Condensed Consolidated Statements of Cash Flows - Duke Energy Progress - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income Attributable to Duke Energy Corporation		$ 3,186	$ 3,162
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)		4,414	4,189
Equity component of AFUDC		(151)	(126)
Impairment of assets and other charges		202	342
Deferred income taxes		209	206
Contributions to qualified pension plans		(58)
Payments for asset retirement obligations		(418)	(389)
Provision for rate refunds		(97)	(41)
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions		33	116
Receivables		(356)	(167)
Inventory		(290)	268
Other current assets(a)	[1]	(2,403)	(643)
Increase (decrease) in
Accounts payable		504	(146)
Taxes accrued		206	431
Other current liabilities		263	10
Other assets		(84)	199
Other liabilities		188	77
Net cash provided by operating activities		5,188	7,227
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures		(8,148)	(7,089)
Purchases of debt and equity securities		(3,619)	(4,292)
Proceeds from sales and maturities of debt and equity securities		3,691	4,335
Other		(517)	(269)
Net cash used in investing activities		(8,630)	(8,200)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt		9,466	6,379
Payments for the redemption of long-term debt		(3,803)	(3,696)
Other		(124)	(21)
Net cash provided by financing activities		3,551	1,160
Net increase in cash, cash equivalents and restricted cash		109	187
Cash, cash equivalents and restricted cash at beginning of period		520	556
Cash, cash equivalents and restricted cash at end of period		629	743
Significant non-cash transactions:
Accrued capital expenditures		1,387	998
Duke Energy Progress
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income Attributable to Duke Energy Corporation		831	800
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)		1,034	951
Equity component of AFUDC		(37)	(25)
Impairment of assets and other charges		4	60
Deferred income taxes		66	22
Contributions to qualified pension plans		(8)
Payments for asset retirement obligations		(133)	(129)
Provision for rate refunds		(44)	(22)
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions			108
Receivables		(95)	(66)
Receivables from affiliated companies		64	(18)
Inventory		(58)	95
Other current assets(a)		(266)	(79)
Increase (decrease) in
Accounts payable		7	20
Accounts payable to affiliated companies		58	(102)
Taxes accrued		(1)	75
Other current liabilities		122	(36)
Other assets		(105)	48
Other liabilities		39	(32)
Net cash provided by operating activities		1,478	1,670
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures		(1,506)	(1,313)
Purchases of debt and equity securities		(1,148)	(1,306)
Proceeds from sales and maturities of debt and equity securities		1,141	1,291
Notes receivable from affiliated companies		329
Other		(11)	(36)
Net cash used in investing activities		(1,853)	(1,364)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt		1,448	1,190
Payments for the redemption of long-term debt		(612)	(605)
Notes receivable from affiliated companies		(172)	(178)
Distributions to parent		(250)	(700)
Other		(1)	(1)
Net cash provided by financing activities		413	(294)
Net increase in cash, cash equivalents and restricted cash		38	12
Cash, cash equivalents and restricted cash at beginning of period		39	39
Cash, cash equivalents and restricted cash at end of period		77	51
Significant non-cash transactions:
Accrued capital expenditures		184	82
Progress Energy
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income Attributable to Duke Energy Corporation		1,498	1,333
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)		1,826	1,707
Equity component of AFUDC		(50)	(37)
Impairment of assets and other charges		4	79
Deferred income taxes		284	235
Contributions to qualified pension plans		(13)
Payments for asset retirement obligations		(207)	(206)
Provision for rate refunds		(44)	(22)
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions			117
Receivables		(314)	(123)
Receivables from affiliated companies		110	96
Inventory		(154)	120
Other current assets(a)	[2]	(1,133)	(347)
Increase (decrease) in
Accounts payable		360	79
Accounts payable to affiliated companies		(31)	(68)
Taxes accrued		173	161
Other current liabilities		216	(36)
Other assets		(262)	(3)
Other liabilities		615	(139)
Net cash provided by operating activities		2,879	2,947
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures		(3,130)	(2,628)
Purchases of debt and equity securities		(1,301)	(1,583)
Proceeds from sales and maturities of debt and equity securities		1,357	1,649
Notes receivable from affiliated companies		(232)
Other		(88)	(131)
Net cash used in investing activities		(3,394)	(2,693)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt		1,452	1,190
Payments for the redemption of long-term debt		(1,136)	(977)
Notes receivable from affiliated companies		509	154
Other		(36)	(2)
Net cash provided by financing activities		539	(335)
Net increase in cash, cash equivalents and restricted cash		24	(81)
Cash, cash equivalents and restricted cash at beginning of period		113	200
Cash, cash equivalents and restricted cash at end of period		137	119
Significant non-cash transactions:
Accrued capital expenditures		$ 472	$ 290

[1] Includes approximately $2.2 billion of under-collected deferred fuel regulatory assets for the nine months ended September 30, 2022

[2] Includes approximately $1 billion of under-collected deferred fuel regulatory assets for the nine months ended September 30, 2022