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Asset Impairments (Tables)
 12 Months Ended
Dec. 31, 2016
Asset Impairment Charges [Abstract]  
Components of Asset Impairments

The following table presents the asset impairments recognized in 2016, 2015 and 2014.

 

 

 

Year Ended December 31,

 

 

 

2016

 

 

2015

 

 

2014

 

 

 

(Millions)

 

U.S. oil and gas assets

 

$

2,809

 

 

$

17,992

 

 

$

—

 

Canada oil and gas assets

 

 

1,291

 

 

 

1,257

 

 

 

—

 

Canada goodwill

 

 

—

 

 

 

—

 

 

 

1,941

 

EnLink goodwill

 

 

873

 

 

 

1,328

 

 

 

—

 

EnLink other intangible assets

 

 

—

 

 

 

223

 

 

 

—

 

Other assets

 

 

2

 

 

 

20

 

 

 

12

 

Total asset impairments

 

$

4,975

 

 

$

20,820

 

 

$

1,953