Answer:
$677,000,000
Explanation:
The computation of pension expenses is shown below:-
Pension expenses = Service cost + Interest on PBO - Return on plan assets + Amortization of prior service cost - Amortization of net loss
= $366,000,000 + $737,000,000 - $593,000,000 + $13,000,000 - $154,000,000
= $677,000,000
Therefore for computing the pension expenses we simply applied the above formula so that the correct amount could come