XML 183 R149.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Guarantees Of Debt (Schedule Of Financial Statements Of Guarantors) (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues | $ 2,278 | $ 2,688 | $ 2,314 | $ 3,135 | $ 2,773 | $ 2,641 | $ 2,249 | $ 3,223 | $ 10,415 | $ 10,886 | $ 9,968 |
Operating Expenses |  |  |  |  |  |  |  |  | 7,453 | 8,263 | 7,669 |
Operating Income (Loss) | 532 | 814 | 568 | 1,048 | 807 | 746 | 365 | 705 | 2,962 | 2,623 | 2,299 |
Equity Earnings (Losses) of Subsidiaries |  |  |  |  |  |  |  |  | 12 | 13 | 11 |
Other Income |  |  |  |  |  |  |  |  | 254 | 290 | 213 |
Other Deductions |  |  |  |  |  |  |  |  | (102) | (61) | (54) |
Other-than-Temporary-Impairments |  |  |  |  |  |  |  |  | (53) | (20) | (12) |
Interest Expense |  |  |  |  |  |  |  |  | (393) | (389) | (402) |
Income Tax Benefit (Expense) |  |  |  |  |  |  |  |  | (1,001) | (938) | (812) |
Net Income |  |  |  |  |  |  |  |  | 1,679 | 1,518 | 1,243 |
Net Cash Provided By (Used In) Operating Activities |  |  |  |  |  |  |  |  | 3,919 | 3,160 | 3,158 |
Net Cash Provided By (Used In) Investing Activities |  |  |  |  |  |  |  |  | (3,942) | (2,892) | (2,801) |
Net Cash Provided By (Used In) Financing Activities |  |  |  |  |  |  |  |  | 15 | (359) | (243) |
Current Assets | 3,494 |  |  |  | 4,119 |  |  |  | 3,494 | 4,119 |  |
Property, Plant and Equipment, net | 26,539 |  |  |  | 23,589 |  |  |  | 26,539 | 23,589 |  |
Noncurrent Assets | 7,502 |  |  |  | 7,579 |  |  |  | 7,502 | 7,579 |  |
Total Assets | 37,535 |  |  |  | 35,287 |  |  |  | 37,535 | 35,287 | 32,480 |
Current Liabilities | 3,575 |  |  |  | 3,478 |  |  |  | 3,575 | 3,478 |  |
Noncurrent Liabilities | 12,059 |  |  |  | 11,408 |  |  |  | 12,059 | 11,408 |  |
Member's Equity | 13,067 |  |  |  | 12,186 |  |  |  | 13,067 | 12,186 | 11,609 | $ 10,781
TOTAL LIABILITIES AND CAPITALIZATION | 37,535 |  |  |  | 35,287 |  |  |  | 37,535 | 35,287 |  |
Power [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues | 1,082 | 1,096 | 1,025 | 1,725 | 1,610 | 1,138 | 986 | 1,700 | 4,928 | 5,434 | 5,063 |
Operating Expenses |  |  |  |  |  |  |  |  | 3,498 | 4,225 | 3,993 |
Operating Income (Loss) | 227 | $ 391 | $ 228 | $ 584 | 507 | $ 353 | $ 67 | $ 282 | 1,430 | 1,209 | 1,070 |
Equity Earnings (Losses) of Subsidiaries |  |  |  |  |  |  |  |  | 14 | 14 | 16 |
Other Income |  |  |  |  |  |  |  |  | 169 | 222 | 154 |
Other Deductions |  |  |  |  |  |  |  |  | (72) | (52) | (49) |
Other-than-Temporary-Impairments |  |  |  |  |  |  |  |  | (53) | (20) | (12) |
Interest Expense |  |  |  |  |  |  |  |  | (121) | (122) | (116) |
Income Tax Benefit (Expense) |  |  |  |  |  |  |  |  | (511) | (491) | (419) |
Net Income |  |  |  |  |  |  |  |  | 856 | 760 | 644 |
Net Cash Provided By (Used In) Operating Activities |  |  |  |  |  |  |  |  | 1,706 | 1,425 | 1,347 |
Net Cash Provided By (Used In) Investing Activities |  |  |  |  |  |  |  |  | (1,001) | (524) | (861) |
Net Cash Provided By (Used In) Financing Activities |  |  |  |  |  |  |  |  | (702) | (898) | (487) |
Current Assets | 1,949 |  |  |  | 2,359 |  |  |  | 1,949 | 2,359 |  |
Property, Plant and Equipment, net | 8,127 |  |  |  | 7,515 |  |  |  | 8,127 | 7,515 |  |
Noncurrent Assets | 2,174 |  |  |  | 2,163 |  |  |  | 2,174 | 2,163 |  |
Total Assets | 12,250 |  |  |  | 12,037 |  |  |  | 12,250 | 12,037 |  |
Current Liabilities | 1,226 |  |  |  | 1,184 |  |  |  | 1,226 | 1,184 |  |
Noncurrent Liabilities | 3,338 |  |  |  | 3,061 |  |  |  | 3,338 | 3,061 |  |
Total Long-Term Debt | 1,684 |  |  |  | 2,234 |  |  |  | 1,684 | 2,234 |  |
Member's Equity | 6,002 |  |  |  | 5,558 |  |  |  | 6,002 | 5,558 | 5,858 | $ 5,630
TOTAL LIABILITIES AND CAPITALIZATION | 12,250 |  |  |  | 12,037 |  |  |  | 12,250 | 12,037 |  |
Power Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  | 4,928 | 5,434 | 5,063 |
Operating Expenses |  |  |  |  |  |  |  |  | 3,498 | 4,225 | 3,993 |
Operating Income (Loss) |  |  |  |  |  |  |  |  | 1,430 | 1,209 | 1,070 |
Equity Earnings (Losses) of Subsidiaries |  |  |  |  |  |  |  |  | 14 | 14 | 16 |
Other Income |  |  |  |  |  |  |  |  | 169 | 222 | 154 |
Other Deductions |  |  |  |  |  |  |  |  | (72) | (52) | (49) |
Other-than-Temporary-Impairments |  |  |  |  |  |  |  |  | (53) | (20) | (12) |
