Goodwill - Schedule of Changes in Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Cost	$ 10,069	$ 10,057	$ 10,075
Accumulated impairment	(114)	(114)	(114)
Book value	9,955	9,943	$ 9,961
Goodwill [Roll Forward]
Beginning balance, book value	9,943	9,961
Changes in book value:
Acquisitions	0	8
Translation differences	12	(26)
Total changes	12	(18)
Ending balance, book value	$ 9,955	$ 9,943