Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2019

Supplemental Cash Flow Information [Abstract]

Schedule of cash flows, supplemental disclosures

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

	Three Months Ended March 31, 2019
	Operating Leases			Finance Leases
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows	$	107		$	11
Financing cash flows	—			6
ROU assets obtained in exchange for new lease liabilities (a)	1,430			2
Changes in lease balances resulting from lease modifications	(26		)	—

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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.

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):

	Three Months Ended March 31,
	2019			2018
Decrease (increase) in current assets:
Receivables, net	$	(895	)	$	145
Inventories	28			(126		)
Prepaid expenses and other	16			(79		)
Increase (decrease) in current liabilities:
Accounts payable	1,400			(322		)
Accrued expenses	(167		)	(131		)
Taxes other than income taxes payable	(263		)	(111		)
Income taxes payable	11			(402		)
Changes in current assets and current liabilities	$	130		$	(1,026	)

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

	Three Months Ended March 31,
	2019		2018
Interest paid in excess of amount capitalized, including interest on finance leases	$	96	$	127
Income taxes paid, net	59		552