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Debt and Credit Agreements - Schedule of Interest Rate Derivatives (Details)	Mar. 31, 2022 USD ($)
Fixed-to-Floating Interest Rate Swap | Fair Value Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Cumulative Fair Value Adjustment to Hedged Notes	$ (27,000,000)
Carrying Amount of Hedged Notes	773,000,000
Fixed Rate Notes Due Between 2036 and 2040
Derivative [Line Items]
Notional Value of Hedged Notes	$ 800,000,000

X

- Definition

Face (par) amount of debt instrument at time of issuance.

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