Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 3,372	$ 3,144	$ 6,189
Adjustments to reconcile net income to net cash flows from operating activities:
(Gains) losses on marketable securities, net	(669)	2,002	(1,823)
Depreciation and amortization	4,220	4,286	3,881
Allowance for equity funds	(267)	(167)	(126)
Equity (income) loss, net of distributions	415	319	380
Net power cost deferrals	(629)	(1,290)	(520)
Amortization of net power cost deferrals	354	357	107
Other changes in regulatory assets and liabilities	(260)	(146)	(255)
Deferred income taxes and investment tax credits, net	(257)	(467)	646
Other, net	(46)	59	(57)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(134)	150	553
Derivative collateral, net	(226)	121	82
Pension and other postretirement benefit plans	(10)	(27)	(39)
Accrued property, income and other taxes, net	(58)	397	(489)
Accounts payable and other liabilities	280	579	163
Wildfires insurance receivable	(253)	(130)	0
Wildfires liability	1,300	172	0
Net cash flows from operating activities	7,132	9,359	8,692
Cash flows from investing activities:
Capital expenditures	(9,148)	(7,505)	(6,611)
Acquisitions, net of cash acquired	0	(314)	(122)
Purchases of marketable securities	(314)	(574)	(297)
Proceeds from sales of marketable securities	2,520	2,464	273
Equity method investments	(12)	119	(212)
Other, net	17	(28)	(94)
Net cash flows from investing activities	(5,899)	(7,750)	(5,763)
Cash flows from financing activities:
Preferred stock redemptions	(850)	(800)	(2,100)
Preferred dividends	(38)	(50)	(132)
Common stock purchases	0	(870)	0
Proceeds from BHE senior debt	0	986	0
Repayments of BHE senior debt	(900)	0	(450)
Proceeds from subsidiary debt	4,084	2,887	2,409
Repayments of subsidiary debt	(2,821)	(1,494)	(2,024)
Net proceeds from (repayments of) short-term debt	3,024	(867)	(276)
Purchase of Cove Point noncontrolling interest	(3,300)	0	0
Distributions to noncontrolling interests	(395)	(524)	(488)
Other, net	(54)	(274)	(70)
Net cash flows from financing activities	(1,250)	(1,006)	(3,131)
Effect of exchange rate changes	11	(30)	1
Net change in cash and cash equivalents and restricted cash and cash equivalents	(6)	573	(201)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,817	1,244	1,445
Cash and cash equivalents and restricted cash and cash equivalents at end of period	1,811	1,817	1,244
U.S. Treasury Bills
Cash flows from investing activities:
Purchases of U.S. Treasury Bills	(4,282)	(1,918)	0
Proceeds from sales of U.S. Treasury Bills	1,809	0	0
Proceeds from maturities of U.S. Treasury Bills	3,507	0	0
Other
Cash flows from investing activities:
Proceeds from other investments	$ 4	$ 6	$ 1,300