Earnings (Loss) Per Common Share from Continuing Operations (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Earnings (loss) per common share from continuing operations

	Years Ended December 31,
	2013		2012		2011
	(Dollars in millions, except per-share amounts; shares in thousands)
Income (loss) from continuing operations attributable to The Williams Companies, Inc. available to common stockholders for basic and diluted earnings (loss) per common share	$	441	$	723	$	803
Basic weighted-average shares	682,948		619,792		588,553
Effect of dilutive securities:
Nonvested restricted stock units	1,995		2,694		4,332
Stock options	2,149		2,608		3,374
Convertible debentures	93		392		1,916
Diluted weighted-average shares	687,185		625,486		598,175
Earnings (loss) per common share from continuing operations:
Basic	$	.65	$	1.17	$	1.36
Diluted	$	.64	$	1.15	$	1.34