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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2017
Supplemental Cash Flow Information [Abstract] |
Schedule of cash flows, supplemental disclosures | Cash flows related to interest and income taxes were as follows (in millions):
| Nine Months Ended September 30,
| 2017 |  | 2016
Interest paid in excess of amount capitalized | $ | 356 |  |  | $ | 312 |
Income taxes paid, net | 357 |  |  | 305 |
In order to determine net cash provided by operating activities, net income is adjusted by, among other things, changes in current assets and current liabilities as follows (in millions):
| Nine Months Ended September 30,
| 2017 |  | 2016
Decrease (increase) in current assets: |  |  |
Receivables, net | $ | 74 |  |  | $ | (278 | )
Inventories | (285 | ) |  | 557 |
Prepaid expenses and other | 138 |  |  | 137 |
Increase (decrease) in current liabilities: |  |  |
Accounts payable | 227 |  |  | 494 |
Accrued expenses | 121 |  |  | 46 |
Taxes other than income taxes payable | 78 |  |  | 8 |
Income taxes payable | 191 |  |  | (11 | )
Changes in current assets and current liabilities | $ | 544 |  |  | $ | 953 |

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