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Equity (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | $ 2,315 | $ 1,767 | $ 2,096 | $ 2,315
Net income (loss) |  |  | 350 | (356) | (185)
Other comprehensive income (loss) |  |  | 9 | (3) | (4)
Stock Repurchased and Retired During Period, Value |  | (20) |  |  | (20)
Stock-based compensation |  |  | 20 | 34 | 24
Dividends of Common Stock, Cash |  |  | 0 | 0 | (31)
Dividends Total Equity |  |  | (5) | (4) | (34)
Balance at end of the year |  |  | 2,192 | 1,767 | 2,096
Common Stock |  |  |  |  |
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | 1 | 1 | 1 | 1
Balance at end of the year |  |  | 1 | 1 | 1
Additional Paid-In Capital |  |  |  |  |
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | 4,869 | 4,876 | 4,842 | 4,869
Stock Repurchased and Retired During Period, Value |  |  |  |  | (20)
Contributions from Realogy Holdings |  |  | 51 |  |
Stock-based compensation |  |  | 20 | 34 | 24
Balance at end of the year |  |  | 4,947 | 4,876 | 4,842
Accumulated Deficit |  |  |  |  |
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | (2,507) | (3,055) | (2,695) | (2,507)
Net income (loss) |  |  | 343 | (360) | (188)
Balance at end of the year |  |  | (2,712) | (3,055) | (2,695)
Accumulated Other Comprehensive Loss |  |  |  |  |
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | (52) | (59) | (56) | (52)
Other comprehensive income (loss) | [1] |  | 9 | (3) | (4)
Balance at end of the year |  |  | (50) | (59) | (56)
Non- controlling Interests |  |  |  |  |
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | 4 | 4 | 4 | 4
Net income (loss) |  |  | 7 | 4 | 3
Noncontrolling Interest, Dividends |  |  | (5) | (4) | (3)
Balance at end of the year |  |  | 6 | 4 | 4
Realogy Group | Common Stock |  |  |  |  |
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | 0 | 0 | 0 | 0
Balance at end of the year |  |  | 0 | 0 | 0
Realogy Group | Additional Paid-In Capital |  |  |  |  |
Statement of Equity Table [Line Items] |  |  |  |  |
Balance at beginning of the year |  | $ 4,870 | 4,877 | 4,843 | 4,870
Balance at end of the year |  |  | $ 4,948 | $ 4,877 | $ 4,843
[1] | As of December 31, 2021, the Company does not have any after-tax components of accumulated other comprehensive loss attributable to noncontrolling interests.

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