According to a filing from Apple with the US Securities and Exchange Commission, the iPhone maker is planning to set up another bond sale to raise money for initiatives such as US expansion, stock buybacks, and dividend payouts. Apple, which has spent some $110 billion on share repurchases over the last few years, borrows money despite having a $216 billion dollar treasury because interest rates are low enough that the company saves billions compared to "repatriating" its foreign-held funds.