Revenues - Performance Obligations (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues from contracts with customers from unsatisfied performance obligations as of March 31, 2025 (2)	$ 14,134.5
Operating revenues which are fixed and determinable (operating leases)	184.5
Total projected operating revenues under committed firm agreements as of March 31, 2025 (3)	14,319.0
Fixed fee revenues recognized	$ 426.2
Firm storage, term of contract for particular customer	108 years
Estimated annual revenue from particular customer	$ 3.1
Revenue remaining performance obligation for particular customer	$ 328.5
Days of collateral required for particular customer	90 days
Revenue Remaining Performance Obligation, Amount, Precedent Transportation Agreements	$ 4,000.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	9 months
Estimated revenues from contracts with customers from unsatisfied performance obligations as of March 31, 2025 (2)	$ 1,146.5
Operating revenues which are fixed and determinable (operating leases)	21.0
Total projected operating revenues under committed firm agreements as of March 31, 2025 (3)	$ 1,167.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	1 year
Estimated revenues from contracts with customers from unsatisfied performance obligations as of March 31, 2025 (2)	$ 1,409.0
Operating revenues which are fixed and determinable (operating leases)	27.5
Total projected operating revenues under committed firm agreements as of March 31, 2025 (3)	$ 1,436.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period
Estimated revenues from contracts with customers from unsatisfied performance obligations as of March 31, 2025 (2)	$ 11,579.0
Operating revenues which are fixed and determinable (operating leases)	136.0
Total projected operating revenues under committed firm agreements as of March 31, 2025 (3)	$ 11,715.0