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v3.22.2

Contingencies and Commitments (Details) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2022 USD ($) agreement | Dec. 31, 2021 USD ($)
Schedule Of Contingent Contractual Obligations [Line Items] |  |
The range of expiration dates of guarantees made by the Parent Company | less than one year to no more than 17 years |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 2,435 |
Number of Agreements | agreement | 139 |
Obligations Number Of Agreements | agreement | 139 |
Accrual for Environmental Loss Contingencies | $ 4 | $ 4
Guarantee Obligations [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 2,252 |
Number of Agreements | 81 |
Obligations Number Of Agreements | 81 |
Financial Standby Letter of Credit [Member] | Unsecured Debt [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 155 |
Number of Agreements | 44 |
Obligations Number Of Agreements | 44 |
Financial Standby Letter of Credit [Member] | Secured Debt [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 26 |
Number of Agreements | 12 |
Obligations Number Of Agreements | 12 |
Surety Bond |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 2 |
Number of Agreements | 2 |
Obligations Number Of Agreements | 2 |
Minimum [Member] | Guarantee Obligations [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | $ 0 |
Minimum [Member] | Financial Standby Letter of Credit [Member] | Unsecured Debt [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | 0 |
Minimum [Member] | Financial Standby Letter of Credit [Member] | Secured Debt [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | $ 0 |
Minimum [Member] | Standby Letters of Credit [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 1.00% |
Letter of credit fee percentage paid | 1.00% |
Maximum [Member] | Guarantee Obligations [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | $ 400 |
Maximum [Member] | Financial Standby Letter of Credit [Member] | Unsecured Debt [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | 36 |
Maximum [Member] | Financial Standby Letter of Credit [Member] | Secured Debt [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | 15 |
Maximum [Member] | Surety Bond |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | $ 1 |
Maximum [Member] | Standby Letters of Credit [Member] |  |
Schedule Of Contingent Contractual Obligations [Line Items] |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 3.00% |
Letter of credit fee percentage paid | 3.00% |

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