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.

Text: table of contents adjustments that may result from tax examinations . however , the outcome of tax audits cannot be predicted with certainty . if any issues addressed in the company 2019s tax audits are resolved in a manner not consistent with management 2019s expectations , the company could be required to adjust its provision for income taxes in the period such resolution occurs . liquidity and capital resources the following table presents selected financial information and statistics as of and for the years ended september 28 , 2013 , september 29 , 2012 and september 24 , 2011 ( 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 . the company 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 28 , 2013 and september 29 , 2012 , $ 111.3 billion and $ 82.6 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 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 net purchases , sales and maturities of marketable securities of $ 24.0 billion and cash used to acquire property , plant and equipment of $ 8.2 billion . cash used in financing activities during 2013 consisted primarily of cash used to repurchase common stock of $ 22.9 billion and cash used to pay dividends and dividend equivalent rights of $ 10.6 billion , partially offset by net proceeds from the issuance of long-term debt of $ 16.9 billion . during 2012 , cash generated from operating activities of $ 50.9 billion was a result of $ 41.7 billion of net income and non-cash adjustments to net income of $ 9.4 billion , partially offset by a decrease in net operating assets and liabilities of $ 299 million . cash used in investing activities during 2012 of $ 48.2 billion consisted primarily of net purchases , sales and maturities of marketable securities of $ 38.4 billion and cash used to acquire property , plant and equipment of $ 8.3 billion . cash used in financing activities during 2012 of $ 1.7 billion consisted primarily of cash used to pay dividends and dividend equivalent rights of $ 2.5 billion . capital assets the company 2019s capital expenditures were $ 7.0 billion during 2013 , consisting of $ 499 million for retail store facilities and $ 6.5 billion for other capital expenditures , including product tooling and manufacturing process equipment , and other corporate facilities and infrastructure . the company 2019s actual cash payments for capital expenditures during 2013 were $ 8.2 billion. . <table class='wikitable'><tr><td>1</td><td>-</td><td>2013</td><td>2012</td><td>2011</td></tr><tr><td>2</td><td>cash cash equivalents and marketable securities</td><td>$ 146761</td><td>$ 121251</td><td>$ 81570</td></tr><tr><td>3</td><td>property plant and equipment net</td><td>$ 16597</td><td>$ 15452</td><td>$ 7777</td></tr><tr><td>4</td><td>long-term debt</td><td>$ 16960</td><td>$ 0</td><td>$ 0</td></tr><tr><td>5</td><td>working capital</td><td>$ 29628</td><td>$ 19111</td><td>$ 17018</td></tr><tr><td>6</td><td>cash generated by operating activities</td><td>$ 53666</td><td>$ 50856</td><td>$ 37529</td></tr><tr><td>7</td><td>cash used in investing activities</td><td>$ -33774 ( 33774 )</td><td>$ -48227 ( 48227 )</td><td>$ -40419 ( 40419 )</td></tr><tr><td>8</td><td>cash generated/ ( used in ) by financing activities</td><td>$ -16379 ( 16379 )</td><td>$ -1698 ( 1698 )</td><td>$ 1444</td></tr></table> .
Question: what is the total long-term debt of 2013 and 2012?

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16960.0
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