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Accumulated Other Comprehensive Income
3 Months Ended
Mar. 31, 2023
Equity [Abstract]  
Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income
    The following table sets forth the components in accumulated other comprehensive income:

(in millions)Three Months Ended March 31, 2023
Details about Accumulated Other Comprehensive Loss
Amount Reclassified out of Accumulated Other Comprehensive Loss (1)
Affected Line Item in the Consolidated Statements of Income and Comprehensive Income
Unrealized gains on available-for-sale securities:$— Net gain on securities
Income tax expense
$— Net gain on securities, net of tax
Unrealized gains on cash flow hedges:$Interest expense
(2)Income tax benefit
$Net gain on cash flow hedges, net of tax
Amortization of defined benefit pension plan items:
Past service liability$— 
Included in the computation of net periodic credit (2)
Actuarial losses(2)
Included in the computation of net periodic cost (2)
(2)Total before tax
Income tax benefit
$(1)Amortization of defined benefit pension plan items, net of tax
Total reclassifications for the period$
(1)Amounts in parentheses indicate expense items.
(2)See Note 12 - Pension and Other Post-Retirement Benefits ,” for additional information.