Retirement Benefit Liabilities (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Sep. 30, 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

This represents the entire liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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- Definition

This represents the entire liability recognized in the balance sheet that is associated with other postretirement defined benefit plans (excluding pension plans).

+ References

+ Details

- Definition

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

+ References+ Details

- Definition

This represents the entire liability recognized in the balance sheet that is associated with the defined benefit plans.

+ References

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+ Details

- 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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