v2.3.0.15
Supplemental Financial Information (Accrued Liabilities) (Details) (USD $)
In Millions
Sep. 30, 2011
Dec. 31, 2010
Supplemental Financial Information [Abstract]  
Personnel Costs$ 138.5$ 58.0
Deferred revenue78.948.1
Contract intangibles57.45.1
Taxes47.522.4
Accrued interest37.32.1
Wreckage and debris removal21.021.0
Other100.411.6
Accrued liabilities$ 481.0$ 168.3