Acquisitions and Dispositions of Businesses - Completed Dispositions (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($) disposition	Jun. 30, 2023 USD ($) disposition	Jun. 30, 2024 USD ($) disposition	Jun. 30, 2023 USD ($) disposition	Dec. 31, 2023 USD ($)
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Number of dispositions | disposition	2	0	3	0
Gain on disposition of business	$ 257	$ 0	$ 257	$ 0
Loss on disposition of business	2	$ 0	2	$ 0
Assets held for sale	359		359		$ 354
Liabilities held for sale	64		64		$ 69
Intangibles assets held for sale	$ 156		$ 156