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Accumulated Other Comprehensive Income
 12 Months Ended
Dec. 31, 2023
Equity [Abstract]  
Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income
AOCI represents cumulative gains and losses that are not reflected in earnings. AOCI balances and the components of other comprehensive income (loss) are as follows:
Total AOCI
Balance at December 31, 2020$5,394 
Available for sale securities:
Net unrealized gain (loss), net of tax expense (benefit) of $(2,029)
(6,492)
Other reclassifications included in other revenue, net of tax expense (benefit) of $(1)
(3)
Other, net of tax expense (benefit) of $(3)
(8)
Balance at December 31, 2021$(1,109)
Available for sale securities:
Net unrealized gain (loss), excluding transfers to held to maturity, net of tax expense (benefit) of $(6,994)
(22,106)
Net unrealized loss on securities transferred to held to maturity, net of tax benefit of $4,377
13,851 
Other reclassifications included in other revenue, net of tax expense (benefit) of $2
7 
Held to maturity securities:
Net unrealized loss on securities transferred from available for sale, net of tax benefit of $4,377
(13,851)
Amortization of amounts previously recorded upon transfer from available for sale, net of tax expense (benefit) of $165
542 
Other, net of tax expense (benefit) of $15
45 
Balance at December 31, 2022$(22,621)
Available for sale securities:
Net unrealized gain (loss), net of tax expense (benefit) of $886
2,653 
Other reclassifications included in other revenue, net of tax expense (benefit) of $15
46 
Held to maturity securities:
Amortization of amounts previously recorded upon transfer from available for sale, net of tax expense (benefit) of $657
1,817 
Other, net of tax expense (benefit) of $(9)
(26)
Balance at December 31, 2023$(18,131)

In 2022, the Company transferred a portion of its AFS securities to the HTM category. As of December 31, 2023, the total remaining unamortized loss on these securities transferred to HTM included in AOCI was $11.5 billion net of tax effect ($15.0 billion pre-tax). See Note 5 for additional discussion on the 2022 transfers of AFS securities to HTM.