Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jul. 01, 2016	Apr. 01, 2016	Dec. 31, 2015	Oct. 02, 2015	Jul. 03, 2015	Apr. 03, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement and Statement of Other Comprehensive Income [Abstract]
Net sales	$ 910.0	$ 924.5	$ 1,021.2	$ 1,002.7	$ 952.9	$ 1,096.4	$ 1,202.9	$ 1,262.3	$ 3,858.4	$ 4,514.5	$ 5,979.8
Cost of sales									3,451.3	4,082.1	5,586.6
Gross profit	74.1	102.9	119.2	110.9	64.9	115.3	131.5	120.7	407.1	432.4	393.2
Selling, general and administrative expenses									408.9	412.3	450.7
Goodwill impairment charges									9.0	3.9	155.1
Intangible asset impairment charges									7.5	1.7	98.8
Operating income (loss)									(18.3)	14.5	(311.4)
Other income (expense)									7.2	(71.3)	(212.9)
Interest income (expense):
Interest expense									(89.5)	(97.0)	(116.3)
Interest income									2.5	2.7	4.5
Interest income (expense), total									(87.0)	(94.3)	(111.8)
Income (loss) before income taxes									(98.1)	(151.1)	(636.1)
Income tax (provision) benefit									3.7	14.8	(8.3)
Equity in net earnings of affiliated companies									0.9	0.5	1.4
Net income (loss) including noncontrolling interest	(103.7)	(13.7)	28.3	(4.4)	(54.7)	(31.8)	(8.4)	(40.9)	(93.5)	(135.8)	(643.0)
Less: net income (loss) attributable to noncontrolling interest	0.9	0.6	(1.5)	0.3	(6.8)	(2.8)	(1.5)	(2.8)	0.3	(13.9)	(15.4)
Net income (loss) attributable to Company common shareholders	$ (104.6)	$ (14.3)	$ 29.8	$ (4.7)	$ (47.9)	$ (29.0)	$ (6.9)	$ (38.1)	$ (93.8)	$ (121.9)	$ (627.6)
Earnings (loss) per share - Net income (loss) attributable to Company common shareholders per common share
Earnings (loss) per common share - basic (usd per share)	$ (2.10)	$ (0.29)	$ 0.60	$ (0.10)	$ (0.98)	$ (0.59)	$ (0.14)	$ (0.78)	$ (1.89)	$ (2.49)	$ (12.86)
Earnings (loss) per common share - assuming dilution (usd per share)	$ (2.10)	$ (0.29)	$ 0.57	$ (0.10)	$ (0.98)	$ (0.59)	$ (0.14)	$ (0.78)	(1.89)	(2.49)	(12.86)
Dividends per common share (in dollars per share)									$ 0.72	$ 0.72	$ 0.72
Comprehensive income (loss):
Net income (loss)	$ (103.7)	$ (13.7)	$ 28.3	$ (4.4)	$ (54.7)	$ (31.8)	$ (8.4)	$ (40.9)	$ (93.5)	$ (135.8)	$ (643.0)
Currency translation gain (loss)									47.9	(100.2)	(97.3)
Defined benefit plan adjustments, net of tax of $3.6 million in 2016, $7.2 million in 2015 and $14.6 million in 2014									6.6	15.1	(25.7)
Other, net of tax									0.0	0.0	(7.6)
Comprehensive income (loss), net of tax									(39.0)	(220.9)	(773.6)
Comprehensive income (loss) attributable to noncontrolling interest, net of tax									1.0	(22.2)	5.3
Comprehensive income (loss) attributable to Company common shareholders, net of tax									$ (40.0)	$ (198.7)	$ (778.9)