Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
OPERATING ACTIVITIES:
Net income (loss)	$ 2	$ 444
Adjustments to reconcile to net cash provided (used) by operating activities:
Depreciation and amortization	867	838
Provision (benefit) for deferred income taxes	(80)	2
Impairment of equity-method investments	112	0
Impairment of and net (gain) loss on sale of Property, plant, and equipment	405	28
Amortization of stock-based awards	14	16
Cash provided (used) by changes in current assets and liabilities:
Accounts and notes receivable	297	185
Inventories	0	64
Other current assets and deferred charges	(20)	(45)
Accounts payable	24	(38)
Accrued liabilities	58	(14)
Affiliate accounts receivable and payable - net	(44)	42
Other, including changes in noncurrent assets and liabilities	30	(29)
Net cash provided (used) by operating activities	1,665	1,493
FINANCING ACTIVITIES:
Proceeds from (payments of) commercial paper - net	(304)	942
Proceeds from long-term debt	2,938	4,825
Payments of long-term debt	(2,201)	(4,007)
Contributions from general partner	6	4
Distributions to limited partners and general partner	(1,231)	(1,450)
Distributions to noncontrolling interests	(45)	(32)
Contributions from noncontrolling interests	22	57
Contributions from The Williams Companies, Inc. - net	0	20
Payments for debt issuance costs	(8)	(29)
Contribution to Gulfstream for repayment of debt	(148)	0
Other - net	0	14
Net cash provided (used) by financing activities	(971)	344
INVESTING ACTIVITIES:
Capital expenditures (1)	(981)	(1,450)
Net proceeds from dispositions	7	6
Purchases of businesses, net of cash acquired	0	(112)
Purchases of and contributions to equity-method investments	(122)	(483)
Distributions from unconsolidated affiliates in excess of cumulative earnings	261	122
Other - net	153	95
Net cash provided (used) by investing activities	(682)	(1,822)
Increase (decrease) in cash and cash equivalents	12	15
Cash and cash equivalents held for sale	(7)	0
Cash and cash equivalents at beginning of year	96	171
Cash and cash equivalents at end of period	101	186
(1) Increases to property, plant, and equipment	(983)	(1,376)
Changes in related accounts payable and accrued liabilities	2	(74)
Capital expenditures	$ (981)	$ (1,450)