Fair Value Measurements - Interest Rate Derivatives (Details) - Designated as Hedging Instrument - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Fixed-to-Floating Interest Rate Swap | Fair Value Hedging
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liability value of fixed-to-floating interest rate swap	$ 119	$ 118
Forward Starting Interest Rate Swap | Cash Flow Hedge
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash flow hedge derivative instrument assets at fair value	$ 86	$ 127