Commitments And Contingencies (Schedule Of Settlement And Defense Costs) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Loss Contingencies [Line Items]
Pre-tax cash payments			$ 25.7	$ 24.8
Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
Settlement / indemnity costs incurred (1)	$ 4.4	$ 8.9	15.7	16.7	$ 27.7
Defense costs incurred (1)	12.1	10.6	22.1	21.1	41.7
Gross Settlement And Defense Incurred Costs	16.5	19.5	37.8	37.8	69.4
Settlement / indemnity payments	8.4	5.6	13.5	11.1	24.5
Defense payments	11.7	12.5	20.3	20.6	43.5
Insurance receipts	(5.2)	(4.0)	(8.1)	(6.9)	(18.1)
Pre-tax cash payments	$ 14.9	$ 14.1	$ 25.7	$ 24.8	$ 49.9