Quarterly report pursuant to Section 13 or 15(d)

RECENT ACCOUNTING PRONOUNCEMENTS - Narratives (Details)

v3.8.0.1
RECENT ACCOUNTING PRONOUNCEMENTS - Narratives (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Hedge margin liabilities $ 0   $ 17
Income Tax Expense (Benefit)      
Income tax benefit (316) $ (544)  
Retained earnings 6,973   5,852
Accumulated other comprehensive loss (5,638) (4,462) (4,867)
Non-Current Investments and Restricted Cash 311   483
Operating Leases, Future Minimum Payments Due     1,637
Revenues 17,113 15,510  
Operating expenses $ 15,593 $ 13,893  
Restatement      
Income Tax Expense (Benefit)      
Retained earnings     735
Accumulated other comprehensive loss     $ 735