Financial Instruments (Details 5) (USD $) In Millions	Sep. 30, 2011
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	$ 111.5
North America [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	60.7
North America [Member] | Class 1 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	48.0
North America [Member] | Class 2 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	11.6
North America [Member] | Class 3 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	1.1
EMEA [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	35.0
EMEA [Member] | Class 1 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	26.9
EMEA [Member] | Class 2 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	7.3
EMEA [Member] | Class 3 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	0.8
Asia Pacific [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	13.1
Asia Pacific [Member] | Class 1 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	9.9
Asia Pacific [Member] | Class 2 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	2.5
Asia Pacific [Member] | Class 3 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	0.7
Latin America [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	2.7
Latin America [Member] | Class 1 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	0
Latin America [Member] | Class 2 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	1.2
Latin America [Member] | Class 3 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	1.5
Class 1 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	84.8
Class 2 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	22.6
Class 3 [Member]
Finance Receivables Balance, by region and by class of internal credit rating
Finance Receivables Balance	$ 4.1