Shareholder Report, Average Annual Return (Details) 74200001170_Franklin Utilities Fund_Class A1_TSR Annual {Class A1}	12 Months Ended	60 Months Ended	120 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2025
Class A1
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class A1 (with sales charge)
Average Annual Return, Percent	9.83%	11.91%	10.51%
Without Sales Load [Member] | Class A1
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class A1
Average Annual Return, Percent	14.10%	12.77%	10.94%
Russell 3000 Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 3000 Index
Average Annual Return, Percent	17.41%	15.74%	14.71%
S&P 500 Utilities Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Utilities Index
Average Annual Return, Percent	11.20%	11.44%	10.88%
S&P 500 Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	17.60%	16.47%	15.30%