CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS, UTILITY (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Financing Activities
Issuance costs for short-term debt	$ 0	$ 0	$ 1
Premium, discount, and issuance costs on proceeds from long-term debt	67	29	33
Performance based incentives earned	0	38	0
SB 901 Securitization
Cash Flows from Financing Activities
Financing fees	0	36	0
Series 2022-A Recovery Bonds
Cash Flows from Financing Activities
Financing fees	0	11	10
Pacific Gas & Electric Co (Utility)
Cash Flows from Financing Activities
Issuance costs for short-term debt	0	0	1
Premium, discount, and issuance costs on proceeds from long-term debt	67	29	33
Performance based incentives earned	0	38	0
Pacific Gas & Electric Co (Utility) | SB 901 Securitization
Cash Flows from Financing Activities
Financing fees		36	0
Pacific Gas & Electric Co (Utility) | Series 2022-A Recovery Bonds
Cash Flows from Financing Activities
Financing fees	$ 0	$ 11	$ 10