The euro gained versus the yen as appetite for safety declined amid speculation officials were tackling Europe’s sovereign-debt crisis. The 17-nation currency rose against the dollar after the International Monetary Fund revamped its credit-line program to help countries facing outside shocks. It fluctuated earlier as the U.S. economy grew less than estimated and ratings companies affirmed U.S. credit grades. The dollar remained lower after the Federal Reserve released minutes of its last meeting. Canada’s dollar climbed on a rise in oil, the nation’s biggest export.

Europe’s shared currency gained as European Commission President Jose Barroso said he expected the Italian government under Prime Minister Mario Monti to succeed in narrowing its budget deficit and bolstering the economy. Michel Barnier, the European Union’s financial-services chief, said he was putting finishing touches on a draft law on creditor writedowns at failing banks.

The Washington-based IMF said its new Precautionary and Liquidity Line can be tapped by countries with strong economies currently facing short-term liquidity needs. Countries with potential needs can also apply, it said.

The Dollar Index, which IntercontinentalExchange Inc. uses to track the greenback against the currencies of six major U.S. trading partners, retreated 0.3 percent to 78.170. The gauge, which is weighted 57.6 percent to movements in the euro, jumped 0.4 percent yesterday.

U.S. gross domestic product grew at a 2 percent annual rate from July through September, less than projected and down from a 2.5 percent prior estimate, Commerce Department figures showed today in Washington.