Restructuring and Other Related Charges (Summary Of Changes To Restructuring-Related Liabilities) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	$ 4
Restructuring expenses	4	$ 8
Balance at the end of the period	4
Americas
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	1
Balance at the end of the period	2
International
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	3
Balance at the end of the period	2
Restructuring expense
Restructuring Reserve [Roll Forward]
Restructuring expenses	4
Restructuring payments and utilization	(4)
Restructuring expense | Americas
Restructuring Reserve [Roll Forward]
Restructuring expenses	3
Restructuring payments and utilization	(2)
Restructuring expense | International
Restructuring Reserve [Roll Forward]
Restructuring expenses	1
Restructuring payments and utilization	$ (2)