Debt and Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions	1 Months Ended	3 Months Ended		41 Months Ended
	Apr. 30, 2025	Mar. 31, 2025	Mar. 31, 2024	Apr. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Interest costs		$ 174,000,000	$ 175,000,000
Interest costs capitalized		$ 104,000,000	$ 86,000,000
Treasury stock purchases (in shares)		1.4
Shares repurchased		$ 55,000,000
Cost per share repurchased (in dollars per share)		$ 39.10
Dividends declared per share of common stock (in dollars per share)		0.15	$ 0.15
Base cash dividend (in dollars per share)		0.075
Variable cash dividend (in dollars per share)		$ 0.075
Subsequent event
Debt Instrument [Line Items]
Treasury stock purchases (in shares)	0.8
Cost per share repurchased (in dollars per share)	$ 29.48
Stock repurchase program, authorized amount	$ 3,000,000,000			$ 3,000,000,000
Common Stock, Shares, Outstanding	1,400.0			1,400.0
Subsequent event | Share Repurchase Program
Debt Instrument [Line Items]
Treasury stock purchases (in shares)				51.0
Cost per share repurchased (in dollars per share)				$ 38.50
Line of Credit | Revolving Credit Facility | October 2022 Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 3,000,000,000.0
Line of credit		0
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		500,000,000
Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Revolving credit facility, availability		1,500,000,000
Line of credit		5,000,000
Line of Credit | Unsecured Credit Facility | PT-FI
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		1,750,000,000
Line of credit		250,000,000			$ 250,000,000
Line of Credit | Unsecured Credit Facility | Cerro Verde
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		350,000,000
Line of credit		$ 0