Over the last decade, Apple (NASDAQ: AAPL) has returned a staggering $847 billion in cold, hard cash to shareholders via dividends and share buybacks. That’s almost enough cash to buy out Berkshire Hathaway or even scoop up four AMDs (NASDAQ:AMD). Apple has quietly returned the market caps of whole Fortune 500 companies, just to its investors.Close-up of blue logo on sign with facade of headquarters buildings in background near the headquarters of Apple Computers in the Silicon Valley, Cupertino, California ...