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Employee Benefit And Retirement Plans (Benefit Obligation, Fair Value Of Plan Assets And Reconciliation Of Defined Benefit Plans) (Details) - USD ($)
$ in Millions
 12 Months Ended
Nov. 30, 2020
Nov. 30, 2019
Nov. 30, 2018
Change in fair value of plan assets:      
Fair value of plan assets at beginning of year $ 0.0 $ 0.0  
Employee contributions 2.1 0.3  
Fair value of plan assets at end of year 0.0 0.0 $ 0.0
Other Postretirement Benefits [Member]      
Change in benefit obligation:      
Benefit obligation at beginning of year 67.2 62.9  
Service cost 1.9 1.8 2.0
Interest costs 2.0 2.7 2.4
Plan amendments 0.0 (0.4)  
Actuarial loss 3.9 4.1  
Benefits paid (6.4) (4.2)  
Benefit obligation at end of year 70.7 67.2 62.9
Change in fair value of plan assets:      
Employer contributions 4.3 3.9  
Employee contributions 2.1 0.3  
Other postretirement benefit liability 70.7 67.2  
United States      
Change in benefit obligation:      
Benefit obligation at beginning of year 884.8 752.6  
Service cost 3.2 2.1 17.0
Interest costs 29.3 34.4 31.6
Actuarial loss 82.1 134.6  
Benefits paid (41.4) (38.9)  
Benefit obligation at end of year 958.0 884.8 752.6
Change in fair value of plan assets:      
Fair value of plan assets at beginning of year 671.9 640.4  
Actual return on plan assets 47.3 62.2  
Employer contributions 10.4 8.2  
Fair value of plan assets at end of year 688.2 671.9 640.4
Funded status (269.8) (212.9)  
Projected benefit obligation 958.0 884.8  
Accumulated benefit obligation 945.1 874.8  
Fair value of plan assets 688.2 671.9  
Foreign Plan [Member]      
Change in benefit obligation:      
Benefit obligation at beginning of year 345.6 292.9  
Service cost 1.3 3.6 4.3
Interest costs 7.5 9.5 9.2
Employee contributions 0.0 0.6  
Actuarial loss 19.1 51.8  
Benefits paid (14.1) (14.7)  
Expenses paid (0.2) (0.3)  
Foreign currency impact 12.5 2.2  
Benefit obligation at end of year 371.7 345.6 292.9
Change in fair value of plan assets:      
Fair value of plan assets at beginning of year 340.9 306.5  
Actual return on plan assets 28.6 42.4  
Employer contributions 1.5 3.2  
Employee contributions 0.0 0.8  
Foreign currency impact 11.8 2.7  
Fair value of plan assets at end of year 368.7 340.9 $ 306.5
Funded status (3.0) (4.7)  
Projected benefit obligation 110.4 103.9  
Accumulated benefit obligation 106.5 100.4  
Fair value of plan assets $ 87.7 $ 83.6