Investments - Schedule of Carrying Value of Investments (Parentheticals) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 31, 2022
Disclosure Of Investments Other Than Investments Accounted For Using Equity Method [Abstract]
Uncalled capital commitments outstanding	$ 11	$ 4

Disclosure of investments other than investments accounted for using equity method.

No definition available.

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