Retirement Benefit Liabilities (Tables)

6 Months Ended

Mar. 31, 2012

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits [Table Text Block]

Retirement benefit liabilities consisted of the following (in millions):

	March 31,			September 30,
	2012			2011
Retiree medical liability	$	552		$	550
Pension liability		538			565
Other		26			33
Subtotal		1,116			1,148
Less: current portion (included in compensation and benefits, Note 15)		(52	)		(52	)
Retirement benefit liabilities	$	1,064		$	1,096

Schedule of Net Benefit Costs [Table Text Block]

The components of net periodic pension and retiree medical expense included in continuing operations for the three months ended March 31 are as follows:

	2012						2011
	Pension			Retiree Medical			Pension			Retiree Medical
Service cost	$	—		$	—		$	1		$	—
Interest cost		23			6			22			6
Assumed return on plan assets		(26	)		—			(28	)		—
Amortization of prior service costs		—			(2	)		—			(1	)
Recognized actuarial loss		5			6			10			7
Total expense	$	2		$	10		$	5		$	12

The components of net periodic pension and retiree medical expense included in continuing operations for the six months ended March 31 are as follows:

	2012						2011
	Pension			Retiree Medical			Pension			Retiree Medical
Service cost	$	1		$	—		$	4		$	—
Interest cost		46			12			46			13
Assumed return on plan assets		(52	)		—			(58	)		—
Amortization of prior service costs		—			(4	)		—			(4	)
Recognized actuarial loss		10			13			19			15
Total expense	$	5		$	21		$	11		$	24