Depreciation And Amortization

9 Months Ended

Sep. 30, 2011

Depreciation And Amortization

Depreciation And Amortization

3. Accumulated depreciation of owned equipment and property at September 30, 2011 and December 31, 2010 was $11.5 billion and $11.1 billion, respectively. Accumulated amortization of equipment and property under capital leases at September 30, 2011 and December 31, 2010 was $496 million and $580 million, respectively.