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Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts receivable - customers, allowance for uncollectible accounts | $ 75 | $ 70
Other receivables, allowance for uncollectible accounts | 5 | 4
Non-utility property, accumulated depreciation | 423 | 391
Intangible assets, accumulated amortization | 152 | 126
CECONY |  |
Accounts receivable - customers, allowance for uncollectible accounts | 70 | 65
Other receivables, allowance for uncollectible accounts | 3 | 3
Non-utility property, accumulated depreciation | $ 25 | $ 25

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