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Variable Interest Entities (Details) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 31, 2022
Variable Interest Entity [Line Items]
VIE consolidated assets	$ 62,320	$ 63,298
Unconsolidated VIE maximum exposure to loss	1,400	1,400
Consolidated Variable Interest Entities
Variable Interest Entity [Line Items]
VIE consolidated assets	621	660
VIE consolidated liabilities	$ 53	$ 65

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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