Restructuring Reserve (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	$ 87.7	$ 54.0
Restructuring Charges	91.9	136.3	65.4
Foreign Exchange and Other	0.3	1.6
Cash Paid	(101.4)	(104.2)
Balance at the end	78.5	87.7	54.0
Employee Severance
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	27.2	11.2
Restructuring Charges	66.6	76.7
Foreign Exchange and Other	(1.7)	(0.5)
Cash Paid	(68.7)	(60.2)
Balance at the end	23.4	27.2
Withdrawal from Multiemployer Defined Benefit Plan
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	27.9	13.6
Restructuring Charges	(0.4)	15.1	13.6
Cash Paid	(2.4)	(0.8)
Balance at the end	25.1	27.9	13.6
Lease Terminations And Other
Restructuring Cost and Reserve [Line Items]
Balance at the beginning	32.6	29.2
Restructuring Charges	25.7	44.5
Foreign Exchange and Other	2.0	2.1
Cash Paid	(30.3)	(43.2)
Balance at the end	$ 30.0	$ 32.6