Restructuring - Additional Information (Details) - USD ($)	12 Months Ended			36 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 15,000,000	$ 16,000,000	$ 21,000,000
2020 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges		10,000,000	19,000,000	$ 29,000,000
Other Restructuring And Restructuring-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	15,000,000	$ 6,000,000	$ 2,000,000
Project Phoenix
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Project Phoenix | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated aggregate restructuring charges	100,000,000			100,000,000
Expected cash payments	95,000,000
Project Phoenix | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated aggregate restructuring charges	130,000,000			130,000,000
Expected cash payments	120,000,000
Project Phoenix | Employee severance payments and other termination benefits | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated aggregate restructuring charges	80,000,000			80,000,000
Project Phoenix | Employee severance payments and other termination benefits | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated aggregate restructuring charges	105,000,000			105,000,000
Project Phoenix | Office space reductions | Minimum
Restructuring Cost and Reserve [Line Items]
Estimated aggregate restructuring charges	15,000,000			15,000,000
Project Phoenix | Office space reductions | Maximum
Restructuring Cost and Reserve [Line Items]
Estimated aggregate restructuring charges	20,000,000			$ 20,000,000
Project Phoenix | Other charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 5,000,000