Guarantor Financial Information (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 312.4	$ 199.7	$ 290.5	$ 227.4
Accounts and notes receivable, net	260.0	303.4
Inventories	220.6	204.1
Accounts and notes receivable affiliates	0.0	0.0
Total current assets	829.3	735.1
Investment in affiliates	0.0	0.0
Property, plant and equipment, net	226.6	224.8
Intangible assets, net	1,074.2	1,086.5
Other noncurrent assets	117.3	216.6
Total assets	2,247.4	2,263.0
Current liabilities:
Accounts payable and accruals	(381.4)	(381.5)
Short-term borrowings and current maturities of long-term debt	48.2	65.6
Accounts and note payable affiliates	0.0	0.0
Total current liabilities	429.6	447.1
Long-term debt	1,415.6	1,457.5
Note payable affiliate	0.0	0.0
Other noncurrent liabilities	285.8	328.7
Total liabilities	2,131.0	2,233.3
Equity:
Total equity	116.4	29.7	18.5	(35.0)
Total liabilities and equity	2,247.4	2,263.0
Costs In Excess Of Billings and Other Assets, Current	34.1	27.9
Assets Held-for-sale, Current	2.2	0.0
Due from Affiliate, Noncurrent	0.0	0.0
Stockholders' Equity Attributable to Parent	113.3	25.6
Stockholders' Equity Attributable to Noncontrolling Interest	3.1	4.1
Parent Company [Member]
Current assets:
Cash and cash equivalents	0.5	3.3	27.1	1.4
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Accounts and notes receivable affiliates	0.0	248.6
Total current assets	0.9	252.4
Investment in affiliates	1,229.4	986.2
Property, plant and equipment, net	0.0	0.0
Intangible assets, net	0.0	0.0
Other noncurrent assets	5.4	10.8
Total assets	1,288.9	1,249.4
Current liabilities:
Accounts payable and accruals	(7.0)	(8.2)
Short-term borrowings and current maturities of long-term debt	46.9	46.9
Accounts and note payable affiliates	0.4	0.3
Total current liabilities	54.3	55.4
Long-term debt	1,120.2	1,168.4
Note payable affiliate	0.0	0.0
Other noncurrent liabilities	1.1	0.0
Total liabilities	1,175.6	1,223.8
Equity:
Total equity	113.3	25.6
Total liabilities and equity	1,288.9	1,249.4
Costs In Excess Of Billings and Other Assets, Current	0.4	0.5
Assets Held-for-sale, Current	0.0
Due from Affiliate, Noncurrent	53.2	0.0
Stockholders' Equity Attributable to Parent	113.3	25.6
Stockholders' Equity Attributable to Noncontrolling Interest	0.0	0.0
Other Subsidiaries [Member]
Current assets:
Cash and cash equivalents	145.8	122.3	136.6	147.2
Accounts and notes receivable, net	120.0	181.8
Inventories	143.0	97.4
Accounts and notes receivable affiliates	320.6	324.5
Total current assets	874.5	698.8
Investment in affiliates	3,422.6	4,660.2
Property, plant and equipment, net	104.6	77.2
Intangible assets, net	893.4	905.1
Other noncurrent assets	35.2	122.2
Total assets	7,010.1	8,189.8
Current liabilities:
Accounts payable and accruals	(184.8)	12.3
Short-term borrowings and current maturities of long-term debt	1.3	18.6
Accounts and note payable affiliates	380.8	611.2
Total current liabilities	566.9	642.1
Long-term debt	1.0	0.0
Note payable affiliate	3,583.5	3,669.6
Other noncurrent liabilities	146.0	202.8
Total liabilities	4,297.4	4,514.5
Equity:
Total equity	2,712.7	3,675.3
Total liabilities and equity	7,010.1	8,189.8
Costs In Excess Of Billings and Other Assets, Current	142.9	(27.2)
Assets Held-for-sale, Current	2.2
Due from Affiliate, Noncurrent	1,679.8	1,726.3
Stockholders' Equity Attributable to Parent	2,709.6	3,671.2
Stockholders' Equity Attributable to Noncontrolling Interest	3.1	4.1
