Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v3.8.0.1
Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Millions
Mar. 31, 2018
Dec. 31, 2017
Apr. 01, 2017
Assets:      
Cash Equivalents   $ 34.4 $ 3.7
Short-Term Investments in Marketable Securities $ 0.8 0.8 0.7
Restricted Cash 9.4 9.4 11.2
Derivatives 6.1 6.0 7.8
Total Assets 16.3 50.6 23.4
Liabilities:      
Derivatives 11.7 7.7 4.8
Deferred Compensation 31.4 32.6 31.5
Total Liabilities at Fair Value 43.1 40.3 36.3
Liabilities Measured at Net Asset Value 8.8 10.5 10.4
Total Liabilities 51.9 50.8 46.7
Level 1 [Member]      
Assets:      
Cash Equivalents   34.4 3.7
Short-Term Investments in Marketable Securities 0.8 0.8 0.7
Restricted Cash 9.4 9.4 11.2
Derivatives 0.0 0.0 0.0
Total Assets 10.2 44.6 15.6
Liabilities:      
Derivatives 0.0 0.0 0.0
Deferred Compensation 3.6 4.0 4.3
Total Liabilities at Fair Value 3.6 4.0 4.3
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 6.1 6.0 7.8
Total Assets 6.1 6.0 7.8
Liabilities:      
Derivatives 11.7 7.7 4.8
Deferred Compensation 27.8 28.6 27.2
Total Liabilities at Fair Value $ 39.5 $ 36.3 $ 32.0