XML 87 R70.htm IDEA: XBRL DOCUMENT v3.6.0.2
Leases and Commitments (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Leases and Commitments      
Consolidated rental expense $ 271 $ 279 $ 303
2017 681    
2018 184    
2019 187    
2020 $ 197