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Debt and Credit Agreements (Tables) | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Long-term Debt | The following table summarizes long-term debt (rates and terms are as of December 31, 2017) of Edison International and SCE:
| December 31,
(in millions) | 2017 |  | 2016
Edison International Parent and Other: |  |  |
Debentures and notes: |  |  |
2020 – 2023 (2.125% to 2.95%) | $ | 1,200 |  |  | $ | 800 |
Other long-term debt | 29 |  |  | 32 |
Current portion of long-term debt | (2 | ) |  | (402 | )
Unamortized debt discount and issuance costs, net | (13 | ) |  | (9 | )
Total Edison International Parent and Other | 1,214 |  |  | 421 |
SCE: |  |  |
First and refunding mortgage bonds: |  |  |
2018 – 2047 (1.845% to 6.05%) | 9,779 |  |  | 9,357 |
Pollution-control bonds: |  |  |
2028 – 2035 (1.375% to 5.0%)1 | 909 |  |  | 774 |
Debentures and notes: |  |  |
2029 – 2053 (5.06% to 6.65%) | 307 |  |  | 307 |
Current portion of long-term debt | (479 | ) |  | (579 | )
Unamortized debt discount and issuance costs, net | (88 | ) |  | (105 | )
Total SCE | 10,428 |  |  | 9,754 |
Total Edison International | $ | 11,642 |  |  | $ | 10,175 |
1 | Excludes outstanding bonds that have not been retired and may be remarketed to investors in the future. These bonds have variable rates and are due in 2031 at December 31, 2017 and 2031 and 2033 at December 31, 2016.
Long-term Debt Maturities | Edison International and SCE long-term debt maturities over the next five years are the following:
(in millions) | Edison International |  | SCE
2018 | $ | 481 |  |  | $ | 479 |
2019 | 81 |  |  | 79 |
2020 | 481 |  |  | 79 |
2021 | 580 |  |  | 579 |
2022 | 777 |  |  | 364 |
Summary for Status of Credit Facilities | The following table summarizes the status of the credit facilities at December 31, 2017:
(in millions) | Edison International Parent |  | SCE
Commitment | $ | 1,250 |  |  | $ | 2,750 |
Outstanding borrowings | (1,139 | ) |  | (1,238 | )
Outstanding letters of credit | — |  |  | (99 | )
Amount available | $ | 111 |  |  | $ | 1,413 |

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21538-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644 + Details
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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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