Postretirement Benefits (Estimated Total Future Postretirement Benefit Payments, Net Of Participant Contributions And Estimated Future Medicare Part D Subsidy Receipts) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Non-U.S. Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit Payments, year 1	$ 2
Benefit Payments, year 2	2
Benefit Payments, year 3	2
Benefit Payments, year 4	3
Benefit Payments, year 5	3
Benefit Payments, year 6-10	24
U.S. Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit Payments, year 1	35
Benefit Payments, year 2	31
Benefit Payments, year 3	30
Benefit Payments, year 4	28
Benefit Payments, year 5	27
Benefit Payments, year 6-10	112
Subsidy Receipts, year 1	2
Subsidy Receipts, year 2	2
Subsidy Receipts, year 3	2
Subsidy Receipts, year 4	2
Subsidy Receipts, year 5	2
Subsidy Receipts, year 6-10	$ 8

Postretirement Benefits (Estimated Total Future Postretirement Benefit Payments, Net Of Participant Contributions And Estimated Future Medicare Part D Subsidy Receipts) (Details) (USD $)
In Millions, unless otherwise specified

Dec. 31, 2014

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Benefit Payments, year 3

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Benefit Payments, year 4

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Benefit Payments, year 5

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Benefit Payments, year 6-10

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U.S. Postretirement Benefit Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Benefit Payments, year 1

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Benefit Payments, year 2

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Benefit Payments, year 3

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Benefit Payments, year 4

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Benefit Payments, year 5

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Benefit Payments, year 6-10

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Subsidy Receipts, year 1

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Subsidy Receipts, year 2

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Subsidy Receipts, year 3

2us-gaap_PrescriptionDrugSubsidyReceiptsYearThree1
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Subsidy Receipts, year 4

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Subsidy Receipts, year 5

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Subsidy Receipts, year 6-10

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Amount of the prescription drug subsidy receipts to be received after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 60

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964

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Amount of the prescription drug subsidy receipts to be received in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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