DERIVATIVES (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Gross and net fair values of outstanding derivatives (in millions)
Less: counterparty netting and cash collateral, asset	$ (329)	$ (301)
Less: counterparty netting and cash collateral, liability	(364)	(371)
Total net fair value, asset	51	118
Total net fair value, liability	58	126
Collateral received netted against derivative assets	11	25
Collateral paid netted against derivative liabilities	46	95
Collateral deposited with clearinghouses and brokers	103	116
Credit risk contingent features
Net derivative liabilities with credit-risk-contingent features	8	34
Amount of collateral posted	23	64
Commodity Contracts
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	380	419
Commodity contract derivative liability, gross	422	497
Cash-flow hedges | Commodity Contracts
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross		11
Commodity contract derivative liability, gross	4	2
Cash-flow hedges | Commodity Contracts | Other current assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross		11
Cash-flow hedges | Commodity Contracts | Accrued liabilities
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	4	1
Cash-flow hedges | Commodity Contracts | Deferred credits and other liabilities
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross		1
Not designated as hedging instruments | Commodity Contracts
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	380	408
Commodity contract derivative liability, gross	418	495
Not designated as hedging instruments | Commodity Contracts | Other current assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	367	386
Not designated as hedging instruments | Commodity Contracts | Long-term receivables and other assets, net
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	13	22
Not designated as hedging instruments | Commodity Contracts | Accrued liabilities
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	407	479
Not designated as hedging instruments | Commodity Contracts | Deferred credits and other liabilities
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	$ 11	$ 16