Consolidated Statements of Equity (Parenthetical) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jan. 23, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
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)	$ 0.91	$ 0.91	$ 0.90	$ 1.82	$ 1.80
Comprehensive income attributable to redeemable noncontrolling interests		$ 68	$ 58	$ 138	$ 119