v3.19.2

Equity, Equity Activity (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Changes in carrying amount of Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31 |  | $ 4,590 |  | $ 4,674 |  | $ 4,914 |  | $ 4,806 |  | $ 4,674 | $ 4,806 |  |
Partners Capital Contribution Other | [1] |  |  |  |  | 7 |  | 16 |  |  |  |  |
Distributions to common and preferred unitholders (a) | [2] | (241) |  | (261) |  | (206) |  | (213) |  |  |  |  |
Net earnings attributable to partners |  | 160 |  | 157 |  | 148 |  | 139 |  | 317 | 287 |  |
Cumulative effect of accounting standard adoption |  |  |  |  |  |  |  | (22) |  |  |  |  |
Contributions (b) |  | 25 | [1] | 19 | [1] | 139 |  | 197 |  |  |  |  |
Loss attributable to Predecessors |  | 0 |  |  |  | (16) | [3] | (8) |  | 0 | (24) | [3] |
Other |  |  |  | 1 |  | 1 |  | (1) |  |  |  |  |
Balance at March 31 |  | 4,534 |  | 4,590 |  | 4,987 |  | 4,914 |  | 4,534 | 4,987 |  |
Common unitholders; 245,630,444 units issued and outstanding (245,493,184 in 2018) |  | 3,931 |  |  |  |  |  |  |  | 3,931 |  |  |
Preferred unitholders; 600,000 units issued and outstanding in 2019 and 2018 |  | 603 |  |  |  |  |  |  |  | $ 603 |  |  |
Predecessor Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Changes in carrying amount of Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31 |  |  |  |  |  | 1,481 |  | 1,292 | [4] |  | 1,292 | [4] |
Partners Capital Contribution Other |  |  |  |  |  | 0 | [1] | 0 |  |  |  |  |
Distributions to common and preferred unitholders (a) |  |  |  |  |  | 0 |  | 0 |  |  |  |  |
Net earnings attributable to partners |  |  |  |  |  | 0 |  | 0 |  |  |  |  |
Cumulative effect of accounting standard adoption |  |  |  |  |  |  |  | 0 |  |  |  |  |
Contributions (b) |  |  |  |  |  | 139 |  | 197 | [4] |  |  |  |
Loss attributable to Predecessors |  |  |  |  |  | (16) |  | (8) | [4] |  |  |  |
Other |  |  |  |  |  | 0 |  | 0 |  |  |  |  |
Balance at March 31 |  |  |  |  |  | 1,604 | [4] | 1,481 |  |  | 1,604 | [4] |
Common |  |  |  |  |  |  |  |  |  |  |  |  |
Changes in carrying amount of Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31 |  | 3,997 |  |  |  | 2,839 |  | 2,925 |  |  | 2,925 |  |
Partners Capital Contribution Other | [1] |  |  |  |  | 7 |  | 16 |  |  |  |  |
Distributions to common and preferred unitholders (a) | [2] | 241 |  | 240 |  | (206) |  | (205) |  |  |  |  |
Net earnings attributable to partners |  | 150 |  | 147 |  | 138 |  | 125 |  |  |  |  |
Cumulative effect of accounting standard adoption |  |  |  |  |  |  |  | (22) |  |  |  |  |
Contributions (b) |  | 25 | [1] | 19 | [1] | 0 |  | 0 |  |  |  |  |
Loss attributable to Predecessors |  |  |  |  |  | 0 |  | 0 |  |  |  |  |
Other |  |  |  | 1 |  | 1 |  | 0 |  |  |  |  |
Balance at March 31 |  |  |  | 3,997 |  | 2,779 |  | 2,839 |  |  | 2,779 |  |
Common unitholders; 245,630,444 units issued and outstanding (245,493,184 in 2018) |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,070
Preferred Partner |  |  |  |  |  |  |  |  |  |  |  |  |
Changes in carrying amount of Equity |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31 |  | 593 |  |  |  | 594 |  | 589 |  |  | 589 |  |
Partners Capital Contribution Other | [1] |  |  |  |  | 0 |  | 0 |  |  |  |  |
Distributions to common and preferred unitholders (a) | [2] | 0 |  | 21 |  | 0 |  | (8) |  |  |  |  |
Net earnings attributable to partners |  | 10 |  | 10 |  | 10 |  | 14 |  |  |  |  |
Cumulative effect of accounting standard adoption |  |  |  |  |  |  |  | 0 |  |  |  |  |
Contributions (b) |  | $ 0 | [1] | 0 | [1] | 0 |  | 0 |  |  |  |  |
Loss attributable to Predecessors |  |  |  |  |  | 0 |  | 0 |  |  |  |  |
Other |  |  |  | 0 |  | 0 |  | (1) |  |  |  |  |
Balance at March 31 |  |  |  | $ 593 |  | $ 604 |  | $ 594 |  |  | $ 604 |  |
Preferred unitholders; 600,000 units issued and outstanding in 2019 and 2018 |  |  |  |  |  |  |  |  |  |  |  |  | $ 604
[1] | Includes Marathon and TLGP contributions to us primarily related to reimbursements for capital spending pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement.
[2] | Represents cash distributions declared and paid during the period.
[3] | Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.
[4] | Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.

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