XML 42 R19.htm IDEA: XBRL DOCUMENT v3.19.1
Benefit Plans
 3 Months Ended
Mar. 31, 2019
Retirement Benefits [Abstract]  
Benefit Plans
Note 12
Benefit Plans
Change in accounting principle
As discussed in Note 1, the Company changed its accounting principle for recognizing actuarial gains and losses and expected return on plan assets for its pension and other postretirement plans to a more preferable policy under U.S. GAAP. Under the new principle, remeasurement of projected benefit obligation and plan assets are immediately recognized through earnings and are referred to as pension and
other postretirement remeasurement gains and losses on the Condensed Consolidated Statements of Operations. This change has been applied on a retrospective basis. See Note 1 for further information regarding the impact of the change in accounting principle on the condensed consolidated financial statements.
Components of net cost (benefit) for pension and other postretirement plans
 
 
Three months ended March 31,
($ in millions)

 
2019
 
2018
Pension benefits
 
 
 
 
Service cost
 
$
28

 
$
28

Interest cost
 
65

 
61

Expected return on plan assets
 
(93
)
 
(113
)
Amortization of prior service credit
 
(14
)
 
(14
)
Costs and expenses
 
(14
)
 
(38
)
Remeasurement of projected benefit obligation
 
387

 
(190
)
Remeasurement of plan assets
 
(391
)
 
212

Remeasurement gains and losses
 
(4
)
 
22

Total net benefit
 
$
(18
)
 
$
(16
)
 
 
 
 
 
Postretirement benefits
 
 
 
 
Service cost
 
$
2

 
$
2

Interest cost
 
4

 
4

Amortization of prior service credit
 
(1
)
 
(5
)
Costs and expenses
 
5

 
1

Remeasurement of projected benefit obligation
 
19

 
(8
)
Remeasurement of plan assets
 
—

 
—

Remeasurement gains and losses
 
19

 
(8
)
Total net cost (benefit)
 
$
24

 
$
(7
)