Consolidated Statements of Equity (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (USD per share)	$ 0.85	$ 0.77	$ 1.62	$ 1.54
Comprehensive income attributable to redeemable noncontrolling interests	$ 72	$ 51	$ 131	$ 103