Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
	May. 20, 2013	Dec. 31, 2015	Oct. 02, 2015	Jul. 03, 2015	Apr. 03, 2015	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement and Statement of Other Comprehensive Income [Abstract]
Net sales		$ 913.3	$ 1,027.3	$ 1,113.4	$ 1,171.1	$ 1,384.4	$ 1,315.8	$ 1,387.3	$ 1,301.5	$ 4,225.1	$ 5,389.0	$ 5,781.3
Cost of sales										3,811.3	5,053.7	5,176.3
Gross profit		58.8	118.1	123.2	113.7	83.2	8.1	126.2	117.8	413.8	335.3	605.0
Selling, general and administrative expenses										390.8	410.0	429.2
Goodwill impairment charge										0.7	93.5	0.0
Intangible asset impairment charges										1.7	78.3	0.0
Operating income (loss)										20.6	(246.5)	175.8
Other income (expense)										(67.0)	(210.8)	(66.6)
Interest income (expense):
Interest expense										(94.7)	(113.4)	(122.1)
Interest income										1.8	3.3	6.0
Interest income (expense), total										(92.9)	(110.1)	(116.1)
Income (loss) before income taxes										(139.3)	(567.4)	(6.9)
Income tax (provision) benefit										14.7	(6.6)	(30.5)
Equity in net earnings of affiliated companies										0.4	1.2	1.7
Net income (loss) from continuing operations		(51.7)	(36.2)	(1.6)	(34.7)	(186.7)	(110.0)	(13.7)	(262.4)	(124.2)	(572.8)	(35.7)
Net income (loss) from discontinued operations, net of tax		(3.0)	4.4	(6.8)	(6.2)	24.6	(8.8)	(9.0)	(77.0)	(11.6)	(70.2)	25.6
Net income (loss) including noncontrolling interest		(54.7)	(31.8)	(8.4)	(40.9)	(162.1)	(118.8)	(22.7)	(339.4)	(135.8)	(643.0)	(10.1)
Less: preferred stock dividends										0.0	0.0	0.3
Less: net income (loss) attributable to noncontrolling interest										(13.9)	(15.4)	7.7
Net income (loss) attributable to Company common shareholders		$ (47.9)	$ (29.0)	$ (6.9)	$ (38.1)	$ (163.2)	$ (124.2)	$ (24.8)	$ (315.4)	$ (121.9)	$ (627.6)	$ (18.1)
Earnings Per Share [Abstract]
Continuing operations, Earnings (loss) per common share - basic (usd per share)		$ (0.91)	$ (0.69)	$ (0.03)	$ (0.69)	$ (3.83)	$ (2.34)	$ (0.28)	$ (5.26)	$ (2.32)	$ (11.74)	$ (0.75)
Earnings (loss) from continuing operations attributable to Company common shareholders per common share – assuming dilution		(0.91)	(0.69)	(0.03)	(0.69)	(3.83)	(2.34)	(0.28)	(5.26)	(2.32)	(11.74)	(0.75)
Earnings (loss) from discontinued operations attributable to Company common shareholders per common share – basic		(0.07)	0.10	(0.11)	(0.09)	0.48	(0.21)	(0.23)	(1.16)	(0.17)	(1.12)	0.38
Earnings (loss) from discontinued operations attributable to Company common shareholders per common share – assuming dilution		(0.07)	0.10	(0.11)	(0.09)	0.48	(0.21)	(0.23)	(1.16)	(0.17)	(1.12)	0.38
Earnings (loss) per common share - basic (usd per share)		(0.98)	(0.59)	(0.14)	(0.78)	(3.35)	(2.55)	(0.51)	(6.42)	(2.49)	(12.86)	(0.37)
Earnings (loss) per common share - assuming dilution (usd per share)		$ (0.98)	$ (0.59)	$ (0.14)	$ (0.78)	$ (3.35)	$ (2.55)	$ (0.51)	$ (6.42)	(2.49)	(12.86)	(0.37)
Dividends per common share	$ 0.18									$ 0.72	$ 0.72	$ 0.54
Comprehensive income (loss):
Net income (loss) including noncontrolling interest		$ (54.7)	$ (31.8)	$ (8.4)	$ (40.9)	$ (162.1)	$ (118.8)	$ (22.7)	$ (339.4)	$ (135.8)	$ (643.0)	$ (10.1)
Currency translation gain (loss)										(100.2)	(97.3)	(46.9)
Defined benefit plan adjustments, net of tax of $7.2 million in 2015, $14.6 million in 2014 and $16.8 million in 2013										15.1	(25.7)	32.0
Change in fair value of derivatives, net of tax of $0.2 million in 2013										0.0	0.0	0.3
Other, net of tax										0.0	(7.6)	0.0
Comprehensive income (loss), net of tax										(220.9)	(773.6)	(24.7)
Comprehensive income (loss) attributable to noncontrolling interest, net of tax										(22.2)	5.3	0.6
Comprehensive income (loss) attributable to Company common shareholders, net of tax										$ (198.7)	$ (778.9)	$ (25.3)