Segment Information (Narrative) (Details)	6 Months Ended
Jul. 01, 2011
Segment Information
Number of segments reported	5
Number of segments previously reported	4

Name:

us-gaap_SegmentReportingMeasurementDisclosuresAbstract

Namespace Prefix:

us-gaap

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration