Supplemental Guarantor Condensed Financial Information (Condensed Statements Of Operations and Comprehensive Income (Loss)) (Details) - 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
Schedule of Statements Of Operations and Comprehensive Income (Loss) [Line Items]
Customers									$ 3,858.4	$ 4,514.5	$ 5,979.8
Intercompany									0.0	0.0	0.0
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 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 and subsidiaries									0.9	0.5	1.4
Net income (loss) from continuing operations									(93.5)	(135.8)	(643.0)
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)
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									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)
Eliminations [Member]
Schedule of Statements Of Operations and Comprehensive Income (Loss) [Line Items]
Customers									0.0	0.0	0.0
Intercompany									(424.9)	(445.9)	(562.7)
Net sales									(424.9)	(445.9)	(562.7)
Cost of sales									(361.7)	(370.3)	(503.9)
Gross profit									(63.2)	(75.6)	(58.8)
Selling, general and administrative expenses									(63.2)	(75.6)	(58.8)
Goodwill impairment charges									0.0	0.0	0.0
Intangible asset impairment charges									0.0	0.0	0.0
Operating income (loss)									0.0	0.0	0.0
Other income (expense)									0.0	0.0	0.0
Interest expense									60.7	63.8	69.4
Interest income									(60.7)	(63.8)	(69.4)
Interest income (expense), total									0.0	0.0	0.0
Income (loss) before income taxes									0.0	0.0	0.0
Income tax (provision) benefit									0.0	0.0	0.0
Equity in net earnings of affiliated companies and subsidiaries									159.6	267.1	1,278.6
Net income (loss) from continuing operations									159.6	267.1	1,278.6
Net income (loss) including noncontrolling interest									159.6	267.1	1,278.6
Less: net income (loss) attributable to noncontrolling interest									0.0	0.0	0.0
Net income (loss) attributable to Company common shareholders									159.6	267.1	1,278.6
Comprehensive income (loss):
Net income (loss)									159.6	267.1	1,278.6
Currency translation gain (loss)									(92.1)	171.6	199.7
Defined benefit plan adjustments, net of tax									(7.2)	(25.1)	38.1
Other, net of tax											7.6
Comprehensive income (loss), net of tax									60.3	413.6	1,524.0
Comprehensive income (loss) attributable to noncontrolling interest, net of tax									0.0	0.0	0.0
Comprehensive income (loss) attributable to Company common shareholders, net of tax									60.3	413.6	1,524.0
Parent Company [Member]
Schedule of Statements Of Operations and Comprehensive Income (Loss) [Line Items]
Customers									0.0	0.0	0.0
Intercompany									63.2	75.6	58.8
Net sales									63.2	75.6	58.8
Cost of sales									0.0	0.0	0.0
Gross profit									63.2	75.6	58.8
Selling, general and administrative expenses									111.8	75.6	49.9
Goodwill impairment charges									0.0	0.0	0.0
Intangible asset impairment charges									0.0	0.0	0.0
Operating income (loss)									(48.6)	0.0	8.9
Other income (expense)									0.0	0.7	(1.5)
Interest expense									(57.6)	(58.2)	(63.0)
Interest income									55.6	56.2	55.2
Interest income (expense), total									(2.0)	(2.0)	(7.8)
Income (loss) before income taxes									(50.6)	(1.3)	(0.4)
Income tax (provision) benefit									9.7	0.3	0.1
Equity in net earnings of affiliated companies and subsidiaries									(52.9)	(120.9)	(627.3)
Net income (loss) from continuing operations									(93.8)	(121.9)	(627.6)
Net income (loss) including noncontrolling interest									(93.8)	(121.9)	(627.6)
Less: net income (loss) attributable to noncontrolling interest									0.0	0.0	0.0
Net income (loss) attributable to Company common shareholders									(93.8)	(121.9)	(627.6)
Comprehensive income (loss):
Net income (loss)									(93.8)	(121.9)	(627.6)
Currency translation gain (loss)									47.2	(100.2)	(118.0)
