Debt Debt Schedule (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Term Loan Facility [Member]	Dec. 31, 2011 Term Loan Facility [Member]	Dec. 31, 2012 Term Loan Facility Two [Member]	Dec. 31, 2011 Term Loan Facility Two [Member]	Oct. 28, 2011 Term Loan Facility Two [Member]	Dec. 31, 2012 Senior Notes Two Member	Dec. 31, 2011 Senior Notes Two Member	Dec. 31, 2012 Senior Notes Six [Member]	Dec. 31, 2011 Senior Notes Six [Member]	Nov. 15, 2011 Senior Notes Six [Member]	Dec. 31, 2012 Senior Notes Three [Member]	Dec. 31, 2011 Senior Notes Three [Member]	Dec. 31, 2012 Senior Notes Seven [Member]	Dec. 31, 2011 Senior Notes Seven [Member]	Nov. 15, 2011 Senior Notes Seven [Member]	Dec. 31, 2012 Senior Notes Four Member	Dec. 31, 2011 Senior Notes Four Member	Dec. 31, 2012 Junior Subordinated Debt [Member]	Dec. 31, 2011 Junior Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 418.8	$ 468.8	$ 912.5	$ 1,000.0	$ 1,000.0	$ 650.0	$ 650.0	$ 1,518.8	$ 1,600.0	$ 1,600.0	$ 650.0	$ 650.0	$ 1,339.6	$ 1,500.0	$ 1,500.0	$ 247.4	$ 247.3	$ 377.4	$ 375.2
Capital Lease Obligations	104.6	122.8
Other Long-term Debt	33.8	43.4
Debt and Capital Lease Obligations	$ 6,252.9	$ 6,657.5