XML 42 R3.htm IDEA: XBRL DOCUMENT v3.8.0.1
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Accounts receivable, allowance for doubtful accounts $ 90 $ 111
Other intangible assets, accumulated amortization 563 519
Service Concession Asset, Accumulated Depreciation $ 182 $ 114
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 1,200,000,000 1,200,000,000
Common stock, shares issued (in shares) 816,312,913 816,061,123
Common stock, shares outstanding (in shares) 660,386,566 659,182,232
Treasury stock, shares (in shares) 155,926,347 156,878,891
Variable Interest Entity [Line Items]    
Non-recourse debt - current, balance at variable interest entities $ 2,257 $ 1,303
Consolidated Variable Interest Entities [Member]    
Variable Interest Entity [Line Items]    
Non-recourse debt - current, balance at variable interest entities 439 273
Non-recourse debt - noncurrent, balance at variable interest entities $ 1,305 $ 1,502