Business Combinations - Unaudited Pro Forma Results (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Business Combinations [Abstract]
Total revenues	$ 1,750	$ 1,636	$ 5,316	$ 4,972
Net income	$ 246	$ 253	$ 859	$ 841
Net income per share:
Basic	$ 0.74	$ 0.76	$ 2.58	$ 2.54
Diluted	$ 0.73	$ 0.76	$ 2.57	$ 2.52