Number of share-based compensation plans.

No definition available.

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- Definition

Expiration period for stock options.

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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-Name Staff Accounting Bulletin (SAB)

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-Section F

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- Definition

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

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- Definition

Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Stock-based Compensation (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013 Plan	Sep. 30, 2012	Sep. 30, 2011	Jan. 23, 2013
Stock Based Compensation Activity [Line Items]
Shares authorized for issuance under 2012 Plan (in shares)				37
Shares available for issuance under the 2012 Plan (in shares)	36
Number of share-based compensation plans	4
Compensation cost charged against income from share-based compensation plans	$ 91	$ 55	$ 47
Total income tax benefit recognized for share-based compensation arrangements	36	22	19
Employee Stock Option
Stock Based Compensation Activity [Line Items]
Expiration period for stock options	10 years
Weighted-average grant-date fair value of options granted	$ 8.58	$ 8.92	$ 9.09
Total intrinsic value of options exercised	154	19	101
Cash received from exercise of stock options granted	254	40	105
Tax benefit from the exercise of stock options, which is recorded in capital in excess of par	35	3	30
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	36
Weighted average period over which unrecognized compensation cost is expected to be recognized	1 year 7 months 12 days
Stock Appreciation Rights (SARs)
Stock Based Compensation Activity [Line Items]
Payments towards exercise of SARs granted	11	2	4
Restricted (Nonvested) Stock
Stock Based Compensation Activity [Line Items]
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	16
Weighted average period over which unrecognized compensation cost is expected to be recognized	2 years 8 months 15 days
Vesting rights for nonvested restricted stock awards	50% after two years from the grant date and 50% after four years from the grant date
Performance Shares
Stock Based Compensation Activity [Line Items]
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	$ 19
Weighted average period over which unrecognized compensation cost is expected to be recognized	2 years
Minimum \| Employee Stock Option
Stock Based Compensation Activity [Line Items]
Vesting period	2 years
Minimum \| Restricted (Nonvested) Stock
Stock Based Compensation Activity [Line Items]
Vesting period	2 years
Maximum \| Employee Stock Option
Stock Based Compensation Activity [Line Items]
Vesting period	3 years
Maximum \| Restricted (Nonvested) Stock
Stock Based Compensation Activity [Line Items]
Vesting period	4 years