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Investment in Unconsolidated Entities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Equity method investments, combined income statements
Revenues	$ 1,688	$ 1,735
Operating expenses	1,236	1,291
Operating income	452	444
Other income (expense), net	(4)	4
Net income	$ 448	$ 448

X

- Definition

The amount other, nonoperating income (loss) reported by an equity method investment of the entity.

+ References

No definition available.

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- Definition

The amount of the cost of sales reported by an equity method investment of the entity.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
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-Subparagraph (c)
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- Definition

The amount of gross profit (loss) reported by an equity method investment of the entity.

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The amount of net income (loss) reported by an equity method investment of the entity.

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- Definition

The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

+ References

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