Duval Corp reported the following items in the 2010 pension footnote (in millions).

Service cost	$405
Benefits paid to retirees	110
Interest cost	390
Actual returns on pension plan assets	570
Expected returns on pension plan assets	600
Actuarial gain	31

How much is the increase in the company's pension obligation during the year?

5 options:

	$654
	$716
	$226
	$ 54
	$624