Supplemental Information - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Supplemental Information [Abstract]
Gross trade receivables aged less than one year	$ 4,920		$ 4,667
Gross receivables aged greater than one year	372		354
Other receivables	167		154
Accounts receivable net of reserves	5,009		4,718
Allowances for expected credit losses	(450)		$ (457)
Provisions for expected credit losses	$ 44	$ 53