Pension and Other Postretirement Benefits (Details) (USD $)			3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jan. 31, 2011	Jun. 30, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Jun. 30, 2010 Other Postretirement Benefit Plans, Defined Benefit [Member]	Jun. 30, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Jun. 30, 2010 Other Postretirement Benefit Plans, Defined Benefit [Member]	Jun. 30, 2011 United States Pension Plans Of US Entity Defined Benefit Member	Jun. 30, 2010 United States Pension Plans Of US Entity Defined Benefit Member	Jun. 30, 2011 United States Pension Plans Of US Entity Defined Benefit Member	Jun. 30, 2010 United States Pension Plans Of US Entity Defined Benefit Member	Jun. 30, 2011 Foreign Pension Plans Defined Benefit Member	Jun. 30, 2010 Foreign Pension Plans Defined Benefit Member	Jun. 30, 2011 Foreign Pension Plans Defined Benefit Member	Jun. 30, 2010 Foreign Pension Plans Defined Benefit Member
Defined Benefit Plans Disclosures [Line Items]
Service Cost			$ 0	$ 0	$ 1,000,000	$ 1,000,000	$ 53,000,000	$ 51,000,000	$ 116,000,000	$ 111,000,000	$ 15,000,000	$ 13,000,000	$ 30,000,000	$ 26,000,000
Interest Cost			17,000,000	19,000,000	35,000,000	43,000,000	191,000,000	195,000,000	381,000,000	384,000,000	60,000,000	55,000,000	120,000,000	113,000,000
Expected Return on Plan Assets							(254,000,000)	(226,000,000)	(507,000,000)	(451,000,000)	(72,000,000)	(59,000,000)	(143,000,000)	(118,000,000)
Amortization of transition obligation											1,000,000	0	1,000,000	0
Amortization of Prior Service Cost			(9,000,000)	(8,000,000)	(22,000,000)	(18,000,000)	9,000,000	11,000,000	17,000,000	16,000,000	(1,000,000)	0	(1,000,000)	0
Recognition of Actuarial Losses			6,000,000	10,000,000	18,000,000	14,000,000	0	0	0	0	0	0	0	0
Settlements and Curtailments			(61,000,000)	(9,000,000)	(61,000,000)	(46,000,000)	9,000,000	0	24,000,000	0	1,000,000	0	1,000,000	4,000,000
Net Periodic Benefit Costs			(47,000,000)	12,000,000	(29,000,000)	(6,000,000)	8,000,000	31,000,000	31,000,000	60,000,000	4,000,000	9,000,000	8,000,000	25,000,000
Defined Benefit Plan, Effect of Plan Amendment on Accumulated Benefit Obligation	18,000,000
Pension And Other Post Retirement Disclosure Paragraph Details [Abstract]
Voluntary cash contributions		$ 1,000,000,000

The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan in the current remaining fiscal period. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
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The amount of the transition obligation or asset recognized in net periodic benefit cost.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of increase or decrease in the accumulated benefit obligation related to the effects of a change in the substantive terms of an existing defined benefit pension plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518

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

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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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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 or loss, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The aggregate amount of net gain or loss recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from 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. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts to cover vested benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
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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.

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