Answer:
Pension expense$ 10
Explanation:
($ in millions)
Service cost $10
Interest cost $4
Expected return on the plan assets(6)
Amortization of prior service cost 2
Amortization of net loss (gain) 0
Pension expense$ 10
Therefore the total pension cost for the year is $10,000,000
Amortization of prior service cost $20 ÷10 years = $2