Summary of Significant Accounting Policies (Revenue Recognition) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Dec. 29, 2013
|
Dec. 30, 2012
|
Jan. 01, 2012
|
|
Change in Accounting Estimate [Line Items] | |||
Favorable effect of change in accounting estimate on operating income | $ 21.4 | $ 18.0 | $ 4.7 |
Unfavorable effect of change in accounting estimate on operating income | 23.2 | 19.2 | 4.4 |
Contracts Accounted for under Percentage of Completion [Member]
|
|||
Change in Accounting Estimate [Line Items] | |||
Net effect of change in accounting estimate on operating income | $ 1.8 | $ 1.2 | $ 0.3 |