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v3.20.4

FINANCING: (Tables) | 12 Months Ended
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Dec. 31, 2020
FINANCING: |
Schedule of long-term debt | Long-term debt (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Carrying
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | value as of
​ | ​ | Face | ​ | Issuance | ​ | Issuance | ​ | December 31,
​ |  | amount |  | discount |  | costs |  | 2020
3.500% Senior unsecured notes due 2022 |  | $ | 300 | ​ | ​ | (0.2) | ​ | $ | (0.3) | ​ | $ | 299.5
3.875% Senior unsecured notes due 2025 |  |  | 500 | ​ | ​ | (1.3) | ​ | ​ | (1.2) | ​ |  | 497.5
9.250% Yankee bonds due 2028 |  |  | 51.2 | ​ | ​ | — | ​ | ​ | — | ​ |  | 51.2
7.500% Senior unsecured notes due 2035 |  |  | 1,000 | ​ | ​ | (12.0) | ​ | ​ | (8.0) | ​ |  | 980.0
6.750% Senior unsecured notes due 2040 | ​ | ​ | 1,100 | ​ | ​ | (6.9) | ​ | ​ | (5.6) | ​ | ​ | 1,087.5
5.250% Senior unsecured notes due 2042 |  |  | 1,200 | ​ | ​ | (18.6) | ​ | ​ | (6.2) | ​ |  | 1,175.2
5.875% Senior unsecured notes due 2045 |  |  | 1,500 | ​ | ​ | (16.1) | ​ | ​ | (8.5) | ​ | ​ | 1,475.4
4.500% Minera Mexico Senior unsecured notes due 2050 | ​ | ​ | 1,000 | ​ | ​ | (12.5) | ​ | ​ | (9.6) | ​ |  | 977.9
Total | ​ | $ | 6,651.2 | ​ | $ | (67.6) | ​ | $ | (39.4) | ​ |  | 6,544.2
Less, current portion | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | —
Total long-term debt | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 6,544.2
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | ​ | ​ |  | Carrying
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | value as of
​ | ​ | Face | ​ | Issuance | ​ | Issuance | ​ | December 31,
​ | ​ | amount | ​ | discount | ​ | costs | ​ | 2019
5.375% Senior unsecured notes due 2020 | ​ | $ | 400 | ​ | ​ | (0.1) | ​ | $ | (0.1) | ​ | $ | 399.8
3.500% Senior unsecured notes due 2022 | ​ |  | 300 | ​ | ​ | (0.3) | ​ | ​ | (0.5) | ​ |  | 299.2
3.875% Senior unsecured notes due 2025 | ​ |  | 500 | ​ | ​ | (1.6) | ​ | ​ | (1.5) | ​ |  | 496.9
9.250% Yankee bonds due 2028 | ​ |  | 51 | ​ | ​ | — | ​ | ​ | — | ​ |  | 51.2
7.500% Senior unsecured notes due 2035 | ​ |  | 1,000 | ​ | ​ | (12.4) | ​ | ​ | (8.3) | ​ |  | 979.3
6.750% Senior unsecured notes due 2040 | ​ |  | 1,100 | ​ | ​ | (7.1) | ​ | ​ | (5.7) | ​ |  | 1,087.2
5.250% Senior unsecured notes due 2042 | ​ | ​ | 1,200 | ​ | ​ | (19.0) | ​ | ​ | (6.3) | ​ | ​ | 1,174.7
5.875% Senior unsecured notes due 2045 | ​ |  | 1,500 | ​ | ​ | (16.4) | ​ | ​ | (8.6) | ​ |  | 1,475.0
4.500% Minera Mexico Senior unsecured notes due 2050 | ​ |  | 1,000 | ​ | ​ | (12.7) | ​ | ​ | (9.8) | ​ |  | 977.5
Total | ​ | $ | 7,051 | ​ | $ | (69.6) | ​ | $ | (40.8) | ​ |  | 6,940.8
Less, current portion | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (399.8)
Total long-term debt | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 6,541.0
Schedule of aggregate maturities of the outstanding borrowings | ​
​ | ​ | ​ | ​
​ |  | Principal
Years | ​ | Due(*)
​ | ​ | (in millions)
2021 |  | $ | —
2022 | ​ | ​ | 300.0
2023 | ​ |  | —
2024 | ​ |  | —
2025 | ​ | ​ | 500.0
Thereafter | ​ |  | 5,851.2
Total | ​ | $ | 6,651.2
(*)Total debt maturities do not include the debt discount valuation account of $107.0 million.

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