The allocation of total quarterly cash distributions to general and limited partners is as follows for the years ended December 31, 2015, 2014 and 2013 (in millions). Our distributions are declared subsequent to quarter end; therefore, the following table represents total cash distributions applicable to the period in which the distributions are earned. | | | | | | | | | | | | | | Years Ended December 31, | | 2015 | | 2014 | | 2013 | General partner’s distributions: | | | | | | General partner’s distributions | $ | 6 |
| | $ | 5 |
| | $ | 2 |
| General partner’s IDRs (a) | 69 |
| | 41 |
| | 11 |
| Total general partner’s distributions | $ | 75 |
| | $ | 46 |
| | $ | 13 |
| | | | | | | Limited partners’ distributions: | | | | | | Common | $ | 259 |
| | $ | 157 |
| | $ | 71 |
| Subordinated | — |
| | 14 |
| | 32 |
| Total limited partners’ distributions | 259 |
| | 171 |
| | 103 |
| Total Cash Distributions | $ | 334 |
| | $ | 217 |
| | $ | 116 |
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____________ | | (a) | In connection with the Rockies Natural Gas Business Acquisition, our general partner waived its right to $10 million of general partner distributions with respect to IDRs during 2015. |
The table below summarizes the quarterly distributions: | | | | | | | | | | | | | Quarter Ended | Quarterly Distribution Per Unit | | Total Cash Distribution including general partner IDRs (in millions) | | Date of Distribution | | Unitholders Record Date | March 31, 2016 | $ | 0.810 |
| | $ | 108 |
| | May 13, 2016 | | May 2, 2016 | June 30, 2016 | 0.842 |
| | 123 |
| | August 12, 2016 | | August 2, 2016 | September 30, 2016 (a) | 0.875 |
| | 131 |
| | November 14, 2016 | | November 4, 2016 |
| | (a) | This distribution was declared on October 18, 2016 and was paid on the date of distribution. |
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