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Significant Accounting Policies - Schedule Of Net Decrease (Increase) in Results of Operations and Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Revenue $ 2,870 $ 2,678 $ 2,520
Operating income 462 368 412
Net income $ 345 $ 276 $ 309
Earnings Per Share, Basic (in dollars per share) $ 1.63 $ 1.30 $ 1.47
Earnings Per Share, Diluted (in dollars per share) $ 1.62 $ 1.30 $ 1.47
Revision of Prior Period, Accounting Standards Update, Adjustment      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Revenue     $ 23
Operating income     23
Net income     $ 21
Earnings Per Share, Basic (in dollars per share)     $ 0.11
Earnings Per Share, Diluted (in dollars per share)     $ 0.11