Equity (Issuance of Stock and Forward Sale Agreement) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Jun. 30, 2021	Dec. 31, 2020
NEP [Member]
Class of Stock [Line Items]
Senior unsecured convertible notes outstanding	$ 500	$ 500	$ 600

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details