PENSOION AND OTHER POSTRETIREMENT BENEFITS 4 (Details)	Dec. 31, 2021
Fixed Income Securities [Member] | Minimum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	55.00%
Fixed Income Securities [Member] | Maximum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	70.00%
Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	25.00%
Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	40.00%
Real Estate [Member] | Minimum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	5.00%
Real Estate [Member] | Maximum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	10.00%
Other than Securities Investment [Member] | Minimum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	10.00%
Other than Securities Investment [Member] | Maximum [Member]
Defined Benefit Plan Plans With Benefit Obligations In Excess of Plan Assets Paragraph Details [Line Items]
Target allocations percentage	20.00%