The deal calls for Greeks, already reeling from harsh measures and economic decline, to cut back even further in exchange for more loans without which its financial system would surely collapse. The deal, which still needs approval from Greece's parliament, will be the country's third bailout in five years.

To get to a deal, Greek Prime Minister Alexis Tsipras had to overcome the fundamental mistrust of many of his allies among the 18 other countries that use the euro, known as the eurozone. Just a week earlier, at his urging, Greeks had voted in a referendum to reject many of the measures he agreed to Monday, and the deal forced him to renege on many of his election promises.

"We managed to avoid the most extreme measures," Tsipras said. "Greece will fight to return to growth and to reclaim its lost sovereignty."