EARNINGS PER SHARE (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator (basic and diluted):
Net income (loss)	$ 865us-gaap_NetIncomeLoss	$ (3,426)us-gaap_NetIncomeLoss	$ 643us-gaap_NetIncomeLoss
Less: Preferred stock dividends	0	0	0
Net income (loss) available to common stockholders	$ 865	$ (3,426)	$ 643
Denominator:
Weighted-average common shares outstanding - basic (in Shares)	556,674,146	559,998,324	559,998,324
Dilutive common shares (in Shares)	1,050,790	0	0
Weighted-average common shares outstanding - diluted (in Shares)	557,724,936	559,998,324	559,998,324
Earnings (loss) per common share:
Basic (in Dollars per Share)	$ 1.55us-gaap_EarningsPerShareBasic	$ (6.12)us-gaap_EarningsPerShareBasic	$ 1.15us-gaap_EarningsPerShareBasic
Diluted (in Dollars per Share)	$ 1.55us-gaap_EarningsPerShareDiluted	$ (6.12)us-gaap_EarningsPerShareDiluted	$ 1.15us-gaap_EarningsPerShareDiluted

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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