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Share-Based Compensation Plans (Schedule of Weighted Average Assumptions (PRSUs)) (Details) - Performance Restricted Stock Units
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years 3 years 3 years
2019      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk-free rate 2.40%    
Expected Avon volatility 54.80%    
Expected average volatility 29.90%    
Expected dividends 0.00%    
2018      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk-free rate 2.50%    
Expected Avon volatility 61.40%    
Expected average volatility 29.50%    
Expected dividends 0.00%