Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 4,639	$ 2,458
Adjustments to reconcile net income to net cash flows from operating activities:
Gains (losses) on marketable securities, net	(2,407)	296
Depreciation and amortization	2,357	2,278
Allowance for equity funds	(122)	(126)
Equity loss, net of distributions	146	43
Changes in regulatory assets and liabilities	(87)	108
Deferred income taxes and amortization of investment tax credits	791	(92)
Other, net	(6)	44
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(1,668)	(594)
Derivative collateral, net	53	(19)
Pension and other postretirement benefit plans	(69)	(40)
Accrued property, income and other taxes, net	97	195
Accounts payable and other liabilities	796	109
Net cash flows from operating activities	4,520	4,660
Cash flows from investing activities:
Capital expenditures	(4,607)	(4,898)
Acquisitions, net of cash acquired	0	(28)
Purchases of marketable securities	(322)	(242)
Proceeds from sales of marketable securities	308	223
Equity method investments	(2,062)	(1,144)
Other, net	50	54
Net cash flows from investing activities	(6,633)	(6,035)
Cash flows from financing activities:
Proceeds from BHE senior debt	3,231	0
Repayments of Unsecured Debt	(350)	0
Common stock purchases	(126)	(293)
Proceeds from subsidiary debt	2,648	3,463
Repayments of subsidiary debt	(1,558)	(1,821)
Net (repayments of) proceeds from short-term debt	(815)	594
Business acquisition, acquisition of remaining noncontrolling interest	(33)	0
Other, net	(60)	(42)
Net cash flows from financing activities	2,937	1,901
Effect of exchange rate changes	4	(3)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	828	523
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Start	1,268	883
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, End of Period	$ 2,096	$ 1,406