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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block]
Changes in the amounts of our goodwill for each of the years ended December 31, 2019 and 2018 are summarized by reporting unit as follows (in millions):  
 
Natural Gas Pipelines Regulated
 
Natural Gas Pipelines Non-Regulated
 
CO2
 
Products Pipelines
 
Products Pipelines Terminals
 
Terminals
 
Kinder
Morgan
Canada
 
Total
Gross goodwill
$
15,892

 
$
5,812

 
$
1,528

 
$
2,125

 
$
221

 
$
1,572

 
$
575

 
$
27,725

Accumulated impairment losses
(1,643
)
 
(1,597
)
 
—

 
(1,197
)
 
(70
)
 
(679
)
 
(377
)
 
(5,563
)
December 31, 2017
14,249

 
4,215

 
1,528

 
928

 
151

 
893

 
198

 
22,162

Currency translation
—

 
—

 
—

 
—

 
—

 
—

 
(8
)
 
(8
)
Divestitures(a)
—

 
—

 
—

 
—

 
—

 
—

 
(190
)
 
(190
)
Other
—

 
—

 
—

 
—

 
—

 
1

 
—

 
1

December 31, 2018
14,249

 
4,215

 
1,528

 
928

 
151

 
894

 
—

 
21,965

Divestitures(b)
—

 
(422
)
 
—

 
—

 
—

 
(92
)
 
—

 
(514
)
Transfer(c)
—

 
(450
)
 
—

 
450

 
—

 
—

 
—

 
—

Gross goodwill
15,892

 
4,940

 
1,528

 
2,575

 
221

 
1,481

 
—

 
26,637

Accumulated impairment losses
(1,643
)
 
(1,597
)
 
—

 
(1,197
)
 
(70
)
 
(679
)
 
—

 
(5,186
)
December 31, 2019
$
14,249

 
$
3,343

 
$
1,528

 
$
1,378

 
$
151

 
$
802

 
$
—

 
$
21,451

_______
(a)
2018 includes $190 million related to the TMPL Sale, including all of the accumulated impairment losses for our Kinder Morgan Canada reporting unit. See Note 3 for more information.
(b) 2019 includes $514 million related to the KML and U.S. Cochin Sale. See Note 3 for more information.
(c) Effective January 1, 2019, for segment reporting purposes, certain assets were transferred among our business segments which resulted in the transfer of goodwill from the Natural Gas Pipelines Non-Regulated reporting unit to the Products Pipelines reporting unit. See Note 16 for more information.