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INCOME TAXES: - Provision (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
U.S. federal and state: |  |  |
Current | $ 0.1 |  |
Provision for income taxes | 0.1 |  |
Foreign (Peru and Mexico): |  |  |
Current | 1,443.1 | $ 2,425.5 | $ 1,237.9
Deferred | 118.6 | (126.3) | (63.5)
Uncertain tax position | 34.3 |  |
Provision for income taxes | 1,596.0 | 2,299.2 | 1,174.4
Total income tax provision | 1,596.1 | 2,299.2 | 1,174.4
Earnings by location: |  |  |
U.S. | 0.5 | (32.4) | (15.3)
Peru | 1,167.8 | 1,962.8 | 723.9
Mexico | 3,079.5 | 3,766.4 | 2,037.2
Foreign | 4,247.3 | 5,729.2 | 2,761.1
Income before income taxes | $ 4,247.8 | $ 5,696.8 | $ 2,745.8

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