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Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss)
12 Months Ended
Dec. 31, 2023
Equity [Abstract]  
Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss)
Comprehensive income (loss) represents the change in shareholders' equity during a reporting period from transactions and other events and circumstances from non-shareholder sources. For the Company, comprehensive income (loss) is equal to net income plus or minus the after tax change in net unrealized investment gains (losses) on fixed maturity securities, the after tax change in net reserve remeasurements attributable to discount rates, and the after tax change in net funded status of benefit plans for the periods as shown in the Consolidated Statements of Changes in Shareholders' Equity. AOCI represents the accumulated change in shareholders' equity from these transactions and other events and circumstances from non-shareholder sources as shown in the Consolidated Balance Sheets.
In the Consolidated Balance Sheets, the Company recognizes the net funded status of benefit plans as a component of AOCI, net of tax.
Comprehensive Income (Loss)
The components of comprehensive income (loss) were as follows (in millions, 2022 and 2021 recast for the adoption of LDTI):
($ in millions)Year Ended December 31,
202320222021
Net income
$45.0 $19.8 $170.4 
Other comprehensive income (loss):
Effect of adopting ASU 2018-12
— — (426.6)
Change in net unrealized investment gains (losses) on fixed maturity
securities:
Net unrealized investment gains (losses) on securities arising
during the period
133.9 (1,042.6)(122.8)
Less: reclassification adjustment for net investment gains (losses)
included in income before income tax
(20.3)(29.1)(7.7)
Total, before tax
154.2 (1,013.5)(115.1)
Income tax expense (benefit)
32.9 (216.8)(24.8)
Total, net of tax
121.3 (796.7)(90.3)
  Change in net reserve remeasurements attributable to discount rates:
Total, before tax
(47.2)567.6141.0 
Income tax expense (benefit)
(10.1)121.7 30.2 
Total, net of tax
(37.1)445.9 110.8 
Change in net funded status of benefit plans:
Total, before tax
1.5 1.8 1.2 
Income tax expense (benefit)0.3 0.4 0.2 
Total, net of tax
1.2 1.4 1.0 
Total comprehensive income (loss)
$130.4 $(329.6)$(234.7)
Accumulated Other Comprehensive Income (Loss)
The following table reconciles the components of AOCI for the periods indicated (2022 and 2021 recast for the adoption of LDTI)
($ in millions)
Net Unrealized
Investment Gains (Losses) on
Securities(1)(2)
Net Reserve Remeasurements Attributable to Discount Rates(1)
Net Funded
Status of
Benefit Plans(1)
Total(1)
Beginning balance, January 1, 2023$(449.6)$59.0 $(8.8)$(399.4)
Other comprehensive income (loss) before reclassifications105.3 (37.1)1.2 69.4 
Amounts reclassified from AOCI
16.0 — — 16.0 
Net current period other comprehensive income (loss)121.3 (37.1)1.2 85.4 
Ending balance, December 31, 2023$(328.3)$21.9 $(7.6)$(314.0)
Beginning balance, January 1, 2022$347.1 $(386.9)$(10.2)$(50.0)
Other comprehensive income (loss) before reclassifications(819.7)445.91.4 (372.4)
Amounts reclassified from AOCI
23.0 — — 23.0 
Net current period other comprehensive income (loss)(796.7)445.9 1.4 (349.4)
Ending balance, December 31, 2022$(449.6)$59.0 $(8.8)$(399.4)
Beginning balance, January 1, 2021$366.3 $— $(11.2)$355.1 
Effect of adopting ASU 2018-12
71.1 (497.7)— (426.6)
Other comprehensive income (loss) before reclassifications(96.4)110.8 1.0 15.4 
Amounts reclassified from AOCI
6.1 — — 6.1 
Net current period other comprehensive income (loss)(90.3)110.8 1.0 21.5 
Ending balance, December 31, 2021$347.1 $(386.9)$(10.2)$(50.0)
(1)    All amounts are net of tax.
(2)    The pretax amounts reclassified from AOCI, $(20.3) million, $(29.1) million and $(7.7) million, are included in net investment gains (losses) and the related income tax expense (benefit), $(4.3) million, $(6.1) million and $(1.6) million, are included in income tax expense (benefit) in the Consolidated Statements of Operations and Comprehensive Income (Loss) for the years ended December 31, 2023, 2022 and 2021, respectively.

Comparative information for elements that are not required to be reclassified in their entirety to net income in the same reporting period is located in Note 3.