Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 673	$ 625
Adjustments to reconcile net income to net cash flows from operating activities:
Gains (losses) on marketable securities, net	27	(68)
Depreciation and amortization	821	733
Allowance for equity funds	(34)	(32)
Equity loss, net of distributions	29	26
Changes in regulatory assets and liabilities	0	(52)
Deferred income taxes and amortization of investment tax credits	47	(21)
Other, net	63	1
Changes in other operating assets and liabilities, net of effects from acquisitions:
Trade receivables and other assets	(118)	144
Derivative collateral, net	(19)	(3)
Pension and other postretirement benefit plans	(23)	(21)
Accrued property, income and other taxes, net	(364)	(48)
Accounts payable and other liabilities	117	68
Net cash flows from operating activities	1,165	1,488
Cash flows from investing activities:
Capital expenditures	(1,356)	(1,393)
Acquisitions, net of cash acquired	0	(26)
Purchases of marketable securities	188	159
Proceeds from sales of marketable securities	180	153
Equity method investments	(153)	(7)
Other, net	43	17
Net cash flows from investing activities	(1,474)	(1,415)
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	1,093	2,945
Repayments of subsidiary debt	(1,347)	(1,420)
Net repayments of short-term debt	(1,109)	(311)
Other, net	(34)	(21)
Net cash flows from financing activities	1,358	900
Effect of exchange rate changes	(13)	1
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	2,304	1,857
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	$ 1,036	$ 974