These corporate giants preside over businesses that pour money into the economy in numerous ways. As publicly traded companies widely held by investors around the world, one of their major functions is to return value to shareholders — which many of them have done for years.

Despite the daily ups and downs of the stock market — and some very public spats with investors who didn’t think management was doing enough to maximize value — some of Wall Street’s marquee names have a lengthy track record of doling out billions to owners of their stock. In fact, CNBC found the top 10 companies with the best track record with investors have returned nearly $3 trillion to investors collectively over their history.

Using data from Factset, CNBC took a look by decade to find out which of Corporate America’s behemoths have given the most back to their shareholders. The S&P 500 Index companies on this list were ranked on the basis of the total cash returned, calculated as a sum of the total dividend and total share buyback.

The economic boom that took place during the decade saw Exxon – the largest of the U.S.’s ‘Big Oil’ companies – return more money to investors than any other corporate entity. That feat was accomplished on what was the smallest fraction of any company’s total sales. Microsoft and General Electric weren’t far behind, and as a percentage of sales even outpaced Exxon.

By the time “Y2K” concerns were wiped away, the technological revolution had begun to dominate American households and industries. Legacy tech giants like Microsoft and Apple arrived on the big stage, and were a boon for investor portfolios. The Seattle-based software giant returned nearly a third of its sales that decade to shareholders, in the form of dividends and stock buybacks. However, Exxon still led the way, while the iPhone’s growing ubiquity powered Apple into the top 3.