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Component: (Network and Table)
Network
101430 - Disclosure - Other Financial Statements Items - Schedule of Accounts Receivable (Detail)
(http://www.avangrid.com/20161231/taxonomy/role/DisclosureOtherFinancialStatementsItemsScheduleOfAccountsReceivableDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001634997 (http://www.sec.gov/CIK)
Receivables [Abstract]Period [Axis]
2016-12-31
2015-12-31
2014-12-31
2013-12-31
Receivables [Abstract]
 
 
 
 
Trade receivables
1,183,000,000  
1,036,000,000  
  
Allowance for bad debts
(64,000,000) 
(62,000,000) 
(49,000,000) 
(58,000,000) 
Total Accounts Receivable
1,119,000,000  
 
974,000,000