[["year ended december 31 ( in millions )", "2015", "2014", "2013"], ["cable distribution system", "$ 2424", "$ 2047", "$ 1819"], ["customer premise equipment", "3698", "3397", "2990"], ["other equipment", "756", "613", "527"], ["buildings and building improvements", "156", "97", "67"], ["total", "$ 7034", "$ 6154", "$ 5403"]]