Acquisitions and Dispositions of Businesses - Completed Dispositions (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) disposition	Sep. 30, 2023 USD ($) disposition	Sep. 30, 2024 USD ($) disposition	Sep. 30, 2023 USD ($) disposition
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Number of dispositions | disposition	2	0	5	0
Gain on disposition of business	$ 76	$ 0	$ 333	$ 0
Loss on disposition of business	$ 0	$ 0	$ 2	$ 0