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Basis of Presentation Basis of Presentation (Tables)
 3 Months Ended
Mar. 31, 2019
Accounting Changes and Error Corrections [Abstract]  
Schedule of Changes for Adoption of New Accounting Pronouncements [Table Text Block]
The following table illustrates the adjustments made upon adoption of Topic 842 and the corresponding line items affected on the Company’s condensed consolidated balance sheets (in millions):

 
January 1, 2019 Topic 842 Adoption Adjustments
 
Increase due to existing operating and finance leases
 
Decrease due to build-to-suit reassessment
 
Decrease due to capital lease reassessment
 
Total
Increase/(Decrease)
Assets
 
 
 
 
 
 
 
Electric utility plant, net
$
2

 
$
(131
)
 
$
(49
)
 
$
(178
)
Other noncurrent assets
42

 
—

 
—

 
42

 
 
 
 
 
 
 
 
Liabilities
 
 
 
 
 
 
 
Accrued expenses and other current liabilities
5

 
—

 
(2
)
 
3

Other noncurrent liabilities
39

 
(131
)
 
(47
)
 
(139
)