Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2019

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,
	2019			2018
Decrease (increase) in current assets:
Receivables, net	$	(669	)	$	(1,307	)
Inventories	126			(1,134		)
Prepaid expenses and other	373			(65		)
Increase (decrease) in current liabilities:
Accounts payable	914			1,890
Accrued expenses	(92		)	(168		)
Taxes other than income taxes payable	(25		)	(32		)
Income taxes payable	101			(358		)
Changes in current assets and current liabilities	$	728		$	(1,174	)

Cash flows related to interest and income taxes were as follows (in millions):

	Nine Months Ended September 30,
	2019			2018
Interest paid in excess of amount capitalized, including interest on finance leases	$	303		$	344
Income taxes paid (received), net	(184		)	1,116

Supplemental cash flow information related to our operating and finance leases was as follows (in millions):

	Nine Months Ended September 30, 2019
	Operating Leases		Finance Leases
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows	$	329	$	38
Investing cash flows	1		—
Financing cash flows	—		24
Changes in lease balances resulting from new and modified leases (a)	1,673		221

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(a) Includes noncash activity of $1.3 billion for ROU assets for operating leases recorded on January 1, 2019 upon adoption of Topic 842.