Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues, net	$ 1,898	$ 1,900	$ 1,810
Operating expenses:
Purchased power and fuel	661	713	757
Generation, transmission and distribution	266	257	225
Cascade Crossing transmission project	0	0	52
Administrative and other	241	227	219
Depreciation and amortization	305	301	248
Taxes other than income taxes	116	109	103
Total operating expenses	1,589	1,607	1,604
Income from operations	309	293	206
Interest expense, net	114	96	101
Other income:
Allowance for equity funds used during construction	21	37	13
Miscellaneous income, net	1	1	7
Other income, net	22	38	20
Income before income taxes	217	235	125
Income tax expense	45	61	21
Net income	172	174	104
Less: net loss attributable to noncontrolling interest	0	(1)	(1)
Net income attributable to Portland General Electric Company	$ 172	$ 175	$ 105
Weighted-average shares outstanding (in thousands):
Basic	84,180	78,180	76,821
Diluted	84,341	80,494	77,388
Earnings per share:
Basic	$ 2.05	$ 2.24	$ 1.36
Diluted	$ 2.04	$ 2.18	$ 1.35