XML 61 R74.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Property Plant and Equipment - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Abstract]      
Depreciation $ 183.3 $ 170.0 $ 169.5
Interest capitalized on significant capital projects $ 30.2 $ 19.3 $ 7.4