Shareholder Report, Average Annual Return (Details)	12 Months Ended		60 Months Ended	120 Months Ended
	May 31, 2025		May 31, 2025	May 31, 2025
C000000149 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	with Maximum Sales Charge - 5.75%
Average Annual Return, Percent	3.27%		12.30%	10.33%
C000000151 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	with Maximum Deferred Sales Charge - 1.00%
Average Annual Return, Percent	7.80%	[1]	12.77%	10.16%
C000000152 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class I
Average Annual Return, Percent	9.89%		13.90%	11.29%
C000174003 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class Y
Average Annual Return, Percent	9.88%		13.91%	11.28%
C000000154 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class Z
Average Annual Return, Percent	9.79%		13.85%	11.21%
Without Sales Load [Member] | C000000149 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	without Sales Charge
Average Annual Return, Percent	9.60%		13.63%	10.99%
Without Sales Load [Member] | C000000151 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	without Deferred Sales Charge
Average Annual Return, Percent	8.80%		12.77%	10.16%
Standard & Poor's 500 Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500® Index
Average Annual Return, Percent	13.52%		15.94%	12.86%

[1] The maximum contingent deferred sales charge for Class C shares is 1.00% for shares redeemed within one year of the date purchased.