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Investments In and Advances To Affiliates (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investments in and Advances to Affiliates [Line Items]
Operating margin	$ 593	$ 509
Net income	98	74
Income (Loss) from Equity Method Investments	7	6
Minority Owned Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Revenue	167	134
Operating margin	32	35
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	11	15
Parent [Member]
Investments in and Advances to Affiliates [Line Items]
Net income	$ (24)	$ 126

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- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
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+ References

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