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Commitments And Contingencies
9 Months Ended
Sep. 30, 2012
Commitments And Contingencies [abstract]  
Commitments And Contingencies
COMMITMENTS AND CONTINGENCIES
Guarantees of Indebtedness
The payments of principal and interest on our senior notes are guaranteed by our principal operating subsidiary. The par value of the senior notes was $1,500.0 million at September 30, 2012. See guarantor consolidating financial statements in Note 14.