On January 1, 2024. Medical Transport Company's accumulated postretirement benefit obligation was $200 million. At the end of 2024, retiree benefits paid were $17 million. Service cost for 2024 is $10 million. Assumptions regarding the trend of future health care costs were revised at the end of 2024 , causing the actuary to revise downward the estimate of the APBO by $6 million. The actuary's discount rate is 8%. Determine the amount of the accumulated postretirement benefit obligation at December 31, 2024. Note: Enter your answer in millions (i.e., 10,000,000 should be entered as 10)