113
Taxes on production | 127 | 202 | 138
Total taxes other than on income | $ 2,324 | $ 2,176 | $ 2,474

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