Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Trade receivables, allowances	$ 444	$ 500
Preferred shares, par value (in dollars per share)	$ 1	$ 1
Preferred shares, authorized (in shares)	1,000,000	1,000,000
Preferred shares, issued (in shares)	0	0
Common shares, authorized (in shares)	2,400,000,000	2,400,000,000
Common shares, issued (in shares)	1,987,883,852	1,986,519,278
Common shares held in treasury (in shares)	253,807,494	248,724,257