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INCOME TAXES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Feb. 15, 2022
Income Taxes Disclosure [Line Items] |  |  |  |
Increased in effective income tax rate | 3.00% |  |  |
Effective income tax rate | 26.00% | 23.00% | 24.00% |
Net operating losses (federal and state) | $ 7 | $ 3 |  |
Tax credits (federal, state and foreign) | 7 | 6 |  |
Excess tax benefits | 13 | 10 | $ 9 |
Capital Loss Carryforward |  |  |  |
Income Taxes Disclosure [Line Items] |  |  |  |
State tax credit carryforwards | 3 |  |  |
Zenefits |  |  |  |
Income Taxes Disclosure [Line Items] |  |  |  |
Net operating losses (federal and state) |  |  |  | $ 158
Tax credits (federal, state and foreign) |  |  |  | 11
Valuation allowances of net operating losses (federal and state) |  |  |  | 149
Valuation allowance related to tax credit carryforwards (federal, state and foreign) |  |  |  | $ 9
2019 Equity Incentive Plan |  |  |  |
Income Taxes Disclosure [Line Items] |  |  |  |
Excess tax benefits | 3 |  |  |
Federal |  |  |  |
Income Taxes Disclosure [Line Items] |  |  |  |
Net operating loss carryforwards | 2 |  |  |
State and Local Jurisdiction |  |  |  |
Income Taxes Disclosure [Line Items] |  |  |  |
Net operating loss carryforwards | 94 | 45 |  |
State tax credit carryforwards | 5 | $ 6 |  |
Canada |  |  |  |
Income Taxes Disclosure [Line Items] |  |  |  |
State tax credit carryforwards | $ 2 |  |  |

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