Acquisitions and Dispositions of Businesses - Schedule of Net Assets Acquired (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Assets acquired:
Goodwill	$ 8,245	$ 8,292
2023 And 2022 Acquisitions
Business Acquisition [Line Items]
Cash	18
Deferred and contingent consideration	5
Aggregate consideration transferred	23
Assets acquired:
Goodwill	9
Intangible assets	16
Other assets	4
Total assets acquired	29
Liabilities assumed:
Total liabilities assumed	6
Net assets acquired	23
Cash and cash equivalents	$ 2