Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
OPERATING ACTIVITIES:
Net income (loss)	$ 193	$ 2,509	$ (350)
Adjustments to reconcile to net cash provided (used) by operating activities:
Depreciation and amortization	1,725	1,736	1,763
Provision (benefit) for deferred income taxes	220	(2,012)	(26)
Equity (earnings) losses	(396)	(434)	(397)
Distributions from unconsolidated affiliates	693	784	742
Net (gain) loss on disposition of equity-method investments	0	(269)	(27)
Impairment of equity-method investments (Note 17)	32	0	430
Gain on sale of certain assets (Note 3)	(692)	(1,095)	0
Impairment of and net (gain) loss on sale of other assets and businesses (Note 17)	1,915	1,249	918
Gain on deconsolidation of businesses (Note 6)	(203)	0	0
Amortization of stock-based awards	55	78	73
Regulatory charges resulting from Tax Reform (Note 1)	(15)	776	0
Cash provided (used) by changes in current assets and liabilities:
Accounts and notes receivable	(36)	(88)	82
Inventories	(16)	8	(25)
Other current assets and deferred charges	17	(21)	(4)
Accounts payable	(93)	118	35
Accrued liabilities	23	(92)	512
Other, including changes in noncurrent assets and liabilities	(129)	(158)	429
Net cash provided (used) by operating activities	3,293	3,089	4,155
FINANCING ACTIVITIES:
Proceeds from (payments of) commercial paper – net	(2)	(93)	(409)
Proceeds from long-term debt	3,926	3,333	6,528
Payments of long-term debt	(3,204)	(5,925)	(7,091)
Proceeds from issuance of common stock	15	2,131	9
Proceeds from sale of limited partner units of consolidated partnership	0	0	114
Common dividends paid	(1,386)	(992)	(1,261)
Dividends and distributions paid to noncontrolling interests	(591)	(822)	(940)
Contributions from noncontrolling interests	15	17	29
Payments for debt issuance costs	(26)	(17)	(9)
Contribution to Gulfstream for repayment of debt	0	0	(148)
Other – net	(46)	(92)	(16)
Net cash provided (used) by financing activities	(1,299)	(2,460)	(3,194)
INVESTING ACTIVITIES:
Capital expenditures	(3,256)	(2,399)	(2,051)
Dispositions – net	(7)	(41)	30
Contributions in aid of construction	411	426	218
Proceeds from sale of businesses, net of cash divested	1,296	2,067	1,020
Proceeds from dispositions of equity-method investments	0	200	34
Purchases of and contributions to equity-method investments	(1,132)	(132)	(177)
Other – net	(37)	(21)	35
Net cash provided (used) by investing activities	(2,725)	100	(891)
Increase (decrease) in cash and cash equivalents	(731)	729	70
Cash and cash equivalents at beginning of year	899	170	100
Cash and cash equivalents at end of year	168	899	170
(1) Increases to property, plant, and equipment	(3,021)	(2,662)	(1,912)
Changes in related accounts payable and accrued liabilities	(235)	263	(139)
Capital expenditures	$ (3,256)	$ (2,399)	$ (2,051)