Pension and Other Postretirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Pension settlement charge	$ (3)
Pension Benefits - U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	$ 5
Interest cost	13	16
Expected return on plan assets	(23)	(25)
Recognized net loss	12	12
Net periodic cost	6	8
Pension Benefits - Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	5
Interest cost	26	30
Expected return on plan assets	(41)	(42)
Recognized prior service credit	(3)	(3)
Recognized net loss	13	13
Net periodic cost	1	3
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	1	2
Recognized prior service credit	(10)	(8)
Recognized net loss	1	1
Net periodic cost	$ (8)	$ (5)