STATEMENTS OF CONSOLIDATED CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income	$ 5,615	$ 4,755	$ 3,886
Reconciliation of net income to net cash flows provided by operating activities:
Depreciation and accretion	1,797	1,723	1,697
Amortization of intangible assets	177	151	143
Amortization of major maintenance costs for reaction-based plants	51	27	0
Other amortization expense	220	239	232
Impairment of goodwill	0	0	296
Impairment of assets other than goodwill	53	233	594
Equity in income of unconsolidated affiliates	(464)	(583)	(426)
Distributions received from unconsolidated affiliates attributable to earnings	446	544	427
Net losses (gains) attributable to asset sales and related matters	1	5	(4)
Deferred income tax expense (benefit)	60	40	(148)
Change in fair market value of derivative instruments	78	(27)	(79)
Non-cash expense related to long-term operating leases	59	41	39
Net effect of changes in operating accounts	(54)	1,366	(768)
Other operating activities	0	(1)	2
Net cash flows provided by operating activities	8,039	8,513	5,891
Investing activities:
Capital expenditures	(1,964)	(2,223)	(3,288)
Cash used for business combinations, net of cash received	(3,204)	0	0
Investments in unconsolidated affiliates	(1)	(2)	(16)
Distributions received from unconsolidated affiliates attributable to the return of capital	98	46	188
Proceeds from asset sales and other matters	122	64	13
Other investing activities	(5)	(20)	(18)
Cash used in investing activities	(4,954)	(2,135)	(3,121)
Financing activities:
Borrowings under debt agreements	96,140	11,159	6,672
Repayments of debt	(97,395)	(11,492)	(4,407)
Debt issuance costs	(1)	(15)	(46)
Monetization of interest rate derivative instruments	0	75	(33)
Cash distributions paid to common unitholders	(4,095)	(3,930)	(3,891)
Cash payments made in connection with distribution equivalent rights	(34)	(31)	(27)
Cash distributions paid to noncontrolling interests	(163)	(154)	(131)
Cash contributions from noncontrolling interests	7	72	31
Repurchase of common units under 2019 Buyback Program	(250)	(214)	(186)
Net cash proceeds from the issuance of preferred units	0	0	32
Other financing activities	(53)	(41)	(36)
Cash used in financing activities	(5,844)	(4,571)	(2,022)
Net change in cash and cash equivalents, including restricted cash	(2,759)	1,807	748
Cash and cash equivalents, including restricted cash, at beginning of period	2,965	1,158	410
Cash and cash equivalents, including restricted cash, at end of period	$ 206	$ 2,965	$ 1,158