Magellan Midstream Partners (MMP) 10-Q 27 Oct 22 2022 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2022	Oct. 26, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	1-16335
Entity Registrant Name	Magellan Midstream Partners, L.P.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	73-1599053
Entity Address, Address Line One	One Williams Center
Entity Address, Address Line Two	P.O. Box 22186
Entity Address, City or Town	Tulsa
Entity Address, State or Province	OK
Entity Address, Postal Zip Code	74121-2186
City Area Code	918
Local Phone Number	574-7000
Title of 12(b) Security	Common Units
Trading Symbol	MMP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		204,936,077
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001126975
Current Fiscal Year End Date	--12-31

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Total revenue	$ 876.1	$ 639.1	$ 2,339.4	$ 1,923.8
Costs and expenses:
Operating	138.2	146.5	442.5	422.9
Cost of product sales	268.6	145.9	794.3	488.6
Depreciation, amortization and impairment	57.9	61.5	174.4	168.4
General and administrative	58	46.5	177.7	148.6
Total costs and expenses	522.7	400.4	1,588.9	1,228.5
Other operating income (expense)	1.2	2.6	2.2	4.1
Earnings of non-controlled entities	41.8	36.4	103.7	116.1
Operating profit	396.4	277.7	856.4	815.5
Interest expense	57.3	56.9	172.4	171
Interest capitalized	(0.5)	(0.2)	(1.2)	(1.2)
Interest income	(0.3)	(0.1)	(0.6)	(0.4)
Gain on disposition of assets	(0.1)	(3.2)	(0.3)	(72.9)
Other (income) expense	10.7	2.2	11.9	18.1
Income from continuing operations before provision for income taxes	329.3	222.1	674.2	700.9
Provision for income taxes	0.9	0.8	2	2
Income from continuing operations	328.4	221.3	672.2	698.9
Income from discontinued operations (including gain on disposition of assets of $164.0 million in 2022)	1.6	15.3	177.2	39.4
Net income	$ 330	$ 236.6	$ 849.4	$ 738.3
Earnings per common unit
Basic income from continuing operations per common unit (in dollars per share)	$ 1.58	$ 1.01	$ 3.19	$ 3.15
Basic income from discontinued operations per common unit (in dollars per share)	0.01	0.07	0.84	0.18
Basic net income per common unit (in dollars per share)	$ 1.59	$ 1.08	$ 4.03	$ 3.33
Weighted average number of common units outstanding used for basic net income per unit calculation (in shares)	207.5	218.6	210.7	221.6
Diluted income from continuing operations per common unit (in dollars per share)	$ 1.58	$ 1.01	$ 3.19	$ 3.15
Diluted income from discontinued operations per common unit (in dollars per share)	0.01	0.07	0.84	0.18
Diluted net income per common unit (in dollars per share)	$ 1.59	$ 1.08	$ 4.03	$ 3.33
Weighted average number of common units outstanding used for diluted net income per unit calculation (in shares)	207.6	218.8	210.7	221.7
Transportation and terminals revenue
Total revenue	$ 482.5	$ 464.9	$ 1,374.7	$ 1,332.3
Product sales revenue
Total revenue	388.2	168.9	948	575.6
Affiliate management fee revenue
Total revenue	$ 5.4	$ 5.3	$ 16.7	$ 15.9

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 330	$ 236.6	$ 849.4	$ 738.3
Other comprehensive income:
Reclassification of net loss on cash flow hedges to income	0.9	0.9	2.7	2.7
Net actuarial gain	5.1	0	6.2	10.8
Recognition of prior service credit amortization in income	0	0	(0.1)	(0.1)
Recognition of actuarial loss amortization in income	1.1	1.4	3.5	4.5
Recognition of settlement cost in income	1.5	1.3	1.5	2.8
Total other comprehensive income	8.6	3.6	13.8	20.7
Comprehensive income	$ 338.6	$ 240.2	$ 863.2	$ 759

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 8.1	$ 2
Trade accounts receivable	179.1	135.2
Other accounts receivable	44.3	34.6
Inventory	348.8	281.1
Commodity derivatives contracts, net	56.9	1.4
Commodity derivatives deposits	0.4	46.3
Assets held for sale	9.9	299.5
Other current assets	70.1	43.1
Total current assets	717.6	843.2
Property, plant and equipment	8,136.7	8,045.9
Less: accumulated depreciation	2,284.8	2,141.2
Net property, plant and equipment	5,851.9	5,904.7
Investments in non-controlled entities	961.9	980.8
Right-of-use asset, operating leases	155.7	174.2
Long-term receivables	8.8	10.1
Goodwill	50.4	50.1
Other intangibles (less accumulated amortization of $11.9 and $14.0 at December 31, 2021 and September 30, 2022, respectively)	41.7	43.2
Restricted cash	5.8	7
Other noncurrent assets	20.5	16.7
Total assets	7,814.3	8,030
Current liabilities:
Accounts payable	134.4	109.5
Accrued payroll and benefits	67.7	74.9
Accrued interest payable	50	59
Accrued taxes other than income	81.1	76.5
Deferred revenue	102.2	92.5
Accrued product liabilities	179.4	153.5
Commodity derivatives contracts, net	22.9	18.6
Commodity derivatives deposits	12.9	0
Current portion of operating lease liability	30.8	25.8
Liabilities held for sale	0	15.8
Other current liabilities	35.4	53.5
Total current liabilities	716.8	679.6
Long-term debt, net	5,011.4	5,088.8
Long-term operating lease liability	121.3	147.3
Long-term pension and benefits	129.7	145
Other noncurrent liabilities	84.2	69.5
Commitments and contingencies
Partners’ capital:
Common unitholders (212.4 units and 204.9 units outstanding at December 31, 2021 and September 30, 2022, respectively)	1,892.1	2,054.8
Accumulated other comprehensive loss	(141.2)	(155)
Total partners’ capital	1,750.9	1,899.8
Total liabilities and partners’ capital	$ 7,814.3	$ 8,030

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Finite-lived intangible assets, accumulated amortization	$ 14	$ 11.9
Limited partner unitholders, units outstanding (in shares)	204,936,077	212,387,990

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating Activities:
Net income	$ 849,400	$ 738,300
Adjustments to reconcile net income to net cash provided by operating activities:
Income from discontinued operations	(177,200)	(39,400)
Depreciation, amortization and impairment expense	174,400	168,400
Gain on disposition of assets	(300)	(72,900)
Earnings of non-controlled entities	(103,700)	(116,100)
Distributions from operations of non-controlled entities	122,000	140,600
Equity-based incentive compensation expense	28,800	15,700
Settlement cost, amortization of prior service credit and actuarial loss	4,900	7,200
Changes in operating assets and liabilities:
Trade accounts receivable and other accounts receivable	(53,600)	(24,200)
Inventory	(67,700)	(64,400)
Accounts payable	5,000	23,400
Accrued payroll and benefits	(7,200)	11,200
Accrued product liabilities	25,900	41,900
Other current and noncurrent assets and liabilities	(35,400)	11,200
Net cash provided by operating activities of continuing operations	765,300	840,900
Net cash provided by operating activities of discontinued operations	23,500	38,200
Net cash provided by operating activities	788,800	879,100
Investing Activities:
Additions to property, plant and equipment, net	(129,600)	(106,500)
Proceeds from sale and disposition of assets	300	272,000
Investments in non-controlled entities	(900)	(5,600)
Distributions from returns of investments in non-controlled entities	1,900	0
Net cash provided (used) by investing activities of continuing operations	(128,300)	159,900
Net cash provided by investing activities of discontinued operations	448,400	200
Net cash provided by investing activities	320,100	160,100
Financing Activities:
Distributions paid	(655,300)	(685,000)
Repurchases of common units, net	(360,800)	(473,000)
Net commercial paper borrowings (payments)	(79,000)	123,000
Payments associated with settlement of equity-based incentive compensation	(8,900)	(6,200)
Net cash used by financing activities	(1,104,000)	(1,041,200)
Change in cash, cash equivalents and restricted cash	4,900	(2,000)
Cash, cash equivalents and restricted cash at beginning of period	9,000	22,400
Cash, cash equivalents and restricted cash at end of period	13,900	20,400
Supplemental non-cash investing and financing activities:
Additions to property, plant and equipment	(130,200)	(110,500)
Changes in accounts payable and other current liabilities related to capital expenditures	600	4,000
Additions to property, plant and equipment, net	(129,600)	(106,500)
Repurchases of common units	(377,200)	(473,000)
Changes in accounts payable related to repurchases of common units	16,400	0
Repurchases of common units, net	$ (360,800)	$ (473,000)

Consolidated Statements of Part

Consolidated Statements of Partners' Capital - USD ($) $ in Millions	Total	Common Unitholders	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2020	$ 2,303.8	$ 2,487	$ (183.2)
Comprehensive income:
Net income	738.3	738.3
Total other comprehensive income	20.7		20.7
Total comprehensive income	759	738.3	20.7
Distributions	(685)	(685)
Repurchases of common units	(473)	(473)
Equity-based incentive compensation expense	15.7	15.7
Issuance of common units in settlement of equity-based incentive plan awards	0.5	0.5
Payments associated with settlement of equity-based incentive compensation	(6.2)	(6.2)
Other	(0.8)	(0.8)
Ending balance at Sep. 30, 2021	1,914	2,076.5	(162.5)
Beginning balance at Jun. 30, 2021	2,285.8	2,451.9	(166.1)
Comprehensive income:
Net income	236.6	236.6
Total other comprehensive income	3.6		3.6
Total comprehensive income	240.2	236.6	3.6
Distributions	(226.6)	(226.6)
Repurchases of common units	(390.7)	(390.7)
Equity-based incentive compensation expense	5.6	5.6
Other	(0.3)	(0.3)
Ending balance at Sep. 30, 2021	1,914	2,076.5	(162.5)
Beginning balance at Dec. 31, 2021	1,899.8	2,054.8	(155)
Comprehensive income:
Net income	849.4	849.4
Total other comprehensive income	13.8		13.8
Total comprehensive income	863.2	849.4	13.8
Distributions	(655.3)	(655.3)
Repurchases of common units	(377.2)	(377.2)
Equity-based incentive compensation expense	28.8	28.8
Issuance of common units in settlement of equity-based incentive plan awards	1.1	1.1
Payments associated with settlement of equity-based incentive compensation	(8.9)	(8.9)
Other	(0.6)	(0.6)
Ending balance at Sep. 30, 2022	1,750.9	1,892.1	(141.2)
Beginning balance at Jun. 30, 2022	1,759.4	1,909.2	(149.8)
Comprehensive income:
Net income	330	330
Total other comprehensive income	8.6		8.6
Total comprehensive income	338.6	330	8.6
Distributions	(215.2)	(215.2)
Repurchases of common units	(137.6)	(137.6)
Equity-based incentive compensation expense	5.9	5.9
Other	(0.2)	(0.2)
Ending balance at Sep. 30, 2022	$ 1,750.9	$ 1,892.1	$ (141.2)

Consolidated Statements Of In_2

Consolidated Statements Of Income (Parenthetical) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)
Income Statement [Abstract]
Gain on disposition of assets	$ 164

Organization, Description of Bu

Organization, Description of Business and Basis Of Presentation	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Description of Business and Basis of Presentation	Organization, Description of Business and Basis of Presentation Organization Unless indicated otherwise, the terms “our,” “we,” “us” and similar language refer to Magellan Midstream Partners, L.P. together with its subsidiaries. Magellan Midstream Partners, L.P. is a Delaware limited partnership, and our common units are traded on the New York Stock Exchange under the ticker symbol “MMP.” Magellan GP, LLC, a wholly owned Delaware limited liability company, serves as our general partner. The board of directors of our general partner is referred to herein as our “board.” Description of Business We are principally engaged in the transportation, storage and distribution of refined petroleum products and crude oil. As of September 30, 2022, our asset portfolio consisted of: • our refined products segment, comprised of our approximately 9,800-mile refined petroleum products pipeline system with 54 terminals and two marine storage terminals (one of which is owned through a joint venture); and • our crude oil segment, comprised of approximately 2,200 miles of crude oil pipelines, a condensate splitter and 39 million barrels of aggregate storage capacity, of which approximately 29 million barrels are used for contract storage. Approximately 1,000 miles of these pipelines, the condensate splitter and 31 million barrels of this storage capacity (including 25 million barrels used for contract storage) are wholly-owned, with the remainder owned through joint ventures. The following terms are commonly used in our industry to describe products that we transport, store, distribute or otherwise handle through our petroleum pipelines and terminals: • refined products are the output from crude oil refineries that are primarily used as fuels by consumers. Refined products include gasoline, diesel fuel, aviation fuel, kerosene and heating oil. Diesel fuel, kerosene and heating oil are also referred to as distillates; • transmix is a mixture that forms when different refined products are transported in pipelines. Transmix is fractionated and blended into usable refined products; • LPGs are liquids produced as by-products of the crude oil refining process and in connection with natural gas production. LPGs include gas liquids such as butane, natural gasoline and propane; • blendstocks are products blended with refined products to change or enhance their characteristics such as increasing a gasoline’s octane or oxygen content. Blendstocks include alkylates and oxygenates; and • crude oil, which includes condensate, is a naturally occurring unrefined petroleum product recovered from underground that is used as feedstock by refineries, splitters and petrochemical facilities. We use the term petroleum products to describe any, or a combination, of the above-noted products. In addition, we handle, store and distribute renewable fuels, such as ethanol and biodiesel. Basis of Presentation In the opinion of management, our accompanying consolidated financial statements which are unaudited, except for the consolidated balance sheet as of December 31, 2021, which is derived from our audited financial statements, include all normal and recurring adjustments necessary to present fairly our financial position as of September 30, 2022, the results of operations for the three and nine months ended September 30, 2021 and 2022 and cash flows for the nine months ended September 30, 2021 and 2022. The results of operations for the nine months ended September 30, 2022 are not necessarily indicative of the results to be expected for the full year ending December 31, 2022 for several reasons. Profits from our gas liquids blending activities are realized largely during the first and fourth quarters of each year. Additionally, gasoline demand, which drives transportation volumes and revenues on our refined products pipeline system, generally trends higher during the summer driving months. Further, the volatility of commodity prices impacts the profits from our commodity activities and the volume of petroleum products we transport on our pipelines. Pursuant to the rules and regulations of the Securities and Exchange Commission, the financial statements in this report have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2021. Discontinued Operations On June 8, 2022, we completed the sale of the independent terminals network comprised of 26 refined petroleum products terminals in the southeastern U.S. to Buckeye Partners, L.P. (“Buckeye”) for $446.2 million, including final working capital adjustments. The related results of operations, financial position and cash flows have been classified as discontinued operations for all periods presented (see Note 2 – Discontinued Operations for additional details). Unless indicated otherwise, the information in the Notes to Consolidated Financial Statements relates to continuing operations. Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities that exist at the date of our consolidated financial statements, as well as their impact on the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. New Accounting Pronouncements We evaluate new Accounting Standards Codifications (“ASC”) and updates issued by the Financial Accounting Standards Board on an ongoing basis. There are no new accounting pronouncements that we anticipate will have a material impact on our financial statements.

