Supplemental Cash Flow Information (Tables)

9 Months Ended

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