* Euro dips briefly vs dlr after Moody's cuts Greece
* Rise in U.S. yields, BOJ remarks support dlr/yen
* Eyes on U.S. GDP, U.S. existing home sales
(Adds quote, updates prices)
By Tamawa Desai
LONDON, Dec 22 (Reuters) - The dollar eased against the euro on Tuesday but remained well-supported after hitting a two-month high against the yen as U.S. bond yields surged on expectations for U.S. economic growth.
The euro briefly trimmed gains against the dollar after U.S. ratings firm Moody's cut Greece's rating by one notch to A2 from A1. [ID:nLDE5BH149]
