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Contingencies and Commitments (Tables) | 9 Months Ended
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Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract] |
Schedule Of Contingent Contractual Obligations [Table Text Block] | The following table summarizes the Parent Company’s contingent contractual obligations as of September 30, 2022. Amounts presented in the following table represent the Parent Company’s current undiscounted exposure to guarantees and the range of maximum undiscounted potential exposure. The maximum exposure is not reduced by the amounts, if any, that could be recovered under the recourse or collateralization provisions in the guarantees.
Contingent Contractual Obligations |  | Amount (in millions) |  | Number of Agreements |  | Maximum Exposure Range for Each Agreement (in millions)
Guarantees and commitments |  | $ | 2,282 |  |  | 81 |  |  | $0 — 400
Letters of credit under the unsecured credit facilities |  | 156 |  |  | 44 |  |  | $0 — 36
Letters of credit under the revolving credit facility |  | 26 |  |  | 12 |  |  | $0 — 15
Surety bonds |  | 2 |  |  | 2 |  |  | $1
Total |  | $ | 2,466 |  |  | 139 |  |  |

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- Definition Provides pertinent information about guarantee obligations and letters of credit issued, or each group of similar obligations, including the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee. + References No definition available. + Details
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