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SUBSEQUENT EVENTS SUBSEQUENT EVENTS (Details) (USD $)
In Millions, unless otherwise specified |
6 Months Ended | 3 Months Ended | 12 Months Ended | 6 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
Employees
|
Jun. 30, 2014
Subsequent Event [Member]
|
Jun. 30, 2014
partial plan curtailment [Member]
Subsequent Event [Member]
|
Jun. 30, 2014
remeasurement of postretirement obligation [Member]
Subsequent Event [Member]
|
Dec. 31, 2013
Benefit Obligations [Member]
U.S. Postretirement Medical Benefits
|
Jun. 30, 2014
Benefit Obligations [Member]
U.S. Postretirement Medical Benefits
Subsequent Event [Member]
|
Dec. 31, 2014
Benefit Obligations [Member]
U.S. Postretirement Medical Benefits
Subsequent Event [Member]
|
Jun. 30, 2014
Non-National Master Agreement (Non-NMA) [Member]
Subsequent Event [Member]
Employees
|
Jun. 30, 2014
Non-National Master Agreement (Non-NMA) [Member]
defined benefit plan settlement losses [Member]
Subsequent Event [Member]
|
Mar. 31, 2014
National Master Agreement (NMA) [Member]
|
Jun. 30, 2014
National Master Agreement (NMA) [Member]
Subsequent Event [Member]
Employees
|
Jun. 30, 2014
National Master Agreement (NMA) [Member]
defined benefit plan settlement losses [Member]
Subsequent Event [Member]
|
|
| Subsequent Event [Line Items] | ||||||||||||
| Number of employees under a national master agreement and various supplemental agreements with local unions affiliated with Teamsters | 253,000 | |||||||||||
| Teamster unpaid economic benefits | $ 325 | |||||||||||
| Full-time employees affected by change in healthcare benefits | 36,000 | |||||||||||
| part-time employees affected by changes in healthcare benefits | 73,000 | |||||||||||
| other employees under collective bargaining agreements affected by changes in healthcare benefits | 16,000 | |||||||||||
| Cash transfered to fund for assumption of postretirement benefit obligation | 2,271 | 276 | 1,995 | |||||||||
| Cash transfered to fund for assumption of postretirement benefit obligation, net of tax | 1,417 | |||||||||||
| Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax | 23 | |||||||||||
| Defined Benefit Plan, Curtailments | 908 | 1,161 | ||||||||||
| Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation | 3,691 | 2,783 | 0 | |||||||||
| Subsequent Event, Description | 1,047 | 112 | 735 | 32 | 200 | |||||||
| DefinedBenefitPlanRecognizedNetGainLossDuetoSettlementsandCurtailmentsAfterTax | $ 653 | |||||||||||