Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Accounts receivable - customers, allowance for uncollectible accounts	$ 62	$ 63
Other receivables, allowance for uncollectible accounts	6	8
Non-utility property, accumulated depreciation	248	201
Intangible assets, accumulated amortization	21	15
CECONY
Accounts receivable - customers, allowance for uncollectible accounts	57	58
Other receivables, allowance for uncollectible accounts	5	7
Non-utility property, accumulated depreciation	$ 25	$ 25