Acquisitions and Dispositions (Pro-Forma Information) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Revenue	$ 5,384	$ 5,071	$ 10,946	$ 10,238
Net income attributable to the Company	$ 968	$ 827	$ 2,044	$ 1,817
Basic net income per share attributable to the Company (in dollars per share)	$ 1.93	$ 1.63	$ 4.07	$ 3.57
Diluted net income per share attributable to the Company (in dollars per share)	$ 1.91	$ 1.61	$ 4.03	$ 3.54