Accounts Receivable (Components Of Finance And Contract Receivables Beyond One Year) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables, net of unearned finance charges of $11.1 million and $9.4 million	$ 499.7	$ 447.9
Contract receivables, net of unearned finance charges of $18.0 million and $12.1 million	194.4	167.7
Total noncurrent finance and contract receivables	694.1	615.6
Allowances for finance receivables	(17.8)	(16.1)
Allowances for contract receivables	(2.0)	(2.6)
Total	(19.8)	(18.7)
Total long-term finance and contract receivables - net	674.3	596.9
Finance receivables - net	481.9	431.8
Contract receivables - net	192.4	165.1
Total long-term finance and contract receivables - net	$ 674.3	$ 596.9