Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Narrative) (Details)

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Commitments And Contingencies (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Oct. 01, 2011
Commitment And Contingencies [Line Items]  
Standard product service period, years 1
Exceptional product service period, years 3
AMTC Rental Contract Guarantee [Member]
 
Commitment And Contingencies [Line Items]  
Guarantee obligation $ 1
Rental facility guarantees and credit facility obligation termination date June 2012
AMTC Revolving Credit Facility [Member]
 
Commitment And Contingencies [Line Items]  
Guarantee obligation 15
Revolving credit facility joint and several guarantee obligation, percentage 50.00%
Revolving credit facility, amount outstanding $ 30
Rental facility guarantees and credit facility obligation termination date December 2011