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Stock-Based Compensation (Discount Stock Plan) (Details) - Discount Stock Plan
shares in Millions
 12 Months Ended
Dec. 31, 2023
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Discount to the market price, percentage 85.00%
Measurement performance period (in years) 1 year
Average 2023 purchase price per share (net of discount) (in dollars per share) | $ / shares $ 25.37
2023 number of shares purchased by employees (in shares) 0.2
Shares purchased since inception in 1982 (in shares) 24.0
Maximum shares under the plan (in shares) 27.0