XML 28 R29.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property and Equipment (Including Concession Assets) (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross $ 8,632.7 $ 8,073.7
Accumulated depreciation and amortization 1,806.9 1,717.4
Property and equipment (including concession assets), net 6,825.8 6,356.3
Accumulated amortization 458.9 444.1
Concession assets, net of accumulated amortization 1,969.2 1,951.0
Land [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross 216.4 216.4
Concession land rights [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross 141.2 141.2
Road property [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross 6,145.1 5,955.7
Equipment [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross 1,832.8 1,436.2
Technology and other [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross 154.8 152.8
Construction in progress [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross $ 142.4 $ 171.4