Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2016

Southern Company Gas [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Schedule of Disposal Groups, Including Discontinued Operations

The components of discontinued operations recorded on the statements of income for the predecessor year ended December 31, 2014 are as follows:

	Year Ended December 31, 2014
	(in millions)
Operating revenues	$	243
Operating expenses
Cost of goods sold	149
Operation and maintenance	75
Depreciation and amortization	5
Taxes other than income taxes	5
Loss on sale and goodwill impairment(*)	28
Total operating expenses	262
Operating (loss) income	(19		)
(Loss) income before income taxes	(19		)
Income tax expense	(61		)
(Loss) income from discontinued operations, net of tax	$	(80	)

(*) Primarily reflects $7 million due to the suspension of depreciation and amortization during 2014 and $19 million of goodwill attributable to Tropical Shipping that was impaired in 2014, based on the negotiated sales price.