Discontinued Operations

Discontinued Operations	9 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations Summarized Results of Discontinued Operations The following table provides the summarized results that have been presented as discontinued operations on the consolidated statements of income (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2021 2022 2021 2022 Transportation and terminals revenue $ 13.2 $ — $ 40.0 $ 21.1 Product sales revenue 14.5 — 59.1 30.0 Total revenue 27.7 — 99.1 51.1 Costs and expenses: Operating 2.9 — 10.1 8.0 Cost of product sales 8.8 — 40.6 28.8 Depreciation, amortization and impairment 0.1 — 7.1 — General and administrative 0.6 — 1.9 1.1 Total costs and expenses 12.4 — 59.7 37.9 Gain on disposition of assets — (1.6) — (164.0) Income from discontinued operations $ 15.3 $ 1.6 $ 39.4 $ 177.2 Summarized Assets and Liabilities of Discontinued Operations The following table provides the summarized assets and liabilities that were classified as held for sale on the consolidated balance sheet as of December 31, 2021 (in millions). Subsequent to the sale of the independent terminals network on June 8, 2022, no assets or liabilities were classified as held for sale in relation to discontinued operations. December 31, 2021 Assets: Trade accounts receivable $ 6.3 Inventory 17.0 Net property, plant and equipment 272.0 Goodwill 2.7 Other assets 1.5 Total assets classified as held for sale $ 299.5 Liabilities: Accounts payable $ 3.7 Accrued product liabilities 8.4 Other liabilities 3.7 Total liabilities classified as held for sale $ 15.8

Segment Disclosures

Segment Disclosures	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Segment Disclosures	Segment Disclosures Our reportable segments are strategic business units that offer different products and services. Our segments are managed separately because each segment requires different marketing strategies and business knowledge. Management evaluates performance based on segment operating margin, which includes revenue from affiliates and third-party customers, intersegment transactions, operating expense, cost of product sales, other operating (income) expense and earnings of non-controlled entities. We believe that investors benefit from having access to the same financial measures used by management. Operating margin, which is presented in the following tables, is an important measure used by management to evaluate the economic performance of our core operations. Operating margin is not a GAAP measure, but the components of operating margin are computed using amounts that are determined in accordance with GAAP. A reconciliation of operating margin to operating profit, which is its nearest comparable GAAP financial measure, is included in the tables below. Operating profit includes depreciation, amortization and impairment expense and general and administrative (“G&A”) expense that management does not consider when evaluating the core profitability of our separate operating segments. Three Months Ended September 30, 2021 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 349.4 $ 116.9 $ (1.4) $ 464.9 Product sales revenue 153.5 15.4 — 168.9 Affiliate management fee revenue 1.6 3.7 — 5.3 Total revenue 504.5 136.0 (1.4) 639.1 Operating expense 114.5 35.1 (3.1) 146.5 Cost of product sales 128.4 17.5 — 145.9 Other operating (income) expense (2.8) 0.2 — (2.6) Earnings of non-controlled entities (8.1) (28.3) — (36.4) Operating margin 272.5 111.5 1.7 385.7 Depreciation, amortization and impairment expense 42.6 17.2 1.7 61.5 G&A expense 33.4 13.1 — 46.5 Operating profit $ 196.5 $ 81.2 $ — $ 277.7 Three Months Ended September 30, 2022 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 370.1 $ 113.8 $ (1.4) $ 482.5 Product sales revenue 318.3 69.9 — 388.2 Affiliate management fee revenue 1.5 3.9 — 5.4 Total revenue 689.9 187.6 (1.4) 876.1 Operating expense 98.3 42.8 (2.9) 138.2 Cost of product sales 222.2 46.4 — 268.6 Other operating (income) expense (1.2) — — (1.2) Earnings of non-controlled entities (13.3) (28.5) — (41.8) Operating margin 383.9 126.9 1.5 512.3 Depreciation, amortization and impairment expense 39.6 16.8 1.5 57.9 G&A expense 41.8 16.2 — 58.0 Operating profit $ 302.5 $ 93.9 $ — $ 396.4 Nine Months Ended September 30, 2021 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 984.9 $ 351.8 $ (4.4) $ 1,332.3 Product sales revenue 487.6 88.0 — 575.6 Affiliate management fee revenue 4.8 11.1 — 15.9 Total revenue 1,477.3 450.9 (4.4) 1,923.8 Operating expense 314.2 118.1 (9.4) 422.9 Cost of product sales 394.3 94.3 — 488.6 Other operating (income) expense (6.3) 2.2 — (4.1) Earnings of non-controlled entities (25.5) (90.6) — (116.1) Operating margin 800.6 326.9 5.0 1,132.5 Depreciation, amortization and impairment expense 112.8 50.6 5.0 168.4 G&A expense 106.7 41.9 — 148.6 Operating profit $ 581.1 $ 234.4 $ — $ 815.5 Nine Months Ended September 30, 2022 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,028.8 $ 349.9 $ (4.0) $ 1,374.7 Product sales revenue 850.9 97.1 — 948.0 Affiliate management fee revenue 5.0 11.7 — 16.7 Total revenue 1,884.7 458.7 (4.0) 2,339.4 Operating expense 322.8 128.2 (8.5) 442.5 Cost of product sales 715.9 78.4 — 794.3 Other operating (income) expense (4.3) 2.1 — (2.2) Earnings of non-controlled entities (15.0) (88.7) — (103.7) Operating margin 865.3 338.7 4.5 1,208.5 Depreciation, amortization and impairment expense 118.4 51.5 4.5 174.4 G&A expense 127.8 49.9 — 177.7 Operating profit $ 619.1 $ 237.3 $ — $ 856.4

Revenue

Revenue	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Statements of Income Disclosures The following tables provide details of our revenue disaggregated by key activities that comprise our performance obligations by operating segment (in millions): Three Months Ended September 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 241.7 $ 58.1 $ — $ 299.8 Terminalling 26.4 3.3 — 29.7 Storage 42.3 28.2 (1.4) 69.1 Ancillary services 34.1 7.7 — 41.8 Lease revenue 4.9 19.6 — 24.5 Transportation and terminals revenue 349.4 116.9 (1.4) 464.9 Product sales revenue 153.5 15.4 — 168.9 Affiliate management fee revenue 1.6 3.7 — 5.3 Total revenue 504.5 136.0 (1.4) 639.1 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (4.9) (19.6) — (24.5) (Gains) losses from futures contracts included in product sales revenue 27.0 2.7 — 29.7 Affiliate management fee revenue (1.6) (3.7) — (5.3) Total revenue from contracts with customers under ASC 606 $ 525.0 $ 115.4 $ (1.4) $ 639.0 Three Months Ended September 30, 2022 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 266.4 $ 49.9 $ — $ 316.3 Terminalling 28.6 16.2 — 44.8 Storage 36.5 24.4 (1.4) 59.5 Ancillary services 30.8 3.3 — 34.1 Lease revenue 7.8 20.0 — 27.8 Transportation and terminals revenue 370.1 113.8 (1.4) 482.5 Product sales revenue 318.3 69.9 — 388.2 Affiliate management fee revenue 1.5 3.9 — 5.4 Total revenue 689.9 187.6 (1.4) 876.1 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (7.8) (20.0) — (27.8) (Gains) losses from futures contracts included in product sales revenue (104.1) (6.4) — (110.5) Affiliate management fee revenue (1.5) (3.9) — (5.4) Total revenue from contracts with customers under ASC 606 $ 576.5 $ 157.3 $ (1.4) $ 732.4 Nine Months Ended September 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 667.2 $ 172.9 $ — $ 840.1 Terminalling 74.2 12.6 — 86.8 Storage 135.9 87.2 (4.4) 218.7 Ancillary services 94.6 23.3 — 117.9 Lease revenue 13.0 55.8 — 68.8 Transportation and terminals revenue 984.9 351.8 (4.4) 1,332.3 Product sales revenue 487.6 88.0 — 575.6 Affiliate management fee revenue 4.8 11.1 — 15.9 Total revenue 1,477.3 450.9 (4.4) 1,923.8 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (13.0) (55.8) — (68.8) (Gains) losses from futures contracts included in product sales revenue 108.6 14.2 — 122.8 Affiliate management fee revenue (4.8) (11.1) — (15.9) Total revenue from contracts with customers under ASC 606 $ 1,568.1 $ 398.2 $ (4.4) $ 1,961.9 Nine Months Ended September 30, 2022 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 729.0 $ 167.0 $ — $ 896.0 Terminalling 81.0 35.3 — 116.3 Storage 114.0 76.0 (4.0) 186.0 Ancillary services 84.7 14.7 — 99.4 Lease revenue 20.1 56.9 — 77.0 Transportation and terminals revenue 1,028.8 349.9 (4.0) 1,374.7 Product sales revenue 850.9 97.1 — 948.0 Affiliate management fee revenue 5.0 11.7 — 16.7 Total revenue 1,884.7 458.7 (4.0) 2,339.4 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (20.1) (56.9) — (77.0) (Gains) losses from futures contracts included in product sales revenue 90.3 4.6 — 94.9 Affiliate management fee revenue (5.0) (11.7) — (16.7) Total revenue from contracts with customers under ASC 606 $ 1,949.9 $ 394.7 $ (4.0) $ 2,340.6 Balance Sheet Disclosures The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in millions): December 31, 2021 September 30, 2022 Accounts receivable from contracts with customers $ 134.8 $ 177.8 Contract assets $ 12.5 $ 11.0 Contract liabilities $ 100.1 $ 111.7 For the respective three and nine months ended September 30, 2022, we recognized $1.5 million and $70.5 million of transportation and terminals revenue that was recorded in deferred revenue as of December 31, 2021. Unfulfilled Performance Obligations The following table provides the aggregate amount of the transaction price allocated to our unfulfilled performance obligations (“UPOs”) as of September 30, 2022 by operating segment, including the range of years remaining on our contracts with customers and an estimate of revenues expected to be recognized over the next 12 months (dollars in millions): Refined Products Crude Oil Total Balances at September 30, 2022 $ 1,941.8 $ 916.1 $ 2,857.9 Remaining terms 1 - 16 years 1 - 9 years Estimated revenues from UPOs to be recognized in the next 12 months $ 345.7 $ 237.7 $ 583.4

