XML 106 R48.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2019
Schedule of Significant Accounting Policies [Line Items]                        
Operating Lease, Right-of-Use Asset $ 232               $ 232     $ 243
Metals inventory adjustments 79 $ 41 $ 59           179 $ 4 $ 8  
Total cost of sales                 13,105 13,445 11,980  
Selling, general and administrative expenses                 414 443 477  
Exploration Expense                 104 105 93  
Environmental obligations and shutdown costs                 105 89 244  
Costs and Expenses                 13,311 13,874 12,713  
Operating income (loss) $ 775 $ (38) $ 33 $ 321 $ 316 $ 1,315 $ 1,664 $ 1,459 1,091 4,754 3,690  
Accrued income taxes and timing of other tax payments                 (29) (634) 457  
Net cash provided by (used in) operating activities                 1,482 3,863 4,666  
Foreign currency transaction gains (losses), before tax                 24 14 (5)  
Payments for (Proceeds from) Other Investing Activities                 (12) (97) 17  
Net cash provided by (used in) investing activities                 (2,103) (5,018) (1,321)  
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect                 (2,177) (255) 290  
Other (expense) income, net                 (138) 76 $ (8)  
Copper                        
Schedule of Significant Accounting Policies [Line Items]                        
Metals inventory adjustments                 $ 37      
Percentage of ultimate copper recovery from leach stockpiles                 90.00%      
Percentage of copper ultimately recoverable from newly placed material on active stockpiles extracted during the first year                 80.00%      
PT-FI                        
Schedule of Significant Accounting Policies [Line Items]                        
Ownership percentage of subsidiary 48.76%               48.76%      
Accumulated Other Comprehensive Loss                        
Schedule of Significant Accounting Policies [Line Items]                        
Cumulative Effect of New Accounting Principle in Period of Adoption         $ (79)         $ (79)