|
CASH AND INVESTMENTS - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
6 Months Ended | 12 Months Ended |
|---|---|---|
|
Jun. 30, 2013
|
Dec. 31, 2012
|
|
| Gain (Loss) on Investments [Line Items] | ||
| Restricted Cash and Investments, Noncurrent | $ 406 | $ 307 |
| Fair Value Inputs, Discount Rate | 8.44% | 7.75% |
|
Self-insurance requirements [Member]
|
||
| Gain (Loss) on Investments [Line Items] | ||
| Restricted Cash and Investments, Noncurrent | 387 | 288 |
|
Variable life insurance policy
|
||
| Gain (Loss) on Investments [Line Items] | ||
| Restricted Cash and Investments, Noncurrent | $ 19 | $ 19 |
| X | ||||||||||
|
- Definition
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal. No definition available.
|
| X | ||||||||||
|
- Details
|