Subsidiary Issuer [Member]
Current assets:
Cash and cash equivalents	0.1	0.3	0.5	0.0
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Accounts and notes receivable affiliates	331.6	356.4
Total current assets	381.4	401.4
Investment in affiliates	2,814.1	3,001.4
Property, plant and equipment, net	0.0	0.0
Intangible assets, net	0.0	0.0
Other noncurrent assets	14.8	1.5
Total assets	4,360.1	4,548.5
Current liabilities:
Accounts payable and accruals	(4.7)	(4.3)
Short-term borrowings and current maturities of long-term debt	0.0	0.0
Accounts and note payable affiliates	36.4	57.5
Total current liabilities	41.1	61.8
Long-term debt	294.4	289.1
Note payable affiliate	2,690.7	2,750.8
Other noncurrent liabilities	0.0	1.2
Total liabilities	3,026.2	3,102.9
Equity:
Total equity	1,333.9	1,445.6
Total liabilities and equity	4,360.1	4,548.5
Costs In Excess Of Billings and Other Assets, Current	49.7	44.7
Assets Held-for-sale, Current	0.0
Due from Affiliate, Noncurrent	1,149.8	1,144.2
Stockholders' Equity Attributable to Parent	1,333.9	1,445.6
Stockholders' Equity Attributable to Noncontrolling Interest	0.0	0.0
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	166.0	73.8	126.3	78.8
Accounts and notes receivable, net	140.0	121.6
Inventories	77.6	106.7
Accounts and notes receivable affiliates	395.0	375.9
Total current assets	788.0	687.9
Investment in affiliates	193.4	192.9
Property, plant and equipment, net	122.0	147.6
Intangible assets, net	180.8	181.4
Other noncurrent assets	61.9	82.1
Total assets	4,790.8	4,841.8
Current liabilities:
Accounts payable and accruals	(353.2)	(356.7)
Short-term borrowings and current maturities of long-term debt	0.0	0.1
Accounts and note payable affiliates	629.6	636.4
Total current liabilities	982.8	993.2
Long-term debt	0.0	0.0
Note payable affiliate	53.3	0.0
Other noncurrent liabilities	138.7	124.7
Total liabilities	1,174.8	1,117.9
Equity:
Total equity	3,616.0	3,723.9
Total liabilities and equity	4,790.8	4,841.8
Costs In Excess Of Billings and Other Assets, Current	9.4	9.9
Assets Held-for-sale, Current	0.0
Due from Affiliate, Noncurrent	3,444.7	3,549.9
Stockholders' Equity Attributable to Parent	3,616.0	3,723.9
Stockholders' Equity Attributable to Noncontrolling Interest	0.0	0.0
Consolidation, Eliminations [Member]
Current assets:
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Accounts and notes receivable affiliates	(1,047.2)	(1,305.4)
Total current assets	(1,215.5)	(1,305.4)
Investment in affiliates	(7,659.5)	(8,840.7)
Property, plant and equipment, net	0.0	0.0
Intangible assets, net	0.0	0.0
Other noncurrent assets	0.0	0.0
Total assets	(15,202.5)	(16,566.5)
Current liabilities:
Accounts payable and accruals	168.3	0.0
Short-term borrowings and current maturities of long-term debt	0.0	0.0
Accounts and note payable affiliates	(1,047.2)	(1,305.4)
Total current liabilities	(1,215.5)	(1,305.4)
Long-term debt	0.0	0.0
Note payable affiliate	(6,327.5)	(6,420.4)
Other noncurrent liabilities	0.0	0.0
Total liabilities	(7,543.0)	(7,725.8)
Equity:
Total equity	(7,659.5)	(8,840.7)
Total liabilities and equity	(15,202.5)	(16,566.5)
Costs In Excess Of Billings and Other Assets, Current	(168.3)	0.0
Assets Held-for-sale, Current	0.0
Due from Affiliate, Noncurrent	(6,327.5)	(6,420.4)
Stockholders' Equity Attributable to Parent	(7,659.5)	(8,840.7)
Stockholders' Equity Attributable to Noncontrolling Interest	$ 0.0	$ 0.0