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COMMITMENTS AND CONTINGENCIES (Details) |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 13, 2023 USD ($) | Dec. 31, 2023 USD ($) claim plaintiff | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2017 claim consumer | 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 |  | $ 34,300,000 |  |  |  |
Relative total shareholder return, period |  | 3 years |  |  |  |
Conditional payout percentage of target award |  | 100.00% |  |  |  |
Accrual related to indemnifications |  | $ 0 | $ 0 |  |  |
Settled Litigation | 2017 Cybersecurity Incident |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |
Penalty paid | $ 13,500,000 |  |  |  |  |
Google Agreement |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |
Expected future year's minimum contractual obligation |  | 1,000,000,000 |  |  |  |
Expected future year's minimum contractual obligation within any annual period |  | 228,000,000 |  |  |  |
Cash paid for data processing, outsourcing services and other agreements |  | 171,000,000 | 152,000,000 | $ 62,000,000 |  |
Amazon Web Services |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |
Expected future year's minimum contractual obligation |  | 173,000,000 |  |  |  |
Expected future year's minimum contractual obligation within any annual period |  | 52,000,000 |  |  |  |
Cash paid for data processing, outsourcing services and other agreements |  | $ 52,000,000 | $ 74,000,000 | $ 58,000,000 |  |
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 |  | 2024 |  |  |  |
Data processing, outsourcing services and other agreements, estimated aggregate contractual obligation |  | $ 1,400,000,000 |  |  |  |
Non cancelable contractual obligations within any annual period |  | $ 405,000,000 |  |  |  |
Data Processing, Outsourcing Services And Other Agreements | Maximum |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |
Data processing, outsourcing services and other agreements, expiration year |  | 2029 |  |  |  |
Canada |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |
Pending claims, number | claim |  | 5 |  |  | 5 |
Pending national claims, number | claim |  | 4 |  |  | 4 |
Loss contingency, number of plaintiffs |  | 19,000 |  |  | 19,000 |
Number of claims appealed | claim |  |  |  |  |  | 1

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