|
EMPLOYEE BENEFIT PLANS - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
6 Months Ended | 3 Months Ended | 6 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2011
Year
CreditFacility
Person
|
Dec. 31, 2010
Person
|
Jun. 30, 2011
Pension Plans, Defined Benefit
|
Jun. 30, 2011
Pension Plans, Defined Benefit
IBT Accelerated Contribution
|
Jun. 30, 2011
Pension Plans, Defined Benefit
IBT Accelerated Contribution Required After 2011
|
Mar. 31, 2011
Other Postretirement Benefit Plans, Defined Benefit
|
Jun. 30, 2011
Other Postretirement Benefit Plans, Defined Benefit
|
Jun. 30, 2011
International Pension Benefits
|
Jun. 30, 2011
U.S. Postretirement Medical Benefits
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||||||||
| Amount contributed to company-sponsored benefit plans | $ 1,231 | $ 1,200 | $ 440 | $ 65 | |||||
| Early Retiree Reinsurance Program included in contribution to postretirement medical benefit plans | 12 | ||||||||
| Amount expect to contribute over the remainder of the year to the benefit plans | $ 24 | $ 51 | |||||||
| Number of employees under a national master agreement and various supplemental agreements with local unions affiliated with Teamsters | 250,000 | ||||||||
| Number of pilots under a collective bargaining agreement with the Independent Pilots Association | 2,800 | ||||||||
| Majority of ground mechanics not employed under agreements | 3,300 | ||||||||