Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 3,144	$ 6,189	$ 7,014
Adjustments to reconcile net income to net cash flows from operating activities:
Losses (gains) on marketable securities, net	2,002	(1,823)	(4,797)
Depreciation and amortization	4,286	3,881	3,455
Allowance for equity funds	(167)	(126)	(165)
Equity loss, net of distributions	319	380	248
Net power cost deferrals	(1,290)	(520)	(62)
Amortization of net power cost deferrals	357	107	(5)
Other changes in regulatory assets and liabilities	(146)	(255)	(348)
Deferred income taxes and investment tax credits, net	(467)	646	1,880
Other, net	59	(57)	(23)
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	20	553	(1,318)
Derivative collateral, net	121	82	43
Pension and other postretirement benefit plans	(27)	(39)	(65)
Accrued property, income and other taxes, net	397	(489)	(134)
Accounts payable and other liabilities	751	163	501
Net cash flows from operating activities	9,359	8,692	6,224
Cash flows from investing activities:
Capital expenditures	(7,505)	(6,611)	(6,765)
Acquisitions, net of cash acquired	(314)	(122)	(2,397)
Purchases of marketable securities	(574)	(297)	(370)
Proceeds from sales of marketable securities	2,464	273	325
Purchases of other investments	(1,958)	(20)	(1,323)
Proceeds from other investments	6	1,300	13
Equity method investments	119	(212)	(2,724)
Other, net	12	(74)	76
Net cash flows from investing activities	(7,750)	(5,763)	(13,165)
Cash flows from financing activities:
Proceeds from issuance of preferred stock	0	0	3,750
Preferred stock redemptions	(800)	(2,100)	0
Preferred dividends	(50)	(132)	(7)
Common stock purchases	(870)	0	(126)
Proceeds from BHE senior debt	986	0	5,212
Repayments of BHE senior debt	0	(450)	(350)
Proceeds from subsidiary debt	2,887	2,409	2,688
Repayments of subsidiary debt	(1,494)	(2,024)	(2,841)
Net repayments of short-term debt	(867)	(276)	(939)
Distributions to noncontrolling interests	(524)	(488)	(122)
Other, net	(274)	(70)	(162)
Net cash flows from financing activities	(1,006)	(3,131)	7,103
Effect of exchange rate changes	(30)	1	15
Net change in cash and cash equivalents and restricted cash and cash equivalents	573	(201)	177
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	1,244	1,445	1,268
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 1,817	$ 1,244	$ 1,445