Annual report pursuant to Section 13 and 15(d)

SHAREOWNERS' EQUITY SHAREOWNERS' EQUITY - RECLASSIFICATION FROM AOCI (Details)

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SHAREOWNERS' EQUITY SHAREOWNERS' EQUITY - RECLASSIFICATION FROM AOCI (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accumulated Translation Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax $ 161    
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax   0 0
Accumulated Net Unrealized Investment Gain (Loss) [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax 2 3 14
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax (3) (6) (24)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 66 (39) 61
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax (39) 24 (37)
Accumulated Defined Benefit Plans Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Reclassification to earnings (net of tax effect of $67, $1,876 and $378) 111 3,135 628
Other Expense [Member] | Accumulated Translation Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax 161 0 0
Tax | Accumulated Translation Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax 0 0 0
Tax | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax 39 (24) 37
Tax | Accumulated Defined Benefit Plans Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax 67 1,876 378
Net Income [Member] [Member] | Accumulated Translation Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax 161 0 0
Net Income [Member] [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax 3 6 24
Net Income [Member] [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax (66) 39 (61)
Net Income [Member] [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Reclassification to earnings (net of tax effect of $67, $1,876 and $378) (111) (3,135) (628)
Labor and Related Expense [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax (178) (5,011) (1,006)
Investment Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax 5 9 38
Interest Expense [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax (2) (3) (14)
Interest rate contracts | Interest Expense [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax (22) (22) (19)
Foreign exchange contracts | Interest Expense [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 18 24 13
Foreign exchange contracts | Revenue [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax (53) 61 (101)
Commodity contracts | Fuel Expense [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
     
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax $ (48) $ 0 $ 9