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 .
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table: 2014 2013 2012
table: Cash, cash equivalents and marketable securities $155,239 $146,761 $121,251
table: Property, plant and equipment, net $20,624 $16,597 $15,452
table: Long-term debt $28,987 $16,960 $0
table: Working capital $5,083 $29,628 $19,111
table: Cash generated by operating activities $59,713 $53,666 $50,856
table: Cash used in investing activities $(22,579) $(33,774) $(48,227)
table: Cash used in financing activities $(37,549) $(16,379) $(1,698)
question: Analyse this data from a financial earnings document. what was the change in amount of long term debt between 2014 and 2012?