. the consolidated statements of financial position as of december 31 , 2018 , and 2017 included $ 1454 million , net of $ 912 million of accumulated depreciation , and $ 1635 million , net of $ 953 million of accumulated depreciation , respectively , for properties held under capital leases . a charge to income resulting from the depreciation for assets held under capital leases is included within depreciation expense in our consolidated statements of income