Segment Reporting Total Assets (Details) (USD $) In Millions, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Total assets	$ 16,466.5	$ 12,423.8
Canada [Member]
Segment Reporting Information [Line Items]
Total assets	6,604.9	6,541.6
U.S.
Segment Reporting Information [Line Items]
Total assets	2,626.6	2,487.9
Central Europe
Segment Reporting Information [Line Items]
Total assets	4,289.9	0
U.K. [Member]
Segment Reporting Information [Line Items]
Total assets	2,401.6	2,293.4
MCI
Segment Reporting Information [Line Items]
Total assets	87.5	151.7
Corporate
Segment Reporting Information [Line Items]
Total assets	456.0	948.9
Discontinued operations
Segment Reporting Information [Line Items]
Total assets	$ 0	$ 0.3