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Derivative Financial Instruments - Narrative (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2021 USD ($) property | Mar. 31, 2021 USD ($) property derivativeHeld | Sep. 30, 2022 USD ($) | Sep. 30, 2022 USD ($) | Aug. 31, 2022 USD ($) derivativeHeld | Apr. 30, 2022 derivativeHeld | Dec. 31, 2021 derivativeHeld | May 31, 2021 property | Apr. 30, 2021 USD ($) | Apr. 30, 2021 derivativeHeld | Apr. 30, 2021 instrument
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Asset at fair value, changes in fair value resulting from changes in assumptions |  |  |  | $ 24,000,000 |  |  |  |  |  |  |
Interest rate swap instruments |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of interest-rate contracts held | derivativeHeld |  |  |  |  |  |  | 0 |  |  |  |
Interest rate swap instruments | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of interest-rate contracts held | derivativeHeld |  |  |  |  | 2 |  |  |  |  |  |
Derivative amount terminated |  |  |  |  | $ 500,000,000 |  |  |  |  |  |
Interest rate swap instruments | Designated as Hedging Instrument | Cash Flow Hedging |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of interest-rate contracts held | derivativeHeld |  |  |  |  |  | 2 |  |  |  |  |
Interest rate cap instruments | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of interest-rate contracts held |  |  |  |  |  |  |  |  |  | 2 | 2
Derivative amount terminated |  |  |  |  |  |  |  |  | $ 142,000,000 |  |
Increase in the fair value of the interest rate cap agreements |  |  | $ 0 | $ 2,000,000 |  |  |  |  |  |  |
Mortgage Debt |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Repayments of secured debt | $ 64,000,000 | $ 39,000,000 |  |  |  |  |  |  |  |  |
Number of assets classified as discontinued operations | property | 2 | 2 |  |  |  |  |  | 6 |  |  |
Mortgage Debt | Interest rate swap instruments |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of interest rate derivatives terminated | derivativeHeld |  | 2 |  |  |  |  |  |  |  |  |

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- Definition Amount of increase (decrease) in fair value from changes in the assumptions or model used to calculate the fair value of a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References No definition available. + Details
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