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Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Operating activities:    
Net income (loss) $ 968 $ (5,329)
Adjustments to reconcile net income (loss) to net cash provided by operations:    
Net change in operating assets and liabilities (1,268) (1,351)
Depreciation and amortization 986 1,057
Impairment of long-lived assets 980 159
Deferred income taxes - net and uncertain tax positions (489) (127)
Goodwill impairment 300 6,100
Impairment of equity investment 94  
Net gain from sale of long-lived assets and investments (88) (65)
Stock-based compensation 77 75
Research and development in process 54  
Other items 44 34
Venezuela impairment of net monetary assets   18
Net cash provided by operating activities 1,658 571
Investing activities:    
Beneficial interest collected in exchanged for securitized trade receivables 970 640
Proceeds from sales of business, investments and long-lived assets 841 1,485
Purchases of property, plant and equipment (299) (395)
Purchases of investments and other assets (56) (14)
Other investing activities (11) (286)
Net cash provided by investing activities 1,445 1,430
Financing activities:    
Repayment of long-term loans and other long-term liabilities (6,289) (583)
Proceeds from long-term loans, net of issuance costs 4,435 521
Net change in short-term debt (261) (1,477)
Dividends paid on ordinary shares (12) (691)
Dividends paid on preferred shares (10) (130)
Other financing activities (10) (21)
Dividends paid to non-controlling interests   (38)
Net cash used in financing activities (2,147) (2,419)
Translation adjustment on cash and cash equivalents (58) 29
Net change in cash and cash equivalents 898 (389)
Balance of cash and cash equivalents at beginning of period 963 988
Balance of cash and cash equivalents at end of period 1,861 599
Non-cash financing and investing activities:    
Beneficial interest obtained in exchange for securitized trade receivables $ 968 $ 591