Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares
3 Months Ended 6 Months Ended
May 31, 2022
May 31, 2021
May 31, 2022
May 31, 2021
Statement of Stockholders' Equity [Abstract]        
Common shares, par value (in dollars per share) $ 1 $ 1 $ 1 $ 1
Dividends per common share (in dollars per share) $ 0.30 $ 0.20 $ 0.60 $ 0.40