Accrued Liabilities (Schedule Of Accrued Liabilities) (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Accrued Liabilities Summary Of Warranty Liabilities [Abstract]
Employee related expenses	$ 90.3	$ 120.6
Standard and Extended Product Warranty Accrual	10.8	11.0	$ 18.2
Product Warranty Accrual, Current		11.0
Current lease liabilities	24.1	24.0
Contract with Customer, Liability, Current	96.4
Contract liabilities	96.4	88.4
Other	128.6	134.2
Total	$ 350.2	$ 378.2