Schedule I Condensed Financial Information of Parent Company Only (Tables)

12 Months Ended

Dec. 31, 2014

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,
	2014			2013			2012
	(Millions, except per-share amounts)
Equity in earnings of consolidated subsidiaries	$	1,799		$	1,564		$	1,895
Equity earnings (losses) from investment in Access Midstream Partners	(7		)	30			—
Interest incurred — external	(206		)	(156		)	(128		)
Interest incurred — affiliate	(797		)	(722		)	(816		)
Interest income — affiliate	10			71			84
Gain on remeasurement of equity-method investment	2,544			—			—
Other income (expense) — net	(13		)	32			3
Income from continuing operations before income taxes	3,330			819			1,038
Provision for income taxes	1,220			378			315
Income (loss) from continuing operations	2,110			441			723
Income (loss) from discontinued operations	4			(11		)	136
Net income (loss)	$	2,114		$	430		$	859
Basic earnings (loss) per common share:
Income (loss) from continuing operations	$	2.93		$	.65		$	1.17
Income (loss) from discontinued operations	.01			(.02		)	.22
Net income (loss)	$	2.94		$	.63		$	1.39
Weighted-average shares (thousands)	719,325			682,948			619,792
Diluted earnings (loss) per common share:
Income (loss) from continuing operations	2.91			.64			$	1.15
Income (loss) from discontinued operations	.01			(.02		)	.22
Net income (loss)	$	2.92		$	.62		$	1.37
Weighted-average shares (thousands)	723,641			687,185			625,486
Other comprehensive income (loss):
Equity in other comprehensive income (loss) of consolidated subsidiaries	$	(96	)	$	(41	)	$	21
Other comprehensive income (loss) attributable to The Williams Companies, Inc.	(80		)	239			6
Other comprehensive income (loss)	(176		)	198			27
Less: Other comprehensive income (loss) attributable to noncontrolling interests	(19		)	—			—
Comprehensive income (loss) attributable to The Williams Companies, Inc.	$	1,957		$	628		$	886

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,
	2014		2013
	(Millions)
ASSETS
Current assets:
Cash and cash equivalents	$	49	$	282
Other current assets and deferred charges	246		167
Total current assets	295		449
Investments in and advances to consolidated subsidiaries	31,405		19,162
Investment in Access Midstream Partners	—		2,161
Property, plant, and, equipment — net	99		68
Other noncurrent assets	46		34
Total assets	$	31,845	$	21,874
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	27	$	26
Long-term debt due within one year	—		1
Other current liabilities	174		147
Total current liabilities	201		174
Long-term debt	4,562		2,296
Notes payable — affiliates	13,295		10,830
Pension, other postretirement, and other noncurrent liabilities	409		282
Deferred income taxes	4,601		3,428
Contingent liabilities and commitments
Equity:
Common stock	782		718
Other stockholders’ equity	7,995		4,146
Total stockholders’ equity	8,777		4,864
Total liabilities and stockholders’ equity	$	31,845	$	21,874

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,
	2014			2013			2012
	(Millions)
NET CASH FLOWS PROVIDED (USED) BY OPERATING ACTIVITIES	$	(500	)	$	19		$	(11	)
FINANCING ACTIVITIES:
Proceeds from long-term debt	2,935			—			848
Payments of long-term debt	(671		)	(1		)	(28		)
Changes in notes payable to affiliates	2,465			1,892			520
Tax benefit of stock-based awards	25			19			44
Proceeds from issuance of common stock	3,416			18			2,550
Dividends paid	(1,412		)	(982		)	(742		)
Other — net	(17		)	(3		)	(7		)
Net cash provided (used) by financing activities	6,741			943			3,185
INVESTING ACTIVITIES:
Capital expenditures	(54		)	(23		)	(18		)
Purchase of Access Midstream Partners	(5,995		)	—			—
Purchase of investment in Access Midstream Partners	—			(4		)	(2,179		)
Changes in investments in and advances to consolidated subsidiaries	(450		)	(985		)	(953		)
Other — net	25			(8		)	24
Net cash provided (used) by investing activities	(6,474		)	(1,020		)	(3,126		)
Increase (decrease) in cash and cash equivalents	(233		)	(58		)	48
Cash and cash equivalents at beginning of year	282			340			292
Cash and cash equivalents at end of year	$	49		$	282		$	340

See accompanying notes.