Benefit Plans (Details 1) (USD $) In Thousands	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Pension Plans [Member]
Change in benefit obligation and fair value of plan assets
Beginning obligation	$ 1,911,295	$ 1,635,334
Service cost	88,692	72,901	55,004
Interest cost	93,228	90,432	87,480
Plan amendments	(3,683)	60
Benefits paid	(108,381)	(101,394)
Actuarial loss	22,146	224,890
Other, includes translation	(6,856)	(10,928)
Benefit obligation at September 30	1,996,441	1,911,295	1,635,334
Beginning fair value	1,413,848	1,209,135
Actual return on plan assets	1,391	109,310
Employer contribution	53,505	207,775
Other, includes translation	(7,633)	(10,978)
Ending fair value	1,352,730	1,413,848	1,209,135
Funded Status at September 30:
Unfunded benefit obligation	(643,711)	(497,447)
Amounts recognized in the Consolidated Balance Sheets at September 30:
Other	3,217	143
Salaries, wages and related items	(6,042)	(6,492)
Long-term Employee Benefit Obligations	(640,886)	(491,098)
Net amount recognized	(643,711)	(497,447)
Amounts recognized in Accumulated other comprehensive (loss) income before income taxes at September 30:
Net transition asset	398	513
Prior service credit	9,193	6,530
Net actuarial loss	(911,146)	(843,284)
Net amount recognized	(901,555)	(836,241)
Other Postretirement Benefit [Member]
Change in benefit obligation and fair value of plan assets
Beginning obligation	260,124	249,593
Service cost	5,842	5,007	3,441
Interest cost	13,143	14,190	15,338
Plan amendments		(6,702)
Benefits paid	(25,776)	(25,046)
Actuarial loss	8,277	16,233
Other, includes translation	7,848	6,849
Benefit obligation at September 30	269,458	260,124	249,593
Beginning fair value	0	0
Ending fair value	0	0	0
Funded Status at September 30:
Unfunded benefit obligation	(269,458)	(260,124)
Amounts recognized in the Consolidated Balance Sheets at September 30:
Other	0	0
Salaries, wages and related items	(18,188)	(17,875)
Long-term Employee Benefit Obligations	(251,270)	(242,249)
Net amount recognized	(269,458)	(260,124)
Amounts recognized in Accumulated other comprehensive (loss) income before income taxes at September 30:
Net transition asset	0
Prior service credit	6,013	6,699
Net actuarial loss	(70,653)	(67,009)
Net amount recognized	$ (64,640)	$ (60,310)

The net increase or decrease attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency. Also includes other, immaterial net increases or decreases not separately disclosed.

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The pretax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

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Of the original amount of transition assets as of the date FAS 87 or 106 was initially applied, (a) the fair value of plan assets plus any recognized accrued pension or other postretirement benefit cost or less any recognized prepaid pension or other postretirement benefit cost in excess of (b) the benefit obligation, the portion of which has yet to be recognized as components of net periodic benefit cost. Of the original amount of transition obligations as of the date FAS 87 or 106 was initially applied, (a) the benefit obligation in excess of (b) the fair value of plan assets plus any recognized accrued pension or other postretirement benefit cost or less any recognized prepaid pension or other postretirement benefit cost, the portion of which has yet to be recognized as components of net periodic benefit cost. This amount is pretax.

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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The aggregate net amount recognized in the balance sheet associated with the defined benefit plan(s). Will normally be the same as the Defined Benefit Plan, Funded Status of Plan, Total.

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This represents the entire assets recognized in the balance sheet that are associated with the defined benefit plans.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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The increase in the fair value of plan assets from contributions made by the employer.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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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 amount of increase or decrease due to a change in the terms of an existing 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 Accounting Standards Codification

-Glossary Plan Amendment

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-Name Statement of Financial Accounting Standard (FAS)

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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.

+ References

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For a classified balance sheet, the amount recognized in balance sheet as a current liability associated with an underfunded defined benefit plan.

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- Definition

This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.

+ References

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