CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME
Net income (loss) attributable to common stock	$ (218)us-gaap_NetIncomeLoss	$ 1,390us-gaap_NetIncomeLoss
Other comprehensive income (loss) items:
Foreign currency translation losses	(1)
Unrealized gains on available for sale investment	150
Unrealized losses on derivatives		(5)
Pension and postretirement gains	2	4
Reclassification to income of realized losses on derivatives		8
Other comprehensive income, net of tax	151	7
Comprehensive income attributable to common stock	$ (67)us-gaap_ComprehensiveIncomeNetOfTax	$ 1,397us-gaap_ComprehensiveIncomeNetOfTax

Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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