Interest Expense |  |  |  |  |  |  |  |  | (121) | (122) | (116) |
Income Tax Benefit (Expense) |  |  |  |  |  |  |  |  | (511) | (491) | (419) |
Net Income |  |  |  |  |  |  |  |  | 856 | 760 | 644 |
Comprehensive Income (Loss), Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  | 844 | 595 | 909 |
Net Cash Provided By (Used In) Operating Activities |  |  |  |  |  |  |  |  | 1,706 | 1,425 | 1,347 |
Net Cash Provided By (Used In) Investing Activities |  |  |  |  |  |  |  |  | (1,001) | (524) | (861) |
Net Cash Provided By (Used In) Financing Activities |  |  |  |  |  |  |  |  | (702) | (898) | (487) |
Current Assets | 1,949 |  |  |  | 2,359 |  |  |  | 1,949 | 2,359 |  |
Property, Plant and Equipment, net | 8,127 |  |  |  | 7,515 |  |  |  | 8,127 | 7,515 |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |
Noncurrent Assets | 2,174 |  |  |  | 2,163 |  |  |  | 2,174 | 2,163 |  |
Total Assets | 12,250 |  |  |  | 12,037 |  |  |  | 12,250 | 12,037 |  |
Current Liabilities | 1,226 |  |  |  | 1,184 |  |  |  | 1,226 | 1,184 |  |
Noncurrent Liabilities | 3,338 |  |  |  | 3,061 |  |  |  | 3,338 | 3,061 |  |
Total Long-Term Debt | 1,684 |  |  |  | 2,234 |  |  |  | 1,684 | 2,234 |  |
Member's Equity | 6,002 |  |  |  | 5,558 |  |  |  | 6,002 | 5,558 |  |
TOTAL LIABILITIES AND CAPITALIZATION | 12,250 |  |  |  | 12,037 |  |  |  | 12,250 | 12,037 |  |
Power Senior Notes [Member] | Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  | 4,883 | 5,390 | 5,022 |
Operating Expenses |  |  |  |  |  |  |  |  | 3,451 | 4,175 | 3,945 |
Operating Income (Loss) |  |  |  |  |  |  |  |  | 1,432 | 1,215 | 1,077 |
Equity Earnings (Losses) of Subsidiaries |  |  |  |  |  |  |  |  | (4) | (5) | (5) |
Other Income |  |  |  |  |  |  |  |  | 174 | 222 | 157 |
Other Deductions |  |  |  |  |  |  |  |  | (45) | (32) | (35) |
Other-than-Temporary-Impairments |  |  |  |  |  |  |  |  | (53) | (20) | (12) |
Interest Expense |  |  |  |  |  |  |  |  | (39) | (35) | (42) |
Income Tax Benefit (Expense) |  |  |  |  |  |  |  |  | (574) | (558) | (474) |
Net Income |  |  |  |  |  |  |  |  | 891 | 787 | 666 |
Comprehensive Income (Loss), Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  | 855 | 768 | 713 |
Net Cash Provided By (Used In) Operating Activities |  |  |  |  |  |  |  |  | 2,089 | 1,674 | 1,503 |
Net Cash Provided By (Used In) Investing Activities |  |  |  |  |  |  |  |  | (1,519) | (856) | (1,092) |
Net Cash Provided By (Used In) Financing Activities |  |  |  |  |  |  |  |  | (571) | (818) | (412) |
Current Assets | 1,912 |  |  |  | 2,037 |  |  |  | 1,912 | 2,037 |  |
Property, Plant and Equipment, net | 6,502 |  |  |  | 6,265 |  |  |  | 6,502 | 6,265 |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 346 |  |  |  | 120 |  |  |  | 346 | 120 |  |
Noncurrent Assets | 1,959 |  |  |  | 1,952 |  |  |  | 1,959 | 1,952 |  |
Total Assets | 10,719 |  |  |  | 10,374 |  |  |  | 10,719 | 10,374 |  |
Current Liabilities | 3,866 |  |  |  | 3,606 |  |  |  | 3,866 | 3,606 |  |
Noncurrent Liabilities | 2,597 |  |  |  | 2,442 |  |  |  | 2,597 | 2,442 |  |
Total Long-Term Debt | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |
Member's Equity | 4,256 |  |  |  | 4,326 |  |  |  | 4,256 | 4,326 |  |
TOTAL LIABILITIES AND CAPITALIZATION | 10,719 |  |  |  | 10,374 |  |  |  | 10,719 | 10,374 |  |
Power Senior Notes [Member] | Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  | 179 | 153 | 190 |
Operating Expenses |  |  |  |  |  |  |  |  | 169 | 143 | 174 |
Operating Income (Loss) |  |  |  |  |  |  |  |  | 10 | 10 | 16 |
Equity Earnings (Losses) of Subsidiaries |  |  |  |  |  |  |  |  | 14 | 14 | 16 |
Other Income |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Other Deductions |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Other-than-Temporary-Impairments |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Interest Expense |  |  |  |  |  |  |  |  | (19) | (19) | (19) |
Income Tax Benefit (Expense) |  |  |  |  |  |  |  |  | 6 | 2 | 0 |
Net Income |  |  |  |  |  |  |  |  | 11 | 7 | 13 |
Comprehensive Income (Loss), Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  | 11 | 7 | 11 |
Net Cash Provided By (Used In) Operating Activities |  |  |  |  |  |  |  |  | 80 | 76 | 82 |
