Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
OPERATING ACTIVITIES:
Net income (loss)	$ 762	$ (518)
Adjustments to reconcile to net cash provided (used) by operating activities:
Depreciation and amortization	875	891
Provision (benefit) for deferred income taxes	91	(142)
Net (gain) loss on disposition of equity-method investments	(269)	0
Impairment of equity-method investments	0	112
Impairment of and net (gain) loss on sale of assets and businesses	18	803
Amortization of stock-based awards	44	34
Cash provided (used) by changes in current assets and liabilities:
Accounts and notes receivable	201	290
Inventories	(30)	(3)
Other current assets and deferred charges	(17)	(21)
Accounts payable	29	13
Accrued liabilities	(177)	(23)
Other, including changes in noncurrent assets and liabilities	(259)	33
Net cash provided (used) by operating activities	1,268	1,469
FINANCING ACTIVITIES:
Proceeds from (payments of) commercial paper – net	(93)	(304)
Proceeds from long-term debt	2,643	4,503
Payments of long-term debt	(2,710)	(3,301)
Proceeds from issuance of common stock	2,125	6
Dividends paid	(496)	(961)
Dividends and distributions paid to noncontrolling interests	(447)	(478)
Contributions from noncontrolling interests	10	22
Payments for debt issuance costs	(13)	(8)
Contribution to Gulfstream for repayment of debt	0	(148)
Other – net	(29)	(5)
Net cash provided (used) by financing activities	990	(674)
INVESTING ACTIVITIES:
Capital expenditures (1)	(1,056)	(1,069)
Dispositions – net	(14)	31
Proceeds from dispositions of equity-method investments	200	0
Purchases of and contributions to equity-method investments	(79)	(122)
Distributions from unconsolidated affiliates in excess of cumulative earnings	258	261
Other – net	181	153
Net cash provided (used) by investing activities	(510)	(746)
Increase (decrease) in cash and cash equivalents	1,748	49
Cash and cash equivalents held for sale	0	(14)
Cash and cash equivalents at beginning of year	170	100
Cash and cash equivalents at end of period	1,918	135
(1) Increases to property, plant, and equipment	(1,160)	(1,020)
Changes in related accounts payable and accrued liabilities	104	(49)
Capital expenditures (1)	$ (1,056)	$ (1,069)