Investments in Non-Controlled E

Investments in Non-Controlled Entities	9 Months Ended
	Sep. 30, 2022
Equity Method Investments and Joint Ventures [Abstract]
Investments in Non-Controlled Entities	Investments in Non-Controlled Entities Our equity investments in non-controlled entities at September 30, 2022 were comprised of: Entity Ownership Interest BridgeTex Pipeline Company, LLC (“BridgeTex”) 30% Double Eagle Pipeline LLC (“Double Eagle”) 50% HoustonLink Pipeline Company, LLC (“HoustonLink”) 50% MVP Terminalling, LLC (“MVP”) 25% Powder Springs Logistics, LLC (“Powder Springs”) 50% Saddlehorn Pipeline Company, LLC (“Saddlehorn”) 30% Seabrook Logistics, LLC (“Seabrook”) 50% Texas Frontera, LLC (“Texas Frontera”) 50% We serve as operator of BridgeTex, HoustonLink, MVP, Powder Springs, Saddlehorn, Texas Frontera and the pipeline activities of Seabrook. We receive fees for management services as well as reimbursement or payment to us for certain direct operational payroll and other overhead costs. The management fees we receive are reported as affiliate management fee revenue on our consolidated statements of income. Cost reimbursements we receive from these entities in connection with our operating services are included as reductions to costs and expenses on our consolidated statements of income and totaled $0.9 million and $2.2 million during the three months ended September 30, 2021 and 2022, respectively, and $2.1 million and $6.0 million during the nine months ended September 30, 2021 and 2022, respectively. We recorded the following revenue and expense transactions from certain of these non-controlled entities in our consolidated statements of income (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2021 2022 2021 2022 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 10.7 $ 13.0 $ 34.4 $ 35.6 Double Eagle, throughput revenue $ 0.7 $ 0.7 $ 2.5 $ 1.7 Saddlehorn, storage revenue $ 0.6 $ 0.6 $ 1.8 $ 1.8 Operating expense: Seabrook, storage lease and ancillary services $ 4.2 $ 4.8 $ 15.1 $ 13.5 Other operating income: Seabrook, gain on sale of air emission credits $ — $ — $ 0.4 $ — Our consolidated balance sheets reflected the following balances related to transactions with our non-controlled entities (in millions): December 31, 2021 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable BridgeTex $ 1.2 $ — $ 0.3 Double Eagle $ 0.2 $ — $ — HoustonLink $ — $ — $ 0.2 MVP $ — $ 0.6 $ 2.2 Saddlehorn $ — $ 0.2 $ — Seabrook $ — $ 0.1 $ 3.2 September 30, 2022 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable BridgeTex $ 4.1 $ — $ — Double Eagle $ 0.2 $ — $ — MVP $ — $ 1.3 $ 3.7 Saddlehorn $ — $ 0.2 $ — Seabrook $ 0.3 $ — $ 3.1 We entered into a long-term terminalling and storage contract with Seabrook for our exclusive use of dedicated tankage that provides our customers with crude oil storage capacity and dock access for crude oil imports and exports on the Texas Gulf Coast (see Note 8 – Leases for more details regarding this lease). The financial results from MVP, Powder Springs and Texas Frontera are included in our refined products segment and the financial results from BridgeTex, Double Eagle, HoustonLink, Saddlehorn and Seabrook are included in our crude oil segment, each as earnings of non-controlled entities. A summary of our investments in non-controlled entities (representing only our proportionate interest) follows (in millions): Investments at December 31, 2021 $ 980.8 Additional investment 0.9 Other adjustments 0.4 Earnings of non-controlled entities: Proportionate share of earnings 105.0 Amortization of excess investment and capitalized interest (1.3) Earnings of non-controlled entities 103.7 Less: Distributions from operations of non-controlled entities 122.0 Distributions from returns of investments in non-controlled entities 1.9 Investments at September 30, 2022 $ 961.9

Inventory

Inventory	9 Months Ended
	Sep. 30, 2022
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory at December 31, 2021 and September 30, 2022 was as follows (in millions): December 31, 2021 September 30, Refined products $ 138.0 $ 104.8 Transmix 72.4 100.0 LPGs 42.0 104.8 Crude oil 25.4 35.5 Additives 3.3 3.7 Total inventory $ 281.1 $ 348.8

Debt

Debt	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Debt	Debt Long-term debt at December 31, 2021 and September 30, 2022 was as follows (in millions): December 31, September 30, Commercial paper $ 108.0 $ 29.0 3.20% Notes due 2025 250.0 250.0 5.00% Notes due 2026 650.0 650.0 3.25% Notes due 2030 500.0 500.0 6.40% Notes due 2037 250.0 250.0 4.20% Notes due 2042 250.0 250.0 5.15% Notes due 2043 550.0 550.0 4.20% Notes due 2045 250.0 250.0 4.25% Notes due 2046 500.0 500.0 4.20% Notes due 2047 500.0 500.0 4.85% Notes due 2049 500.0 500.0 3.95% Notes due 2050 800.0 800.0 Face value of long-term debt 5,108.0 5,029.0 Unamortized debt issuance costs (1) (37.8) (36.0) Net unamortized debt premium (1) 18.6 18.4 Long-term debt, net $ 5,088.8 $ 5,011.4 (1) Debt issuance costs, note discounts and premiums are being amortized or accreted to the applicable notes over the respective lives of those notes. All of the instruments detailed in the table above are senior indebtedness. Other Debt Revolving Credit Facility. At September 30, 2022, the total borrowing capacity under our revolving credit facility maturing in May 2024 was $1.0 billion. Any borrowings outstanding under this facility are classified as long-term debt on our consolidated balance sheets. Borrowings under the facility are unsecured and bear interest at LIBOR plus a spread ranging from 0.875% to 1.500% based on our credit ratings. Additionally, an unused commitment fee is assessed at a rate between 0.075% and 0.200% depending on our credit ratings. The unused commitment fee was 0.125% at September 30, 2022. Borrowings under this facility may be used for general purposes, including capital expenditures. As of December 31, 2021 and September 30, 2022, there were no borrowings outstanding under this facility and $3.5 million was obligated for letters of credit. Amounts obligated for letters of credit are not reflected as debt on our consolidated balance sheets, but decrease our borrowing capacity under this facility. Our revolving credit facility requires us to maintain a specified ratio of consolidated debt to EBITDA (as defined in the credit agreement) of no greater than 5.0 to 1.0. In addition, the revolving credit facility and the indentures under which our senior notes were issued contain covenants that limit our ability to, among other things, incur indebtedness secured by certain liens or encumber our assets, engage in certain sale-leaseback transactions and consolidate, merge or dispose of all or substantially all of our assets. We were in compliance with these covenants as of and during the nine months ended September 30, 2022. Commercial Paper Program. We have a commercial paper program under which we may issue commercial paper notes in an amount up to the available capacity under our $1.0 billion revolving credit facility. The maturities of the commercial paper notes vary, but may not exceed 397 days from the date of issuance. Because the commercial paper we can issue is limited to amounts available under our revolving credit facility, amounts outstanding under the program are classified as long-term debt. The commercial paper notes are sold under customary terms in the commercial paper market and are issued at a discount from par, or alternatively, are sold at par and bear varying interest rates on a fixed or floating basis. Commercial paper borrowings outstanding at September 30, 2022 were $29.0 million. The weighted average interest rate for commercial paper borrowings based on the number of days outstanding was 1.0% for the nine months ended September 30, 2022.

Leases

Leases	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Leases	Leases We entered into a long-term terminalling and storage contract with Seabrook for our exclusive use of dedicated tankage that provides our customers with crude oil storage capacity and dock access for crude oil imports and exports on the Texas Gulf Coast. The following tables provide information about our third-party and Seabrook operating leases (in millions): Three Months Ended September 30, 2021 Three Months Ended September 30, 2022 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 6.4 $ 4.2 $ 10.6 $ 6.3 $ 4.8 $ 11.1 Nine Months Ended September 30, 2021 Nine Months Ended September 30, 2022 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 20.3 $ 15.1 $ 35.4 $ 18.8 $ 13.5 $ 32.3 December 31, 2021 September 30, 2022 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Current lease liability $ 17.8 $ 8.0 $ 25.8 $ 21.1 $ 9.7 $ 30.8 Long-term lease liability $ 102.8 $ 44.5 $ 147.3 $ 84.5 $ 36.8 $ 121.3 Right-of-use asset $ 121.7 $ 52.5 $ 174.2 $ 109.1 $ 46.6 $ 155.7

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans We sponsor a defined contribution plan in which we match our employees’ qualifying contributions, resulting in additional expense to us. Expenses related to the defined contribution plan, including expense related to discontinued operations, were $2.7 million for the three months ended September 30, 2021 and 2022 and $8.1 million and $9.3 million for the nine months ended September 30, 2021 and 2022, respectively. In addition, we sponsor two pension plans, including one for non-union employees and one that covers union employees, and a postretirement benefit plan for certain employees. The following disclosures related to these plans include amounts associated with discontinued operations. Net periodic benefit expense for the three and nine months ended September 30, 2021 and 2022 were as follows (in millions): Three Months Ended Three Months Ended September 30, 2021 September 30, 2022 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 7.0 $ — $ 6.9 $ 0.1 Interest cost 2.3 0.1 2.7 0.1 Expected return on plan assets (2.9) — (3.2) — Amortization of actuarial loss 1.2 0.2 1.0 0.1 Settlement cost 1.3 — 1.5 — Net periodic benefit cost $ 8.9 $ 0.3 $ 8.9 $ 0.3 Nine Months Ended Nine Months Ended September 30, 2021 September 30, 2022 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 21.3 $ 0.2 $ 20.6 $ 0.2 Interest cost 7.0 0.3 8.0 0.3 Expected return on plan assets (8.9) — (9.7) — Amortization of prior service credit (0.1) — (0.1) — Amortization of actuarial loss 4.0 0.5 3.2 0.3 Settlement cost 2.8 — 1.5 — Net periodic benefit cost $ 26.1 $ 1.0 $ 23.5 $ 0.8 The service component of our net periodic benefit costs is presented in operating expense and G&A expense, and the non-service components are presented in other (income) expense in our consolidated statements of income. The changes in accumulated other comprehensive loss (“AOCL”) related to employee benefit plan assets and benefit obligations for the three and nine months ended September 30, 2021 and 2022 were as follows (in millions): Three Months Ended Three Months Ended September 30, 2021 September 30, 2022 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (101.2) $ (11.7) $ (92.0) $ (8.1) Net actuarial gain (loss) — — 5.1 — Recognition of prior service credit amortization in income — — — — Recognition of actuarial loss amortization in income 1.2 0.2 1.0 0.1 Recognition of settlement cost in income 1.3 — 1.5 — Ending balance $ (98.7) $ (11.5) $ (84.4) $ (8.0) Nine Months Ended Nine Months Ended September 30, 2021 September 30, 2022 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (117.8) $ (10.4) $ (92.8) $ (10.7) Net actuarial gain (loss) 12.4 (1.6) 3.8 2.4 Recognition of prior service credit amortization in income (0.1) — (0.1) — Recognition of actuarial loss amortization in income 4.0 0.5 3.2 0.3 Recognition of settlement cost in income 2.8 — 1.5 — Ending balance $ (98.7) $ (11.5) $ (84.4) $ (8.0) Contributions estimated to be paid into the plans in 2022 are $39.0 million and $0.9 million for the pension plans and other postretirement benefit plan, respectively.

Long-Term Incentive Plan

Long-Term Incentive Plan	9 Months Ended
	Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Long-Term Incentive Plan	Long-Term Incentive Plan The compensation committee of our board administers our long-term incentive plan (“LTIP”) covering certain of our employees and the independent directors of our board. The LTIP primarily consists of phantom units and permits the grant of awards covering an aggregate payout of 13.7 million of our common units. The estimated units remaining available under the LTIP at September 30, 2022 totaled approximately 1.8 million. Equity-based incentive compensation expense for the three and nine months ended September 30, 2021 and 2022, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2021 2022 2021 2022 Performance-based awards $ 3.0 $ 3.3 $ 7.9 $ 15.9 Time-based awards 2.6 2.6 7.8 12.9 Total $ 5.6 $ 5.9 $ 15.7 $ 28.8 On February 9, 2022, 622,986 unit awards were granted pursuant to our LTIP. These awards included both performance-based and time-based awards and have a three-year vesting period that will end on December 31, 2024. Basic and Diluted Net Income Per Common Unit The difference between our actual common units outstanding and our weighted average number of common units outstanding used to calculate net income per common unit is due to the impact of: (i) the phantom units issued to our independent directors, (ii) unit awards granted to retirees or employees of retirement age and (iii) the weighted average effect of units actually issued or repurchased during a period. The difference between the weighted average number of common units outstanding used for basic and diluted net income per unit calculations on our consolidated statements of income is primarily the dilutive effect of phantom unit awards granted pursuant to our LTIP, which have not yet vested in periods where contingent performance metrics have been met.

