Financial Instruments (Finance Receivables Balance, Net Of Allowance, By Region And By Class Of Internal Credit Rating) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	$ 112.4
Class 1 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	78.6
Class 2 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	33.0
Class 3 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	0.8
North America [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	31.2
North America [Member] | Class 1 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	27.9
North America [Member] | Class 2 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	3.2
North America [Member] | Class 3 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	0.1
EMEA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	64.1
EMEA [Member] | Class 1 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	45.1
EMEA [Member] | Class 2 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	19.0
EMEA [Member] | Class 3 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance
Asia Pacific [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	11.5
Asia Pacific [Member] | Class 1 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	4.4
Asia Pacific [Member] | Class 2 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	6.9
Asia Pacific [Member] | Class 3 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	0.2
Latin America [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	5.6
Latin America [Member] | Class 1 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	1.2
Latin America [Member] | Class 2 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	3.9
Latin America [Member] | Class 3 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Balance	$ 0.5