Restructuring Programs - Additional Information (Details) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) employee	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Net current period charges	$ 21	$ 19		$ 40
Restructuring charges	23	22
Headcount reductions, number of employees | employee				1,050
Reversals	2	3		$ 5
Payments for restructuring				21	$ 49
Restructuring related reserve	13			13		$ 18
Net asset impairment charges	(19)		$ 1	(18)	11
Gain on sales of assets	(20)		$ 0	(20)	0
HCL/TCS
Restructuring Cost and Reserve [Line Items]
Payments for restructuring				2	$ 6
Severance and Related Costs
Restructuring Cost and Reserve [Line Items]
Net current period charges	21	19
Restructuring charges	22	22		44
Reversals	1	3
Other Contractual Termination Costs
Restructuring Cost and Reserve [Line Items]
Net current period charges	0	0
Restructuring charges	1	0		$ 1
Reversals	$ 1	$ 0