Debt Securities Held-to-maturity - Aggregate Amortized Cost and Fair Value of HTMS by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Held-to-maturity Securities, Classified [Abstract]
Amortized cost - Within 1 year	$ 503,564
Amortized cost - After 1 to 5 year	6,166,692
Amortized cost - After 5 to 10 years	2,639,263
Amortized cost - After 10 years	47,220
Amortized cost	9,356,739	$ 79,461
Book Value - within 1 year	503,564
Book Value - Within 1 to 5 years	5,659,891
Book Balue - After 5 to 10 years	2,314,691
Book Value - After 10 years	47,220
Book Value	8,525,366	79,461
Fair Value - within 1 year	497,358
Fair Value - After 1 to 5 years	5,599,919
Fair Value - After 5 to 10 years	2,299,834
Fair Value - After 10 years	43,085
Fair value	$ 8,440,196	$ 83,368

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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