Defined benefit plan adjustments, net of tax									6.6	15.1	(25.7)
Other, net of tax											(7.6)
Comprehensive income (loss), net of tax									(40.0)	(207.0)	(778.9)
Comprehensive income (loss) attributable to noncontrolling interest, net of tax									0.0	0.0	0.0
Comprehensive income (loss) attributable to Company common shareholders, net of tax									(40.0)	(207.0)	(778.9)
Guarantor Subsidiaries [Member]
Schedule of Statements Of Operations and Comprehensive Income (Loss) [Line Items]
Customers									1,730.3	1,926.4	2,064.9
Intercompany									206.4	219.2	303.6
Net sales									1,936.7	2,145.6	2,368.5
Cost of sales									1,703.0	1,889.9	2,103.8
Gross profit									233.7	255.7	264.7
Selling, general and administrative expenses									127.9	185.1	181.3
Goodwill impairment charges									7.4	0.0	0.0
Intangible asset impairment charges									5.0	0.0	2.1
Operating income (loss)									93.4	70.6	81.3
Other income (expense)									1.5	(8.1)	5.3
Interest expense									(65.3)	(66.2)	(65.7)
Interest income									5.1	7.5	13.9
Interest income (expense), total									(60.2)	(58.7)	(51.8)
Income (loss) before income taxes									34.7	3.8	34.8
Income tax (provision) benefit									18.4	21.2	(11.4)
Equity in net earnings of affiliated companies and subsidiaries									(106.0)	(145.9)	(650.7)
Net income (loss) from continuing operations									(52.9)	(120.9)	(627.3)
Net income (loss) including noncontrolling interest									(52.9)	(120.9)	(627.3)
Less: net income (loss) attributable to noncontrolling interest									0.0	0.0	0.0
Net income (loss) attributable to Company common shareholders									(52.9)	(120.9)	(627.3)
Comprehensive income (loss):
Net income (loss)									(52.9)	(120.9)	(627.3)
Currency translation gain (loss)									47.2	(100.2)	(118.0)
Defined benefit plan adjustments, net of tax									6.6	15.1	(25.7)
Other, net of tax											(7.6)
Comprehensive income (loss), net of tax									0.9	(206.0)	(778.6)
Comprehensive income (loss) attributable to noncontrolling interest, net of tax									0.0	0.0	0.0
Comprehensive income (loss) attributable to Company common shareholders, net of tax									0.9	(206.0)	(778.6)
Non-Guarantor Subsidiaries [Member]
Schedule of Statements Of Operations and Comprehensive Income (Loss) [Line Items]
Customers									2,128.1	2,588.1	3,914.9
Intercompany									155.3	151.1	200.3
Net sales									2,283.4	2,739.2	4,115.2
Cost of sales									2,110.0	2,562.5	3,986.7
Gross profit									173.4	176.7	128.5
Selling, general and administrative expenses									232.4	227.2	278.3
Goodwill impairment charges									1.6	3.9	155.1
Intangible asset impairment charges									2.5	1.7	96.7
Operating income (loss)									(63.1)	(56.1)	(401.6)
Other income (expense)									5.7	(63.9)	(216.7)
Interest expense									(27.3)	(36.4)	(57.0)
Interest income									2.5	2.8	4.8
Interest income (expense), total									(24.8)	(33.6)	(52.2)
Income (loss) before income taxes									(82.2)	(153.6)	(670.5)
Income tax (provision) benefit									(24.4)	(6.7)	3.0
Equity in net earnings of affiliated companies and subsidiaries									0.2	0.2	0.8
Net income (loss) from continuing operations									(106.4)	(160.1)	(666.7)
Net income (loss) including noncontrolling interest									(106.4)	(160.1)	(666.7)
Less: net income (loss) attributable to noncontrolling interest									0.3	(13.9)	(15.4)
Net income (loss) attributable to Company common shareholders									(106.7)	(146.2)	(651.3)
Comprehensive income (loss):
Net income (loss)									(106.4)	(160.1)	(666.7)
Currency translation gain (loss)									45.6	(71.4)	(61.0)
Defined benefit plan adjustments, net of tax									0.6	10.0	(12.4)
Other, net of tax											0.0
Comprehensive income (loss), net of tax									(60.2)	(221.5)	(740.1)
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									$ (61.2)	$ (199.3)	$ (745.4)