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Pension Plans (Details 2) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Pension plans.
Amount, net of applicable deferred income taxes, included in other comprehensive income arising from a change in net prior service cost and net gain/loss	$ 24,161,000	$ 14,582,000	$ 41,778,000
Pension Plan, Defined Benefit [Member]
Pension plans.
Amount, net of applicable deferred income taxes, included in other comprehensive income arising from a change in net prior service cost and net gain/loss	7,600,000	2,600,000	9,000,000
United States Pension Plan of US Entity, Defined Benefit [Member]
Pension plans.
Interest cost on projected benefit obligation	7,800,000	6,600,000	7,700,000
Expected return on plan assets	(8,600,000)	(8,500,000)	(8,400,000)
Amortization of net loss	4,000,000	4,300,000	3,100,000
Net periodic cost	3,200,000	2,400,000	2,400,000
Amounts included in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during the next fiscal year
Amortization of net actuarial losses	(4,300,000)
Total	(4,300,000)
Additional year-end information for pension plans with accumulated benefit obligations in excess of plan assets
Projected benefit obligation	217,000,000	180,300,000	192,900,000
Accumulated benefit obligation	217,000,000	180,300,000	192,900,000
Fair values of plan assets	139,700,000	119,800,000	112,300,000
Expected employer contributions in next fiscal year	5,400,000
Expected future benefit payments
2015	12,200,000
2016	14,900,000
2017	13,400,000
2018	12,900,000
2019	13,400,000
2020-2024	68,300,000
Total	135,100,000
Weighted-average assumptions to determine benefit obligation:
Discount rate (as a percent)	4.00%	4.40%	3.50%
Weighted-average assumptions to determine net periodic benefit cost:
Discount rate (as a percent)	4.40%	3.50%	4.65%
Expected long-term rate of return on plan assets (as a percent)	7.50%	7.50%	7.50%
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	100.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	100.00%	100.00%
United States Pension Plan of US Entity, Defined Benefit [Member] | Equity Securities [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	45.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	58.00%	49.00%
United States Pension Plan of US Entity, Defined Benefit [Member] | Debt Securities [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	42.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	31.00%	34.00%
United States Pension Plan of US Entity, Defined Benefit [Member] | Cash and Cash Equivalents [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	3.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	1.00%	1.00%
United States Pension Plan of US Entity, Defined Benefit [Member] | Property and Other [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	10.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	10.00%	16.00%
Foreign Pension Plan, Defined Benefit [Member]
Pension plans.
Service costs	700,000	900,000	1,100,000
Interest cost on projected benefit obligation	27,900,000	23,800,000	25,600,000
Expected return on plan assets	(26,100,000)	(22,700,000)	(25,300,000)
Amortization of prior service costs	(200,000)	(200,000)	(200,000)
Amortization of net loss	4,900,000	4,000,000	2,300,000
Settlement loss recognized	400,000	2,600,000	500,000
Net periodic cost	7,600,000	8,500,000	4,000,000
Amounts included in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during the next fiscal year
Amortization of prior service credit	(200,000)	(200,000)	(200,000)
Amortization of net actuarial losses	(6,200,000)
Total	(6,000,000)
Additional year-end information for pension plans with accumulated benefit obligations in excess of plan assets
Projected benefit obligation	658,500,000	601,700,000	574,000,000
Accumulated benefit obligation	656,300,000	599,800,000	570,600,000
Fair values of plan assets	513,400,000	469,000,000	462,400,000
Expected employer contributions in next fiscal year	17,000,000
Expected future benefit payments
2015	26,500,000
2016	21,900,000
2017	26,300,000
2018	29,100,000
2019	25,800,000
2020-2024	153,300,000
Total	$ 282,900,000
Weighted-average assumptions to determine benefit obligation:
Discount rate (as a percent)	3.94%	4.44%	4.39%
Salary increase rate (as a percent)	2.38%	2.58%	2.36%
Weighted-average assumptions to determine net periodic benefit cost:
Discount rate (as a percent)	4.44%	4.39%	5.12%
Salary increase rate (as a percent)	2.58%	2.36%	2.65%
Expected long-term rate of return on plan assets (as a percent)	5.40%	5.11%	5.65%
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	100.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	100.00%	100.00%
Foreign Pension Plan, Defined Benefit [Member] | Equity Securities [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	1.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	28.00%	28.00%
Foreign Pension Plan, Defined Benefit [Member] | Debt Securities [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	47.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	33.00%	37.00%
Foreign Pension Plan, Defined Benefit [Member] | Cash and Cash Equivalents [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	1.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	3.00%	4.00%
Foreign Pension Plan, Defined Benefit [Member] | Property and Other [Member]
Target Allocations by Asset Category
Target Allocations by Asset Category (as a percent)	51.00%
Percentage of Plan Assets by Asset Category
Plan Assets by Asset Category (as a percent)	36.00%	31.00%

X

- Definition

The amount of the aggregate benefits expected to be paid in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter.

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The interest rate used to adjust for the time value of money for the plan.

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Expected rate of compensation increases (for pay-related plans).

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An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

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Expected rate of compensation increases (for pay-related plans).

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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

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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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Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

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Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

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

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If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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Amount of net gain (loss) recognized in net periodic benefit cost as a result of 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, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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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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