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Commodity Derivatives Our open futures contracts at September 30, 2022 were as follows: Type of Contract/Accounting Methodology Product Represented by the Contract and Associated Barrels Maturity Dates Commodity derivatives contract - Economic hedges 5.3 million barrels of refined products and crude oil Between October 2022 and December 2023 Commodity derivatives contract - Economic hedges 1.6 million barrels of gas liquids Between October 2022 and December 2023 Commodity Derivatives Contracts and Deposits Offsets At December 31, 2021, we had made margin deposits of $46.3 million for our commodity derivatives contracts with our counterparties, which were recorded as current assets under commodity derivatives deposits on our consolidated balance sheets. At September 30, 2022, we held margin deposits, net, of $12.5 million for our commodity derivatives contracts with our counterparties, of which $0.4 million were recorded as current assets under commodity derivatives deposits and $12.9 million were recorded as current liabilities under commodity derivatives deposits on our consolidated balance sheets. We have the right to offset the combined fair values of our open derivatives contracts against our margin deposits under a master netting arrangement for each counterparty; however, we have elected to present the combined fair values of our open derivatives contracts separately from the related margin deposits on our consolidated balance sheets. Additionally, we have the right to offset the fair values of our derivatives contracts together for each counterparty, which we have elected to do, and we report the combined net balances on our consolidated balance sheets. A schedule of the derivative amounts we have offset and the deposit amounts we could offset under master netting arrangements are provided below as of December 31, 2021 and September 30, 2022 (in millions): Description Gross Amounts of Recognized Assets (Liabilities) Gross Amounts of Assets (Liabilities) Offset in the Consolidated Balance Sheets Net Amounts of Assets (Liabilities) Presented in the Consolidated Balance Sheets Margin Deposit Amounts Not Offset in the Consolidated Balance Sheets Net Asset Amount (1) As of December 31, 2021 $ (22.3) $ 5.1 $ (17.2) $ 46.3 $ 29.1 As of September 30, 2022 $ 67.7 $ (32.5) $ 35.2 $ (12.5) $ 22.7 (1) Amount represents the maximum loss we would incur if all of our counterparties failed to perform on their derivative contracts. Basis Derivative Agreement During 2019, we entered into a basis derivative agreement with a joint venture co-owner’s affiliate, and, contemporaneously, that affiliate entered into an intrastate transportation services agreement with the joint venture. Settlements under the basis derivative agreement were determined based on the basis differential of crude oil prices at different market locations and a notional volume of 30,000 barrels per day. As a result, we accounted for this agreement as a derivative and recognized the changes in fair value based on forward price curves for crude oil in West Texas and the Houston Gulf Coast in other operating income (expense) in our consolidated statements of income. The liability for this agreement at December 31, 2021 was $1.5 million. The basis derivative agreement expired in early 2022. Impact of Derivatives on Our Financial Statements Comprehensive Income The changes in derivative activity included in AOCL for the three and nine months ended September 30, 2021 and 2022 were as follows (in millions): Three Months Ended Nine Months Ended September 30, September 30, Derivative Losses Included in AOCL 2021 2022 2021 2022 Beginning balance $ (53.2) $ (49.7) $ (55.0) $ (51.5) Reclassification of net loss on cash flow hedges to income 0.9 0.9 2.7 2.7 Ending balance $ (52.3) $ (48.8) $ (52.3) $ (48.8) The following is a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2021 and 2022 of derivatives that were designated as cash flow hedges (in millions): Interest Rate Contracts Location of Loss Reclassified from AOCL into Income Amount of Loss Reclassified from AOCL into Income Three Months Ended September 30, 2021 and 2022 Interest expense $ (0.9) Nine Months Ended September 30, 2021 and 2022 Interest expense $ (2.7) As of September 30, 2022, the net loss estimated to be classified to interest expense over the next twelve months from AOCL is approximately $3.5 million. This amount relates to the amortization of losses on interest rate contracts over the life of the related debt instruments. The following table provides a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2021 and 2022 of derivatives that were not designated as hedging instruments (in millions): Amount of Gain (Loss) Recognized on Derivatives Three Months Ended Nine Months Ended Location of Gain (Loss) September 30, September 30, Derivative Instrument 2021 2022 2021 2022 Commodity derivatives contracts Product sales revenue $ (29.7) $ 110.5 $ (122.8) $ (94.9) Commodity derivatives contracts Cost of product sales 19.3 (21.6) 26.9 (20.4) Basis derivative agreement Other operating income (expense) (1.7) — (3.6) (2.1) Total $ (12.1) $ 88.9 $ (99.5) $ (117.4) The impact of the derivatives in the above table was reflected as cash from operations on our consolidated statements of cash flows. Balance Sheets The following tables provide a summary of the fair value of derivatives , which are presented on a net basis in our consolidated balance sheets, that were not designated as hedging instruments as of December 31, 2021 and September 30, 2022 (in millions): December 31, 2021 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Commodity derivatives contracts Commodity derivatives contracts, net $ 5.1 Commodity derivatives contracts, net $ 22.3 Basis derivative agreement Other current assets — Other current liabilities 1.5 Total $ 5.1 Total $ 23.8 September 30, 2022 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Commodity derivatives contracts Commodity derivatives contracts, net $ 64.0 Commodity derivatives contracts, net $ 30.0 Commodity derivatives contracts Other noncurrent assets 3.7 Other noncurrent liabilities 2.5 Total $ 67.7 Total $ 32.5

Fair Value

Fair Value	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Fair Value Methods and Assumptions - Financial Assets and Liabilities We used the following methods and assumptions in estimating fair value of our financial assets and liabilities: • Commodity derivatives contracts . These include exchange-traded and over-the-counter derivative contracts related to petroleum products. These contracts are carried at fair value on our consolidated balance sheets. The exchange-traded contracts are valued based on quoted prices in active markets, while the over-the-counter contracts are valued based on observable market data inputs including published commodity pricing data. See Note 11 – Derivative Financial Instruments for further disclosures regarding these contracts. • Basis derivative agreement. During 2019, we entered into a basis derivative agreement with a joint venture co-owner’s affiliate, and, contemporaneously, that affiliate entered into an intrastate transportation services agreement with the joint venture. Settlements under the basis derivative agreement were determined based on the basis differential of crude oil prices at different market locations and a notional volume of 30,000 barrels per day (see Note 11 - Derivative Financial Instruments for further disclosures regarding this agreement). The fair value of this derivative was calculated based on observable market data inputs, including published commodity pricing data and market interest rates. The key inputs in the fair value calculation include the forward price curves for crude oil, the implied forward correlation in crude oil prices between West Texas and the Houston Gulf Coast, and the implied forward volatility for crude oil futures contracts. This agreement expired in early 2022. • Long-term receivables. These include payments receivable under a sales-type leasing arrangement and payments due to us for environmental liability insurance. These receivables were recorded at fair value on our consolidated balance sheets, using then-current market rates to estimate the present value of future cash flows. • Contractual obligations. At September 30, 2022, these primarily included a long-term contractual obligation we entered into in connection with the 2020 sale of three marine terminals to a subsidiary of Buckeye. This obligation requires us to perform certain environmental remediation work on Buckeye’s behalf at the New Haven, Connecticut terminal. This contractual obligation was recorded at fair value on our consolidated balance sheets upon initial recognition and was calculated using our best estimate of potential outcome scenarios to determine our liability for the remediation costs required in this agreement. • Debt. The fair value of our publicly traded notes was based on the prices of those notes at December 31, 2021 and September 30, 2022; however, where recent observable market trades were not available, prices were determined using adjustments to the last traded value for that debt issuance or by adjustments to the prices of similar debt instruments of peer entities that are actively traded. The carrying amount of borrowings, if any, under our revolving credit facility and our commercial paper program approximates fair value due to the frequent repricing of these obligations. Fair Value Measurements - Financial Assets and Liabilities The following tables summarize the carrying amounts, fair values and fair value measurements recorded or disclosed as of December 31, 2021 and September 30, 2022 based on the three levels established by ASC 820, Fair Value Measurements and Disclosures (in millions): Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (17.2) $ (17.2) $ (18.6) $ 1.4 $ — Basis derivative agreement $ (1.5) $ (1.5) $ — $ (1.5) $ — Long-term receivables $ 10.1 $ 10.1 $ — $ — $ 10.1 Contractual obligations $ (9.8) $ (9.8) $ — $ — $ (9.8) Debt $ (5,088.8) $ (5,711.5) $ — $ (5,711.5) $ — Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ 35.2 $ 35.2 $ 60.6 $ (25.4) $ — Long-term receivables $ 8.8 $ 8.8 $ — $ — $ 8.8 Contractual obligations $ (9.9) $ (9.9) $ — $ — $ (9.9) Debt $ (5,011.4) $ (4,142.2) $ — $ (4,142.2) $ —

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Butane Blending Patent Infringement Proceeding. On October 4, 2017, Sunoco Partners Marketing & Terminals L.P. (“Sunoco”) brought an action for patent infringement in the U.S. District Court for the District of Delaware alleging Magellan and Powder Springs Logistics, LLC (“Powder Springs”) were infringing patents relating to butane blending. A trial concluded on December 6, 2021, at which the jury found Magellan and Powder Springs willfully infringed and awarded damages of approximately $12.2 million. In post-trial motions, Sunoco requested that the court enhance and treble the damages award based upon the jury’s finding of willfulness, and that the court award additional damages for periods not covered by the evidence presented at trial and pre- and post-judgment interest. On August 31, 2022, the court entered orders rejecting Sunoco’s request for enhanced damages but awarded additional damages and interest of approximately $10.7 million. The final determination of the trial court is subject to potential appeals. The amounts we have accrued in relation to the claims represent our best estimate of probable damages, and although it is not possible to predict the ultimate outcome, we believe the ultimate resolution of this matter will not have a material adverse effect on our business. Corpus Christi Terminal Personal Injury Proceeding. Ismael Garcia, Andrew Ramirez, and Jesus Juarez Quintero, et al. brought personal injury cases against Magellan and co-defendants Triton Industrial Services, LLC, Tidal Tank, Inc. and Cleveland Integrity Services, Inc. in Nueces County Court in Texas. The claims were originally brought in three different actions but were consolidated into a single case on March 2, 2021. Claims are asserted by or on behalf of seven individuals, and certain beneficiaries, who were employed by a contractor of Magellan and were injured, one fatally, as a result of a fire that occurred on December 5, 2020 while they were cleaning a tank at our Corpus Christi terminal. The plaintiffs are seeking damages of an undetermined amount. While the outcome cannot be predicted with certainty, we believe the ultimate resolution of this matter will not have a material adverse effect on our business. Corpus Christi Terminal TCEQ Proceeding. On April 11, 2022, the State of Texas, through its Attorney General on behalf of the Texas Commission on Environmental Quality (“TCEQ”), brought an action for alleged violations of the Texas Clean Air Act in connection with the fire at our Corpus Christi, Texas terminal discussed above. The TCEQ is seeking statutory civil penalties and statutory attorney’s fees over $0.5 million but not more than $1.0 million. While the outcome cannot be predicted with certainty, we believe the ultimate resolution of this matter will not have a material adverse effect on our business. Environmental Liabilities Liabilities recognized for estimated environmental costs were $9.8 million at December 31, 2021 and $9.6 million at September 30, 2022. We have classified environmental liabilities as current or noncurrent based on management’s estimates regarding the timing of actual payments. Environmental expenses recognized as a result of changes in our environmental liabilities are included in operating expenses on our consolidated statements of income. Environmental expenses were $0.4 million and $0.9 million for the three months ended September 30, 2021 and 2022, respectively, and $2.4 million for the nine months ended September 30, 2021 and 2022. Other In first quarter 2020, we entered into a long-term contractual obligation in connection with the sale of three marine terminals to Buckeye. This obligation requires us to perform certain environmental remediation work on Buckeye’s behalf at the New Haven, Connecticut terminal. At December 31, 2021, our balance sheet included a current liability of $0.5 million and a noncurrent liability of $8.9 million, and as of September 30, 2022, our balance sheet included a current liability of $0.4 million and a noncurrent liability of $8.7 million, reflecting the fair values of these obligations. We have entered into an agreement to guarantee our 50% pro rata share, up to $50.0 million, of contractual obligations under the Powder Springs’ $100 million credit facility. As of September 30, 2022, our consolidated balance sheets reflected a $0.8 million other current liability and a corresponding increase in our investment in non-controlled entities on our consolidated balance sheets to reflect the fair value of this guarantee.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2022
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsStacy Methvin is an independent member of our board and also serves as a director of one of our customers. We received tariff, terminalling and other ancillary revenue from this customer of $23.2 million and $16.5 million for the three months ended September 30, 2021 and 2022, respectively, and $51.6 million and $46.5 million for the nine months ended September 30, 2021 and 2022, respectively. We recorded receivables of $5.4 million and $6.2 million from this customer at December 31, 2021 and September 30, 2022, respectively. See Note 5 – Investments in Non-Controlled Entities and Note 8 – Leases

Partners' Capital and Distribut

Partners' Capital and Distributions	9 Months Ended
	Sep. 30, 2022
Partners' Capital [Abstract]
Partners' Capital and Distributions	Partners’ Capital and Distributions Partners ’ Capital Our board authorized the repurchase of up to $1.5 billion of our common units through 2024. The timing, price and actual number of common units repurchased will depend on a number of factors including our expected expansion capital spending needs, excess cash available, balance sheet metrics, legal and regulatory requirements, market conditions and the trading price of our common units. The repurchase program does not obligate us to acquire any particular amount of common units and may be suspended or discontinued at any time. The following table details the changes in the number of our common units outstanding from December 31, 2021 through September 30, 2022: Common units outstanding on December 31, 2021 212,387,990 Units repurchased during 2022 (7,676,262) January 2022—Settlement of employee LTIP awards 200,949 During 2022—Other (1) 23,400 Common units outstanding on September 30, 2022 204,936,077 (1) Common units issued to settle the equity-based retainers paid to certain independent directors of our board. Distributions Distributions we paid during 2021 and 2022 were as follows (in millions, except per unit amounts): Payment Date Per Unit Total Distribution 2/12/2021 $ 1.0275 $ 229.4 5/14/2021 1.0275 229.0 8/13/2021 1.0275 226.6 Through 09/30/2021 3.0825 685.0 11/12/2021 1.0375 221.4 Total $ 4.1200 $ 906.4 2/14/2022 $ 1.0375 $ 220.6 5/13/2022 1.0375 219.5 8/12/2022 1.0375 215.2 Through 09/30/2022 3.1125 655.3 11/14/2022 (1) 1.0475 214.7 Total $ 4.1600 $ 870.0 (1) Our board declared this distribution in October 2022 to be paid on November 14, 2022 to unitholders of record at the close of business on November 7, 2022. The estimated total distribution is based upon the number of common units currently outstanding.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Recognizable events No recognizable events occurred subsequent to September 30, 2022. Non-recognizable events Distribution. In October 2022, our board declared a quarterly distribution of $1.0475 per unit for the period of July 1, 2022 through September 30, 2022. This quarterly distribution will be paid on November 14, 2022 to unitholders of record on November 7, 2022.

