Organization and Business Operations (Starburst II, Inc. [Member])	6 Months Ended
Jun. 30, 2013
Starburst II, Inc. [Member]
Organization and Basis of Presentation [Line Items]
Business Description and Basis of Presentation [Text Block]	NOTE 1. ORGANIZATION AND BUSINESS OPERATIONS Starburst II, Inc. (Starburst II) was incorporated in Delaware on October 5, 2012 and established by SoftBank Corp., (SoftBank), a kabushiki kaisha organized under the laws of Japan and headquartered in Tokyo, for purposes of (i) directly owning Starburst III, Inc. (Merger Sub), (ii) acquiring a controlling interest in Sprint Nextel Corporation (Sprint Nextel) and (iii) undertaking the actions and completing the transactions contemplated by the merger (SoftBank Merger) contemplated by the Agreement and Plan of Merger, dated as of October 15, 2012, as amended as of November 29, 2012, April 12, 2013 and June 10, 2013 (as amended, the Merger Agreement) and the Bond Purchase Agreement (Bond Agreement), each as more fully described below. Starburst II means Starburst II and its consolidated subsidiary prior to the consummation of the SoftBank Merger. Starburst II was renamed Sprint Corporation following the consummation of the SoftBank Merger on July 10, 2013 as further described in Note 7, Subsequent Events. Sprint Corporation has also become the successor registrant to Sprint Nextel Corporation pursuant to Rule 12g-3 under the Securities Exchange Act of 1934 (Exchange Act) and has become the entity subject to the reporting requirements of the Exchange Act for filings with the Securities and Exchange Commission (SEC) subsequent to the consummation of the SoftBank Merger. Any references to "we," "us," "our" or the "Company" refer to Sprint Corporation, the successor registrant to Sprint Nextel Corporation. These defined terms are only applicable to this Form 10-Q and not the appendix attached hereto. Starburst I, Inc. (HoldCo) is a wholly owned subsidiary of SoftBank. Prior to completion of the SoftBank Merger, Starburst II was a wholly owned subsidiary of HoldCo and Merger Sub was a wholly owned subsidiary of Starburst II. On July 10, 2013, pursuant to the Bond Agreement and Merger Agreement, Merger Sub merged with and into Sprint Nextel, with Sprint Nextel surviving the SoftBank Merger as a wholly owned subsidiary of Starburst II. Upon consummation of the SoftBank Merger, Starburst II amended and restated its certificate of incorporation, which changed its name to Sprint Corporation and authorized for issuance 9,000,000,000 shares of $0.01 par value per share voting common stock (Sprint Corporation Common Stock), 1,000,000,000 shares of non-voting common stock and 20,000,000 shares of preferred stock. All shares of Starburst II Class B common stock held by HoldCo were reclassified into Sprint Corporation Common Stock. See Note 7, Subsequent Events, for additional details on the consummation of the SoftBank Merger.

NOTE 1. ORGANIZATION AND BUSINESS OPERATIONS

Starburst II, Inc. (Starburst II) was incorporated in Delaware on October 5, 2012 and established by SoftBank Corp., (SoftBank), a kabushiki kaisha organized under the laws of Japan and headquartered in Tokyo, for purposes of (i) directly owning Starburst III, Inc. (Merger Sub), (ii) acquiring a controlling interest in Sprint Nextel Corporation (Sprint Nextel) and (iii) undertaking the actions and completing the transactions contemplated by the merger (SoftBank Merger) contemplated by the Agreement and Plan of Merger, dated as of October 15, 2012, as amended as of November 29, 2012, April 12, 2013 and June 10, 2013 (as amended, the Merger Agreement) and the Bond Purchase Agreement (Bond Agreement), each as more fully described below. Starburst II means Starburst II and its consolidated subsidiary prior to the consummation of the SoftBank Merger. Starburst II was renamed Sprint Corporation following the consummation of the SoftBank Merger on July 10, 2013 as further described in Note 7, Subsequent Events. Sprint Corporation has also become the successor registrant to Sprint Nextel Corporation pursuant to Rule 12g-3 under the Securities Exchange Act of 1934 (Exchange Act) and has become the entity subject to the reporting requirements of the Exchange Act for filings with the Securities and Exchange Commission (SEC) subsequent to the consummation of the SoftBank Merger. Any references to "we," "us," "our" or the "Company" refer to Sprint Corporation, the successor registrant to Sprint Nextel Corporation. These defined terms are only applicable to this Form 10-Q and not the appendix attached hereto.

Starburst I, Inc. (HoldCo) is a wholly owned subsidiary of SoftBank. Prior to completion of the SoftBank Merger, Starburst II was a wholly owned subsidiary of HoldCo and Merger Sub was a wholly owned subsidiary of Starburst II. On July 10, 2013, pursuant to the Bond Agreement and Merger Agreement, Merger Sub merged with and into Sprint Nextel, with Sprint Nextel surviving the SoftBank Merger as a wholly owned subsidiary of Starburst II. Upon consummation of the SoftBank Merger, Starburst II amended and restated its certificate of incorporation, which changed its name to Sprint Corporation and authorized for issuance 9,000,000,000 shares of $0.01 par value per share voting common stock (Sprint Corporation Common Stock), 1,000,000,000 shares of non-voting common stock and 20,000,000 shares of preferred stock. All shares of Starburst II Class B common stock held by HoldCo were reclassified into Sprint Corporation Common Stock. See Note 7, Subsequent Events, for additional details on the consummation of the SoftBank Merger.