Related Party Transactions Related Party Transactions (Notes)	9 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions On October 10, 2014, U.S. Bancorp announced the appointment of Kimberly Harris to its board of directors effective October 20, 2014. Ms. Harris is the president and chief executive officer of both Puget Sound Energy, Inc. and Puget Energy, Inc. U.S. Bancorp is the parent company of U.S. Bank N.A., which directly or through its subsidiaries or affiliates provides credit, banking, investment and trust services to both Puget Energy and Puget Sound Energy. For the nine months ended September 30, 2014, Puget Energy and Puget Sound Energy paid a total of approximately $0.7 million in fees and interest to U.S. Bank N.A. and its subsidiaries or affiliates.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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