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v3.19.1

Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Mar. 29, 2018
Decrease (increase) in: |  |  |  |
Accounts receivable - trade | $ (653.0) | $ (106.8) |  |
Accounts receivable - related parties | 2.0 | (0.8) |  |
Inventories | (84.5) | (19.5) |  |
Prepaid and other current assets | (223.4) | (71.9) |  |
Other assets | (13.2) | (10.3) |  |
Increase (decrease) in: |  |  |  |
Accounts payable - trade | (35.7) | (53.1) |  |
Accounts payable - related parties | (7.9) | (0.9) |  |
Accrued product payables | 673.0 | 328.4 |  |
Accrued interest | (178.7) | (147.3) |  |
Other current liabilities | (8.4) | (106.9) |  |
Other liabilities | (30.0) | (14.0) |  |
Net effect of changes in operating accounts | (559.8) | (203.1) |  |
Liability for construction in progress expenditures | 380.2 |  | $ 567.6 |
Business Combination |  |  |  |
Cash used for business combinations, net of cash received | 0.0 | 149.8 |  |
Gain on step acquisition of Delaware Processing | $ 0.0 | 37.0 |  |
Delaware Basin Gas Processing LLC [Member] |  |  |  |
Business Combination |  |  |  |
Remaining membership interest acquired |  |  |  | 50.00%
Cash used for business combinations, net of cash received |  | 150.0 |  |
Gain on step acquisition of Delaware Processing |  | $ 37.0 |  |

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