Income Taxes - Undistributed Subsidiary Earnings (Details) $ in Billions	Sep. 30, 2022 USD ($)
Income Taxes
Cumulative undistributed earnings	$ 33.6
Cash, cash equivalents and intercompany deposits available to distribute but considered to be permanently reinvested	$ 7.0

Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Balance Type:	credit
Period Type:	instant