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Consolidated Condensed Balance Sheets (Parentheticals) - $ / shares shares in Millions	Jun. 30, 2018	Sep. 30, 2017
Treasury Stock, shares	82	80
Class A [Member]
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	900	900
Common stock, shares issued	378	378
Class B [Member]
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	900	900
Common stock, shares issued	70	70

X

- Definition

Face amount or stated value per share of common stock.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

+ References

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-Topic 210
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-Topic 505
-SubTopic 30
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