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Equity Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Equity compensation expense | $ 26 | $ 22
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | 106,233 |
Stock appreciation rights granted, weighted average exercise price (per share) | $ 185.28 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number | 1,346,614 |
Options exercisable, weighted average price (per share) | $ 119.60 |
Options, remaining term | 4 years 4 months 24 days |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 53 |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 10 months 24 days |
Performance Shares |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | 116,883 |
Restricted Stock Units (RSUs) |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | 81,527 |

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