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CONSOLIDATED BALANCE SHEET (UNAUDITED) (Parenthetical) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
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Statement of Financial Position [Abstract] |  |
Accounts receivable - customers, allowance for uncollectible accounts | $ 336 | $ 317
Other receivables, allowance for uncollectible accounts | 9 | 22
Non-utility property, accumulated depreciation | 696 | 626
Intangible assets, accumulated amortization | $ 344 | $ 297

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