Basis of Presentation (Notes)	3 Months Ended
Basis of Presentation (Notes)	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Note A – Basis of Presentation The accompanying unaudited financial statements of National Property Investors 6 (the "Partnership" or "Registrant") have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 8-03 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of NPI Equity Investments, Inc. (the "Managing General Partner"), all adjustments (consisting of normal recurring items) considered necessary for a fair presentation have been included. The balance sheet at December 31, 2014 has been derived from the audited financial statements at that date but does not include all of the information and disclosures required by generally accepted accounting principles for complete financial statements. For further information, refer to the financial statements and footnotes thereto included in the Partnership's Annual Report on Form 10-K for the fiscal year ended December 31, 2014. The Managing General Partner is an affiliate of Apartment Investment and Management Company ("Aimco"), a publicly traded real estate investment trust. At March 31, 2015 and December 31, 2014, the Partnership had outstanding 109,446 and 109,496 units of limited partnership interest, respectively. Net income or loss per Limited Partnership Unit is computed by dividing the net income or loss allocated to the limited partners by the number of Limited Partnership Units outstanding at the beginning of the corresponding period. As discussed in Note C, the Partnership sold its sole investment property on March 31, 2015, and, in accordance with the terms of its Partnership Agreement, has commenced dissolution of the Partnership, which includes repayment of outstanding advances to an affiliate of the Managing General Partner and distribution of remaining amounts available for distribution to the partners. The Partnership’s management evaluated subsequent events through the time this Quarterly Report on Form 10-Q was filed. Certain reclassifications have been made to the 2014 balances to conform to the 2015 presentation, specifically related to reflecting the discontinued operations and held for sale presentations.

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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NATIONAL PROPERTY INVESTORS 6 10-Q