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Investing Activities (Tables)
12 Months Ended
Dec. 31, 2021
Investments [Abstract]  
Investments [Table Text Block]
 
Ownership Interest at December 31, 2021
December 31,
 20212020
 (Millions)
Equity method:
Appalachia Midstream Investments(1)$3,056 $3,087 
RMM50%401 421 
OPPL50%388 395 
Blue Racer50%377 357 
Discovery60%328 352 
Laurel Mountain69%226 219 
Gulfstream50%215 204 
OtherVarious130 124 
5,121 5,159 
Other— 
$5,127 $5,159 
___________
(1)Includes equity-method investments in multiple gathering systems in the Marcellus Shale with an approximate average 66 percent interest.
Contributions [Table Text Block]
Purchases of and contributions to equity-method investments
We generally fund our portion of significant expansion or development projects of these investees through additional capital contributions. These transactions increased the carrying value of our investments and included:
Year Ended December 31,
 202120202019
 (Millions)
Appalachia Midstream Investments$84 $116 $140 
Gulfstream26 
Blue Racer (1)157 28 
Laurel Mountain36 
Targa Train 7— 43 
RMM— — 145 
Brazos Permian II— — 18 
Other— 38 40 
$115 $325 $453 
___________
(1)See previous discussion in the section Acquisition of additional interests in BRMH above.
Dividends and distributions [Table Text Block]
Dividends and distributions
The organizational documents of entities in which we have an equity-method investment generally require distribution of available cash to members on at least a quarterly basis. These transactions reduced the carrying value of our investments and included:
Year Ended December 31,
202120202019
 (Millions)
Appalachia Midstream Investments$433 $357 $293 
Gulfstream90 93 86 
Blue Racer (1)47 47 42 
RMM45 39 38 
Discovery44 21 41 
Laurel Mountain33 31 30 
OPPL26 50 77 
Other39 15 50 
$757 $653 $657 
___________
(1)See previous discussion in the section Acquisition of additional interests in BRMH above.
Realized Gain (Loss) on Investments [Table Text Block]
The following table presents certain items reflected in Other investing income (loss) – net in the Consolidated Statement of Income:
Year Ended December 31,
202120202019
(Millions)
Gain (loss) on deconsolidation of businesses$— $— $(29)
Gain on disposition of Jackalope— — 122 
Other14 
Other investing income (loss) net
$$$107 
Summarized Financial Position and Results of Operations of Equity Method Investments [Table Text Block]
Summarized Financial Position and Results of Operations of All Equity-Method Investments
 December 31,
 20212020
 (Millions)
Assets (liabilities):
Current assets
$743 $630 
Noncurrent assets
13,211 13,424 
Current liabilities
(435)(312)
Noncurrent liabilities
(3,774)(3,884)
 Year Ended December 31,
 202120202019
 (Millions)
Gross revenue$4,688 $2,625 $2,490 
Operating income1,191 508 685 
Net income1,006 459 598