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Schedule I - Condensed Financial Information of Parent (Exelon Corporate) - Debt and Credit Agreements - Schedule of Debt Maturities (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Debt Instrument [Line Items]  
2023 $ 1,802
2024 1,317
2025 1,414
2026 1,613
2027 1,021
Thereafter 30,002
Total 37,169
Corporate, Non-Segment [Member]  
Debt Instrument [Line Items]  
2023 850
2024 500
2025 807
2026 750
2027 650
Thereafter 5,932
Total $ 9,489