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Comprehensive Income
12 Months Ended
Dec. 31, 2024
Comprehensive Income [Abstract]  
Comprehensive Income


(16) Comprehensive Income:

Comprehensive income consists of net income and other gains and losses affecting shareholders’ equity and pension/postretirement benefit (OPEB) liabilities that, under GAAP, are excluded from net income (loss).

The components of accumulated other comprehensive income, net of tax, are as follows:

($ in millions)

OPEB Costs

Balance at December 31, 2021 (1)

$

60 

Other comprehensive income

before reclassifications

30 

Amounts reclassified from accumulated other

comprehensive income to net income

(11)

Net current-period other comprehensive

income

19 

Balance at December 31, 2022 (1)

$

79 

Other comprehensive income

before reclassifications

34 

Amounts reclassified from accumulated other

comprehensive income to net income

(17)

Net current-period other comprehensive

income

17 

Balance at December 31, 2023 (1)

$

96 

Other comprehensive income

before reclassifications

Amounts reclassified from accumulated other

comprehensive income to net income

(19)

Net current-period other comprehensive

income

(19)

Balance at December 31, 2024 (1)

$

77 

(1)OPEB amounts are net of deferred tax balances of $23 million, $29 million, $23 million, and $15 million, as of December 31, 2024, 2023, 2022, and 2021, respectively.

The significant items reclassified from each component of accumulated other comprehensive loss are as follows:

Amount Reclassified from Accumulated Other Comprehensive Loss (1)

Details about Accumulated Other

For the year ended

For the year ended

For the year ended

Affected line item in the

Comprehensive Loss Components

December 31,

December 31,

December 31,

statement where net

($ in millions)

2024

2023

2022

income (loss) is presented

Amortization of OPEB Cost Items(2)

Prior-service credits (costs)

$

25

$

22

$

13

Actuarial gains (losses)

-

-

-

Reclassifications, pretax

25

22

13

Income before income taxes

Tax impact

(6)

(5)

(2)

Income tax expense

Reclassifications, net of tax

$

19

$

17

$

11

Net gain

(1)Amounts in parentheses indicate losses.

(2)These accumulated other comprehensive loss components are included in the computation of net periodic pension and OPEB costs (see Note 18 - Retirement Plans for additional details).