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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2018
Supplemental Cash Flow Information [Abstract] |
Schedule of cash flows, supplemental disclosures | 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,
| 2018 |  | 2017
Decrease (increase) in current assets: |  |  |
Receivables, net | $ | (1,307 | ) |  | $ | 74 |
Inventories | (1,134 | ) |  | (285 | )
Prepaid expenses and other | (65 | ) |  | 138 |
Increase (decrease) in current liabilities: |  |  |
Accounts payable | 1,890 |  |  | 227 |
Accrued expenses | (168 | ) |  | 121 |
Taxes other than income taxes payable | (32 | ) |  | 78 |
Income taxes payable | (358 | ) |  | 191 |
Changes in current assets and current liabilities | $ | (1,174 | ) |  | $ | 544 |
Cash flows related to interest and income taxes were as follows (in millions):
| Nine Months Ended September 30,
| 2018 |  | 2017
Interest paid in excess of amount capitalized | $ | 344 |  |  | $ | 356 |
Income taxes paid, net | 1,116 |  |  | 357 |

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