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JPMorgan New York Municipal Money Market Fund Average Annual Total Returns
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Morgan Shares [Member] | Morgan      
Prospectus [Line Items]      
Average Annual Return, Percent 2.22% 1.70% 1.08%