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Revenue Recognition (Tables)
 6 Months Ended
Jun. 30, 2022
Revenue Recognition [Abstract]  
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
The following table summarizes our contract assets and contract liabilities (in millions):

June 30, 2022December 31, 2021
Contract assets (non-current)
$1.1 $1.3 
Contract liabilities (current)(1)
$11.9 $10.7 
Contract liabilities (non-current)(1)
$203.7 $187.1 

(1)During the three and six months ended June 30, 2022, we recognized revenues of approximately $3.7 million and $7.2 million that were previously included in contract liabilities at December 31, 2021. The remaining change in our contract liabilities during the three and six months ended June 30, 2022 related to capital reimbursements associated with our revenue contracts and revenue deferrals associated with our contracts with increasing (decreasing) rates.
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
The following table summarizes the transaction price allocated to our remaining performance obligations under certain contracts that have not been recognized as of June 30, 2022 (in millions):
Remainder of 2022$47.6 
202370.4 
202445.8 
20253.2 
20260.5 
Thereafter1.3 
Total$168.8 
Disaggregation of Revenue The following tables summarize our revenues from contracts with customers disaggregated by type of product/service sold and by commodity type for each of our segments for the three and six months ended June 30, 2022 and 2021 (in millions). We believe this summary best depicts how the nature, amount, timing and uncertainty of our revenues and cash flows are affected by economic factors. Our non-Topic 606 revenues presented in the tables below primarily represents revenues related to our commodity-based derivatives.
Three Months Ended June 30, 2022
Gathering and Processing North
Gathering and Processing South
Storage and Logistics
Intersegment Elimination
Total
Topic 606 revenues
Gathering
Natural gas
$32.9 $24.5 $— $— $57.4 
Crude oil
14.1 1.9 — — 16.0 
Water
41.2 3.3 — — 44.5 
Processing
Natural gas
19.7 1.2 — — 20.9 
Compression
Natural gas
— 3.1 — — 3.1 
Storage
Crude oil
0.6 — 0.3 (0.1)0.8 
NGLs
— — 1.9 — 1.9 
Pipeline
Crude oil
— — 0.4 — 0.4 
NGLs
— — 0.1 — 0.1 
Transportation
Crude oil
1.5 0.3 — (0.1)1.7 
NGLs
— — 5.5 — 5.5 
Product Sales
Natural gas
95.6 0.6 160.9 (73.5)183.6 
Crude oil
145.9 — 393.5 (12.9)526.5 
NGLs
77.5 — 461.2 (65.0)473.7 
Water
1.3 — — — 1.3 
Other
0.4 — — — 0.4 
Total Topic 606 revenues
430.7 34.9 1,023.8 (151.6)1,337.8 
Non-Topic 606 revenues
0.3 0.4 109.5 — 110.2 
Total revenues
$431.0 $35.3 $1,133.3 $(151.6)$1,448.0 
Three Months Ended June 30, 2021
Gathering and Processing North
Gathering and Processing South
Storage and Logistics
Intersegment Elimination
Total
Topic 606 revenues
Gathering
Natural gas
$13.6 $19.7 $— $— $33.3 
Crude oil
18.4 — — — 18.4 
Water
22.7 — — — 22.7 
Processing
Natural gas
6.1 1.2 — — 7.3 
Compression
Natural gas
— 3.7 — — 3.7 
Storage
Crude oil
0.1 — 0.1 (0.1)0.1 
NGLs
— — 2.4 — 2.4 
Pipeline
Crude oil
— — 0.6 — 0.6 
NGLs
— — 0.1 — 0.1 
Transportation
Crude oil
0.4 — — — 0.4 
NGLs
— — 4.2 — 4.2 
Rail Loading
Crude oil
— — 1.2 — 1.2 
Product Sales
Natural gas
26.7 0.1 44.3 (26.8)44.3 
Crude oil
101.7 — 344.4 (14.7)431.4 
NGLs
42.9 — 304.8 (42.6)305.1 
Other
— — 0.7 — 0.7 
Total Topic 606 revenues
232.6 24.7 702.8 (84.2)875.9 
Non-Topic 606 revenues
0.2 — 53.5 — 53.7 
Total revenues
$232.8 $24.7 $756.3 $(84.2)$929.6 
Six Months Ended June 30, 2022
Gathering and Processing North
Gathering and Processing South
Storage and Logistics
Intersegment Elimination
Total
Topic 606 revenues
Gathering
Natural gas
$58.8 $46.9 $— $— $105.7 
Crude oil
28.9 2.9 — — 31.8 
Water
75.9 5.5 — — 81.4 
Processing
Natural gas
34.1 2.3 — — 36.4 
Compression
Natural gas
— 6.6 — — 6.6 
Storage
Crude oil
1.1 — 0.3 (0.2)1.2 
NGLs
— — 4.7 — 4.7 
Pipeline
Crude oil
— — 0.9 — 0.9 
NGLs
— — 0.1 — 0.1 
Transportation
Crude oil
2.7 0.4 — (0.1)3.0 
NGLs
— — 11.3 — 11.3 
Rail Loading
Crude oil
— — 0.4 — 0.4 
Product Sales
Natural gas
159.5 0.9 259.6 (125.6)294.4 
Crude oil
274.0 — 767.5 (24.1)1,017.4 
NGLs
154.4 — 1,093.9 (129.0)1,119.3 
Water
2.9 — — — 2.9 
Other
0.6 — 0.3 — 0.9 
Total Topic 606 revenues
792.9 65.5 2,139.0 (279.0)2,718.4 
Non-Topic 606 revenues
0.7 0.5 312.2 — 313.4 
Total revenues
$793.6 $66.0 $2,451.2 $(279.0)$3,031.8 
Six Months Ended June 30, 2021
Gathering and Processing North
Gathering and Processing South
Storage and Logistics
Intersegment Elimination
Total
Topic 606 revenues
Gathering
Natural gas
$26.8 $37.9 $— $— $64.7 
Crude oil
39.1 — — — 39.1 
Water
44.7 — — — 44.7 
Processing
Natural gas
11.9 2.4 — — 14.3 
Compression
Natural gas
— 8.4 — — 8.4 
Storage
Crude oil
0.2 — 0.3 (0.2)0.3 
NGLs
— — 6.1 — 6.1 
Pipeline
Crude oil
— — 1.4 — 1.4 
NGLs
— — 0.1 — 0.1 
Transportation
Crude oil
1.1 — — — 1.1 
NGLs
— — 8.4 — 8.4 
Rail Loading
Crude oil
— — 2.2 — 2.2 
Product Sales
Natural gas
69.0 0.6 139.9 (69.0)140.5 
Crude oil
191.7 — 595.6 (37.4)749.9 
NGLs
83.2 — 710.8 (82.9)711.1 
Other
— — 0.9 — 0.9 
Total Topic 606 revenues
467.7 49.3 1,465.7 (189.5)1,793.2 
Non-Topic 606 revenues
0.2 — 168.9 — 169.1 
Total revenues
$467.9 $49.3 $1,634.6 $(189.5)$1,962.3