The declines were bigger than economists' expectations, and the dollar rose in Asian trading today.
It also set another 26-month high against the yen in Asian trading, before giving back its gains.
The dollar fell to another record low against the Japanese yen in Asian trading today.
Most of the damage to the dollar occurred in Asian and European trading.
The falling prices continued in early Asian trading today.
But in Asian trading, the dollar still rose early against the yen, though it receded later.
The dollar initially fell yesterday against the yen in Asian trading.
The intervention helped the dollar rise, after it reached a 40-year low against the yen in Asian trading.
Earlier, in Asian and European trading, the dollar had been weaker.
In Asian trading this morning, the baht immediately tumbled against the dollar.