Supplemental Disclosures - Non-Cash Financing Activities And Cash Payments (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 30, 2018
Mar. 31, 2017
Non-cash activities:    
Capital expenditures in accounts payable and other liabilities $ 209.1 $ 125.3
Cash (received) paid for:    
Interest income (0.9) (0.6)
Interest expense 16.6 27.6
Income taxes $ 19.1 $ 18.4