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Comprehensive Income (Loss)
6 Months Ended
Jun. 30, 2011
Comprehensive Income (Loss) [Abstract]  
Comprehensive Income (Loss)
7.
Comprehensive Loss

The Company reports changes in the fair value of interest rate swap agreements designated as hedging the variability of cash flows associated with floating-rate debt obligations that meet the effectiveness criteria in other comprehensive loss. Comprehensive loss was $127 million and $226 million for the three and six months ended June 30, 2011, respectively. Comprehensive loss for the three and six months ended June 30, 2011 included a $20 million and $9 million loss on the change in the fair value of interest rate swap agreements designated as cash flow hedges, respectively. Comprehensive loss was $131 million and $107 million for the three and six months ended June 30, 2010, respectively. Comprehensive loss for each of the three and six months ended June 30, 2010 included a $50 million loss on the change in the fair value of interest rate swap agreements designated as cash flow hedges.