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Interest Rate, Credit, and Market Risk Exposures (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Principal value of variable rate long term debt | $ 232 |  |  |
Securitization obligations | $ 118 | [1] | $ 106 |
Realogy Brokerage Group | Geographic Concentration Risk - California |  |  |  |
Concentration risk, geographic area, revenue | 25.00% |  | 24.00% | 25.00%
Realogy Brokerage Group | Geographic Concentration Risk - New York |  |  |  |
Concentration risk, geographic area, revenue | 21.00% |  | 20.00% | 22.00%
Realogy Brokerage Group | Geographic Concentration Risk - Florida |  |  |  |
Concentration risk, geographic area, revenue | 13.00% |  | 11.00% | 10.00%
Minimum |  |  |  |
Fixed interest rate of swaps | 2.07% |  |  |
Maximum |  |  |  |
Fixed interest rate of swaps | 3.11% |  |  |
Interest rate swap contracts |  |  |  |
Derivative, Notional Amount | $ 1,000 |  |  |
[1] | See below under the header "Securitization Obligations" for additional information.

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