General, Description of Business, and Basis of Presentation Disposal Group (Tables)

3 Months Ended

Mar. 31, 2017

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations [Table Text Block]

The assets and liabilities of the Geismar olefins plant are presented as held for sale as of March 31, 2017. The following table presents the carrying amounts of the major classes of assets and liabilities included as part of the Geismar disposal group, which are presented within Assets held for sale and Liabilities held for sale in the Consolidated Balance Sheet. Also included in Assets held for sale in the Consolidated Balance Sheet are $24 million of assets held for sale in the Williams Partners segment unrelated to the Geismar Interest and at December 31, 2016, were previously included in Other current assets and deferred charges.

	Carrying Amount
	March 31, 2017
	(Millions)
Assets:
Current assets	$	71
Property, plant, and equipment – net	901
Other noncurrent assets	27
	$	999
Liabilities:
Current liabilities	$	42
Noncurrent liabilities	1
	$	43

The following table presents the results of operations for the Geismar disposal group.

	Three Months Ended   March 31,
	2017		2016
	(Millions)
Income (loss) before income taxes of disposal group	$	23	$	18
Income (loss) before income taxes of disposal group attributable to The Williams Companies, Inc.	17		11