On January 1, 2021, Medical Transport Company’s accumulated postretirement benefit obligation was $200 million. At the end of 2021, retiree benefits paid were $17 million. Service cost for 2021 is $10...

On January 1, 2021, Medical Transport Company’s accumulated postretirement benefit obligation was $200 million. At the end of 2021, retiree benefits paid were $17 million. Service cost for 2021 is $10 million. Assumptions regarding the trend of future health care costs were revised at the end of 2021, 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, 2021.