XML 13 R3.htm IDEA: XBRL DOCUMENT v3.22.1
CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Preferred stock, par value per share $ 2.50 $ 2.50
Common stock, par value per share $ 2.50 $ 2.50