Retirement Benefits (Tables)

12 Months Ended

Sep. 30, 2011

Retirement Benefits [Abstract]

Components of net periodic benefit cost

										Other Postretirement
	Pension Benefits									Benefits
	2011			2010			2009			2011			2010			2009
Service cost	$	70.1		$	68.7		$	56.0		$	3.5		$	3.8		$	3.6
Interest cost		163.9			159.7			154.7			10.2			12.5			13.3
Expected return on plan assets		(204.5	)		(192.1	)		(191.5	)		—			—			—
Amortization:
Prior service credit		(2.2	)		(3.8	)		(3.7	)		(10.6	)		(10.6	)		(10.6	)
Net transition obligation		0.4			0.4			0.3			—			—			—
Net actuarial loss		63.7			42.1			16.9			6.4			8.4			9.5
Net periodic benefit cost	$	91.4		$	75.0		$	32.7		$	9.5		$	14.1		$	15.8

Summary of benefit obligation, plan assets and funded status

							Other Postretirement
	Pension Benefits						Benefits
	2011			2010			2011			2010
Benefit obligation at beginning of year	$	3,179.7		$	2,806.9		$	209.3		$	218.8
Service cost		70.1			68.7			3.5			3.8
Interest cost		163.9			159.7			10.2			12.5
Actuarial losses (gains)		220.5			233.0			(46.0	)		(13.4	)
Plan amendments		—			30.4			—			—
Curtailment loss		—			0.5			—			—
Plan participant contributions		5.7			4.8			11.0			10.4
Benefits paid		(182.4	)		(140.5	)		(30.2	)		(23.4	)
Currency translation and other		25.1			16.2			(0.1	)		0.6
Benefit obligation at end of year		3,482.6			3,179.7			157.7			209.3
Plan assets at beginning of year		2,486.6			2,207.8			—			—
Actual return on plan assets		50.3			213.8			—			—
Company contributions		184.7			181.2			19.2			13.0
Plan participant contributions		5.7			4.8			11.0			10.4
Benefits paid		(182.4	)		(140.5	)		(30.2	)		(23.4	)
Currency translation and other		28.0			19.5			—			—
Plan assets at end of year		2,572.9			2,486.6			—			—
Funded status of plans	$	(909.7	)	$	(693.1	)	$	(157.7	)	$	(209.3	)

Net amount on balance sheet consists of:

Net amount on balance sheet consists of:
Prepaid pension	$	4.3		$	28.3		$	—		$	—
Compensation and benefits		(9.4	)		(8.8	)		(16.5	)		(17.9	)
Retirement benefits		(904.6	)		(712.6	)		(141.2	)		(191.4	)
Net amount on balance sheet	$	(909.7	)	$	(693.1	)	$	(157.7	)	$	(209.3	)

Amounts included in accumulated other comprehensive loss, net of tax

							Other Postretirement
	Pension						Benefits
	2011			2010			2011			2010
Prior service credit	$	(2.1	)	$	(3.3	)	$	(28.4	)	$	(35.0	)
Net actuarial loss		1,038.0			834.4			26.2			58.6
Net transition (benefit) obligation		(0.1	)		0.2			—			—
Total	$	1,035.8		$	831.3		$	(2.2	)	$	23.6

Net periodic benefit assumptions

										Other Postretirement
	Pension Benefits									Benefits
	September 30,									September 30,
	2011			2010			2009			2011			2010			2009
U.S. Plans
Discount rate		5.60	%		6.20	%		6.75	%		5.10	%		6.00	%		6.50	%
Expected return on plan assets		8.00	%		8.00	%		8.00	%		—			—			—
Compensation increase rate		4.00	%		4.30	%		4.20	%		—			—			—
Non-U.S. Plans
Discount rate		4.14	%		4.67	%		5.49	%		4.75	%		5.00	%		6.00	%
Expected return on plan assets		6.07	%		6.18	%		6.30	%		—			—			—
Compensation increase rate		3.09	%		2.88	%		3.01	%		—			—			—

