Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 14,617	$ 13,957
Common stock, par or stated value per share (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	1,350,000,000	1,350,000,000
Common stock, shares outstanding, net of treasury shares (in shares)	224,420,699	226,320,894
Common stock, shares issued, net of treasury shares (in shares)	224,420,699	226,320,894