Restructuring and Other Related Charges - Schedule of Changes to Restructuring-Related Liabilities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	$ 51
Restructuring and other related charges	35	$ 22
Balance at the end of the period	33
Americas
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	0
Balance at the end of the period	4
International
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	51
Balance at the end of the period	29
Personnel Related
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	19
Balance at the end of the period	23
Facility Related
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	3
Balance at the end of the period	3
Other
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period	29
Balance at the end of the period	7
Global Rightsizing
Restructuring Reserve [Roll Forward]
Restructuring and other related charges	28
Restructuring payment/utilization:	(46)
Global Rightsizing | Americas
Restructuring Reserve [Roll Forward]
Restructuring and other related charges	12
Restructuring payment/utilization:	(8)
Global Rightsizing | International
Restructuring Reserve [Roll Forward]
Restructuring and other related charges	16
Restructuring payment/utilization:	(38)
Global Rightsizing | Personnel Related
Restructuring Reserve [Roll Forward]
Restructuring and other related charges	18
Restructuring payment/utilization:	(14)
Global Rightsizing | Facility Related
Restructuring Reserve [Roll Forward]
Restructuring and other related charges	1
Restructuring payment/utilization:	(1)
Global Rightsizing | Other
Restructuring Reserve [Roll Forward]
Restructuring and other related charges	9
Restructuring payment/utilization:	$ (31)