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FINANCING: (Details) $ in Millions | 12 Months Ended | 89 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) item grade | Nov. 30, 2012 USD ($) item | Dec. 31, 2021 USD ($) | Sep. 26, 2019 USD ($)
FINANCING |  |  |  |
Face amount | $ 6,351.2 | $ 6,200.0 | $ 6,651.2 |
Issuance discount | (63.4) |  | (65.6) |
Issuance costs | (36.6) |  | (38.0) |
Long-term debt, Carrying Value | 6,251.2 |  | 6,547.6 |
Less, current portion |  |  | 299.7 |
Long-term debt, net of current portion | $ 6,251.2 |  | 6,247.9 |
Number of times for which senior unsecured notes were issued | item |  | 8 |  |
Percentage of principal amount at which notes may be required to be repurchased in event of change of control in the entity | 101.00% |  |  |
Minimum |  |  |  |
FINANCING |  |  |  |
Number of decreased gradations that could cause a change of control triggering event | grade | 1 |  |  |
3.500% Senior unsecured notes due 2022 |  |  |  |
FINANCING |  |  |  |
Face amount |  |  | 300.0 |
Issuance discount |  |  | (0.1) |
Issuance costs |  |  | (0.2) |
Long-term debt, Carrying Value |  |  | $ 299.7 |
Interest rate (as a percent) |  |  | 3.50% |
3.875% Senior unsecured notes due 2025 |  |  |  |
FINANCING |  |  |  |
Face amount | $ 500.0 |  | $ 500.0 |
Issuance discount | (0.7) |  | (1.0) |
Issuance costs | (0.7) |  | (1.0) |
Long-term debt, Carrying Value | $ 498.6 |  | $ 498.0 |
Interest rate (as a percent) | 3.875% |  | 3.875% |
9.250% Yankee Bonds due 2028 |  |  |  |
FINANCING |  |  |  |
Face amount | $ 51.2 |  | $ 51.2 |
Long-term debt, Carrying Value | $ 51.2 |  | $ 51.2 |
Interest rate (as a percent) | 9.25% |  | 9.25% |
9.250% Yankee Bonds due 2028 | Minera Mexico | Minimum |  |  |  |
FINANCING |  |  |  |
Ratio of EBITDA to interest expense | item | 2.5 |  |  |
7.500% Senior unsecured notes due 2035 |  |  |  |
FINANCING |  |  |  |
Face amount | $ 1,000.0 |  | $ 1,000.0 |
Issuance discount | (11.0) |  | (11.6) |
Issuance costs | (7.3) |  | (7.6) |
Long-term debt, Carrying Value | $ 981.7 |  | $ 980.8 |
Interest rate (as a percent) | 7.50% |  | 7.50% |
6.750% Senior unsecured notes due 2040 |  |  |  |
FINANCING |  |  |  |
Face amount | $ 1,100.0 |  | $ 1,100.0 |
Issuance discount | (6.6) |  | (6.7) |
Issuance costs | (5.2) |  | (5.4) |
Long-term debt, Carrying Value | $ 1,088.2 |  | $ 1,087.9 |
Interest rate (as a percent) | 6.75% |  | 6.75% |
5.250% Senior unsecured notes due 2042 |  |  |  |
FINANCING |  |  |  |
Face amount | $ 1,200.0 |  | $ 1,200.0 |
Issuance discount | (17.6) |  | (18.1) |
Issuance costs | (5.9) |  | (6.0) |
Long-term debt, Carrying Value | $ 1,176.5 |  | $ 1,175.9 |
Interest rate (as a percent) | 5.25% |  | 5.25% |
5.875% Senior unsecured notes due 2045 |  |  |  |
FINANCING |  |  |  |
Face amount | $ 1,500.0 |  | $ 1,500.0 |
Issuance discount | (15.4) |  | (15.8) |
Issuance costs | (8.2) |  | (8.3) |
Long-term debt, Carrying Value | $ 1,476.4 |  | $ 1,475.9 |
Interest rate (as a percent) | 5.875% |  | 5.875% |
4.500% Minera Mexico Senior unsecured notes due 2050 |  |  |  |
FINANCING |  |  |  |
Face amount | $ 1,000.0 |  | $ 1,000.0 |
Issuance discount | (12.1) |  | (12.3) |
Issuance costs | (9.3) |  | (9.5) |
Long-term debt, Carrying Value | $ 978.6 |  | $ 978.2 |
Interest rate (as a percent) | 4.50% |  | 4.50% |
4.500% Minera Mexico Senior unsecured notes due 2050 | Minera Mexico S.A. de C.V. Notes |  |  |  |
FINANCING |  |  |  |
Face amount |  |  |  | $ 1,000.0
Issuance discount |  |  |  | (12.7)
Issuance costs |  |  |  | $ (9.8)
Interest rate (as a percent) |  |  |  | 4.50%

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