v3.25.2
Debt Obligations - Summary Of Debt Obligations (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Feb. 28, 2025
Dec. 31, 2024
Current:      
Partnership accounts receivable securitization facility, due August 2025 [1]     $ 330.0
Debt issuance costs, net of amortization, current [2] $ (1.9)    
Finance lease liabilities 64.9   57.7
Current debt obligations 768.2   387.7
Long-term [Abstract]      
Long-term debt including Unamortized premium(discount) and Debt issuance costs 15,958.2   13,635.5
Debt issuance costs, net of amortization (115.5)   (89.0)
Finance lease liabilities 239.6   240.4
Long-term debt 16,082.3   13,786.9
Total debt obligations 16,850.5   14,174.6
Senior Unsecured Notes [Member]      
Long-term [Abstract]      
Unamortized discount (38.0) $ (6.1) (29.4)
Senior Unsecured Notes [Member] | Senior Unsecured 5.200% Fixed Rate, due July 2027 [Member]      
Long-term [Abstract]      
Long-term debt 750.0   750.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.150% Fixed Rate, due March 2029 [Member]      
Long-term [Abstract]      
Long-term debt 1,000.0   1,000.0
Senior Unsecured Notes [Member] | Senior Unsecured 4.900% Fixed Rate, due September 2030 [Member]      
Long-term [Abstract]      
Long-term debt [2] 750.0    
Senior Unsecured Notes [Member] | Senior Unsecured 4.200% Notes due February 2033 [Member]      
Long-term [Abstract]      
Long-term debt 750.0   750.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.125% Fixed Rate, due March 2033 [Member]      
Long-term [Abstract]      
Long-term debt 900.0   900.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due March 2034 [Member]      
Long-term [Abstract]      
Long-term debt 1,000.0   1,000.0
Senior Unsecured Notes [Member] | Senior Unsecured 5.500% Fixed Rate, due February 2035 [Member]      
Long-term [Abstract]      
Long-term debt 1,000.0   1,000.0
Senior Unsecured Notes [Member] | Senior Unsecured 5.500% Fixed Rate, due August 2035 [Member]      
Long-term [Abstract]      
Long-term debt [3] 1,000.0    
Senior Unsecured Notes [Member] | Senior Unsecured 5.650% Fixed Rate, due February 2036 [Member]      
Long-term [Abstract]      
Long-term debt [2] 750.0    
Senior Unsecured Notes [Member] | Senior Unsecured 4.950% Notes due April 2052 [Member]      
Long-term [Abstract]      
Long-term debt 750.0   750.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.250% fixed rate, due July 2052 [Member]      
Long-term [Abstract]      
Long-term debt 500.0   500.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due February 2053 [Member]      
Long-term [Abstract]      
Long-term debt 850.0   850.0
Senior Unsecured Notes [Member] | Senior Unsecured 6.125% Fixed Rate, due May 2055 [Member]      
Long-term [Abstract]      
Long-term debt [3] 1,000.0    
Senior Unsecured Notes [Member] | Senior Unsecured 6.500% Fixed Rate, due July 2027 [Member] | Targa Resources Partners LP [Member]      
Current:      
Long-term debt current [2],[4] 705.2    
Long-term [Abstract]      
Long-term debt [2]     705.2
Senior Unsecured Notes [Member] | Senior Unsecured 5.000% Notes due January 2028 [Member] | Targa Resources Partners LP [Member]      
Long-term [Abstract]      
Long-term debt 700.3   700.3
Senior Unsecured Notes [Member] | Senior Unsecured of 6.875% Senior Notes due January 2029 [Member] | Targa Resources Partners LP [Member]      
Long-term [Abstract]      
Long-term debt 679.3   679.3
Senior Unsecured Notes [Member] | Senior Unsecured of 5.500% Senior Notes due March 2030 [Member] | Targa Resources Partners LP [Member]      
Long-term [Abstract]      
Long-term debt 949.6   949.6
Senior Unsecured Notes [Member] | Senior Unsecured of 4.875% Senior Notes due February 2031 [Member] | Targa Resources Partners LP [Member]      
Long-term [Abstract]      
Long-term debt 1,000.0   1,000.0
Senior Unsecured Notes [Member] | Senior Unsecured of 4.000% Senior Notes due January 2032 [Member] | Targa Resources Partners LP [Member]      
Long-term [Abstract]      
Long-term debt 1,000.0   1,000.0
Revolving Credit Facility [Member] | TRGP Senior Revolving Credit Facility due February 2030 [Member]      
Long-term [Abstract]      
Long-term debt [5] 667.0   1,130.5
Revolving Credit Facility [Member] | TRGP Senior Revolving Credit Facility due February 2030 [Member] | Targa Resources Partners LP [Member]      
Long-term [Abstract]      
Letters of credit outstanding [5] $ 9.4   $ 17.6
[1] As of June 30, 2025, the Partnership had no amount drawn under its $600.0 million accounts receivable securitization facility (the “Securitization Facility”), resulting in $600.0 million of remaining availability. In July 2025, the Partnership amended the Securitization Facility to, among other things, extend the facility termination date to August 31, 2026.
[2] In June 2025, we completed an underwritten public offering of (i) $750.0 million aggregate principal amount of our 4.900% Senior Unsecured Notes due 2030 and (ii) $750.0 million aggregate principal amount of our 5.650% Senior Unsecured Notes due 2036, resulting in net proceeds of approximately $1.5 billion. The net proceeds were initially used to reduce borrowings under the Securitization Facility and Commercial Paper Program as reflected on the balance sheet as of June 30, 2025. A conditional notice of redemption of all of the Partnership’s 6.500% Senior Unsecured Notes due 2027 was issued in June 2025, resulting in the classification of the notes within Current debt obligations on our Consolidated Balance Sheets as of June 30, 2025. In July 2025, we used borrowings under the Securitization Facility and Commercial Paper Program to fund the redemption of all of the Partnership’s 6.500% Senior Unsecured Notes due 2027.
[3] In February 2025, we completed an underwritten public offering of (i) $1.0 billion aggregate principal amount of our 5.550% Senior Unsecured Notes due 2035 and (ii) $1.0 billion aggregate principal amount of our 6.125% Senior Unsecured Notes due 2055, resulting in net proceeds of approximately $2.0 billion.
[4] We guarantee all of the Partnership’s outstanding senior unsecured notes.
[5] In February 2025, we entered into a new $3.5 billion TRGP senior revolving credit facility (the “TRGP Revolver”), which matures in February 2030. In connection with our entry into the TRGP Revolver, we terminated our previous TRGP senior revolving credit facility (the “Previous TRGP Revolver”). We maintain an unsecured commercial paper note program (the “Commercial Paper Program”), the borrowings of which are supported through maintaining a minimum available borrowing capacity under the TRGP Revolver equal to the aggregate amount outstanding under the Commercial Paper Program at any one time not to exceed $3.5 billion. The TRGP Revolver had no borrowings outstanding and the Commercial Paper Program had $667.0 million of borrowings outstanding, resulting in approximately $2.8 billion of available liquidity as of June 30, 2025, after accounting for outstanding letters of credit.