Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		3 Months Ended			6 Months Ended
	Apr. 01, 2017	Jun. 30, 2017	Apr. 01, 2017	Jun. 30, 2016	Jun. 30, 2016
Net income (loss)				$ (226.2)	$ (397.3)
Successor
Net income (loss)		$ 98.7
Reclassification for realized losses on cash flow hedges (net of respective net tax provision of $0.0, $0.0, $23.1, $0.0, $9.1 and $52.3) included in net income (loss)		0.0
Postretirement plans and workers' compensation obligations (net of respective net tax provision of $0.0, $0.0, $2.1, $0.0, $2.5 and $4.2)		0.0
Foreign currency translation adjustment		0.5
Other comprehensive income, net of income taxes		0.5
Comprehensive income (loss)		99.2
Less: Series A Convertible Preferred Stock dividends		115.1
Less: Comprehensive income attributable to noncontrolling interests		3.8
Comprehensive loss attributable to common stockholders		$ (19.7)
Predecessor
Net income (loss)	$ (331.9)		$ (211.7)	(226.2)	(397.3)
Reclassification for realized losses on cash flow hedges (net of respective net tax provision of $0.0, $0.0, $23.1, $0.0, $9.1 and $52.3) included in net income (loss)	0.0		18.6	39.4	89.1
Postretirement plans and workers' compensation obligations (net of respective net tax provision of $0.0, $0.0, $2.1, $0.0, $2.5 and $4.2)	0.0		4.4	3.6	7.2
Foreign currency translation adjustment	0.0		5.5	(1.8)	0.9
Other comprehensive income, net of income taxes	0.0		28.5	41.2	97.2
Comprehensive income (loss)	(331.9)		(183.2)	(185.0)	(300.1)
Less: Series A Convertible Preferred Stock dividends	0.0		0.0	0.0	0.0
Less: Comprehensive income attributable to noncontrolling interests	0.0		4.8	1.7	1.7
Comprehensive loss attributable to common stockholders	$ (331.9)		$ (188.0)	$ (186.7)	$ (301.8)