Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2013	Jan. 01, 2012	Sep. 29, 2013	Jan. 01, 2012
Income Tax Contingency [Line Items]
Unrecognized tax benefits, gross			$ 48.5
Uncertain tax benefits if recognized that could affect the continuing operations effective tax rate			42.1
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	(9.4)
Uncertain tax positions including accrued interest, net of tax benefits and penalties, to be resolved within the next year			11.5
Unremitted Earnings Planned To Be Repatriated				350.0
Increase (decrease) to tax provision in discontinued operations		79.7	2.4
Repatriated Foreign Earnings			350.0
Open Tax Years by Major Tax Jurisdiction, Begin Date			2006
Tax Adjustments, Settlements, and Unusual Provisions			$ (15.6)