Pension Plans, Postretirement and Other Employee Benefits - Pension Plans, Postretirement and Other Employee Benefits - Additional Information (Details) - Jun. 30, 2015 - USD ($) $ in Millions	Total	Total
United States Pension Plans of US Entity, Defined Benefit [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer contributions		$ 1
Foreign Pension Plans, Defined Benefit [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer contributions		7
Pension Plans, Defined Benefit [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer estimated contributions		19
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer contributions	$ 5
Employer estimated contributions		$ 4