							Other Postretirement
	Pension Benefits						Benefits
	September 30,						September 30,
	2011			2010			2011			2010
U.S. Plans
Discount rate		5.20	%		5.60	%		4.90	%		5.10	%
Compensation increase rate		4.00	%		4.00	%		—			—
Healthcare cost trend rate(1)		—			—			8.50	%		9.00	%
Non-U.S. Plans
Discount rate		4.15	%		4.14	%		4.10	%		4.75	%
Compensation increase rate		3.03	%		3.09	%		—			—
Healthcare cost trend rate(2)		—			—			7.12	%		7.56	%

(1)

The healthcare cost trend rate reflects the estimated increase in gross medical claims costs. As a result of the plan amendment adopted effective October 1, 2002, our effective per person retiree medical cost increase is zero percent beginning in 2005 for the majority of our postretirement benefit plans. For our other plans, we assume the gross healthcare cost trend rate will decrease to 5.50% in 2017.

(2)

Decreasing to 4.50% in 2017.

Weighted-average asset allocations by asset category and investments measured at fair value

	Allocation		Target			September 30,
Asset Category	Range		Allocation			2011			2010
Equity Securities		30% – 65%		55	%		54	%		56	%
Debt Securities		35% – 50%		41	%		41	%		40	%
Other		0% – 25%		4	%		5	%		4	%

	Level 1		Level 2		Level 3		Total
Cash	$	23.8	$	—	$	—	$	23.8
Common stock		535.6		—		—		535.6
Corporate debt		—		399.7		—		399.7
Government securities		248.2		—		—		248.2
Common collective trusts		—		887.1		—		887.1
Registered investment companies		—		335.1		—		335.1
Private equity investments		—		—		85.0		85.0
Insurance contracts		—		—		27.8		27.8
Other		—		22.6		8.0		30.6
Total plan investments	$	807.6	$	1,644.5	$	120.8	$	2,572.9

	Level 1		Level 2		Level 3		Total
Cash	$	71.6	$	—	$	—	$	71.6
Common stock		573.0		—		—		573.0
Corporate debt		—		363.1		—		363.1
Government securities		222.1		—		—		222.1
Common collective trusts		—		803.5		—		803.5
Registered investment companies		—		326.9		—		326.9
Private equity investments		—		—		62.2		62.2
Insurance contracts		—		—		29.4		29.4
Other		—		23.5		11.3		34.8
Total plan investments	$	866.7	$	1,517.0	$	102.9	$	2,486.6

Summary of changes in fair market value of the plan

								Purchases,
	Balance				Unrealized			sales,			Balance
	October 1,		Realized		gains			issuances, and			September 30,
	2010		gains		(losses)			settlements, net			2011
Private equity investments	$	62.2	$	3.2	$	13.3		$	6.3		$	85.0
Insurance contracts		29.4		—		(4.7	)		3.1			27.8
Other		11.3		—		0.2			(3.5	)		8.0
	$	102.9	$	3.2	$	8.8		$	5.9		$	120.8

The table below sets forth a summary of changes in fair market value of our pension plans’ Level 3 assets for the year ended September 30, 2010.

							Purchases,
	Balance						sales,			Balance
	October 1,		Realized		Unrealized		issuances, and			September 30,
	2009		gains		gains		settlements, net			2010
Private equity investments	$	43.1	$	1.2	$	6.8	$	11.1		$	62.2
Insurance contracts		27.4		—		0.4		1.6			29.4
Other		12.3		—		0.1		(1.1	)		11.3
	$	82.8	$	1.2	$	7.3	$	11.6		$	102.9

Estimated future payments

			Other
	Pension Benefits		Postretirement Benefits
2012	$	200.7	$	16.9
2013		197.7		15.9
2014		201.5		15.3
2015		206.5		14.5
2016		210.3		13.3
2017 – 2021		1,190.0		54.8

One percentage point change in assumed health care cost trend rates

	One-Percentage				One-Percentage
	Point Increase				Point Decrease
	2011		2010		2011			2010
Increase (decrease) to total of service and interest cost components	$	0.2	$	0.2	$	(0.1	)	$	(0.2	)
Increase (decrease) to postretirement benefit obligation		2.7		2.3		(2.4	)		(1.9	)

Other required retirement benefit disclosures

	2011		2010
Projected benefit obligation	$	3,064.4	$	2,912.9
Accumulated benefit obligation		2,876.2		2,711.4
Fair value of plan assets		2,172.7		2,195.7