The world's top economic powers have dropped a pledge to oppose trade protectionism amid pressure from the US.
The administration of President Donald Trump wants trade to more clearly benefit American companies and workers.
Finance ministers from the G20 countries meeting in the German town of Baden-Baden issued a statement that said only that countries "are working to strengthen the contribution of trade" to their economies.
Last year's meeting called on them to resist "all forms" of protectionism, which can include border tariffs and rules that keep out imports to shield domestic companies from competition.
The statement from the G20 finance ministers and central bankers helps set the tone for further global economic cooperation.
US treasury secretary Steven Mnuchin, taking part in his first international meeting since being sworn in, sought to downplay the wording.
He said the statement must reflect the discussion at the current summit. "The historical language was not really relevant," he said.
"We believe in free trade: we are one of the largest markets in the world, we are one of the largest trading partners in the world," Mr Mnuchin said.
"Having said that, we want to re-examine certain agreements... And to the extent that agreements are old agreements and need to be renegotiated, we'll consider that as well."
He said trade deals need to offer a "win-win situation".
Mr Mnuchin said the administration would be looking at relationships where the US was buying more than it could sell to its partner.
It would be more aggressive in seeking enforcement of existing rules that would benefit US workers through the World Trade Organisation (WTO), he said.
China and European countries had pushed for a stronger affirmation of cross-border trade without tariffs or barriers.
Ironically, China and some European states tend to intervene more often in private sector business than the US.
Canada took a middle approach in the talks, urging a statement supporting free trade but not taking a position on specific wording.
Host Germany dropped the no-protectionism pledge in the early drafting process ahead of the meeting, in apparent hope of not antagonising the US and finding a substitute that would also uphold free trade.
But attempts to include such language did not find agreement.
Mr Trump and other critics of free trade argue that it can cause jobs, such as in the labour-intensive manufacturing sector, to move to lower-cost countries.
Proponents say technological advances, such as automation, are more to blame for the loss of jobs.
Some advocates, like the International Monetary Fund, readily concede that the benefits of free trade have been uneven across societies, as less skilled workers lose out and the better trained prosper.
But they argue that trade restrictions will not help those left behind by the globalised economy and point to better training and education as part of the answer.
Mr Trump has already pulled the US out of a proposed free trade deal with Japan and other countries.
He has also started the process to renegotiate the North American Free Trade Agreement with Mexico and Canada.
Wolfgang Schaeuble, finance minister of Germany, argued it was not true that officials failed to find common ground.
"It's completely clear we are not for protectionism. But it wasn't clear what one or another meant by that," he said.
The G20 is an informal forum on economic cooperation made up of 19 countries plus the European Union.
The finance ministers' meeting will pave the way for a summit of national leaders in Hamburg, Germany, on July 7 and 8.