Environmental, Contingencies And Commitments (Narrative) (Detail) (USD $) In Millions, unless otherwise specified					3 Months Ended		6 Months Ended			6 Months Ended			6 Months Ended
	Jun. 30, 2012 Accrued Liabilities	Dec. 31, 2011 Accrued Liabilities	Jun. 30, 2012 Noncurrent Liabilities [Member]	Dec. 31, 2011 Noncurrent Liabilities [Member]	Jun. 30, 2012 Environmental Matters	Jun. 30, 2011 Environmental Matters	Jun. 30, 2012 Environmental Matters	Jun. 30, 2011 Environmental Matters	Dec. 30, 2011 Environmental Matters	Jun. 30, 2012 Environmental Matters U.S. Site	Jun. 30, 2012 Other Contingencies	Dec. 31, 2011 Other Contingencies	Jun. 30, 2012 Other Contingencies Asbestos Issue	Dec. 31, 2011 Other Contingencies Asbestos Issue
Environment Matters And Other Contingencies [Line Items]
Aggregate environmental related accruals					$ 68.6		$ 68.6		$ 69.4
Aggregate environmental related accruals, current	6.9	6.9
Aggregate environmental related accruals, noncurrent			61.7	62.5
Environmental remediation spending					0.7	0.9	1.5	1.7
Increase in environmental related accruals										0.8
Self-insured and insured contingent liability											51.6	53.0	41.8	42.4
Insurance recovery receivable											$ 21.9	$ 22.1	$ 21.5	$ 21.8
Recovery of future asbestos indemnity costs													48.00%