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Debt Obligations - Schedule of Contractual Maturities of Debt Obligations (Details) $ in Millions | Dec. 31, 2020 USD ($)
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Contractual Obligation [Line Items] |
Total | $ 7,770.4
2021 | 356.5
2022 | 0.0
2023 | 1,467.0
2024 | 0.0
2025 | 481.0
After 2025 | 5,465.9
Securitization Facility | Targa Resources Partners LP [Member] |
Contractual Obligation [Line Items] |
Total | 350.0
2021 | 350.0
2022 | 0.0
2023 | 0.0
2024 | 0.0
2025 | 0.0
After 2025 | 0.0
Senior Unsecured Notes [Member] | Targa Resources Partners LP [Member] |
Contractual Obligation [Line Items] |
Total | 6,585.4
2021 | 6.5
2022 | 0.0
2023 | 632.0
2024 | 0.0
2025 | 481.0
After 2025 | 5,465.9
TRC Revolver [Member] |
Contractual Obligation [Line Items] |
Total | 555.0
2021 | 0.0
2022 | 0.0
2023 | 555.0
2024 | 0.0
2025 | 0.0
After 2025 | 0.0
TRP Revolver [Member] |
Contractual Obligation [Line Items] |
Total | 280.0
2021 | 0.0
2022 | 0.0
2023 | 280.0
2024 | 0.0
2025 | 0.0
After 2025 | $ 0.0

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