Commitments and Contingencies (Lawsuits and Goverment Investigations) (Details) - 6 months ended Jun. 30, 2017 $ in Millions, BRL in Billions	USD ($)	BRL
Gain And Loss Contingencies [Abstract]
Brazil tax matters estimated exposure	$ 235
Initial CADE civil fine imposed	665	BRL 2.2
Revised CADE civil fine	$ 514	BRL 1.7
Percentage of guarantees to Brazilian Court initially satisfied by letters of credit	50.00%
Percentage of guarantees to Brazilian Court initially satisfied by equity	50.00%

On September 1, 2010, CADE (Brazilian Administrative Council for Economic Defense) announced alleged.

No definition available.

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- Definition

On September 1, 2010, CADE (Brazilian Administrative Council for Economic Defense) announced alleged.

+ References

No definition available.

+ Details

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- Definition

-- None. No documentation exists for this element. --

+ References

No definition available.

+ Details

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- Definition

Percentage of guarantees to Brazilian Court initially satisfied by equity of a Brazilian Subsidiary related to CADE

+ References

No definition available.

+ Details

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- Definition

Percentage of guarantees to the Brazilian Court initially satisfied by letters of credit related to CADE

+ References

No definition available.

+ Details

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

+ Details

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