Special Items Schedule of Special Items Recorded By Segment (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		$ (2,523.9)	$ 346.7	$ 324.4
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		(2,965.0)	0.0	0.0
U.S.
Restructuring Cost and Reserve [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		(2,965.0)	0.0	0.0
U.S.(1)
Restructuring Cost and Reserve [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	$ (2,965.0)
Restructuring Charges [Member] | U.S.
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		3.2	0.0	0.0
Restructuring Charges [Member] | MCI [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		0.3	3.2	0.0
Restructuring Charges [Member] | Canada
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		4.0	2.1	7.6
Restructuring Charges [Member] | Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		(0.9)	3.0	3.7
Restructuring Charges [Member] | Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		0.7	0.0	0.3
Other Employee-Related Costs [Member] | Canada
Restructuring Cost and Reserve [Line Items]
Pension Expense		9.0	0.0	0.0
Asset Abandonment [Member] | U.S.
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		2.7	0.0	0.0
Asset Abandonment [Member] | Canada
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		5.0	25.1	0.0
Asset Abandonment [Member] | Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		10.8	27.5	4.0
Software Abandonment [Member] | Canada
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			0.0	13.8
India Impairment [Member] | MCI [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		30.8
Brand Impairment [Member] | Canada
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		495.2
Brand Impairment [Member] | Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		0.0	275.0	360.0
China Impairment [Member] | MCI [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			3.2	0.0
Flood Insurance Reimbursement [Member] | Europe [Member]
Restructuring Cost and Reserve [Line Items]
Europe - Flood loss (insurance reimbursement), net		(9.3)	(2.4)	(1.8)
Sale of Asset [Member] | Canada
Restructuring Cost and Reserve [Line Items]
Unusual or Infrequent Item, Gain, Gross		(110.4)	0.0	0.0
Bri Loan Guarantee Adjustment [Member] | Canada
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		0.0	0.0	(63.2)
Termination Fees and Other (Gains)/Losses [Member] | Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		$ 0.0	$ 10.0	$ 0.0