Almost 1,000 measures had been proposed that would boost global growth by 1.8 percent by 2018, nearing the ambitious goal of 2 percentage points adopted back in February.
A common concern was the risk of Europe's economic malaise pulling others down. U.S. Treasury Secretary Jack Lew cited "philosophical" differences with some of his counterparts in Europe, especially on the need for near-term stimulus.
"The concern that I have is that if the efforts to boost demand are deferred for too long, there's a risk that the headwinds get stronger and what Europe needs is some more tailwinds in the economy," said Lew.
That was not an argument that found favor with German Finance Minister Wolfgang Schaeuble who emphasized the need for structural reforms and strict budget controls.
The proposals to lift global growth will now go for formal approval at the summit of G-20 leaders in Brisbane in November.
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Chief among them was a global initiative aimed at increasing private investment in infrastructure, a particular hobby horse of the Australians who head the G-20 this year.
China gets a pass
While Europe's failings were front and center, there was surprisingly little said about China's slowdown, at least publicly. That struck some as odd given the Asian giant was just behind the United States in the size of its economy.
"Our basic point on the aspirational growth target is that with China slowing down in a structural sense... it will be exceedingly difficult to hit that (2 percent) number, given China's massive arithmetic impact," said Huw McKay, a senior international economist at Westpac.
China's finance chief, Lou Jiwei, noted that stimulus measures also brought problems such as excess capacity, environmental pollution and growing local government debt, just the latest sign that any policy easing there would be limited.
The risks that super-loose monetary policy could inflate asset bubbles was also much discussed by the G20, along with the need for the U.S. Federal Reserve to avoid spooking markets as it winds down its quantitative easing campaign.
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The Fed is widely expected to end its asset-buying program in October and to start raising interest rates next year, a marked contrast to the European Central Bank and the Bank of Japan where even more easing might be needed.
Regulators are looking at increasing the size of the capital buffer that the world's top banks need to hold to reduce the risk of a repeat of the global financial crisis.