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Non-current assets and liabilities held for sales and discontinued operations - Reclassification of cumulative translation adjustments - Cash flows of discontinued operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating activities      
Loss before income taxes $ 29,541 $ 6,990 $ (156)
Adjustments:      
Net cash provided by (used in) operating activities (316) (1,055) (637)
Investing activities      
Net cash used in investing activities (2,469) (129) (113)
Financing activities      
Net cash used in financing activities (13) (15) (14)
Discontinued operations      
Operating activities      
Loss before income taxes (3,197) (2,021) (2,619)
Discontinued operations | Australia      
Operating activities      
Loss before income taxes (3,197) (2,021) (2,619)
Adjustments:      
Equity results in associates and joint ventures 26 43 25
Depreciation, amortization and depletion 69 19 237
Impairment and disposals of non-current assets 3,282 935 1,691
Financial Results, net (447) (2) 20
Increase (decrease) in assets and liabilities (49) (29) 9
Net cash provided by (used in) operating activities (316) (1,055) (637)
Investing activities      
Additions to property, plant, and equipment (194) (203) (240)
Acquisition of NLC, net of cash (2,345)    
Others 70 74 127
Net cash used in investing activities (2,469) (129) (113)
Financing activities      
Payments (13) (15) (14)
Net cash used in financing activities (13) (15) (14)
Net cash used in discontinued operations $ (2,798) $ (1,199) $ (764)