v2.3.0.15
Supplemental Information To Statements Of Cash Flows (Details) (USD $)
In Millions
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Net (increase) decrease in working capital:  
(Increase) decrease in accounts receivable$ (118)$ 185
(Increase) decrease in other current assets(149)11
Increase in accounts payable5849
Increase in revenues and royalties due to others12129
Decrease in other current liabilities(220)(110)
Net (increase) decrease in working capital(308)164
Supplementary cash flow data - total operations:  
Interest paid (net of capitalized interest)298338
Income taxes (received) paid$ (113)$ 745