Pension and Post-retirement Benefits - Net Periodic Benefit Cost (Income) (Detail) - Pension Plans [Member] - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost		$ 5	$ 5	$ 14	$ 15
Expected return on plan assets		(5)	$ (5)	(14)	(15)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		3		5
Interest cost		4		7	1
Expected return on plan assets		(6)		(10)	$ (1)
Net periodic benefit cost (income)	[1],[2]	$ 1		$ 2

[1] Net pension costs associated with plans acquired in the Combination were not material for the three and nine months ended September 30, 2018.

[2] The components of net periodic benefit cost (income) other than the service cost component are included in Other non-operating (income) expense, net in our Statements of Operations. The service cost component is included in Cost of operations and selling, general and administration expenses, in our Statements of Operations, along with other compensation costs rendered by the participating employees.