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Contingencies and Commitments (Details) $ in Millions | Jun. 30, 2026 USD ($) agreement
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Schedule Of Contingent Contractual Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 4,710
Number of Agreements | agreement | 56
Obligations Number Of Agreements | agreement | 56
Accrual for Environmental Loss Contingencies | $ 1
Obligations Number of Agreements, Subsidiaries | agreement | 527
Subsidiary Guarantee, Maximum Undiscounted Exposure | $ 5,398
Guarantee Obligations [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 4,368
Number of Agreements | agreement | 24
Obligations Number Of Agreements | agreement | 24
Obligations Number of Agreements, Subsidiaries | agreement | 43
Subsidiary Guarantee, Maximum Undiscounted Exposure | $ 3,265
Financial Standby Letter of Credit [Member] | Unsecured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 174
Number of Agreements | agreement | 9
Obligations Number Of Agreements | agreement | 9
Financial Standby Letter of Credit [Member] | Secured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 9
Number of Agreements | agreement | 15
Obligations Number Of Agreements | agreement | 15
Obligations Number of Agreements, Subsidiaries | agreement | 383
Surety Bond | Secured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Obligations Number of Agreements, Subsidiaries | agreement | 101
Subsidiary Guarantee, Maximum Undiscounted Exposure | $ 73
Standby Letters of Credit [Member] | Secured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 159
Number of Agreements | agreement | 8
Obligations Number Of Agreements | agreement | 8
Subsidiary Guarantee, Maximum Undiscounted Exposure | $ 2,060
Minimum [Member] | Guarantee Obligations [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Loss Contingency, Estimate of Possible Loss | 1
Subsidiary Guarantee, Maximum Undiscounted Exposure | 1
Minimum [Member] | Financial Standby Letter of Credit [Member] | Unsecured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Loss Contingency, Estimate of Possible Loss | 1
Minimum [Member] | Financial Standby Letter of Credit [Member] | Secured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Loss Contingency, Estimate of Possible Loss | 1
Subsidiary Guarantee, Maximum Undiscounted Exposure | 1
Minimum [Member] | Surety Bond | Secured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Subsidiary Guarantee, Maximum Undiscounted Exposure | 1
Maximum [Member] | Guarantee Obligations [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Loss Contingency, Estimate of Possible Loss | 894
Subsidiary Guarantee, Maximum Undiscounted Exposure | 512
Maximum [Member] | Financial Standby Letter of Credit [Member] | Unsecured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Loss Contingency, Estimate of Possible Loss | 60
Maximum [Member] | Financial Standby Letter of Credit [Member] | Secured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Loss Contingency, Estimate of Possible Loss | 4
Subsidiary Guarantee, Maximum Undiscounted Exposure | 85
Maximum [Member] | Surety Bond | Secured Debt [Member] |
Schedule Of Contingent Contractual Obligations [Line Items] |
Subsidiary Guarantee, Maximum Undiscounted Exposure | $ 10

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