Condensed Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Property, plant and equipment, net of accumulated depreciation	$ 22,414	$ 22,245
Other assets, net of accumulated amortization	$ 1,098	$ 1,046
Common stock, par value (in dollars per share)	$ 5.00	$ 5.00
Common stock, shares authorized (in shares)	1,200,000,000	1,200,000,000
Common stock, shares, issued (in shares)	1,012,261,159	1,012,261,159
Treasury stock, shares (in shares)	398,878,880	402,746,136