Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Accounts receivable - customers, allowance for uncollectible accounts	$ 66	$ 69
Other receivables, allowance for uncollectible accounts	9	14
Non-utility property, accumulated depreciation	155	140
Intangible assets, accumulated amortization	8	6
CECONY
Accounts receivable - customers, allowance for uncollectible accounts	62	65
Other receivables, allowance for uncollectible accounts	7	13
Non-utility property, accumulated depreciation	$ 25	$ 25