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Variable Interest Entities (Tables)
3 Months Ended
Mar. 31, 2018
Variable Interest Entity Disclosures [Abstract]  
Schedule of Variable Interest Entities [Table Text Block]
The following table presents amounts included in our Consolidated Balance Sheet that are for the use or obligation of our consolidated VIEs:
 
March 31,
2018
 
December 31,
2017
 
Classification
 
(Millions)
 
 
Assets (liabilities):
 
 
 
 
 
Cash and cash equivalents
$
54

 
$
35

 
Cash and cash equivalents
Accounts receivable
66

 
76

 
Trade accounts and other receivables
Prepaid assets
2

 
2

 
Other current assets and deferred charges
Property, plant, and equipment – net
2,852

 
2,887

 
Property, plant, and equipment – net
Intangible assets  net
1,369

 
1,381

 
Intangible assets – net of accumulated amortization
Accounts payable
(15
)
 
(28
)
 
Accounts payable – trade
Accrued liabilities
(1
)
 
(1
)
 
Other accrued liabilities
Current deferred revenue
(57
)
 
(57
)
 
Other accrued liabilities
Noncurrent asset retirement obligations
(105
)
 
(103
)
 
Asset retirement obligations
Noncurrent deferred revenue associated with customer advance payments
(293
)
 
(305
)
 
Regulatory liabilities, deferred income, and other