DEBT (Details 2) (USD $)	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Other Fixed-Rate and Variable-Rate Debt Disclosures
Estimated fair value of long-term debt	$ 6,000,000,000us-gaap_LongTermDebtFairValue	$ 5,600,000,000us-gaap_LongTermDebtFairValue
Debt net carrying value	6,479,000,000	6,292,000,000
Aggregate letters of credit issued	27,000,000	25,000,000
Pro Forma
Other Variable-Rate Debt Disclosures
Percentage of change in the variable interest rates	0.125%
Effect of 1/8 percent change in interest rates	$ 2,000,000

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- Definition

Represents the increase in annual interest expense due to 1/8 percent change in variable interest rate of debt during the period.

+ References

No definition available.

+ Details

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- Definition

Represents the information pertaining to long term debt net of deferred financing cost excluding current maturities.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of change in variable interest rate of debt during the period.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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