Basis of Presentation and Summary of Significant Accounting Policies Cash flows (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 29, 2012	Dec. 31, 2011
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Maximum maturities period of cash equivalents (in days)	90 days
Cash paid for interest	$ 163.8	$ 191.4	$ 102.3
Cash paid for taxes	107.8	34.6	62.7
Non-cash convertible note issued upon close of the Acquisition	$ 0	$ 645.9	$ 0