Retirement Benefits (Schedule Of Defined Benefit Plan Net Periodic Benefit Cost) (Details) (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 52,000,000	$ 61,000,000
Interest cost	146,000,000	161,000,000
Expected return on plan assets	(243,000,000)	(248,000,000)
Amortization of prior service credit	0	(3,000,000)
Recognized actuarial loss	76,000,000	51,000,000
Net periodic benefit cost	31,000,000	22,000,000
Curtailment (credit)	0	(65,000,000)
Plan termination	0	0
Total cost (credit)	31,000,000	(43,000,000)
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	30,000,000	22,000,000
Interest cost	62,000,000	63,000,000
Expected return on plan assets	(92,000,000)	(86,000,000)
Amortization of prior service credit	0	(2,000,000)
Recognized actuarial loss	45,000,000	26,000,000
Net periodic benefit cost	45,000,000	23,000,000
Plan termination	0	0
Total cost (credit)	45,000,000	23,000,000
Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	22,000,000	39,000,000
Interest cost	84,000,000	98,000,000
Expected return on plan assets	(151,000,000)	(162,000,000)
Amortization of prior service credit	0	(1,000,000)
Recognized actuarial loss	31,000,000	25,000,000
Net periodic benefit cost	(14,000,000)	(1,000,000)
Curtailment (credit)	0	(65,000,000)
Total cost (credit)	(14,000,000)	(66,000,000)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,000,000	1,000,000
Interest cost	2,000,000	3,000,000
Expected return on plan assets	0	0
Amortization of prior service credit	0	0
Recognized actuarial loss	0	0
Net periodic benefit cost	3,000,000	4,000,000
Curtailment (credit)	0	0
Plan termination	(128,000,000)	0
Total cost (credit)	(125,000,000)	4,000,000
U.S. Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,000,000	0
Interest cost	1,000,000	2,000,000
Expected return on plan assets	0	0
Amortization of prior service credit	0	0
Recognized actuarial loss	0	0
Net periodic benefit cost	2,000,000	2,000,000
Plan termination	(128,000,000)	0
Total cost (credit)	(126,000,000)	2,000,000
Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	1,000,000
Interest cost	1,000,000	1,000,000
Expected return on plan assets	0	0
Amortization of prior service credit	0	0
Recognized actuarial loss	0	0
Net periodic benefit cost	1,000,000	2,000,000
Curtailment (credit)	0	0
Total cost (credit)	$ 1,000,000	$ 2,000,000

Defined Benefit Plan, Net Periodic Benefit Cost Excluding Curtailments and Plan Terminations

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- Definition

Defined Benefit Plan, Plan Termination

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- Definition

The amount of gains or losses recognized in net periodic benefit cost.

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- Definition

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

+ References

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- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512136

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 60

-Glossary Expected Return on Plan Assets

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)(3)

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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- Definition

The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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- Definition

The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

+ 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 (h)(7)

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

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Plan Curtailment

-URI http://asc.fasb.org/extlink&oid=6520938

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 15

-Paragraph 6

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ 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 (h)(1)

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

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Service Cost (Component of Net Periodic Pension Cost)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

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

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