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Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Pension and PBOP – net loss: |  |  |  |
Other | $ 0 | $ 0 | $ 2 | $ 0
Accumulated Other Comprehensive Loss |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (49) | (54) | (53) | (56)
Pension and PBOP – net loss: |  |  |  |
Ending Balance | (48) | (53) | (48) | (53)
Accumulated Other Comprehensive Loss | Southern California Edison |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (18) | (21) | (20) | (22)
Pension and PBOP – net loss: |  |  |  |
Ending Balance | (18) | (20) | (18) | (20)
Accumulated Defined Benefit Plans Adjustment |  |  |  |
Pension and PBOP – net loss: |  |  |  |
Reclassified from accumulated other comprehensive loss | 1 | 1 | 3 | 3
Other | 0 | 0 | 2 | 0
Change | 1 | 1 | 5 | 3
Accumulated Defined Benefit Plans Adjustment | Southern California Edison |  |  |  |
Pension and PBOP – net loss: |  |  |  |
Reclassified from accumulated other comprehensive loss | 1 | 1 | 2 | 2
Other | (1) | 0 | 0 | 0
Change | $ 0 | $ 1 | $ 2 | $ 2

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- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569643-111683 + Details
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