Organization, Description of _2

Organization, Description of Business and Basis Of Presentation (Policies)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation In the opinion of management, our accompanying consolidated financial statements which are unaudited, except for the consolidated balance sheet as of December 31, 2021, which is derived from our audited financial statements, include all normal and recurring adjustments necessary to present fairly our financial position as of September 30, 2022, the results of operations for the three and nine months ended September 30, 2021 and 2022 and cash flows for the nine months ended September 30, 2021 and 2022. The results of operations for the nine months ended September 30, 2022 are not necessarily indicative of the results to be expected for the full year ending December 31, 2022 for several reasons. Profits from our gas liquids blending activities are realized largely during the first and fourth quarters of each year. Additionally, gasoline demand, which drives transportation volumes and revenues on our refined products pipeline system, generally trends higher during the summer driving months. Further, the volatility of commodity prices impacts the profits from our commodity activities and the volume of petroleum products we transport on our pipelines. Pursuant to the rules and regulations of the Securities and Exchange Commission, the financial statements in this report have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2021.
Discontinued Operations	Discontinued Operations On June 8, 2022, we completed the sale of the independent terminals network comprised of 26 refined petroleum products terminals in the southeastern U.S. to Buckeye Partners, L.P. (“Buckeye”) for $446.2 million, including final working capital adjustments. The related results of operations, financial position and cash flows have been classified as discontinued operations for all periods presented (see Note 2 – Discontinued Operations for additional details). Unless indicated otherwise, the information in the Notes to Consolidated Financial Statements relates to continuing operations.
Use of Estimates	Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities that exist at the date of our consolidated financial statements, as well as their impact on the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates.
New Accounting Pronouncements	New Accounting Pronouncements We evaluate new Accounting Standards Codifications (“ASC”) and updates issued by the Financial Accounting Standards Board on an ongoing basis. There are no new accounting pronouncements that we anticipate will have a material impact on our financial statements.

Discontinued Operations (Tables

Discontinued Operations (Tables)	9 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations	Summarized Results of Discontinued Operations The following table provides the summarized results that have been presented as discontinued operations on the consolidated statements of income (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2021 2022 2021 2022 Transportation and terminals revenue $ 13.2 $ — $ 40.0 $ 21.1 Product sales revenue 14.5 — 59.1 30.0 Total revenue 27.7 — 99.1 51.1 Costs and expenses: Operating 2.9 — 10.1 8.0 Cost of product sales 8.8 — 40.6 28.8 Depreciation, amortization and impairment 0.1 — 7.1 — General and administrative 0.6 — 1.9 1.1 Total costs and expenses 12.4 — 59.7 37.9 Gain on disposition of assets — (1.6) — (164.0) Income from discontinued operations $ 15.3 $ 1.6 $ 39.4 $ 177.2 Summarized Assets and Liabilities of Discontinued Operations The following table provides the summarized assets and liabilities that were classified as held for sale on the consolidated balance sheet as of December 31, 2021 (in millions). Subsequent to the sale of the independent terminals network on June 8, 2022, no assets or liabilities were classified as held for sale in relation to discontinued operations. December 31, 2021 Assets: Trade accounts receivable $ 6.3 Inventory 17.0 Net property, plant and equipment 272.0 Goodwill 2.7 Other assets 1.5 Total assets classified as held for sale $ 299.5 Liabilities: Accounts payable $ 3.7 Accrued product liabilities 8.4 Other liabilities 3.7 Total liabilities classified as held for sale $ 15.8

Segment Disclosures (Tables)

Segment Disclosures (Tables)	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Schedule of Business Segment Reporting Information	A reconciliation of operating margin to operating profit, which is its nearest comparable GAAP financial measure, is included in the tables below. Operating profit includes depreciation, amortization and impairment expense and general and administrative (“G&A”) expense that management does not consider when evaluating the core profitability of our separate operating segments. Three Months Ended September 30, 2021 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 349.4 $ 116.9 $ (1.4) $ 464.9 Product sales revenue 153.5 15.4 — 168.9 Affiliate management fee revenue 1.6 3.7 — 5.3 Total revenue 504.5 136.0 (1.4) 639.1 Operating expense 114.5 35.1 (3.1) 146.5 Cost of product sales 128.4 17.5 — 145.9 Other operating (income) expense (2.8) 0.2 — (2.6) Earnings of non-controlled entities (8.1) (28.3) — (36.4) Operating margin 272.5 111.5 1.7 385.7 Depreciation, amortization and impairment expense 42.6 17.2 1.7 61.5 G&A expense 33.4 13.1 — 46.5 Operating profit $ 196.5 $ 81.2 $ — $ 277.7 Three Months Ended September 30, 2022 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 370.1 $ 113.8 $ (1.4) $ 482.5 Product sales revenue 318.3 69.9 — 388.2 Affiliate management fee revenue 1.5 3.9 — 5.4 Total revenue 689.9 187.6 (1.4) 876.1 Operating expense 98.3 42.8 (2.9) 138.2 Cost of product sales 222.2 46.4 — 268.6 Other operating (income) expense (1.2) — — (1.2) Earnings of non-controlled entities (13.3) (28.5) — (41.8) Operating margin 383.9 126.9 1.5 512.3 Depreciation, amortization and impairment expense 39.6 16.8 1.5 57.9 G&A expense 41.8 16.2 — 58.0 Operating profit $ 302.5 $ 93.9 $ — $ 396.4 Nine Months Ended September 30, 2021 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 984.9 $ 351.8 $ (4.4) $ 1,332.3 Product sales revenue 487.6 88.0 — 575.6 Affiliate management fee revenue 4.8 11.1 — 15.9 Total revenue 1,477.3 450.9 (4.4) 1,923.8 Operating expense 314.2 118.1 (9.4) 422.9 Cost of product sales 394.3 94.3 — 488.6 Other operating (income) expense (6.3) 2.2 — (4.1) Earnings of non-controlled entities (25.5) (90.6) — (116.1) Operating margin 800.6 326.9 5.0 1,132.5 Depreciation, amortization and impairment expense 112.8 50.6 5.0 168.4 G&A expense 106.7 41.9 — 148.6 Operating profit $ 581.1 $ 234.4 $ — $ 815.5 Nine Months Ended September 30, 2022 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,028.8 $ 349.9 $ (4.0) $ 1,374.7 Product sales revenue 850.9 97.1 — 948.0 Affiliate management fee revenue 5.0 11.7 — 16.7 Total revenue 1,884.7 458.7 (4.0) 2,339.4 Operating expense 322.8 128.2 (8.5) 442.5 Cost of product sales 715.9 78.4 — 794.3 Other operating (income) expense (4.3) 2.1 — (2.2) Earnings of non-controlled entities (15.0) (88.7) — (103.7) Operating margin 865.3 338.7 4.5 1,208.5 Depreciation, amortization and impairment expense 118.4 51.5 4.5 174.4 G&A expense 127.8 49.9 — 177.7 Operating profit $ 619.1 $ 237.3 $ — $ 856.4

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue from External Customers by Products and Services	The following tables provide details of our revenue disaggregated by key activities that comprise our performance obligations by operating segment (in millions): Three Months Ended September 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 241.7 $ 58.1 $ — $ 299.8 Terminalling 26.4 3.3 — 29.7 Storage 42.3 28.2 (1.4) 69.1 Ancillary services 34.1 7.7 — 41.8 Lease revenue 4.9 19.6 — 24.5 Transportation and terminals revenue 349.4 116.9 (1.4) 464.9 Product sales revenue 153.5 15.4 — 168.9 Affiliate management fee revenue 1.6 3.7 — 5.3 Total revenue 504.5 136.0 (1.4) 639.1 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (4.9) (19.6) — (24.5) (Gains) losses from futures contracts included in product sales revenue 27.0 2.7 — 29.7 Affiliate management fee revenue (1.6) (3.7) — (5.3) Total revenue from contracts with customers under ASC 606 $ 525.0 $ 115.4 $ (1.4) $ 639.0 Three Months Ended September 30, 2022 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 266.4 $ 49.9 $ — $ 316.3 Terminalling 28.6 16.2 — 44.8 Storage 36.5 24.4 (1.4) 59.5 Ancillary services 30.8 3.3 — 34.1 Lease revenue 7.8 20.0 — 27.8 Transportation and terminals revenue 370.1 113.8 (1.4) 482.5 Product sales revenue 318.3 69.9 — 388.2 Affiliate management fee revenue 1.5 3.9 — 5.4 Total revenue 689.9 187.6 (1.4) 876.1 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (7.8) (20.0) — (27.8) (Gains) losses from futures contracts included in product sales revenue (104.1) (6.4) — (110.5) Affiliate management fee revenue (1.5) (3.9) — (5.4) Total revenue from contracts with customers under ASC 606 $ 576.5 $ 157.3 $ (1.4) $ 732.4 Nine Months Ended September 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 667.2 $ 172.9 $ — $ 840.1 Terminalling 74.2 12.6 — 86.8 Storage 135.9 87.2 (4.4) 218.7 Ancillary services 94.6 23.3 — 117.9 Lease revenue 13.0 55.8 — 68.8 Transportation and terminals revenue 984.9 351.8 (4.4) 1,332.3 Product sales revenue 487.6 88.0 — 575.6 Affiliate management fee revenue 4.8 11.1 — 15.9 Total revenue 1,477.3 450.9 (4.4) 1,923.8 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (13.0) (55.8) — (68.8) (Gains) losses from futures contracts included in product sales revenue 108.6 14.2 — 122.8 Affiliate management fee revenue (4.8) (11.1) — (15.9) Total revenue from contracts with customers under ASC 606 $ 1,568.1 $ 398.2 $ (4.4) $ 1,961.9 Nine Months Ended September 30, 2022 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 729.0 $ 167.0 $ — $ 896.0 Terminalling 81.0 35.3 — 116.3 Storage 114.0 76.0 (4.0) 186.0 Ancillary services 84.7 14.7 — 99.4 Lease revenue 20.1 56.9 — 77.0 Transportation and terminals revenue 1,028.8 349.9 (4.0) 1,374.7 Product sales revenue 850.9 97.1 — 948.0 Affiliate management fee revenue 5.0 11.7 — 16.7 Total revenue 1,884.7 458.7 (4.0) 2,339.4 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (20.1) (56.9) — (77.0) (Gains) losses from futures contracts included in product sales revenue 90.3 4.6 — 94.9 Affiliate management fee revenue (5.0) (11.7) — (16.7) Total revenue from contracts with customers under ASC 606 $ 1,949.9 $ 394.7 $ (4.0) $ 2,340.6
Contract with Customer, Asset and Liability	The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in millions): December 31, 2021 September 30, 2022 Accounts receivable from contracts with customers $ 134.8 $ 177.8 Contract assets $ 12.5 $ 11.0 Contract liabilities $ 100.1 $ 111.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	The following table provides the aggregate amount of the transaction price allocated to our unfulfilled performance obligations (“UPOs”) as of September 30, 2022 by operating segment, including the range of years remaining on our contracts with customers and an estimate of revenues expected to be recognized over the next 12 months (dollars in millions): Refined Products Crude Oil Total Balances at September 30, 2022 $ 1,941.8 $ 916.1 $ 2,857.9 Remaining terms 1 - 16 years 1 - 9 years Estimated revenues from UPOs to be recognized in the next 12 months $ 345.7 $ 237.7 $ 583.4

Investments in Non-Controlled_2

Investments in Non-Controlled Entities (Tables)	9 Months Ended
	Sep. 30, 2022
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Our equity investments in non-controlled entities at September 30, 2022 were comprised of: Entity Ownership Interest BridgeTex Pipeline Company, LLC (“BridgeTex”) 30% Double Eagle Pipeline LLC (“Double Eagle”) 50% HoustonLink Pipeline Company, LLC (“HoustonLink”) 50% MVP Terminalling, LLC (“MVP”) 25% Powder Springs Logistics, LLC (“Powder Springs”) 50% Saddlehorn Pipeline Company, LLC (“Saddlehorn”) 30% Seabrook Logistics, LLC (“Seabrook”) 50% Texas Frontera, LLC (“Texas Frontera”) 50% We recorded the following revenue and expense transactions from certain of these non-controlled entities in our consolidated statements of income (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2021 2022 2021 2022 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 10.7 $ 13.0 $ 34.4 $ 35.6 Double Eagle, throughput revenue $ 0.7 $ 0.7 $ 2.5 $ 1.7 Saddlehorn, storage revenue $ 0.6 $ 0.6 $ 1.8 $ 1.8 Operating expense: Seabrook, storage lease and ancillary services $ 4.2 $ 4.8 $ 15.1 $ 13.5 Other operating income: Seabrook, gain on sale of air emission credits $ — $ — $ 0.4 $ — Our consolidated balance sheets reflected the following balances related to transactions with our non-controlled entities (in millions): December 31, 2021 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable BridgeTex $ 1.2 $ — $ 0.3 Double Eagle $ 0.2 $ — $ — HoustonLink $ — $ — $ 0.2 MVP $ — $ 0.6 $ 2.2 Saddlehorn $ — $ 0.2 $ — Seabrook $ — $ 0.1 $ 3.2 September 30, 2022 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable BridgeTex $ 4.1 $ — $ — Double Eagle $ 0.2 $ — $ — MVP $ — $ 1.3 $ 3.7 Saddlehorn $ — $ 0.2 $ — Seabrook $ 0.3 $ — $ 3.1 A summary of our investments in non-controlled entities (representing only our proportionate interest) follows (in millions): Investments at December 31, 2021 $ 980.8 Additional investment 0.9 Other adjustments 0.4 Earnings of non-controlled entities: Proportionate share of earnings 105.0 Amortization of excess investment and capitalized interest (1.3) Earnings of non-controlled entities 103.7 Less: Distributions from operations of non-controlled entities 122.0 Distributions from returns of investments in non-controlled entities 1.9 Investments at September 30, 2022 $ 961.9

Inventory (Tables)

Inventory (Tables)	9 Months Ended
	Sep. 30, 2022
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventory at December 31, 2021 and September 30, 2022 was as follows (in millions): December 31, 2021 September 30, Refined products $ 138.0 $ 104.8 Transmix 72.4 100.0 LPGs 42.0 104.8 Crude oil 25.4 35.5 Additives 3.3 3.7 Total inventory $ 281.1 $ 348.8

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Consolidated Debt	Long-term debt at December 31, 2021 and September 30, 2022 was as follows (in millions): December 31, September 30, Commercial paper $ 108.0 $ 29.0 3.20% Notes due 2025 250.0 250.0 5.00% Notes due 2026 650.0 650.0 3.25% Notes due 2030 500.0 500.0 6.40% Notes due 2037 250.0 250.0 4.20% Notes due 2042 250.0 250.0 5.15% Notes due 2043 550.0 550.0 4.20% Notes due 2045 250.0 250.0 4.25% Notes due 2046 500.0 500.0 4.20% Notes due 2047 500.0 500.0 4.85% Notes due 2049 500.0 500.0 3.95% Notes due 2050 800.0 800.0 Face value of long-term debt 5,108.0 5,029.0 Unamortized debt issuance costs (1) (37.8) (36.0) Net unamortized debt premium (1) 18.6 18.4 Long-term debt, net $ 5,088.8 $ 5,011.4 (1) Debt issuance costs, note discounts and premiums are being amortized or accreted to the applicable notes over the respective lives of those notes.

