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Consolidated Balance Sheets (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 12 $ 6
Accounts receivable, net 152 144
Unbilled revenues 97 101
Inventories, at average cost:    
Materials and supplies 38 37
Fuel 40 34
Margin deposit 46 80
Regulatory assets--current 144 216
Other current assets 93 98
Total current assets 622 716
Electric utility plant:    
Production 2,899 2,854
Transmission 412 393
Distribution 2,816 2,704
General 327 314
Intangible 357 331
Construction work in progress 140 120
Total electric utility plant 6,951 6,716
Accumulated depreciation and amortization (2,559) (2,431)
Electric utility plant, net 4,392 4,285
Regulatory assets--noncurrent 524 594
Nuclear decommissioning trust 38 37
Non-qualified benefit plan trust 32 36
Other noncurrent assets 62 65
Total assets 5,670 5,733
Current liabilities:    
Accounts payable 98 111
Liabilities from price risk management activities-current 127 216
Short-term debt 17 30
Current portion of long-term debt 100 100
Regulatory liabilities--current 12 6
Accrued expenses and other current liabilities 179 157
Total current liabilities 521 614
Long-term debt, net of current portion 1,536 1,635
Regulatory liabilities--noncurrent 765 720
Deferred income taxes 588 529
Liabilities from price risk management activities--noncurrent 73 172
Unfunded status of pension and postretirement plans 247 195
Non-qualified benefit plan liabilities 102 101
Asset Retirement Obligation 94 87
Other noncurrent liabilities 14 14
Total liabilities 3,940 4,067
Portland General Electric Company shareholders’ equity:    
Preferred stock, no par value, 30,000,000 shares authorized; none issued and outstanding 0 0
Common stock, no par value, 160,000,000 shares authorized; 75,556,272 and 75,362,956 shares issued and outstanding as of December 31, 2012 and 2011, respectively 841 836
Accumulated other comprehensive loss (6) (6)
Retained earnings 893 833
Total Portland General Electric Company shareholders’ equity 1,728 1,663
Noncontrolling interests' equity 2 3
Total equity 1,730 1,666
Total liabilities and equity $ 5,670 $ 5,733