Accounts Receivable (Rollforward Of Allowances For Credit Losses For Finance And Contract Receivables) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Accounts Receivable [Abstract]
Finance receivables, Allowance for doubtful accounts, Beginning of year	$ 24.2	$ 21.5
Finance receivables, Provision for bad debt expense	3.9	1.8
Finance receivables, Charge-offs	(4.7)	(3.2)
Finance receivables, Recoveries	1.1	1.0
Finance receivables, Allowance for doubtful accounts, End of period	24.5	21.1
Contract receivables, Allowance for doubtful accounts, Beginning of year	4.1	4.0
Contract receivables, Provision for bad debt expense	0.5	1.0
Contract receivables, Charge-offs	(0.3)	(0.4)
Contract receivables, Recoveries	0.1	0.2
Contract receivables, Allowance for doubtful accounts, End of period	$ 4.4	$ 4.8