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COMMITMENTS AND CONTINGENCIES - Narrative (Details) | 12 Months Ended |
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Dec. 31, 2022 USD ($) claim plaintiff | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 13, 2019 claim
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Change in control event, voting stock acquired (or more) | 20.00% |  |  |
Conditional payment for unrecognized severance benefit for key executives | $ 30,500,000 |  |  |
Relative total shareholder return, period | 3 years |  |  |
Conditional payout percentage of target award | 100.00% |  |  |
Accrual related to indemnifications | $ 0 | $ 0 |  |
Google Agreement |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Expected future year's minimum contractual obligation | 440,000,000 |  |  |
Expected future year's minimum contractual obligation within any annual period | 120,000,000 |  |  |
Cash paid for data processing, outsourcing services and other agreements | 152,000,000 | 62,000,000 | $ 29,000,000 |
Amazon Web Services |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Expected future year's minimum contractual obligation | 222,000,000 |  |  |
Expected future year's minimum contractual obligation within any annual period | 52,000,000 |  |  |
Cash paid for data processing, outsourcing services and other agreements | $ 74,000,000 | $ 58,000,000 | $ 43,000,000 |
Minimum |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Benefit continuation period | 2 years |  |  |
Maximum |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Debt instrument, term | 1 year |  |  |
Data Processing, Outsourcing Services And Other Agreements | Minimum |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Data processing, outsourcing services and other agreements, expiration year | 2023 |  |  |
Data processing, outsourcing services and other agreements, estimated aggregate contractual obligation | $ 948,000,000 |  |  |
Non cancelable contractual obligations within any annual period | $ 361,000,000 |  |  |
Data Processing, Outsourcing Services And Other Agreements | Maximum |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Data processing, outsourcing services and other agreements, expiration year | 2028 |  |  |
Canada |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Pending claims, number | claim | 5 |  |  |
Pending national claims, number | claim | 4 |  |  |
Loss contingency, number of plaintiffs | plaintiff | 19,000 |  |  |
Number of claims appealed | claim |  |  |  | 1

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