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v3.23.2

Debt and Equity - Additional Information (Details) $ / shares in Units, shares in Millions, $ in Millions |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 19 Months Ended | 24 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 21, 2023 $ / shares | Aug. 03, 2023 USD ($) | Mar. 31, 2023 USD ($) | Apr. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) $ / shares | Jun. 30, 2022 USD ($) $ / shares | Jun. 30, 2023 USD ($) $ / shares | Dec. 31, 2022 USD ($) shares | Jun. 30, 2022 USD ($) $ / shares | Aug. 03, 2023 USD ($) | Jun. 30, 2023 USD ($) $ / shares shares | Oct. 31, 2022 USD ($) | May 31, 2022 USD ($) | Dec. 31, 2019 case
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 9,495 |  | $ 9,495 | $ 10,620 |  |  | $ 9,495 |  |  |
Repayments of debt |  |  |  |  |  |  | 1,806 |  | $ 2,993 |  |  |  |  |
Interest costs |  |  |  |  | 234 | $ 189 | 441 |  | $ 342 |  |  |  |  |
Treasury stock purchases (in shares) | shares |  |  |  |  |  |  |  | 0.0 |  |  | 47.8 |  |  |
Shares repurchased |  |  |  |  |  |  |  |  |  |  | $ 1,800 |  |  |
Cost per share repurchased (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 38.35 |  |  |
Remaining authorized shares repurchase amount |  |  |  |  | $ 3,200 |  | $ 3,200 |  |  |  | $ 3,200 |  |  |
Dividends declared per share of common stock (in dollars per share) | $ / shares | $ 0.15 |  |  |  | $ 0.15 | $ 0.15 | $ 0.30 |  | $ 0.30 |  |  |  |  |
Base cash dividend (in dollars per share) | $ / shares | 0.075 |  |  |  |  |  |  |  |  |  |  |  |  |
Variable cash dividend (in dollars per share) | $ / shares | $ 0.075 |  |  |  |  |  |  |  |  |  |  |  |  |
Tax Matters In Peru, Contingent Liability |  |  |  |  | $ 50 |  | $ 74 |  |  |  |  |  |  |
FCX affiliates | Louisiana Parishes Coastal Erosion Cases |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number | case |  |  |  |  |  |  |  |  |  |  |  |  |  | 42
FCX affiliates | Louisiana Parishes Coastal Erosion Cases | Settled litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number | case |  |  |  |  |  |  |  |  |  |  |  |  |  | 13
Unsecured Credit Facility | PT-FI |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in line of credit |  |  |  | $ 1,300 |  |  |  |  |  |  |  |  |  |
Unsecured Credit Facility | Cerro Verde |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of credit |  |  |  |  | 0 |  | 0 |  |  |  | 0 |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 350 |
Revolving Credit Facility | PT-FI |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of credit |  |  |  |  | 0 |  | 0 |  |  |  | 0 |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest costs capitalized |  |  |  |  | 62 | $ 33 | 119 |  | $ 59 |  |  |  |  |
Line of Credit | Letter of Credit |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of credit |  |  |  |  | 8 |  | 8 |  |  |  | 8 |  |  |
Revolving credit facility, availability |  |  |  |  |  |  |  |  |  |  |  | $ 1,500 |  |
Line of Credit | Revolving Credit Facility | October 2022 Unsecured Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | 3,000 |  |
Line of Credit | Revolving Credit Facility | PT-FI | October 2022 Unsecured Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 500 |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchased senior notes |  |  |  |  | 131 |  | 131 |  |  |  |  |  |  |
Senior Notes | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative repurchased principal amount |  |  |  |  |  |  |  |  |  | $ 1,300 |  |  |  |
Cumulative repurchase cost |  |  |  |  |  |  |  |  |  | $ 1,200 |  |  |  |
Repurchased senior notes |  | $ 103 |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes | PT-FI |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 2,979 |  | $ 2,979 | $ 2,978 |  |  | $ 2,979 |  |  |
Repayments of debt |  |  | $ 996 |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  | 3.875% |  |  |  |  |  |  |  |  |  |  |

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