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? RR A MacBook Air BO 3 DOD F4 F5 F6 F7 FB