Net Cash Provided By (Used In) Investing Activities |  |  |  |  |  |  |  |  | (430) | (42) | (71) |
Net Cash Provided By (Used In) Financing Activities |  |  |  |  |  |  |  |  | 354 | (32) | (11) |
Current Assets | 364 |  |  |  | 150 |  |  |  | 364 | 150 |  |
Property, Plant and Equipment, net | 1,542 |  |  |  | 1,169 |  |  |  | 1,542 | 1,169 |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |
Noncurrent Assets | 136 |  |  |  | 137 |  |  |  | 136 | 137 |  |
Total Assets | 2,042 |  |  |  | 1,456 |  |  |  | 2,042 | 1,456 |  |
Current Liabilities | 1,076 |  |  |  | 786 |  |  |  | 1,076 | 786 |  |
Noncurrent Liabilities | 375 |  |  |  | 360 |  |  |  | 375 | 360 |  |
Total Long-Term Debt | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |
Member's Equity | 591 |  |  |  | 310 |  |  |  | 591 | 310 |  |
TOTAL LIABILITIES AND CAPITALIZATION | 2,042 |  |  |  | 1,456 |  |  |  | 2,042 | 1,456 |  |
Power Senior Notes [Member] | Consolidation, Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  | (134) | (109) | (149) |
Operating Expenses |  |  |  |  |  |  |  |  | (134) | (109) | (149) |
Operating Income (Loss) |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Equity Earnings (Losses) of Subsidiaries |  |  |  |  |  |  |  |  | (902) | (794) | (679) |
Other Income |  |  |  |  |  |  |  |  | (53) | (34) | (38) |
Other Deductions |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Other-than-Temporary-Impairments |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Interest Expense |  |  |  |  |  |  |  |  | 53 | 34 | 38 |
Income Tax Benefit (Expense) |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Net Income |  |  |  |  |  |  |  |  | (902) | (794) | (679) |
Comprehensive Income (Loss), Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  | (866) | (775) | (724) |
Net Cash Provided By (Used In) Operating Activities |  |  |  |  |  |  |  |  | (1,034) | (902) | (526) |
Net Cash Provided By (Used In) Investing Activities |  |  |  |  |  |  |  |  | 1,314 | 226 | 697 |
Net Cash Provided By (Used In) Financing Activities |  |  |  |  |  |  |  |  | (280) | 676 | (171) |
Current Assets | (4,828) |  |  |  | (4,091) |  |  |  | (4,828) | (4,091) |  |
Property, Plant and Equipment, net | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | (4,847) |  |  |  | (4,636) |  |  |  | (4,847) | (4,636) |  |
Noncurrent Assets | (76) |  |  |  | (195) |  |  |  | (76) | (195) |  |
Total Assets | (9,751) |  |  |  | (8,922) |  |  |  | (9,751) | (8,922) |  |
Current Liabilities | (4,828) |  |  |  | (4,091) |  |  |  | (4,828) | (4,091) |  |
Noncurrent Liabilities | (76) |  |  |  | (195) |  |  |  | (76) | (195) |  |
Total Long-Term Debt | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |
Member's Equity | (4,847) |  |  |  | (4,636) |  |  |  | (4,847) | (4,636) |  |
TOTAL LIABILITIES AND CAPITALIZATION | (9,751) |  |  |  | (8,922) |  |  |  | (9,751) | (8,922) |  |
Power Senior Notes [Member] | Power Parent [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Operating Expenses |  |  |  |  |  |  |  |  | 12 | 16 | 23 |
Operating Income (Loss) |  |  |  |  |  |  |  |  | (12) | (16) | (23) |
Equity Earnings (Losses) of Subsidiaries |  |  |  |  |  |  |  |  | 906 | 799 | 684 |
Other Income |  |  |  |  |  |  |  |  | 48 | 34 | 35 |
Other Deductions |  |  |  |  |  |  |  |  | (27) | (20) | (14) |
Other-than-Temporary-Impairments |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Interest Expense |  |  |  |  |  |  |  |  | (116) | (102) | (93) |
Income Tax Benefit (Expense) |  |  |  |  |  |  |  |  | 57 | 65 | 55 |
Net Income |  |  |  |  |  |  |  |  | 856 | 760 | 644 |
Comprehensive Income (Loss), Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  | 844 | 595 | 909 |
Net Cash Provided By (Used In) Operating Activities |  |  |  |  |  |  |  |  | 571 | 577 | 288 |
Net Cash Provided By (Used In) Investing Activities |  |  |  |  |  |  |  |  | (366) | 148 | (395) |
Net Cash Provided By (Used In) Financing Activities |  |  |  |  |  |  |  |  | (205) | (724) | $ 107 |
Current Assets | 4,501 |  |  |  | 4,263 |  |  |  | 4,501 | 4,263 |  |
Property, Plant and Equipment, net | 83 |  |  |  | 81 |  |  |  | 83 | 81 |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 4,501 |  |  |  | 4,516 |  |  |  | 4,501 | 4,516 |  |
