INCOME TAXES - Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Income Taxes [Abstract]
Income tax expense	$ 106us-gaap_IncomeTaxExpenseBenefit	$ 69us-gaap_IncomeTaxExpenseBenefit
Effective income tax rate	33.70%	29.40%
Federal income tax rate	35.00%	35.00%
Deferred taxes, net	$ 586us-gaap_DeferredTaxLiabilities		$ 493us-gaap_DeferredTaxLiabilities

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Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Name Accounting Standards Codification

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-Glossary Income Tax Expense (or Benefit)

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