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v3.23.1

Outstanding Exposure - Financial Guaranty Portfolio by Internal Rating (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 236,383 | $ 233,258
% of total net par outstanding | 100.00% | 100.00%
AAA |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 3,600 | $ 3,584
% of total net par outstanding | 1.50% | 1.50%
AA |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 24,391 | $ 24,383
% of total net par outstanding | 10.30% | 10.50%
A |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 110,321 | $ 107,493
% of total net par outstanding | 46.70% | 46.10%
BBB |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 92,189 | $ 91,906
% of total net par outstanding | 39.00% | 39.40%
BIG |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 5,882 | $ 5,892
% of total net par outstanding | 2.50% | 2.50%
Public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 226,746 | $ 224,099
Public finance | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 180,837 | $ 179,636
% of total net par outstanding | 100.00% | 100.00%
Public finance | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 45,909 | $ 44,463
% of total net par outstanding | 100.00% | 100.00%
Public finance | AAA | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 220 | $ 222
% of total net par outstanding | 0.10% | 0.10%
Public finance | AAA | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 2,000 | $ 1,967
% of total net par outstanding | 4.40% | 4.40%
Public finance | AA | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 16,239 | $ 16,241
% of total net par outstanding | 9.00% | 9.10%
Public finance | AA | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 3,535 | $ 3,497
% of total net par outstanding | 7.60% | 7.90%
Public finance | A | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 97,909 | $ 96,807
% of total net par outstanding | 54.10% | 53.90%
Public finance | A | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 10,460 | $ 9,271
% of total net par outstanding | 22.80% | 20.90%
Public finance | BBB | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 62,665 | $ 62,570
% of total net par outstanding | 34.70% | 34.80%
Public finance | BBB | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 28,924 | $ 28,747
% of total net par outstanding | 63.00% | 64.60%
Public finance | BIG |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 4,794 | $ 4,777
Public finance | BIG | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 3,804 | $ 3,796
% of total net par outstanding | 2.10% | 2.10%
Public finance | BIG | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 990 | $ 981
% of total net par outstanding | 2.20% | 2.20%
Structured finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 9,637 | $ 9,159
Structured finance | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 8,660 | $ 8,228
% of total net par outstanding | 100.00% | 100.00%
Structured finance | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 977 | $ 931
% of total net par outstanding | 100.00% | 100.00%
Structured finance | AAA | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 908 | $ 926
% of total net par outstanding | 10.50% | 11.20%
Structured finance | AAA | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 472 | $ 469
% of total net par outstanding | 48.30% | 50.40%
Structured finance | AA | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 4,605 | $ 4,633
% of total net par outstanding | 53.10% | 56.30%
Structured finance | AA | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 12 | $ 12
% of total net par outstanding | 1.20% | 1.30%
Structured finance | A | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 1,567 | $ 1,075
% of total net par outstanding | 18.10% | 13.10%
Structured finance | A | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 385 | $ 340
% of total net par outstanding | 39.40% | 36.50%
Structured finance | BBB | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 492 | $ 479
% of total net par outstanding | 5.70% | 5.80%
Structured finance | BBB | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 108 | $ 110
% of total net par outstanding | 11.10% | 11.80%
Structured finance | BIG |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 1,088 | $ 1,115
Structured finance | BIG | United States |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 1,088 | $ 1,115
% of total net par outstanding | 12.60% | 13.60%
Structured finance | BIG | Non-U.S. public finance |  |
Schedule of Insured Financial Obligations [Line Items] |  |
Net | $ 0 | $ 0
% of total net par outstanding | 0.00% | 0.00%

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