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Comprehensive Income - Additional Information (Detail) $ in Millions	6 Months Ended
	Mar. 31, 2024 USD ($)
Equity [Abstract]
Changes in accumulated other comprehensive loss, net of related taxes amount less than	$ 1

X

- References

No definition available.

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X

- Definition

Changes in accumulated other comprehensive income loss net of related tax.

+ References

No definition available.

+ Details

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