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Reportable Segments (Tables)
12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
Financial information by segment follows: 
Year Ended December 31,
202320222021
(In millions)
Revenues   
Natural Gas Pipelines   
Revenues from external customers$9,152 $12,659 $11,644 
Intersegment revenues16 27 65 
Products Pipelines3,066 3,418 2,245 
Terminals 
Revenues from external customers1,911 1,789 1,712 
Intersegment revenues
CO2
Revenues from external customers1,205 1,334 1,009 
Intersegment revenues— — 
Corporate and intersegment eliminations(26)(30)(68)
Total consolidated revenues$15,334 $19,200 $16,610 
 Year Ended December 31,
202320222021
(In millions)
Operating expenses(a)   
Natural Gas Pipelines$4,700 $8,562 $7,000 
Products Pipelines2,024 2,391 1,239 
Terminals896 853 793 
CO2
550 554 289 
Corporate and intersegment eliminations(4)(9)(34)
Total consolidated operating expenses$8,166 $12,351 $9,287 
 Year Ended December 31,
 202320222021
(In millions)
Other expense (income)(b)   
Natural Gas Pipelines$(12)$(13)$1,597 
Products Pipelines(12)— 
Terminals(2)(14)32 
CO2
— (1)(8)
Corporate(3)(4)
Total consolidated other expense (income)$(13)$(39)$1,617 
 Year Ended December 31,
 202320222021
(In millions)
DD&A   
Natural Gas Pipelines$1,041 $1,096 $1,099 
Products Pipelines367 336 335 
Terminals493 458 440 
CO2
325 272 236 
Corporate24 24 25 
Total consolidated DD&A$2,250 $2,186 $2,135 
 Year Ended December 31,
 202320222021
(In millions)
Earnings from equity investments and amortization of excess cost of equity investments   
Natural Gas Pipelines$746 $650 $435 
Products Pipelines(6)33 34 
Terminals14 15 
CO2
23 31 29 
Total consolidated equity earnings$772 $728 $513 
 Year Ended December 31,
 202320222021
(In millions)
Other, net-income (expense)   
Natural Gas Pipelines$26 $(19)$216 
Products Pipelines— 
Terminals
Corporate(72)66 62 
Total consolidated other, net-income (expense)$(37)$55 $282 
 Year Ended December 31,
 202320222021
(In millions)
Segment EBDA(c)   
Natural Gas Pipelines$5,282 $4,801 $3,815 
Products Pipelines1,062 1,107 1,064 
Terminals1,040 975 908 
CO2
689 819 760 
Total Segment EBDA8,073 7,702 6,547 
DD&A(2,250)(2,186)(2,135)
Amortization of excess cost of equity investments(66)(75)(78)
General and administrative and corporate charges(759)(593)(623)
Interest, net(1,797)(1,513)(1,492)
Income tax expense(715)(710)(369)
Total consolidated net income$2,486 $2,625 $1,850 
 Year Ended December 31,
 202320222021
(In millions)
Capital expenditures   
Natural Gas Pipelines$1,299 $666 $570 
Products Pipelines221 — 122 
Terminals406 552 332 
CO2
355 371 230 
Corporate36 32 27 
Total consolidated capital expenditures$2,317 $1,621 $1,281 

December 31,
 20232022
(In millions)
Investments  
Natural Gas Pipelines$7,273 $6,993 
Products Pipelines390 445 
Terminals130 128 
CO2
81 87 
Total consolidated investments               $7,874 $7,653 

December 31,
 20232022
(In millions)
Other intangibles, net  
Natural Gas Pipelines$742 $439 
Products Pipelines687 777 
Terminals26 38 
CO2
502 555 
Total consolidated other intangibles, net              $1,957 $1,809 
December 31,
 20232022
(In millions)
Assets  
Natural Gas Pipelines$49,883 $47,978 
Products Pipelines8,781 8,985 
Terminals8,235 8,357 
CO2
3,497 3,449 
Corporate assets(d)624 1,309 
Total consolidated assets                                                                       $71,020 $70,078 
(a)Includes costs of sales, operations and maintenance expenses, and taxes, other than income taxes.
(b)Includes (gain) loss on divestitures and impairments, net and other (expense) income, net.
(c)Includes revenues, earnings from equity investments, and other, net, less operating expenses, (gain) loss on divestitures and impairments, net and other (expense) income, net.
(d)Includes cash and cash equivalents, restricted deposits, certain prepaid assets and deferred charges, risk management assets related to derivative contracts, corporate headquarters in Houston, Texas and miscellaneous corporate assets (such as information technology, telecommunications equipment and legacy activity) not allocated to our reportable segments.
Schedule of Revenue and Long-lived Assets from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
Following is geographic information regarding the revenues and long-lived assets of our business:
 Year Ended December 31,
 202320222021
(In millions)
Revenues from external customers   
U.S.$15,255 $19,036 $16,479 
Mexico and other foreign79 164 131 
Total consolidated revenues from external customers$15,334 $19,200 $16,610 
December 31,
 202320222021
(In millions)
Long-term assets, excluding goodwill and other intangibles  
U.S.$46,328 $44,425 $44,916 
Mexico and other foreign72 75 78 
Canada— 
Total consolidated long-lived assets$46,400 $44,501 $44,995