XML 87 R71.htm IDEA: XBRL DOCUMENT v3.3.1.900
Employee Benefit Plans - Summary of Changes in Fair Value of Plan's Level Three Assets (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year $ 660  
Fair value of plan assets at end of year 601 $ 660
Fair Value, Inputs, Level 3 [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year 108 107
Actual return on plan assets still held at reporting date 3 14
Purchases, sales and settlements 2 5
Currency translation adjustments (14) (18)
Fair value of plan assets at end of year $ 99 $ 108