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Debt Obligations Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Apr. 01, 2022
Debt Instrument [Line Items]      
Long-term Line of Credit $ 559.0    
Repayments of Long-term Debt 12,819.0 $ 13,425.0  
Proceeds from Issuance of Long-term Debt $ 11,798.0 $ 8,245.0  
Banking Regulation, Supplementary Leverage Ratio, Actual 3.45    
Dakota Access      
Debt Instrument [Line Items]      
Senior Notes     $ 650.0
Debt Instrument, Interest Rate, Stated Percentage     3.625%
Equity Method Investment, Ownership Percentage     36.40%
ETO Credit Facility due December 2022 [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Current Borrowing Capacity $ 2,440.0    
Long-term Line of Credit 2,530.0    
Letters of Credit Outstanding, Amount $ 33.0    
Line of Credit Facility, Interest Rate at Period End 2.68%    
Line of Credit Facility, Maximum Borrowing Capacity $ 5,000.0    
Commercial Paper 1,030.0    
ETO Credit Facility due December 2022 [Member] | Accordion feature [Member]      
Debt Instrument [Line Items]      
Long-term Line of Credit 7,000.0    
Sunoco LP $1.5 billion Revolving Credit Facility due July 2023 [Member] | Sunoco LP [Member]      
Debt Instrument [Line Items]      
Letters of Credit Outstanding, Amount $ 6.0    
Line of Credit Facility, Interest Rate at Period End 3.48%    
Line of Credit Facility, Remaining Borrowing Capacity $ 625.0    
Line of Credit Facility, Fair Value, Basis for Measurement 869 million    
SemCAMS C$350 million senior secured term loan facility [Member] | SemCAMS [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Fair Value of Amount Outstanding $ 234.0    
SemCAMS C$300 million senior secured construction loan facility [Member] | SemCAMS [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Fair Value of Amount Outstanding 79.0    
KAPS Facility [Member] | SemCAMS [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Fair Value of Amount Outstanding 233.0    
USAC Credit Facility, due 2023 [Member] | USAC [Member]      
Debt Instrument [Line Items]      
Long-term Line of Credit $ 1,000.0    
Line of Credit Facility, Interest Rate at Period End 4.13%    
Line of Credit Facility, Remaining Borrowing Capacity $ 361.0    
4.65% Senior Notes due February 2022      
Debt Instrument [Line Items]      
Senior Notes $ 300.0    
Debt Instrument, Interest Rate, Stated Percentage 4.65%    
Canada, Dollars | SemCAMS C$350 million senior secured term loan facility [Member] | SemCAMS [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Fair Value of Amount Outstanding $ 301.0    
Canada, Dollars | SemCAMS C$300 million senior secured construction loan facility [Member] | SemCAMS [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Fair Value of Amount Outstanding 102.0    
Canada, Dollars | KAPS Facility [Member] | SemCAMS [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Fair Value of Amount Outstanding $ 300.0