Outstanding Exposure - Debt Service Outstanding (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Service
Gross	$ 370,172	$ 367,770
Net	369,951	367,360
Par Outstanding
Gross	233,438	236,765
Net	233,258	236,392
Public finance
Debt Service
Gross	359,899	357,694
Net	359,703	357,314
Par Outstanding
Gross	224,254	227,507
Net	224,099	227,164
Structured finance
Debt Service
Gross	10,273	10,076
Net	10,248	10,046
Par Outstanding
Gross	9,184	9,258
Net	$ 9,159	$ 9,228