Consolidated Statements of Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Statement of Stockholders' Equity [Abstract]
Common stock, par value (USD per share)	$ 1	$ 1	$ 1	$ 1	$ 1	$ 1	$ 1	$ 1
Dividends declared per common share (USD per share)	$ 0.96	$ 0.91	$ 2.88	$ 2.73
Comprehensive income attributable to redeemable noncontrolling interests	$ 82	$ 69	$ 235	$ 208