Restructuring, Impairment and Transaction-Related Charges (Restructuring Activities) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 118.3	$ 114.0
Severance costs	27.2	29.5	26.7
Impairment charges	23.0	13.8	32.9
Transaction costs	4.1	2.9	41.0
Integration costs	(44.6)	(45.7)	(27.8)
Other restructuring charges	19.4	22.1	19.1
Restructuring, impairment and transaction-related charges	118.3	114.0	147.5
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	27.2	29.5
Full-time Equivalent [Member]
Restructuring Cost and Reserve [Line Items]
Facilities sold	16
Number of positions eliminated	6,300
Recovery of Uncollectible Receivables [Member]
Restructuring Cost and Reserve [Line Items]
Integration costs	15.6
Other restructuring charges	(2.4)
Defined Benefit Plan, Curtailments (Gain) Loss [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring charges	(12.8)	(7.0)	(3.4)
Facilities Idled [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring charges	19.3	15.1	13.5
Equipment and Infrastructure Removal Costs [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring charges	7.3	7.7	1.6
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring charges	8.0	6.3	7.4
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 19.4	$ 22.1
Canadian Operations, Excluding Vancouver [Member]
Restructuring Cost and Reserve [Line Items]
Facilities sold	7