v3.25.0.1
Debt Obligations - Schedule of Contractual Maturities of Debt Obligations (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Contractual Obligation [Line Items]  
Total $ 13,994.9
2025 330.0
2026 0.0
2027 2,585.7
2028 700.3
2029 1,679.3
Thereafter 8,699.6
Securitization Facility | Targa Resources Partners LP [Member]  
Contractual Obligation [Line Items]  
Total 330.0
2025 330.0
2026 0.0
2027 0.0
2028 0.0
2029 0.0
Thereafter 0.0
Senior Unsecured Notes [Member] | Targa Resources Partners LP [Member]  
Contractual Obligation [Line Items]  
Total 5,034.4
2025 0.0
2026 0.0
2027 705.2
2028 700.3
2029 679.3
Thereafter 2,949.6
Existing TRGP Revolver and Commercial Paper Program [Member] | Targa Resources Partners LP [Member]  
Contractual Obligation [Line Items]  
Total 1,130.5
2025 0.0
2026 0.0
2027 1,130.5
2028 0.0
2029 0.0
Thereafter 0.0
TRGP Senior Unsecured Notes [Member] | Targa Resources Partners LP [Member]  
Contractual Obligation [Line Items]  
Total 7,500.0
2025 0.0
2026 0.0
2027 750.0
2028 0.0
2029 1,000.0
Thereafter $ 5,750.0