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Operating Leases	The following tables provide information about our third-party and Seabrook operating leases (in millions): Three Months Ended September 30, 2021 Three Months Ended September 30, 2022 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 6.4 $ 4.2 $ 10.6 $ 6.3 $ 4.8 $ 11.1 Nine Months Ended September 30, 2021 Nine Months Ended September 30, 2022 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 20.3 $ 15.1 $ 35.4 $ 18.8 $ 13.5 $ 32.3 December 31, 2021 September 30, 2022 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Current lease liability $ 17.8 $ 8.0 $ 25.8 $ 21.1 $ 9.7 $ 30.8 Long-term lease liability $ 102.8 $ 44.5 $ 147.3 $ 84.5 $ 36.8 $ 121.3 Right-of-use asset $ 121.7 $ 52.5 $ 174.2 $ 109.1 $ 46.6 $ 155.7

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Schedule of Consolidated Net Periodic Benefit Costs	Net periodic benefit expense for the three and nine months ended September 30, 2021 and 2022 were as follows (in millions): Three Months Ended Three Months Ended September 30, 2021 September 30, 2022 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 7.0 $ — $ 6.9 $ 0.1 Interest cost 2.3 0.1 2.7 0.1 Expected return on plan assets (2.9) — (3.2) — Amortization of actuarial loss 1.2 0.2 1.0 0.1 Settlement cost 1.3 — 1.5 — Net periodic benefit cost $ 8.9 $ 0.3 $ 8.9 $ 0.3 Nine Months Ended Nine Months Ended September 30, 2021 September 30, 2022 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 21.3 $ 0.2 $ 20.6 $ 0.2 Interest cost 7.0 0.3 8.0 0.3 Expected return on plan assets (8.9) — (9.7) — Amortization of prior service credit (0.1) — (0.1) — Amortization of actuarial loss 4.0 0.5 3.2 0.3 Settlement cost 2.8 — 1.5 — Net periodic benefit cost $ 26.1 $ 1.0 $ 23.5 $ 0.8
Schedule of Amounts Recognized in Other Comprehensive Loss	The changes in accumulated other comprehensive loss (“AOCL”) related to employee benefit plan assets and benefit obligations for the three and nine months ended September 30, 2021 and 2022 were as follows (in millions): Three Months Ended Three Months Ended September 30, 2021 September 30, 2022 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (101.2) $ (11.7) $ (92.0) $ (8.1) Net actuarial gain (loss) — — 5.1 — Recognition of prior service credit amortization in income — — — — Recognition of actuarial loss amortization in income 1.2 0.2 1.0 0.1 Recognition of settlement cost in income 1.3 — 1.5 — Ending balance $ (98.7) $ (11.5) $ (84.4) $ (8.0) Nine Months Ended Nine Months Ended September 30, 2021 September 30, 2022 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (117.8) $ (10.4) $ (92.8) $ (10.7) Net actuarial gain (loss) 12.4 (1.6) 3.8 2.4 Recognition of prior service credit amortization in income (0.1) — (0.1) — Recognition of actuarial loss amortization in income 4.0 0.5 3.2 0.3 Recognition of settlement cost in income 2.8 — 1.5 — Ending balance $ (98.7) $ (11.5) $ (84.4) $ (8.0)

Long-Term Incentive Plan (Table

Long-Term Incentive Plan (Tables)	9 Months Ended
	Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Equity-Based Incentive Compensation Expense	Equity-based incentive compensation expense for the three and nine months ended September 30, 2021 and 2022, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2021 2022 2021 2022 Performance-based awards $ 3.0 $ 3.3 $ 7.9 $ 15.9 Time-based awards 2.6 2.6 7.8 12.9 Total $ 5.6 $ 5.9 $ 15.7 $ 28.8

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of NYMEX Contracts And Butane Price Swap Purchase Agreements	Our open futures contracts at September 30, 2022 were as follows: Type of Contract/Accounting Methodology Product Represented by the Contract and Associated Barrels Maturity Dates Commodity derivatives contract - Economic hedges 5.3 million barrels of refined products and crude oil Between October 2022 and December 2023 Commodity derivatives contract - Economic hedges 1.6 million barrels of gas liquids Between October 2022 and December 2023
Derivatives and Offset Amounts	A schedule of the derivative amounts we have offset and the deposit amounts we could offset under master netting arrangements are provided below as of December 31, 2021 and September 30, 2022 (in millions): Description Gross Amounts of Recognized Assets (Liabilities) Gross Amounts of Assets (Liabilities) Offset in the Consolidated Balance Sheets Net Amounts of Assets (Liabilities) Presented in the Consolidated Balance Sheets Margin Deposit Amounts Not Offset in the Consolidated Balance Sheets Net Asset Amount (1) As of December 31, 2021 $ (22.3) $ 5.1 $ (17.2) $ 46.3 $ 29.1 As of September 30, 2022 $ 67.7 $ (32.5) $ 35.2 $ (12.5) $ 22.7 (1) Amount represents the maximum loss we would incur if all of our counterparties failed to perform on their derivative contracts.
Derivatives and Hedging-Cash Flow Hedges	The changes in derivative activity included in AOCL for the three and nine months ended September 30, 2021 and 2022 were as follows (in millions): Three Months Ended Nine Months Ended September 30, September 30, Derivative Losses Included in AOCL 2021 2022 2021 2022 Beginning balance $ (53.2) $ (49.7) $ (55.0) $ (51.5) Reclassification of net loss on cash flow hedges to income 0.9 0.9 2.7 2.7 Ending balance $ (52.3) $ (48.8) $ (52.3) $ (48.8) The following is a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2021 and 2022 of derivatives that were designated as cash flow hedges (in millions): Interest Rate Contracts Location of Loss Reclassified from AOCL into Income Amount of Loss Reclassified from AOCL into Income Three Months Ended September 30, 2021 and 2022 Interest expense $ (0.9) Nine Months Ended September 30, 2021 and 2022 Interest expense $ (2.7)
Derivatives and Hedging-Overall-Subsequent Measurement	The following table provides a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2021 and 2022 of derivatives that were not designated as hedging instruments (in millions): Amount of Gain (Loss) Recognized on Derivatives Three Months Ended Nine Months Ended Location of Gain (Loss) September 30, September 30, Derivative Instrument 2021 2022 2021 2022 Commodity derivatives contracts Product sales revenue $ (29.7) $ 110.5 $ (122.8) $ (94.9) Commodity derivatives contracts Cost of product sales 19.3 (21.6) 26.9 (20.4) Basis derivative agreement Other operating income (expense) (1.7) — (3.6) (2.1) Total $ (12.1) $ 88.9 $ (99.5) $ (117.4)
Derivatives and Hedging-Designated	The following tables provide a summary of the fair value of derivatives , which are presented on a net basis in our consolidated balance sheets, that were not designated as hedging instruments as of December 31, 2021 and September 30, 2022 (in millions): December 31, 2021 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Commodity derivatives contracts Commodity derivatives contracts, net $ 5.1 Commodity derivatives contracts, net $ 22.3 Basis derivative agreement Other current assets — Other current liabilities 1.5 Total $ 5.1 Total $ 23.8 September 30, 2022 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Commodity derivatives contracts Commodity derivatives contracts, net $ 64.0 Commodity derivatives contracts, net $ 30.0 Commodity derivatives contracts Other noncurrent assets 3.7 Other noncurrent liabilities 2.5 Total $ 67.7 Total $ 32.5

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables summarize the carrying amounts, fair values and fair value measurements recorded or disclosed as of December 31, 2021 and September 30, 2022 based on the three levels established by ASC 820, Fair Value Measurements and Disclosures (in millions): Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (17.2) $ (17.2) $ (18.6) $ 1.4 $ — Basis derivative agreement $ (1.5) $ (1.5) $ — $ (1.5) $ — Long-term receivables $ 10.1 $ 10.1 $ — $ — $ 10.1 Contractual obligations $ (9.8) $ (9.8) $ — $ — $ (9.8) Debt $ (5,088.8) $ (5,711.5) $ — $ (5,711.5) $ — Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ 35.2 $ 35.2 $ 60.6 $ (25.4) $ — Long-term receivables $ 8.8 $ 8.8 $ — $ — $ 8.8 Contractual obligations $ (9.9) $ (9.9) $ — $ — $ (9.9) Debt $ (5,011.4) $ (4,142.2) $ — $ (4,142.2) $ —

Partners' Capital and Distrib_2

Partners' Capital and Distributions (Tables)	9 Months Ended
	Sep. 30, 2022
Partners' Capital [Abstract]
Schedule of Capital Units	The following table details the changes in the number of our common units outstanding from December 31, 2021 through September 30, 2022: Common units outstanding on December 31, 2021 212,387,990 Units repurchased during 2022 (7,676,262) January 2022—Settlement of employee LTIP awards 200,949 During 2022—Other (1) 23,400 Common units outstanding on September 30, 2022 204,936,077 (1) Common units issued to settle the equity-based retainers paid to certain independent directors of our board.
Schedule of Distributions	Distributions we paid during 2021 and 2022 were as follows (in millions, except per unit amounts): Payment Date Per Unit Total Distribution 2/12/2021 $ 1.0275 $ 229.4 5/14/2021 1.0275 229.0 8/13/2021 1.0275 226.6 Through 09/30/2021 3.0825 685.0 11/12/2021 1.0375 221.4 Total $ 4.1200 $ 906.4 2/14/2022 $ 1.0375 $ 220.6 5/13/2022 1.0375 219.5 8/12/2022 1.0375 215.2 Through 09/30/2022 3.1125 655.3 11/14/2022 (1) 1.0475 214.7 Total $ 4.1600 $ 870.0 (1) Our board declared this distribution in October 2022 to be paid on November 14, 2022 to unitholders of record at the close of business on November 7, 2022. The estimated total distribution is based upon the number of common units currently outstanding.

Organization, Description of _3

Organization, Description of Business and Basis of Presentation (Narrative) (Details) barrel in Millions, $ in Millions	Jun. 08, 2022 USD ($) terminal	Sep. 30, 2022 barrel terminal mi
Independent Terminals Network
Organization and Description of Business [Line Items]
Proceeds from Sale of Property Held-for-sale | $	$ 446.2
Independent Terminals Network | Discontinued Operations, Held-for-sale
Organization and Description of Business [Line Items]
Number of independent terminals | terminal	26
Refined Products
Organization and Description of Business [Line Items]
Pipeline length | mi		9,800
Number of pipeline terminals | terminal		54
Number of marine terminals | terminal		2
Number of marine terminals, owned through joint venture | terminal		1
Crude Oil
Organization and Description of Business [Line Items]
Pipeline length | mi		2,200
Storage capacity | barrel		39
Contracted storage | barrel		29
Pipeline length - wholly owned | mi		1,000
Storage capacity - wholly owned | barrel		31
Contracted storage - wholly owned | barrel		25

Discontinued Operations - Dispo

Discontinued Operations - Disposal Groups, Including Discontinued Operations (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 09, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	$ 0	$ 27,700,000	$ 51,100,000	$ 99,100,000
Costs and expenses:
Operating	0	2,900,000	8,000,000	10,100,000
Cost of product sales	0	8,800,000	28,800,000	40,600,000
Depreciation, amortization and impairment	0	100,000	0	7,100,000
General and administrative	0	600,000	1,100,000	1,900,000
Total costs and expenses	0	12,400,000	37,900,000	59,700,000
Gain on disposition of assets	(1,600,000)	0	(164,000,000)	0
Income from discontinued operations (including gain on disposition of assets of $164.0 million in 2022)	1,600,000	15,300,000	177,200,000	39,400,000
Assets:
Trade accounts receivable						$ 6,300,000
Inventory						17,000,000
Net property, plant and equipment						272,000,000
Goodwill						2,700,000
Other assets						1,500,000
Total assets classified as held for sale					$ 0	299,500,000
Liabilities:
Accounts payable						3,700,000
Accrued product liabilities						8,400,000
Other liabilities						3,700,000
Total liabilities classified as held for sale					$ 0	$ 15,800,000
Transportation and terminals revenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	0	13,200,000	21,100,000	40,000,000
Product sales revenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	$ 0	$ 14,500,000	$ 30,000,000	$ 59,100,000

