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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
OPERATING ACTIVITIES    
Net income $ 270 $ 355
Adjustments to reconcile net income to cash provided by (used for) operating activities:    
Gain on sale of investment in affiliate   (85)
Gain on acquisition of controlling interest   (36)
Foreign exchange loss (gain) on debt 49 (49)
Bad debt expense 7 29
Depreciation, depletion and amortization 270 264
Stock-based compensation expense 21 31
Deferred income taxes 35 (108)
Other, net 12  
Changes in operating assets and liabilities, excluding the effects of acquisitions:    
Trade accounts receivable (632) (434)
Inventories (316) (2,513)
Prepayments and advances to suppliers (562) (687)
Trade accounts payable and accrued liabilities 460 186
Net unrealized gain/loss on derivative contracts 55 214
Margin deposits (7) (63)
Other, net (175) 197
Cash provided by (used for) operating activities (513) (2,699)
INVESTING ACTIVITIES    
Payments made for capital expenditures (470) (473)
Acquisitions of businesses (net of cash acquired) (11) (277)
Proceeds from investments 38 40
Payments for investments (29) (19)
Proceeds from sale of investment in affiliate   483
Payments for investments in affiliates (24) (89)
Other, net (32) 52
Cash provided by (used for) investing activities (528) (283)
FINANCING ACTIVITIES    
Net change in short-term debt with maturities of 90 days or less 883 1,618
Proceeds from short-term debt with maturities greater than 90 days 569 369
Repayments of short-term debt with maturities greater than 90 days (377) (367)
Proceeds from long-term debt 3,026 2,761
Repayments of long-term debt (2,748) (1,638)
Proceeds from sale of common shares 12 10
Dividends paid (96) (89)
Other, net (3)  
Cash provided by (used for) financing activities 1,266 2,664
Effect of exchange rate changes on cash and cash equivalents (68) (50)
Net increase (decrease) in cash and cash equivalents 157 (368)
Cash and cash equivalents, beginning of period 569 835
Cash and cash equivalents, end of period $ 726 $ 467