Acquisitions and Dispositions of Businesses - Schedule of Net Assets Acquired (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 19, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets acquired
Goodwill		$ 8,414	$ 8,292	$ 8,434
2022 And 2021 Acquisitions
Consideration transferred
Cash		38
Deferred and contingent consideration		12
Aggregate consideration transferred		50
Assets acquired
Goodwill		23
Intangible assets		25
Other assets		14
Total assets acquired		62
Liabilities assumed
Total liabilities assumed		12
Net assets acquired		50
Cash and cash equivalents		$ 5
NFP
Consideration transferred
Aggregate consideration transferred	$ 7,000