XML 128 R104.htm IDEA: XBRL DOCUMENT v3.3.1.900
Leases (details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Leases disclosure      
Rent expense $ 202 $ 215 $ 196
Future minimum annual rental payments due for 2016 159    
Future minimum annual rental payments due for 2017 139    
Future minimum annual rental payments due for 2018 102    
Future minimum annual rental payments due for 2019 80    
Future minimum annual rental payments due for 2020 60    
Future minimum annual rental payments due for 2021 and thereafter 114    
Approximate aggregate future sublease rental income that will partially offset the lease commitments $ 6