Acquisitions and Dispositions (Pro-Forma Information) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Business Combination and Asset Acquisition [Abstract]
Revenue	$ 5,878	$ 5,478	$ 11,855	$ 11,145
Net income attributable to the Company	$ 1,043	$ 970	$ 2,294	$ 2,032
Basic net income per share attributable to the Company (in dollars per share)	$ 2.11	$ 1.94	$ 4.64	$ 4.05
Diluted net income per share attributable to the Company (in dollars per share)	$ 2.09	$ 1.92	$ 4.59	$ 4.00