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Income Taxes (Deferred Income Tax) (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Income Taxes [Line Items] |  |
OPEB | $ 283 | $ 256
Related to Uncertain Tax Positions | 155 | 160
Deferred Tax Assets - Securitization Overcollection | 0 | 27
Total Noncurrent Assets | 438 | 443
Plant-Related Items | 6,593 | 6,174
New Jersey Corporate Business Tax | 674 | 615
Leasing Activities | 565 | 612
Pension Costs | 197 | 218
AROs and NDT Fund | 398 | 393
Taxes Recoverable Through Future Rate (net) | 208 | 191
Deferred Tax Liabilities, Other | 212 | 244
Total Non-Current Liabilities | 8,847 | 8,447
Accumulated Deferred Investment Tax Credit | 249 | 162
Net Total Noncurrent Deferred Income Taxes and ITC | 8,658 | 8,166
Deferred Tax Liabilities, Net, Noncurrent | 8,409 | 8,004
PSE&G [Member] |  |
Income Taxes [Line Items] |  |
OPEB | 189 | 164
Deferred Tax Assets - Securitization Overcollection | 0 | 27
Total Noncurrent Assets | 189 | 191
Plant-Related Items | 4,983 | 4,435
New Jersey Corporate Business Tax | 385 | 312
Conservation Costs | 33 | 40
Pension Costs | 252 | 262
Taxes Recoverable Through Future Rate (net) | 208 | 191
Deferred Tax Liabilities, Other | 118 | 54
Total Non-Current Liabilities | 5,979 | 5,294
Accumulated Deferred Investment Tax Credit | 83 | 78
Net Total Noncurrent Deferred Income Taxes and ITC | 5,873 | 5,181
Deferred Tax Liabilities, Net, Noncurrent | 5,790 | 5,103
Power [Member] |  |
Income Taxes [Line Items] |  |
Contractual Liabilities & Environmental Costs | 18 | 18
Related to Uncertain Tax Positions | 53 | 47
Other | 76 | 0
Total Noncurrent Assets | 215 | 121
Plant-Related Items | 1,605 | 1,736
New Jersey Corporate Business Tax | 214 | 243
AROs and NDT Fund | 400 | 395
Deferred Tax Liabilities, Other | 0 | 10
Total Non-Current Liabilities | 2,219 | 2,384
Accumulated Deferred Investment Tax Credit | 166 | 84
Net Total Noncurrent Deferred Income Taxes and ITC | 2,170 | 2,347
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions | 68 | 56
Deferred Tax Liabilities, Net, Noncurrent | $ 2,004 | $ 2,263

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