Divestiture (Tables)

12 Months Ended

Dec. 31, 2016

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Disposal Group's Income Statement Disclosures [Table Text Block]

The following table presents the results of operations for the disposal group, excluding the impairment and loss noted above:

	Years Ended December 31,
	2016			2015
	(Millions)
Income (loss) before income taxes of disposal group	$	(98	)	$	17
Income (loss) before income taxes of disposal group attributable to The Williams Companies, Inc.	(95		)	15