INCOME TAXES (Reconciliation of U.S. federal statutory rate to effective tax rate) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amount
U.S. federal statutory tax rate	$ (1,410)	$ (1,608)	$ (377)
Withholding and other impacts on foreign earnings	(673)	(678)	(193)
Effect of foreign rates different than the U.S. federal statutory rate	(314)	(328)	(109)
Percentage depletion	189	221	104
Foreign tax credit limitation	(28)	(11)	28
Uncertain tax positions	(17)	13	(15)
PT-FI historical tax disputes	(8)	(193)	(8)
Valuation allowance	6	221	(210)
State income taxes	(4)	(14)	(2)
Sale of Kisanfu	0	0	(135)
Timok exploration project sale	0	0	53
Cerro Verde historical tax disputes	0	0	(39)
Other items, net	(8)	(111)	(41)
Provision for income taxes	$ (2,267)	$ (2,299)	$ (944)
%
U.S. federal statutory tax rate	(21.00%)	(21.00%)	(21.00%)
Withholding and other impacts on foreign earnings	(10.00%)	(9.00%)	(11.00%)
Effect of foreign rates different than the U.S. federal statutory rate	(5.00%)	(4.00%)	(6.00%)
Percentage deplection	3.00%	3.00%	6.00%
Foreign tax credit limitation	(1.00%)		2.00%
Uncertain tax positions			(1.00%)
PT-FI historical tax disputes	0.00%	(3.00%)	0.00%
Valuation allowance	0.00%	3.00%	(12.00%)
Sale of Kisanfu			(8.00%)
Timok exploration project sale			3.00%
Cerro Verde historical tax disputes			(2.00%)
Other items, net	0.00%	(1.00%)	(3.00%)
Provision for income taxes	(34.00%)	(30.00%)	(53.00%)
PT Rio Tinto
Amount
Valuation allowance	$ 0	$ 189	$ 0
%
Valuation allowance	0.00%	2.00%	0.00%

Effective Income Tax Rate Reconciliation, Foreign Tax Credit Limitation, Amount

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