Sale of First Choice	12 Months Ended
Sale of First Choice	Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Sale of First Choice	Sale of First Choice PNMR completed the sale of First Choice, which was also a subsidiary of TNP, on November 1, 2011. First Choice was a competitive REP operating in Texas. The amount received was subject to adjustment based on the actual amounts of the components of working capital at October 31, 2011. In 2012, PNMR received an additional amount and recorded a pre-tax gain of $1.0 million, which is included in Other income in the Consolidated Statements of Earnings. PNMR Services Company continued to provide certain services at cost to First Choice for a transitional period through August 1, 2012. Because PNMR continues to have direct cash flows resulting from transmission and distribution services provided by TNMP to First Choice, First Choice is not reflected as discontinued operations.

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

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