Stock Benefit Plans (Monte Carlo Simulation Pricing Valuation Model For PSUs) (Details) |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Risk-free interest rate | 0.79% | 1.44% | 2.51% |
Expected dividend yield | 1.58% | 1.53% | 1.82% |
Expected volatility | 23.45% | 20.33% | 20.93% |
Performance Stock Units | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Risk-free interest rate | 0.20% | ||
Expected dividend yield | 1.70% | ||
Expected volatility | 25.00% | ||
Initial TSR | 2.60% |