I need help with the following, please:

Company A offers a defined benefit pension plan to its employees. Information regarding the plan is as follows. ($ in millions) Projected benefit obligation: January 1, 2020 $875 Plan assets. January 1, 2020 900 Net loss in AOCI: January 1, 2020 13 Prior service cost due to plan amendment in January 2020 75 Loss on PBO due to actuarial revision of estimates 10 Service cost for 2020 31 Cash contributions to plan assets 16 Cash payments to retirees 22 Actuary-provided discount rate 8% Expected return on plan assets 8% Actual return on plan assets 10% The prior service cost and any amortized net gain or loss is amortized over 15 years. Determine the projected benefit obligation, balance of plan assets, pension expense, and the amount o the net pension asset/liability as of December 31, 2020. Is it a net pension asset or a net pension liability