Note 12 Unrecognized Stock Based Compensation Expense (Details) $ in Millions	3 Months Ended
Dec. 31, 2022 USD ($)
Unrecognized Compensation Cost and Weighted Average Period [Line Items]
Unrecognized compensation expense	$ 86
Weighted average period of recognition (years)	1 year 4 months 24 days

Unrecognized Compensation Cost and Weighted Average Period [Line Items]

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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