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Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Millions
Oct. 31, 2022
Oct. 31, 2021
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 100,000 100,000
Preferred stock, shares issued (in shares) 5,600 5,600
Preferred stock, shares outstanding (in shares) 5,600 5,600
Preferred stock, liquidation preference $ 140 $ 140
Common Class A [Member]    
Common stock, shares authorized (in shares) 16,000,000 16,000,000
Common stock, shares issued (in shares) 6,159,886 6,066,164
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares held in Treasury (in shares) 782,901 470,430
Common Class B [Member]    
Common stock, shares authorized (in shares) 2,400,000 2,400,000
Common stock, shares issued (in shares) 733,374 686,876
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares held in Treasury (in shares) 27,669 27,669