XML 29 R29.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property and Equipment (Including Concession Assets) (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross $ 8,296.9 $ 8,073.7
Accumulated depreciation and amortization 1,756.0 1,717.4
Property and equipment (including concession assets), net 6,540.9 6,356.3
Accumulated amortization 451.2 444.1
Concession assets, net of accumulated amortization 1,956.4 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 6,049.4 5,955.7
Equipment [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross 1,603.4 1,436.2
Technology and other [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross 151.6 152.8
Construction in progress [Member]
   
Property, Plant and Equipment [Line Items]    
Property and equipment (including concession assets), gross $ 134.9 $ 171.4