Pension Plans, Postretirement and Other Employee Benefits - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
US Pension
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer contributions	$ 1
Foreign Pension
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer contributions	3
Pension Plan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer estimated contributions	38
US Postretirement
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer contributions	2
Employer estimated contributions	$ 7