Restructuring and Impairment Charges (Restructuring Reserve) (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	$ 87.7
Restructuring Charges	78.7
Foreign Exchange and Other	2.5
Cash Paid	(80.4)
Balance at the end	88.5
Employee Termination [Member]
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	27.2
Restructuring Charges	58.1
Foreign Exchange and Other	(0.2)
Cash Paid	(55.3)
Balance at the end	29.8
Multi-employer Pension Withdrawal Obligations [Member]
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	27.9
Restructuring Charges	(0.5)
Cash Paid	(1.9)
Balance at the end	25.5
Lease Terminations and Other [Member]
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	32.6
Restructuring Charges	21.1
Foreign Exchange and Other	2.7
Cash Paid	(23.2)
Balance at the end	$ 33.2