Financing Receivables - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Days Before Considered Past Due or Delinquent	90 days		90 days
Net receivables derecognized	$ 68.0		$ 68.0		$ 92.1
Pre-tax loss from sale of receivables	0.8	0.9	2.2	1.5
Proceeds from transfers of receivables to the purchaser	241.9	323.1	704.8	573.9
Payment to the Purchaser	251.3	271.2	729.0	516.0
Sale of receivables, deferred purchase price			92.5		17.6
Deferred purchase price receivable collection period	30 days		30 days
Delinquencies and credit losses on receivables sold	(0.4)	0.1	(0.6)	0.2
Cash inflows related to the deferred purchase price receivable	70.0	76.0	206.6	141.3
Gross receivables sold
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables sold	277.9	494.2	844.1	759.3
Net receivables sold
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables sold	245.2	423.7	749.5	665.4
Other assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Long-term trade financing receivables	142.4		142.4		131.2
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash investment purchaser allowed to have in transferors receivables	100.0		100.0
Payment to the Purchaser, servicing fees	$ 0.1	$ 0.1	$ 0.4	$ 0.1