Restructuring and Other Related Charges - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) employee	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | employee	130
Restructuring expenses	$ 64	$ 118	$ 80
Charges related to voluntary termination program		18
John F. North
Restructuring Cost and Reserve [Line Items]
Labor and Related Expense		5
Michael K. Tucker
Restructuring Cost and Reserve [Line Items]
Labor and Related Expense		2
Larry D. De Shon
Restructuring Cost and Reserve [Line Items]
Labor and Related Expense		$ 1	14
Mark J. Servodidio
Restructuring Cost and Reserve [Line Items]
Labor and Related Expense			$ 4
T21
Restructuring Cost and Reserve [Line Items]
Expected number of positions eliminated | employee	460
Number of positions eliminated | employee	455
Expected restructuring expense	$ 5
Restructuring expenses	32
T21 | Personnel Related
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	26
Limited Voluntary Opportunity Plan (“LVOP”) | Personnel Related
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 17