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Cash And Cash Equivalents Net Change in Operating Assets and Liabilities (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Accounts receivable $ (1,946) $ 2,084
Accounts receivable from related companies (40) 111
Inventories 234 (180)
Other current assets (48) 146
Other non-current assets, net (12) (226)
Accounts payable 2,207 (2,108)
Accounts payable to related companies (24) (8)
Accrued and other current liabilities 326 (116)
Other non-current liabilities 84 66
Derivative assets and liabilities, net (120) 190
Net change in operating assets and liabilities, net of effects of acquisitions $ (661) $ 41