Hedging Activities - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - Derivatives designated for hedge accounting € in Millions, £ in Millions, $ in Millions, $ in Millions	Dec. 31, 2022 EUR (€)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 GBP (£)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2022 EUR (€)	Mar. 31, 2022 CAD ($)	Mar. 31, 2022 GBP (£)	Mar. 31, 2022 USD ($)
Fair Value Hedges | Derivatives designated as net investment hedges | GBP
Derivatives, Fair Value [Line Items]
Notional | £			£ 450					£ 450
Fair Value Hedges | Derivatives designated as net investment hedges | Euro Member Countries, Euro
Derivatives, Fair Value [Line Items]
Notional | €	€ 1,100					€ 0
Derivatives designated as net investment hedges | Net Investment Hedges | CAD
Derivatives, Fair Value [Line Items]
Notional		$ 500					$ 500
Derivatives designated as net investment hedges | Cash Flow Hedges | USD
Derivatives, Fair Value [Line Items]
Notional		$ 1,085					$ 1,678
Floating interest rate swaps | Fair Value Hedges | USD
Derivatives, Fair Value [Line Items]
Notional				$ 750					$ 0
Fixed interest rate swaps | Cash Flow Hedges | USD
Derivatives, Fair Value [Line Items]
Notional				$ 0	$ 500				$ 500