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Commitments and Guarantees Unrecorded Unconditional Purchase Obligations (Details) $ in Millions | Dec. 31, 2023 USD ($)
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Capital Addition Purchase Commitments [Member] |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligation | $ 1,027
Unrecorded Unconditional Purchase Obligation, Due within One Year | 694
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 272
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 13
Unrecorded Unconditional Purchase Obligation, Due within Four Years | 5
Unrecorded Unconditional Purchase Obligation, Due within Five Years | 2
Unrecorded Unconditional Purchase Obligation, Due after Five Years | 41
Long-term Contract for Purchase of Electric Power [Domain] |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligation | 5,098
Unrecorded Unconditional Purchase Obligation, Due within One Year | 727
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 692
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 333
Unrecorded Unconditional Purchase Obligation, Due within Four Years | 294
Unrecorded Unconditional Purchase Obligation, Due within Five Years | 286
Unrecorded Unconditional Purchase Obligation, Due after Five Years | 2,766
Electric Transmission [Member] |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligation | 411
Unrecorded Unconditional Purchase Obligation, Due within One Year | 119
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 122
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 96
Unrecorded Unconditional Purchase Obligation, Due within Four Years | 5
Unrecorded Unconditional Purchase Obligation, Due within Five Years | 5
Unrecorded Unconditional Purchase Obligation, Due after Five Years | 64
Public Utility Districts [Member] |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligation | 65
Unrecorded Unconditional Purchase Obligation, Due within One Year | 12
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 11
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 10
Unrecorded Unconditional Purchase Obligation, Due within Four Years | 9
Unrecorded Unconditional Purchase Obligation, Due within Five Years | 7
Unrecorded Unconditional Purchase Obligation, Due after Five Years | 16
Natural gas [Member] |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligation | 471
Unrecorded Unconditional Purchase Obligation, Due within One Year | 104
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 69
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 37
Unrecorded Unconditional Purchase Obligation, Due within Four Years | 37
Unrecorded Unconditional Purchase Obligation, Due within Five Years | 37
Unrecorded Unconditional Purchase Obligation, Due after Five Years | 187
Coal and transportationSupply Agreements [Member] |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligation | 54
Unrecorded Unconditional Purchase Obligation, Due within One Year | 27
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 27
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 0
Unrecorded Unconditional Purchase Obligation, Due within Four Years | 0
Unrecorded Unconditional Purchase Obligation, Due within Five Years | 0
Unrecorded Unconditional Purchase Obligation, Due after Five Years | 0
Commitments [Member] |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligation | 7,126
Unrecorded Unconditional Purchase Obligation, Due within One Year | 1,683
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 1,193
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 489
Unrecorded Unconditional Purchase Obligation, Due within Four Years | 350
Unrecorded Unconditional Purchase Obligation, Due within Five Years | 337
Unrecorded Unconditional Purchase Obligation, Due after Five Years | $ 3,074

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- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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X
- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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- Definition Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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