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details)	9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jun. 09, 2022 USD ($)	Jun. 08, 2022 terminal	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale and disposition of assets	$ 300,000	$ 272,000,000
Disposal Group, Including Discontinued Operation, Assets			$ 0		$ 299,500,000
Independent Terminals Network | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of independent terminals | terminal				26

Segment Disclosures - Schedule

Segment Disclosures - Schedule Of Business Segment Reporting Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Total revenue	$ 876.1	$ 639.1	$ 2,339.4	$ 1,923.8
Operating expense	138.2	146.5	442.5	422.9
Cost of product sales	268.6	145.9	794.3	488.6
Other operating (income) expense	(1.2)	(2.6)	(2.2)	(4.1)
Earnings of non-controlled entities	(41.8)	(36.4)	(103.7)	(116.1)
Operating margin	512.3	385.7	1,208.5	1,132.5
Depreciation, amortization and impairment	57.9	61.5	174.4	168.4
G&A expense	58	46.5	177.7	148.6
Operating profit	396.4	277.7	856.4	815.5
Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	689.9	504.5	1,884.7	1,477.3
Operating expense	98.3	114.5	322.8	314.2
Cost of product sales	222.2	128.4	715.9	394.3
Other operating (income) expense	(1.2)	(2.8)	(4.3)	(6.3)
Earnings of non-controlled entities	(13.3)	(8.1)	(15)	(25.5)
Operating margin	383.9	272.5	865.3	800.6
Depreciation, amortization and impairment	39.6	42.6	118.4	112.8
G&A expense	41.8	33.4	127.8	106.7
Operating profit	302.5	196.5	619.1	581.1
Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	187.6	136	458.7	450.9
Operating expense	42.8	35.1	128.2	118.1
Cost of product sales	46.4	17.5	78.4	94.3
Other operating (income) expense	0	0.2	2.1	2.2
Earnings of non-controlled entities	(28.5)	(28.3)	(88.7)	(90.6)
Operating margin	126.9	111.5	338.7	326.9
Depreciation, amortization and impairment	16.8	17.2	51.5	50.6
G&A expense	16.2	13.1	49.9	41.9
Operating profit	93.9	81.2	237.3	234.4
Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	(1.4)	(1.4)	(4)	(4.4)
Operating expense	(2.9)	(3.1)	(8.5)	(9.4)
Cost of product sales	0	0	0	0
Other operating (income) expense	0	0	0	0
Earnings of non-controlled entities	0	0	0	0
Operating margin	1.5	1.7	4.5	5
Depreciation, amortization and impairment	1.5	1.7	4.5	5
G&A expense	0	0	0	0
Operating profit	0	0	0	0
Transportation and terminals revenue
Segment Reporting Information [Line Items]
Total revenue	482.5	464.9	1,374.7	1,332.3
Transportation and terminals revenue | Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	370.1	349.4	1,028.8	984.9
Transportation and terminals revenue | Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	113.8	116.9	349.9	351.8
Transportation and terminals revenue | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	(1.4)	(1.4)	(4)	(4.4)
Product sales revenue
Segment Reporting Information [Line Items]
Total revenue	388.2	168.9	948	575.6
Product sales revenue | Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	318.3	153.5	850.9	487.6
Product sales revenue | Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	69.9	15.4	97.1	88
Product sales revenue | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	0	0	0	0
Affiliate management fee revenue
Segment Reporting Information [Line Items]
Total revenue	5.4	5.3	16.7	15.9
Affiliate management fee revenue | Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	1.5	1.6	5	4.8
Affiliate management fee revenue | Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	3.9	3.7	11.7	11.1
Affiliate management fee revenue | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	$ 0	$ 0	$ 0	$ 0

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 876.1	$ 639.1	$ 2,339.4	$ 1,923.8
Lease revenue	(27.8)	(24.5)	(77)	(68.8)
(Gains) losses from futures contracts included in product sales revenue	(110.5)	29.7	94.9	122.8
Affiliate management fee revenue	(5.4)	(5.3)	(16.7)	(15.9)
Total revenue from contracts with customers under ASC 606	732.4	639	2,340.6	1,961.9
Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Total revenue	482.5	464.9	1,374.7	1,332.3
Product sales revenue
Disaggregation of Revenue [Line Items]
Total revenue	388.2	168.9	948	575.6
Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Total revenue	5.4	5.3	16.7	15.9
Operating Segments | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	689.9	504.5	1,884.7	1,477.3
Lease revenue	(7.8)	(4.9)	(20.1)	(13)
(Gains) losses from futures contracts included in product sales revenue	(104.1)	27	90.3	108.6
Affiliate management fee revenue	(1.5)	(1.6)	(5)	(4.8)
Total revenue from contracts with customers under ASC 606	576.5	525	1,949.9	1,568.1
Operating Segments | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	187.6	136	458.7	450.9
Lease revenue	(20)	(19.6)	(56.9)	(55.8)
(Gains) losses from futures contracts included in product sales revenue	(6.4)	2.7	4.6	14.2
Affiliate management fee revenue	(3.9)	(3.7)	(11.7)	(11.1)
Total revenue from contracts with customers under ASC 606	157.3	115.4	394.7	398.2
Operating Segments | Transportation and terminals revenue | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	370.1	349.4	1,028.8	984.9
Operating Segments | Transportation and terminals revenue | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	113.8	116.9	349.9	351.8
Operating Segments | Product sales revenue | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	318.3	153.5	850.9	487.6
Operating Segments | Product sales revenue | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	69.9	15.4	97.1	88
Operating Segments | Affiliate management fee revenue | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	1.5	1.6	5	4.8
Operating Segments | Affiliate management fee revenue | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	3.9	3.7	11.7	11.1
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Total revenue	(1.4)	(1.4)	(4)	(4.4)
Lease revenue	0	0	0	0
(Gains) losses from futures contracts included in product sales revenue	0	0	0	0
Affiliate management fee revenue	0	0	0	0
Total revenue from contracts with customers under ASC 606	(1.4)	(1.4)	(4)	(4.4)
Intersegment Eliminations | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Total revenue	(1.4)	(1.4)	(4)	(4.4)
Intersegment Eliminations | Product sales revenue
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Intersegment Eliminations | Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Transferred over Time | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Total revenue	482.5	464.9	1,374.7	1,332.3
Transferred over Time | Transportation
Disaggregation of Revenue [Line Items]
Total revenue	316.3	299.8	896	840.1
Transferred over Time | Terminalling
Disaggregation of Revenue [Line Items]
Total revenue	44.8	29.7	116.3	86.8
Transferred over Time | Storage
Disaggregation of Revenue [Line Items]
Total revenue	59.5	69.1	186	218.7
Transferred over Time | Ancillary services
Disaggregation of Revenue [Line Items]
Total revenue	34.1	41.8	99.4	117.9
Transferred over Time | Lease revenue
Disaggregation of Revenue [Line Items]
Total revenue	27.8	24.5	77	68.8
Transferred over Time | Operating Segments | Transportation and terminals revenue | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	370.1	349.4	1,028.8	984.9
Transferred over Time | Operating Segments | Transportation and terminals revenue | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	113.8	116.9	349.9	351.8
Transferred over Time | Operating Segments | Transportation | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	266.4	241.7	729	667.2
Transferred over Time | Operating Segments | Transportation | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	49.9	58.1	167	172.9
Transferred over Time | Operating Segments | Terminalling | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	28.6	26.4	81	74.2
Transferred over Time | Operating Segments | Terminalling | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	16.2	3.3	35.3	12.6
Transferred over Time | Operating Segments | Storage | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	36.5	42.3	114	135.9
Transferred over Time | Operating Segments | Storage | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	24.4	28.2	76	87.2
Transferred over Time | Operating Segments | Ancillary services | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	30.8	34.1	84.7	94.6
Transferred over Time | Operating Segments | Ancillary services | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	3.3	7.7	14.7	23.3
Transferred over Time | Operating Segments | Lease revenue | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	7.8	4.9	20.1	13
Transferred over Time | Operating Segments | Lease revenue | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	20	19.6	56.9	55.8
Transferred over Time | Intersegment Eliminations | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Total revenue	(1.4)	(1.4)	(4)	(4.4)
Transferred over Time | Intersegment Eliminations | Transportation
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Transferred over Time | Intersegment Eliminations | Terminalling
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Transferred over Time | Intersegment Eliminations | Storage
Disaggregation of Revenue [Line Items]
Total revenue	(1.4)	(1.4)	(4)	(4.4)
Transferred over Time | Intersegment Eliminations | Ancillary services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Transferred over Time | Intersegment Eliminations | Lease revenue
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Transferred at Point in Time | Product sales revenue
Disaggregation of Revenue [Line Items]
Total revenue	388.2	168.9	948	575.6
Transferred at Point in Time | Operating Segments | Product sales revenue | Refined Products
Disaggregation of Revenue [Line Items]
Total revenue	318.3	153.5	850.9	487.6
Transferred at Point in Time | Operating Segments | Product sales revenue | Crude Oil
Disaggregation of Revenue [Line Items]
Total revenue	69.9	15.4	97.1	88
Transferred at Point in Time | Intersegment Eliminations | Product sales revenue
Disaggregation of Revenue [Line Items]
Total revenue	$ 0	$ 0	$ 0	$ 0

Revenue - Assets and Liabilitie

Revenue - Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Accounts receivable from contracts with customers	$ 177.8	$ 134.8
Contract assets	11	12.5
Contract liabilities	$ 111.7	$ 100.1

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Deferred revenue, revenue recognized	$ 1.5	$ 70.5

Revenue - Performance Obligatio

Revenue - Performance Obligations in Next 12 Months (Details) $ in Millions	Sep. 30, 2022 USD ($)
Segment Reporting Information [Line Items]
Revenue, remaining performance obligation	$ 2,857.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Segment Reporting Information [Line Items]
Revenue, remaining performance obligation	$ 583.4
Remaining terms	12 months
Refined Products
Segment Reporting Information [Line Items]
Revenue, remaining performance obligation	$ 1,941.8
Refined Products | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Segment Reporting Information [Line Items]
Revenue, remaining performance obligation	345.7
Crude Oil
Segment Reporting Information [Line Items]
Revenue, remaining performance obligation	916.1
Crude Oil | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Segment Reporting Information [Line Items]
Revenue, remaining performance obligation	$ 237.7
Minimum | Refined Products | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Segment Reporting Information [Line Items]
Remaining terms	1 year
Minimum | Crude Oil | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Segment Reporting Information [Line Items]
Remaining terms	1 year
Maximum | Refined Products | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Segment Reporting Information [Line Items]
Remaining terms	16 years
Maximum | Crude Oil | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Segment Reporting Information [Line Items]
Remaining terms	9 years

Investments in Non-Controlled_3

Investments in Non-Controlled Entities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Total revenue	$ 876,100	$ 639,100	$ 2,339,400	$ 1,923,800
Operating	138,200	146,500	442,500	422,900
Other operating income (expense)	1,200	2,600	2,200	4,100
Trade accounts receivable	179,100		179,100		$ 135,200
Other accounts receivable	44,300		44,300		34,600
Change in Equity Method Investments [Roll Forward]
Investments, beginning balance			980,800
Additional investment			900
Other adjustments			400
Proportionate share of earnings			105,000
Amortization of excess investment and capitalized interest			(1,300)
Earnings of non-controlled entities	41,800	36,400	103,700	116,100
Distributions from operations of non-controlled entities			122,000	140,600
Distributions from returns of investments in non-controlled entities			1,900	0
Investments, ending balance	$ 961,900		$ 961,900
BridgeTex
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	30%		30%
Double Eagle
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50%		50%
HoustonLink
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50%		50%
MVP
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	25%		25%
Powder Springs Logistics, LLC
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50%		50%
Saddlehorn
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	30%		30%
Seabrook
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50%		50%
Texas Frontera LLC
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50%		50%
Transportation and terminals revenue
Schedule of Equity Method Investments [Line Items]
Total revenue	$ 482,500	464,900	$ 1,374,700	1,332,300
Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Cost reimbursements	2,200	900	6,000	2,100
Equity Method Investee | BridgeTex
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable	4,100		4,100		1,200
Other accounts receivable	0		0		0
Other Accounts Payable	0		0		300
Equity Method Investee | Double Eagle
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable	200		200		200
Other accounts receivable	0		0		0
Other Accounts Payable	0		0		0
Equity Method Investee | HoustonLink
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable					0
Other accounts receivable					0
Other Accounts Payable					200
Equity Method Investee | MVP
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable	0		0		0
Other accounts receivable	1,300		1,300		600
Other Accounts Payable	3,700		3,700		2,200
Equity Method Investee | Saddlehorn
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable	0		0		0
Other accounts receivable	200		200		200
Other Accounts Payable	0		0		0
Equity Method Investee | Seabrook
Schedule of Equity Method Investments [Line Items]
Operating	4,800	4,200	13,500	15,100
Other operating income (expense)	0	0	0	400
Trade accounts receivable	300		300		0
Other accounts receivable	0		0		100
Other Accounts Payable	3,100		3,100		$ 3,200
Equity Method Investee | Transportation and terminals revenue | BridgeTex
Schedule of Equity Method Investments [Line Items]
Total revenue	13,000	10,700	35,600	34,400
Equity Method Investee | Transportation and terminals revenue | Double Eagle
Schedule of Equity Method Investments [Line Items]
Total revenue	700	700	1,700	2,500
Equity Method Investee | Transportation and terminals revenue | Saddlehorn
Schedule of Equity Method Investments [Line Items]
Total revenue	$ 600	$ 600	$ 1,800	$ 1,800

