{"pre_text": ["table of contents liquidity and capital resources the following table presents selected financial information and statistics as of and for the years ended september 27 , 2014 , september 28 , 2013 and september 29 , 2012 ( in millions ) : the company believes its existing balances of cash , cash equivalents and marketable securities will be sufficient to satisfy its working capital needs , capital asset purchases , outstanding commitments and other liquidity requirements associated with its existing operations over the next 12 months .", "to provide additional flexibility in managing liquidity , the company began accessing the commercial paper markets in the third quarter of 2014 .", "the company currently anticipates the cash used for future dividends and the share repurchase program will come from its current domestic cash , cash generated from on-going u.s .", "operating activities and from borrowings .", "as of september 27 , 2014 and september 28 , 2013 , $ 137.1 billion and $ 111.3 billion , respectively , of the company 2019s cash , cash equivalents and marketable securities were held by foreign subsidiaries and are generally based in u.s .", "dollar-denominated holdings .", "amounts held by foreign subsidiaries are generally subject to u.s .", "income taxation on repatriation to the u.s .", "the company 2019s marketable securities investment portfolio is invested primarily in highly-rated securities and its investment policy generally limits the amount of credit exposure to any one issuer .", "the policy requires investments generally to be investment grade with the objective of minimizing the potential risk of principal loss .", "during 2014 , cash generated from operating activities of $ 59.7 billion was a result of $ 39.5 billion of net income , non-cash adjustments to net income of $ 13.2 billion and an increase in net change in operating assets and liabilities of $ 7.0 billion .", "cash used in investing activities of $ 22.6 billion during 2014 consisted primarily of cash used for purchases of marketable securities , net of sales and maturities , of $ 9.0 billion ; cash used to acquire property , plant and equipment of $ 9.6 billion ; and cash paid for business acquisitions , net of cash acquired , of $ 3.8 billion .", "cash used in financing activities of $ 37.5 billion during 2014 consisted primarily of cash used to repurchase common stock of $ 45.0 billion and cash used to pay dividends and dividend equivalents of $ 11.1 billion , partially offset by net proceeds from the issuance of long-term debt and commercial paper of $ 12.0 billion and $ 6.3 billion , respectively .", "during 2013 , cash generated from operating activities of $ 53.7 billion was a result of $ 37.0 billion of net income , non-cash adjustments to net income of $ 10.2 billion and an increase in net change in operating assets and liabilities of $ 6.5 billion .", "cash used in investing activities of $ 33.8 billion during 2013 consisted primarily of cash used for purchases of marketable securities , net of sales and maturities , of $ 24.0 billion and cash used to acquire property , plant and equipment of $ 8.2 billion .", "cash used in financing activities of $ 16.4 billion during 2013 consisted primarily of cash used to repurchase common stock of $ 22.9 billion and cash used to pay dividends and dividend equivalents of $ 10.6 billion , partially offset by net proceeds from the issuance of long-term debt of $ 16.9 billion .", "apple inc .", "| 2014 form 10-k | 35 ."], "post_text": ["."], "table": [["", "2014", "2013", "2012"], ["cash cash equivalents and marketable securities", "$ 155239", "$ 146761", "$ 121251"], ["property plant and equipment net", "$ 20624", "$ 16597", "$ 15452"], ["long-term debt", "$ 28987", "$ 16960", "$ 0"], ["working capital", "$ 5083", "$ 29628", "$ 19111"], ["cash generated by operating activities", "$ 59713", "$ 53666", "$ 50856"], ["cash used in investing activities", "$ -22579 ( 22579 )", "$ -33774 ( 33774 )", "$ -48227 ( 48227 )"], ["cash used in financing activities", "$ -37549 ( 37549 )", "$ -16379 ( 16379 )", "$ -1698 ( 1698 )"]], "table_ori": [["", "2014", "2013", "2012"], ["Cash, cash equivalents and marketable securities", "$155,239", "$146,761", "$121,251"], ["Property, plant and equipment, net", "$20,624", "$16,597", "$15,452"], ["Long-term debt", "$28,987", "$16,960", "$0"], ["Working capital", "$5,083", "$29,628", "$19,111"], ["Cash generated by operating activities", "$59,713", "$53,666", "$50,856"], ["Cash used in investing activities", "$(22,579)", "$(33,774)", "$(48,227)"], ["Cash used in financing activities", "$(37,549)", "$(16,379)", "$(1,698)"]]}

Question: what was the change in amount of long term debt between 2014 and 2012?
Evidence:
table_3: the long-term debt of 2014 is $ 28987 ; the long-term debt of 2013 is $ 16960 ; the long-term debt of 2012 is $ 0 ;
Program: subtract(28987, 0)
Answer:
str_answer: 28987
exe_answer: 28987