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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
OPERATING ACTIVITIES    
Net income (loss) $ 48 $ 232
Adjustments to reconcile net income (loss) to cash provided by (used for) operating activities:    
Foreign exchange loss (gain) on debt 14 78
Bad debt expense 11 11
Depreciation, depletion and amortization 130 113
Share-based compensation expense 10 13
Deferred income tax expense (benefit) (12) 32
Other, net 15 12
Changes in operating assets and liabilities, excluding the effects of acquisitions:    
Trade accounts receivable 27 (301)
Inventories (252) (222)
Trade accounts payable and accrued liabilities 421 442
Net unrealized gain/loss on derivative contracts (259) (410)
Margin deposits (83) 100
Other, net (117) (23)
Cash provided by (used for) operating activities (47) 77
INVESTING ACTIVITIES    
Payments made for capital expenditures (182) (110)
Acquisitions of businesses (net of cash acquired) (367)  
Proceeds from investments 59 158
Payments for investments (65) (251)
Payments for investments in affiliates (45) (11)
Other, net (7) 2
Cash provided by (used for) investing activities (607) (212)
FINANCING ACTIVITIES    
Net change in short-term debt with maturities of 90 days or less 170 152
Proceeds from short-term debt with maturities greater than 90 days 108 89
Repayments of short-term debt with maturities greater than 90 days (50) (56)
Proceeds from long-term debt 1,432 3,094
Repayments of long-term debt (1,258) (2,810)
Proceeds from the exercise of option for common shares 46  
Repurchases of common shares   (181)
Dividends paid (67) (62)
Other, net (5) (7)
Cash provided by (used for) financing activities 376 219
Effect of exchange rate changes on cash and cash equivalents 20 28
Net increase (decrease) in cash and cash equivalents (258) 112
Cash and cash equivalents, beginning of period 934 411
Cash and cash equivalents, end of period $ 676 $ 523