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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - ADDITIONAL DISCLOSURES (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) segment | Dec. 31, 2022 USD ($)
Restrictions on Cash and Cash Equivalents |  |
Required reserve balances by the Federal Reserve Bank | $ 0 | $ 0
Cash reserve to cover insurable claims | $ 0 | $ 4
Equity |  |
Percentage of stock dividend in excess of which are reported by transferring the par value of the stock issued from retained earnings to common stock | 20.00% |
Minimum percentage of stock dividend which are reported by transferring the par value of the stock issued from retained earnings to common stock and additional paid in capital | 20.00% |
Segment Information |  |
Number of reportable segments | segment | 6 |
Revenue, Practical Expedient |  |
Practical expedient allows incremental costs of obtaining contract when amortization period less than one year | true |

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