Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.


schedule iii page 6 of 6 host hotels & resorts , inc. , and subsidiaries host hotels & resorts , l.p. , and subsidiaries real estate and accumulated depreciation december 31 , 2018 ( in millions ) ( b ) the change in accumulated depreciation and amortization of real estate assets for the fiscal years ended december 31 , 2018 , 2017 and 2016 is as follows: . <table class='wikitable'><tr><td>1</td><td>balance at december 31 2015</td><td>$ 5666</td></tr><tr><td>2</td><td>depreciation and amortization</td><td>572</td></tr><tr><td>3</td><td>dispositions and other</td><td>-159 ( 159 )</td></tr><tr><td>4</td><td>depreciation on assets held for sale</td><td>-130 ( 130 )</td></tr><tr><td>5</td><td>balance at december 31 2016</td><td>5949</td></tr><tr><td>6</td><td>depreciation and amortization</td><td>563</td></tr><tr><td>7</td><td>dispositions and other</td><td>-247 ( 247 )</td></tr><tr><td>8</td><td>depreciation on assets held for sale</td><td>7</td></tr><tr><td>9</td><td>balance at december 31 2017</td><td>6272</td></tr><tr><td>10</td><td>depreciation and amortization</td><td>546</td></tr><tr><td>11</td><td>dispositions and other</td><td>-344 ( 344 )</td></tr><tr><td>12</td><td>depreciation on assets held for sale</td><td>-101 ( 101 )</td></tr><tr><td>13</td><td>balance at december 31 2018</td><td>$ 6373</td></tr></table> ( c ) the aggregate cost of real estate for federal income tax purposes is approximately $ 10458 million at december 31 , 2018 . ( d ) the total cost of properties excludes construction-in-progress properties. .
Question: what is the balance of accumulated depreciation and amortization of real estate assets in 2016?

5949.0