Newly Adopted Accounting Standards and Accounting Standards Not Yet Implemented Newly Adopted Accounting Standards and Accounting Standards Not Yet Implemented (Tables)

9 Months Ended

Sep. 30, 2018

Newly Adopted Accounting Standards and Accounting Standards Not Yet Implemented [Abstract]

Schedule of Adjustments Due to ASU 2014-09 [Table Text Block]

The cumulative effects to the Company’s consolidated January 1, 2018 balance sheet were to reduce retained earnings for the amount of revenue that would have been deferred and to reduce long-term customer receivables, as noted in the table below:

	Balance at December 31, 2017		Adjustments due to ASU 2014-09			Balance at January 1, 2018
	(Dollars in millions)
ASSETS
Investments and other assets	$	470.6	$	(22.5	)	$	448.1
STOCKHOLDERS’ EQUITY
Retained earnings	613.6		(22.5		)	591.1

Schedule of the Impacts of ASU 2017-07 [Table Text Block]

The retrospective impacts to the unaudited condensed consolidated statements of operations were as follows:

	Successor
	Three Months Ended September 30, 2017
	Before Application of Accounting Guidance		Adjustment			After Application of Accounting Guidance
	(Dollars in millions)
Results of Operations Amounts
Operating costs and expenses	$	1,046.0	$	(6.9	)	$	1,039.1
Selling and administrative expenses	33.4		0.3			33.7
Operating profit	202.9		6.6			209.5
Net periodic benefit costs, excluding service cost	—		6.6			6.6
Income from continuing operations before income taxes	149.6		—			149.6

	Successor
	April 2 through September 30, 2017
	Before Application of Accounting Guidance		Adjustment			After Application of Accounting Guidance
	(Dollars in millions)
Results of Operations Amounts
Operating costs and expenses	$	1,980.8	$	(13.8	)	$	1,967.0
Selling and administrative expenses	67.8		0.6			68.4
Operating profit	348.9		13.2			362.1
Net periodic benefit costs, excluding service cost	—		13.2			13.2
Income from continuing operations before income taxes	255.7		—			255.7

	Predecessor
	January 1 through April 1, 2017
	Before Application of Accounting Guidance			Adjustment			After Application of Accounting Guidance
	(Dollars in millions)
Results of Operations Amounts
Operating costs and expenses	$	963.7		$	(13.5	)	$	950.2
Selling and administrative expenses	37.2			(0.9		)	36.3
Operating profit	198.1			14.4			212.5
Net periodic benefit costs, excluding service cost	—			14.4			14.4
Loss from continuing operations before income taxes	(459.3		)	—			(459.3		)