|
COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Effects of One Percent Change in Assumed Health Care Cost Trend (Detail) (U.S. Postretirement Medical Benefits, USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2012
|
|
|
U.S. Postretirement Medical Benefits
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| Effect on total of service cost and interest cost, 1% Increase | $ 4 |
| Effect on postretirement benefit obligation, 1% Increase | 58 |
| Effect on total of service cost and interest cost, 1% Decrease | (4) |
| Effect on postretirement benefit obligation, 1% Decrease | $ (69) |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|