Answer:
-$80 million
Step-by-step explanation:
Since the $100 million collected from the life insurance policies are not taxable income (they are a permanent difference), the net income = $20 million - $100 million = -$80 million.
Permanent differences occur because companies are allowed by US GAAP to record some expenses or gains for reporting purposes only, but the IRS does not allow them for taxable purposes. Neither life insurance premiums for key employees nor life insurance proceeds upon death of key employees are allowed for taxable purposes. US GAAP allows a company to expense the premiums, but the IRS doesn't. The same happens to gains resulting from life insurance proceeds.