Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v3.10.0.1
Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Millions
Jun. 30, 2018
Dec. 31, 2017
Jul. 01, 2017
Assets:      
Cash Equivalents   $ 34.4 $ 1.4
Short-Term Investments in Marketable Securities $ 0.8 0.8 0.8
Restricted Cash 9.4 9.4 10.7
Derivatives 9.2 6.0 7.7
Total Assets 19.4 50.6 20.6
Liabilities:      
Derivatives 7.0 7.7 5.2
Deferred Compensation 33.9 34.1 34.5
Total Liabilities at Fair Value 40.9 41.8 39.7
Liabilities Measured at Net Asset Value 10.3 11.8 11.3
Total Liabilities 51.2 53.6 51.0
Level 1 [Member]      
Assets:      
Cash Equivalents   34.4 1.4
Short-Term Investments in Marketable Securities 0.8 0.8 0.8
Restricted Cash 9.4 9.4 10.7
Derivatives 0.0 0.0 0.0
Total Assets 10.2 44.6 12.9
Liabilities:      
Derivatives 0.0 0.0 0.0
Deferred Compensation 3.9 4.0 4.6
Total Liabilities at Fair Value 3.9 4.0 4.6
Level 2 [Member]      
Assets:      
Cash Equivalents   0.0 0.0
Short-Term Investments in Marketable Securities 0.0 0.0 0.0
Restricted Cash 0.0 0.0 0.0
Derivatives 9.2 6.0 7.7
Total Assets 9.2 6.0 7.7
Liabilities:      
Derivatives 7.0 7.7 5.2
Deferred Compensation 30.0 30.1 29.9
Total Liabilities at Fair Value $ 37.0 $ 37.8 $ 35.1