Consolidated Statements of Equity (Parenthetical) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jan. 25, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Common stock, par value (USD per share)		$ 1	$ 1	$ 1	$ 1	$ 1
Dividends declared per common share (USD per share)	$ 0.90	$ 0.90	$ 0.85	$ 2.70	$ 2.47
Comprehensive income attributable to redeemable noncontrolling interests		$ 65	$ 64	$ 183	$ 195