Noncurrent Assets | 155 |  |  |  | 269 |  |  |  | 155 | 269 |  |
Total Assets | 9,240 |  |  |  | 9,129 |  |  |  | 9,240 | 9,129 |  |
Current Liabilities | 1,112 |  |  |  | 883 |  |  |  | 1,112 | 883 |  |
Noncurrent Liabilities | 442 |  |  |  | 454 |  |  |  | 442 | 454 |  |
Total Long-Term Debt | 1,684 |  |  |  | 2,234 |  |  |  | 1,684 | 2,234 |  |
Member's Equity | 6,002 |  |  |  | 5,558 |  |  |  | 6,002 | 5,558 |  |
TOTAL LIABILITIES AND CAPITALIZATION | $ 9,240 |  |  |  | $ 9,129 |  |  |  | $ 9,240 | $ 9,129 |  |

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 210.5-02.18) -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 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 210.5-02.9) -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 210 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6801-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 + Details
Name: | us-gaap_AssetsCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, 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 210.5-02.10-17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
Name: | us-gaap_AssetsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831223 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 + Details
Name: | us-gaap_ComprehensiveIncomeNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 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.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + 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 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. + 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 210.5-02.32) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 + Details
Name: | us-gaap_LiabilitiesAndStockholdersEquity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, 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 210.5-02.21) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LiabilitiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of obligation due after one year or beyond the normal operating cycle, 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 210.5-02.22-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22, 23, 24, 25, 26, 27 -Article 5 + Details
Name: | us-gaap_LiabilitiesNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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 + Details
Name: | us-gaap_LongTermDebtNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3574-108585 + Details
Name: | us-gaap_NetCashProvidedByUsedInFinancingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3574-108585 + Details
Name: | us-gaap_NetCashProvidedByUsedInInvestingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585 + Details
Name: | us-gaap_NetCashProvidedByUsedInOperatingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.18) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.22) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
Name: | us-gaap_OperatingExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate amount of other expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating expense recognized during the period. Such amounts may include: (a) unusual costs, (b) loss on foreign exchange transactions, (c) losses on securities (net of profits), and (d) miscellaneous other expense items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_OtherNonoperatingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_OtherNonoperatingIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
Name: | us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period end amount of total net PPE. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4590271-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4568740-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4568447-111683 + Details
Name: | us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=pseg_PowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=pseg_PowerSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_GuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_NonGuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_ConsolidationEliminationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=pseg_PowerParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |