v3.7.0.1

Note 11 - Equity Unit Issuance and ATM Program (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 10, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Aug. 24, 2015
General partner units issued (units) |  | 2,100,900 |  | 1,900,515 |  |
General partner’s ownership interest |  | 2.00% |  | 2.00% | 2.00% |
Common units issued (units) | 6,300,000 | 102,981,495 |  | 93,478,326 |  |
Common Stock, Call or Exercise Features | 825000 |  |  |  |  |
Price per unit (dollars per unit) | $ 47.13 |  |  |  |  |
Proceeds from Issuance of Common Limited Partners Units |  | $ 364 |  | $ 95 | $ 1,449 |
Equity Instrument Regulatory Filing Date |  | Jun. 25, 2014 |  |  |  |
Units issued in equity offering (units) |  | 6,300,000 | [1] |  | 2,100,000 |
Equity offering under ATM Program, net of issuance costs |  | $ 71 |  | 99 | $ 1,478 |
Common |  |  |  |  |  |
Proceeds from Issuance of Common Limited Partners Units | $ 293 |  |  |  |  |
Units issued in equity offering (units) |  | 6,300,000 | [1] |  | 2,100,000 |
Equity offering under ATM Program, net of issuance costs |  | $ 71 |  | 95 | $ 1,449 |
Limited Partner Units, Public |  |  |  |  |  |
Limited Partners' Capital Account, Units Outstanding |  | 68,926,453 |  |  |  |
Limited Partner Units, Affiliate |  |  |  |  |  |
Limited Partners' Capital Account, Units Outstanding |  | 34,055,042 |  |  |  |
General Partner |  |  |  |  |  |
Units issued in equity offering (units) |  | 0 | [1] |  | 0 |
Equity offering under ATM Program, net of issuance costs |  | $ 0 |  | 4 | $ 29 |
Subordinated |  |  |  |  |  |
Units issued in equity offering (units) |  | 0 | [1] |  | 0 |
Equity offering under ATM Program, net of issuance costs |  | $ 0 |  | $ 0 | $ 0 |
2014ATMProgram |  |  |  |  |  |
Common Units Aggregate Value |  | $ 200 |  |  |  |
Units issued in equity offering (units) |  |  |  | 819,513 |  |
Common Unit, Issued |  |  |  |  | 199,400 |
Equity offering under ATM Program, net of issuance costs |  |  |  | $ 46 |  |
Proceeds from Sale of Interest in Partnership Unit |  |  |  |  | $ 14 |
2015ATMProgram |  |  |  |  |  |
Common Units Aggregate Value |  |  |  |  |  | $ 750
Units issued in equity offering (units) |  | 1,492,637 |  |  |  |
Common Unit, Issued |  |  |  | 1,093,483 |  |
Equity offering under ATM Program, net of issuance costs |  | $ 72 |  |  |  |
Proceeds from Sale of Interest in Partnership Unit |  |  |  | $ 57 |  |
Affiliated Entity |  |  |  |  |  |
Limited partnership, ownership interest |  | 34.00% |  |  |  |
General Partner | General Partner |  |  |  |  |  |
General partner units issued (units) |  | 2,100,900 |  |  |  |
[1] | In June 2016, we issued common units representing limited partner interests in a registered public offering, including the over-allotment option exercised by the underwriter for the purchase of common units.

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