Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flow from Operating Activities:
Net Income	$ 387	$ 460
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	748	681
Regulatory assets/liabilities amortization and carrying cost	63	51
Pension cost	60	68
Earnings (losses) from equity method investments	3	(1)
Distributions of earnings received from equity method investments	15	10
Unrealized gain on marked-to-market derivative contracts	(9)	(66)
Deferred taxes	11	99
Other non-cash items	(35)	(35)
Changes in operating assets and liabilities:
Current assets	7	188
Noncurrent assets	(152)	(24)
Current liabilities	24	(73)
Noncurrent liabilities	(30)	(114)
Net Cash Provided by Operating Activities	1,092	1,244
Cash Flow from Investing Activities:
Capital expenditures	(1,960)	(2,045)
Contributions in aid of construction	35	36
Proceeds from sale of assets	12	13
Proceeds from notes receivable from affiliates	2	0
Distributions received from equity method investments	3	4
Other investments and equity method investments, net	(48)	(164)
Net Cash Used in Investing Activities	(1,956)	(2,156)
Cash Flow from Financing Activities:
Non-current debt issuances	967	1,637
Repayments of non-current debt	(511)	(344)
Receipts of other short-term debt, net	441	32
Repayments of financing leases	(7)	(26)
Repurchase of common stock	(2)	0
Issuance of common stock	(1)	0
Distributions to noncontrolling interests	(5)	(47)
Contributions from noncontrolling interests	312	133
Dividends paid	(408)	(408)
Net Cash Provided by Financing Activities	786	977
Net (Decrease) Increase in Cash, Cash Equivalents and Restricted Cash	(78)	65
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	184	43
Cash, Cash Equivalents and Restricted Cash, End of Period	106	108
Supplemental Cash Flow Information
Cash paid for interest, net of amounts capitalized	206	183
Cash paid for income taxes	$ 4	$ 4