XML 97 R79.htm IDEA: XBRL DOCUMENT v3.22.4
Benefit Plans, Investment Strategies (Details)
12 Months Ended
Dec. 31, 2022
Investment Strategies [Abstract]  
Average rate of return on assets 9.00%
Equity Securities [Member] | Minimum [Member]  
Investment Strategies [Abstract]  
Target long-term investment portfolio mix 55.00%
Equity Securities [Member] | Maximum [Member]  
Investment Strategies [Abstract]  
Target long-term investment portfolio mix 65.00%
Fixed Income Securities [Member] | Minimum [Member]  
Investment Strategies [Abstract]  
Target long-term investment portfolio mix 30.00%
Fixed Income Securities [Member] | Maximum [Member]  
Investment Strategies [Abstract]  
Target long-term investment portfolio mix 35.00%
Other Securities [Member] | Minimum [Member]  
Investment Strategies [Abstract]  
Target long-term investment portfolio mix 0.00%
Other Securities [Member] | Maximum [Member]  
Investment Strategies [Abstract]  
Target long-term investment portfolio mix 15.00%