Marathon Petroleum Corp | 2013 | FY | 3

The following summarizes the projected benefit obligations and funded status for our defined benefit pension and other postretirement plans:
 
Pension Benefits
 
Other Benefits
(In millions)
2013
 
2012
 
2013
 
2012
Change in benefit obligations:
 
 
 
 
 
 
 
Benefit obligations at January 1
$
2,192

 
$
2,685

 
$
591

 
$
551

Service cost
93

 
66

 
25

 
20

Interest cost
73

 
94

 
26

 
24

Actuarial (gain) loss
(183
)
 
117

 
17

 
53

Benefits paid
(248
)
 
(233
)
 
(20
)
 
(17
)
Liability gain due to curtailment
—

 
(17
)
 
—

 
—

Other(a)
—

 
(520
)
 
48

 
(40
)
Benefit obligations at December 31
1,927

 
2,192

 
687

 
591

Change in plan assets:
 
 
 
 
 
 
 
Fair value of plan assets at January 1
1,478

 
1,423

 
—

 
—

Actual return on plan assets
241

 
157

 
—

 
—

Employer contributions
329

 
131

 
—

 
—

Benefits paid from plan assets
(248
)
 
(233
)
 
—

 
—

Fair value of plan assets at December 31
1,800

 
1,478

 
—

 
—

Funded status of plans at December 31
$
(127
)
 
$
(714
)
 
$
(687
)
 
$
(591
)
Amounts recognized in the consolidated balance sheets:
 
 
 
 
 
 
 
Current liabilities
$
(18
)
 
$
(18
)
 
$
(25
)
 
$
(21
)
Noncurrent liabilities
(109
)
 
(696
)
 
(662
)
 
(570
)
Accrued benefit cost
$
(127
)
 
$
(714
)
 
$
(687
)
 
$
(591
)
Pretax amounts recognized in accumulated other comprehensive loss:(b)
 
 
 
 
 
 
 
Net loss
$
668

 
$
1,147

 
$
107

 
$
93

Prior service credit
(415
)
 
(460
)
 
(30
)
 
(38
)
(a) 
Includes adjustments related to plan amendments in 2013 and 2012. Also, includes adjustments related to the Galveston Bay Refinery and Related Assets acquisition in 2013.
(b) 
Amounts exclude those related to LOOP, an equity method investee with defined benefit pension and postretirement plans for which net losses of $16 million and $2 million were recorded in accumulated other comprehensive loss in 2013, reflecting our 51 percent share.

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