Schedule I Condensed Financial Information of Registrant (Tables)

12 Months Ended

Dec. 31, 2016

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Income Statement [Table Text Block]

The Williams Companies, Inc.

Schedule I — Condensed Financial Information of Registrant

Statement of Comprehensive Income (Loss) (Parent)

	Years Ended December 31,
	2016			2015			2014
	(Millions, except per-share amounts)
Equity in earnings of consolidated subsidiaries	$	522		$	232		$	1,799
Equity earnings (losses) from investment in Access Midstream Partners	—			—			(7		)
Interest incurred — external	(268		)	(255		)	(206		)
Interest incurred — affiliate	(568		)	(828		)	(797		)
Interest income — affiliate	—			6			10
Gain on remeasurement of equity-method investment	—			—			2,544
Other income (expense) — net	(53		)	(75		)	(13		)
Income (loss) from continuing operations before income taxes	(367		)	(920		)	3,330
Provision (benefit) for income taxes	57			(349		)	1,220
Income (loss) from continuing operations	(424		)	(571		)	2,110
Income (loss) from discontinued operations	—			—			4
Net income (loss)	$	(424	)	$	(571	)	$	2,114
Basic earnings (loss) per common share:
Income (loss) from continuing operations	$	(.57	)	$	(.76	)	$	2.93
Income (loss) from discontinued operations	—			—			.01
Net income (loss)	$	(.57	)	$	(.76	)	$	2.94
Weighted-average shares (thousands)	750,673			749,271			719,325
Diluted earnings (loss) per common share:
Income (loss) from continuing operations	$	(.57	)	$	(.76	)	$	2.91
Income (loss) from discontinued operations	—			—			.01
Net income (loss)	$	(.57	)	$	(.76	)	$	2.92
Weighted-average shares (thousands)	750,673			749,271			723,641
Other comprehensive income (loss):
Equity in other comprehensive income (loss) of consolidated subsidiaries	$	171		$	(204	)	$	(96	)
Other comprehensive income (loss) attributable to The Williams Companies, Inc.	1			33			(80		)
Other comprehensive income (loss)	172			(171		)	(176		)
Less: Other comprehensive income (loss) attributable to noncontrolling interests	69			(70		)	(19		)
Comprehensive income (loss) attributable to The Williams Companies, Inc.	$	(321	)	$	(672	)	$	1,957

See accompanying notes.

Condensed Balance Sheet [Table Text Block]

The Williams Companies, Inc.

Schedule I — Condensed Financial Information of Registrant – (Continued)

Balance Sheet (Parent)

	December 31,
	2016		2015
	(Millions)
ASSETS
Current assets:
Cash and cash equivalents	$	14	$	12
Other current assets and deferred charges	16		62
Total current assets	30		74
Investments in and advances to consolidated subsidiaries	22,359		30,927
Property, plant, and equipment — net	77		99
Other noncurrent assets	8		12
Total assets	$	22,474	$	31,112
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	27	$	27
Other current liabilities	169		163
Total current liabilities	196		190
Long-term debt	4,939		4,811
Notes payable — affiliates	8,171		15,506
Pension, other postretirement, and other noncurrent liabilities	287		336
Deferred income tax liabilities	4,238		4,121
Contingent liabilities and commitments
Equity:
Common stock	785		784
Other stockholders’ equity	3,858		5,364
Total stockholders’ equity	4,643		6,148
Total liabilities and stockholders’ equity	$	22,474	$	31,112

See accompanying notes.

Condensed Cash Flow Statement [Table Text Block]

The Williams Companies, Inc.

Schedule I — Condensed Financial Information of Registrant – (Continued)

Statement of Cash Flows (Parent)

	Years Ended December 31,
	2016			2015			2014
	(Millions)
NET CASH FLOWS PROVIDED (USED) BY OPERATING ACTIVITIES	$	(833	)	$	(1,209	)	$	(500	)
FINANCING ACTIVITIES:
Proceeds from long-term debt	2,280			2,097			2,935
Payments of long-term debt	(2,155		)	(1,817		)	(671		)
Changes in notes payable to affiliates	9			2,211			2,465
Tax benefit of stock-based awards	—			—			25
Proceeds from issuance of common stock	9			27			3,416
Dividends paid	(1,261		)	(1,836		)	(1,412		)
Other — net	—			(2		)	(17		)
Net cash provided (used) by financing activities	(1,118		)	680			6,741
INVESTING ACTIVITIES:
Capital expenditures	(13		)	(29		)	(54		)
Purchase of Access Midstream Partners	—			—			(5,995		)
Changes in investments in and advances to consolidated subsidiaries	1,966			521			(450		)
Other — net	—			—			25
Net cash provided (used) by investing activities	1,953			492			(6,474		)
Increase (decrease) in cash and cash equivalents	2			(37		)	(233		)
Cash and cash equivalents at beginning of year	12			49			282
Cash and cash equivalents at end of year	$	14		$	12		$	49

See accompanying notes.