XML 119 R104.htm IDEA: XBRL DOCUMENT v3.3.1.900
Components of Net Postemployment Costs (Detail) - Postemployment Benefit Plans - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 7 $ 9 $ 8
Interest cost 5 6 5
Amortization of net gains     (1)
Other     (1)
Net periodic benefit cost $ 12 $ 15 $ 11