Pension Plans, Postretirement and Other Employee Benefits - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	$ 0	$ 0	$ 0
Interest cost	6	6	6
Net amortization:
Actuarial loss	5	6	4
Prior service cost	(1)	(4)	(7)
Prior period correction	0	0	9
Net pension costs	10	8	12
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	1	1	1
Interest cost	15	17	20
Expected return on plan assets	(23)	(23)	(25)
Settlement loss	72	4	21
Net amortization:
Actuarial loss	8	8	7
Net pension costs	73	7	24
Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	8	9	8
Interest cost	14	15	18
Expected return on plan assets	(20)	(21)	(23)
Settlement loss	0	0	0
Net amortization:
Actuarial loss	7	8	7
Prior service cost	1	1	2
Net pension costs	10	12	$ 12
Pension Plans, Defined Benefit | United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	15	17
Net amortization:
Actuarial loss	146	232
Pension Plans, Defined Benefit | Foreign
Defined Benefit Plan Disclosure [Line Items]
Interest cost	14	15
Net amortization:
Actuarial loss	$ 145	$ 144