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Goodwill & Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Amortized Intangible Assets: |  |
Finite-Lived Intangible Assets, Gross | $ 1,071 | $ 1,071
Accumulated Amortization | (529) | (459)
Net Carrying Amount | 542 | 612
Total Indefinite Life Intangible Assets | 95 | 95
Total Other Intangible Assets | 1,166 | 1,166
Total Other Intangible Assets | 637 | 707
Customer relationships |  |
Amortized Intangible Assets: |  |
Finite-Lived Intangible Assets, Gross | 636 | 636
Accumulated Amortization | (313) | (269)
Net Carrying Amount | 323 | 367
Marketing agreement with Aetna |  |
Amortized Intangible Assets: |  |
Finite-Lived Intangible Assets, Gross | 16 | 16
Accumulated Amortization | (7) | (7)
Net Carrying Amount | 9 | 9
Distribution Agreement |  |
Amortized Intangible Assets: |  |
Finite-Lived Intangible Assets, Gross | 79 | 79
Accumulated Amortization | (75) | (72)
Net Carrying Amount | 4 | 7
Distribution and Agency relationships & Other |  |
Amortized Intangible Assets: |  |
Finite-Lived Intangible Assets, Gross | 340 | 340
Accumulated Amortization | (134) | (111)
Net Carrying Amount | $ 206 | $ 229

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