Leases and Commitments (Minimum Rental Commitments and Purchase Obligations) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
2012, Leases	$ 109.5
2013, Leases	96.5
2014, Leases	83.9
2015, Leases	72.1
2016, Leases	55.7
Later years, Leases	148.8
Sublease rental income, Leases	(22.2)
Total, Leases	544.3
2012, Purchase Obligations	344.6
2013, Purchase Obligations	154.4
2014, Purchase Obligations	126.1
2015, Purchase Obligations	115.3
2016, Purchase Obligations	120.4
Later years, Purchase Obligations	5.7
Total, Purchase Obligations	$ 866.5