Inventory (Details)

Inventory (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Refined products	$ 104.8	$ 138
Transmix	100	72.4
LPGs	104.8	42
Crude oil	35.5	25.4
Additives	3.7	3.3
Total inventory	$ 348.8	$ 281.1

Debt - Consolidated Debt (Detai

Debt - Consolidated Debt (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Face value of long-term debt	$ 5,029	$ 5,108
Unamortized debt issuance costs	(36)	(37.8)
Net unamortized debt premium	18.4	18.6
Long-term debt, net	5,011.4	5,088.8
Commercial paper
Debt Instrument [Line Items]
Face value of long-term debt	$ 29	108
3.20% Notes due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.20%
Face value of long-term debt	$ 250	250
5.00% Notes due 2026
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	5%
Face value of long-term debt	$ 650	650
3.25% Notes due 2030
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.25%
Face value of long-term debt	$ 500	500
6.40% Notes due 2037
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.40%
Face value of long-term debt	$ 250	250
4.20% Notes due 2042
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	4.20%
Face value of long-term debt	$ 250	250
5.15% Notes due 2043
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	5.15%
Face value of long-term debt	$ 550	550
4.20% Notes due 2045
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	4.20%
Face value of long-term debt	$ 250	250
4.25% Notes due 2046
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	4.25%
Face value of long-term debt	$ 500	500
4.20% Notes due 2047
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	4.20%
Face value of long-term debt	$ 500	500
4.85% Notes due 2049
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	4.85%
Face value of long-term debt	$ 500	500
3.95% Notes due 2050
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.95%
Face value of long-term debt	$ 800	$ 800

Debt - Narrative (Details)

Debt - Narrative (Details)	9 Months Ended
	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Face value of long-term debt	$ 5,029,000,000	$ 5,108,000,000
Maximum
Debt Instrument [Line Items]
Debt to EBITDA ratio	5
Commercial paper
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 1,000,000,000
Face value of long-term debt	$ 29,000,000	108,000,000
Weighted average interest rate	1%
Commercial paper | Maximum
Debt Instrument [Line Items]
Debt instrument, term	397 days
Senior Notes | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 1,000,000,000
Unused commitment fee	0.125%
Long term debt	$ 0	0
Obligation for letters of credit	$ 3,500,000	$ 3,500,000
Senior Notes | Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Unused commitment fee	0.075%
Senior Notes | Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Unused commitment fee	0.20%
London Interbank Offered Rate (LIBOR) | Senior Notes | Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.875%
London Interbank Offered Rate (LIBOR) | Senior Notes | Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.50%

Leases (Details)

Leases (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Total lease expense	$ 11.1	$ 10.6	$ 32.3	$ 35.4
Current lease liability	30.8		30.8		$ 25.8
Long-term lease liability	121.3		121.3		147.3
Right-of-use asset	155.7		155.7		174.2
Third-Party Leases
Related Party Transaction [Line Items]
Total lease expense	6.3	6.4	18.8	20.3
Current lease liability	21.1		21.1		17.8
Long-term lease liability	84.5		84.5		102.8
Right-of-use asset	109.1		109.1		121.7
Seabrook | Equity Method Investee
Related Party Transaction [Line Items]
Total lease expense	4.8	$ 4.2	13.5	$ 15.1
Current lease liability	9.7		9.7		8
Long-term lease liability	36.8		36.8		44.5
Right-of-use asset	$ 46.6		$ 46.6		$ 52.5

Employee Benefit Plans - Narrat

Employee Benefit Plans - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) plan	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) plan	Sep. 30, 2021 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan cost | $	$ 2.7	$ 2.7	$ 9.3	$ 8.1
Number of sponsored pension plans | plan	2		2
Number of sponsored pension plans, non-union employees | plan	1		1
Number of sponsored pension plans, union employees | plan	1		1
Pension Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected future employer contributions | $	$ 39		$ 39
Other  Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected future employer contributions | $	$ 0.9		$ 0.9

Employee Benefit Plans - Schedu

Employee Benefit Plans - Schedule Of Consolidated Net Periodic Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Pension Benefits
Components of net periodic benefit costs:
Service cost	$ 6.9	$ 7	$ 20.6	$ 21.3
Interest cost	2.7	2.3	8	7
Expected return on plan assets	(3.2)	(2.9)	(9.7)	(8.9)
Amortization of prior service credit			(0.1)	(0.1)
Amortization of actuarial loss	1	1.2	3.2	4
Settlement cost	1.5	1.3	1.5	2.8
Net periodic benefit cost	8.9	8.9	23.5	26.1
Other  Postretirement Benefits
Components of net periodic benefit costs:
Service cost	0.1	0	0.2	0.2
Interest cost	0.1	0.1	0.3	0.3
Expected return on plan assets	0	0	0	0
Amortization of prior service credit			0	0
Amortization of actuarial loss	0.1	0.2	0.3	0.5
Settlement cost	0	0	0	0
Net periodic benefit cost	$ 0.3	$ 0.3	$ 0.8	$ 1

Employee Benefit Plans - Sche_2

Employee Benefit Plans - Schedule of Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Changes in AOCL [Roll Forward]
Beginning balance	$ (1,759.4)	$ (2,285.8)	$ (1,899.8)	$ (2,303.8)
Net actuarial gain	5.1	0	6.2	10.8
Recognition of prior service credit amortization in income	0	0	(0.1)	(0.1)
Recognition of actuarial loss amortization in income	1.1	1.4	3.5	4.5
Recognition of settlement cost in income	1.5	1.3	1.5	2.8
Ending balance	(1,750.9)	(1,914)	(1,750.9)	(1,914)
Pension Benefits
Changes in AOCL [Roll Forward]
Net actuarial gain	5.1	0	3.8	12.4
Recognition of prior service credit amortization in income	0	0	(0.1)	(0.1)
Recognition of actuarial loss amortization in income	1	1.2	3.2	4
Recognition of settlement cost in income	1.5	1.3	1.5	2.8
Other  Postretirement Benefits
Changes in AOCL [Roll Forward]
Net actuarial gain	0	0	2.4	(1.6)
Recognition of prior service credit amortization in income	0	0	0	0
Recognition of actuarial loss amortization in income	0.1	0.2	0.3	0.5
Recognition of settlement cost in income	0	0	0	0
Accumulated Other Comprehensive Loss | Pension Benefits
Changes in AOCL [Roll Forward]
Beginning balance	(92)	(101.2)	(92.8)	(117.8)
Ending balance	(84.4)	(98.7)	(84.4)	(98.7)
Accumulated Other Comprehensive Loss | Other  Postretirement Benefits
Changes in AOCL [Roll Forward]
Beginning balance	(8.1)	(11.7)	(10.7)	(10.4)
Ending balance	$ (8)	$ (11.5)	$ (8)	$ (11.5)

Long-Term Incentive Plan - Narr

Long-Term Incentive Plan - Narrative (Details) - shares	Feb. 09, 2022	Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Limited partners' capital account, units authorized for issuance (in shares)		13,700,000
Limited partner unitholders, units remaining available (in shares)		1,800,000
Share-based compensation arrangement by share-based payment award, grants in period (in shares)	622,986
Vesting period	3 years

Long-Term Incentive Plan - Equi

Long-Term Incentive Plan - Equity-Based Incentive Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	$ 5.9	$ 5.6	$ 28.8	$ 15.7
Performance-based awards
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	3.3	3	15.9	7.9
Time-based awards
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	$ 2.6	$ 2.6	$ 12.9	$ 7.8

Derivative Financial Instrume_3

Derivative Financial Instruments - Schedule Of NYMEX Contracts And Butane Price Swap Purchase Agreements (Details) barrel in Millions	Sep. 30, 2022 barrel
Economic Hedges
Derivative [Line Items]
Nonmonetary notional amount	5.3
Economic Hedges Futures
Derivative [Line Items]
Nonmonetary notional amount	1.6

Derivative Financial Instrume_4

Derivative Financial Instruments - Narrative (Details) $ in Millions	Sep. 30, 2022 USD ($) barrel	Dec. 31, 2021 USD ($)
Derivative [Line Items]
Margin deposits	$ 0.4	$ 46.3
Margin deposit, net	12.5
Cash flow hedge loss to be reclassified within twelve months	(3.5)
Other current assets
Derivative [Line Items]
Margin deposits	0.4
Other current liabilities
Derivative [Line Items]
Margin deposits	$ 12.9
Energy Related Derivative
Derivative [Line Items]
Nonmonetary notional amount | barrel	30,000
Net Amounts of Assets (Liabilities) Presented in the Consolidated Balance Sheets		$ 1.5

Derivative Financial Instrume_5

Derivative Financial Instruments - Schedule of Derivative Offset Amounts (Details) - Exchange Traded - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivative [Line Items]
Gross Amounts of Recognized Assets (Liabilities)		$ (22.3)
Gross Amounts of Recognized Assets (Liabilities)	$ 67.7
Gross Amounts of Assets (Liabilities) Offset in the Consolidated Balance Sheets	32.5	5.1
Net Amounts of Assets (Liabilities) Presented in the Consolidated Balance Sheets		(17.2)
Net Amounts of Assets (Liabilities) Presented in the Consolidated Balance Sheets	35.2
Margin Deposit Amounts Not Offset in the Consolidated Balance Sheets		46.3
Margin Deposit Amounts Not Offset in the Consolidated Balance Sheets	(12.5)
Net Asset Amount	$ 22.7	$ 29.1

Derivative Financial Instrume_6

Derivative Financial Instruments - Derivatives and Hedging-Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Gains Included in AOCI [Roll Forward]
Beginning balance	$ 1,759.4	$ 2,285.8	$ 1,899.8	$ 2,303.8
Reclassification of net loss on cash flow hedges to income	0.9	0.9	2.7	2.7
Ending balance	1,750.9	1,914	1,750.9	1,914
Derivative Losses Included in AOCL
Derivative Gains Included in AOCI [Roll Forward]
Beginning balance	(49.7)	(53.2)	(51.5)	(55)
Ending balance	$ (48.8)	$ (52.3)	$ (48.8)	$ (52.3)

Derivative Financial Instrume_7

Derivative Financial Instruments - Derivatives and Hedging Effect on Consolidated Statements of Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative [Line Items]
Reclassification of net loss on cash flow hedges to income	$ (0.9)	$ (0.9)	$ (2.7)	$ (2.7)
Interest Rate Contract | Cash Flow Hedging | Designated as Hedging Instrument | Interest Expense
Derivative [Line Items]
Reclassification of net loss on cash flow hedges to income	$ (0.9)	$ (0.9)	$ (2.7)	$ (2.7)

Derivative Financial Instrume_8

Derivative Financial Instruments - Derivatives And Hedging-Overall-Subsequent Measurement (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other operating income (expense)	Other operating income (expense)	Other operating income (expense)	Other operating income (expense)
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	$ 88.9	$ (12.1)	$ (117.4)	$ (99.5)
Not Designated as Hedging Instrument | Commodity Contract | Product sales revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	110.5	(29.7)	(94.9)	(122.8)
Not Designated as Hedging Instrument | Commodity Contract | Cost of product sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	(21.6)	19.3	(20.4)	26.9
Not Designated as Hedging Instrument | Energy Related Derivative
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	$ 0	$ (1.7)	$ (2.1)	$ (3.6)

Derivative Financial Instrume_9

Derivative Financial Instruments - Derivatives and Hedging - Designated (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 67,700	$ 5,100
Derivative liability, fair value	32,500	23,800
Commodity Contract | Other current assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	64,000	5,100
Commodity Contract | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	30,000	22,300
Commodity Contract | Other Noncurrent Assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	3,700
Commodity Contract | Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$ 2,500
Energy Related Derivative | Other current assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value		0
Energy Related Derivative | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value		$ 1,500

Fair Value - Narrative (Details

Fair Value - Narrative (Details)	3 Months Ended	9 Months Ended
	Mar. 31, 2020 terminal	Sep. 30, 2022 barrel terminal
Derivative [Line Items]
Number of marine terminals sold | terminal	3	3
Energy Related Derivative
Derivative [Line Items]
Nonmonetary notional amount | barrel		30,000

Fair Value - Schedule Of Carryi

Fair Value - Schedule Of Carrying Amounts And Fair Values Of Financial Assets/Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Energy Related Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability		$ (1.5)
Fair Value, Inputs, Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	$ 0	0
Contractual obligations	0	0
Debt	0	0
Fair Value, Inputs, Level 1 | Commodity Contract
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability	60.6	(18.6)
Fair Value, Inputs, Level 1 | Energy Related Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability		0
Fair Value, Inputs, Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	0	0
Contractual obligations	0	0
Debt	(4,142.2)	(5,711.5)
Fair Value, Inputs, Level 2 | Commodity Contract
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability	(25.4)	1.4
Fair Value, Inputs, Level 2 | Energy Related Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability		(1.5)
Fair Value, Inputs, Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	8.8	10.1
Contractual obligations	(9.9)	(9.8)
Debt	0	0
Fair Value, Inputs, Level 3 | Commodity Contract
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability	0	0
Fair Value, Inputs, Level 3 | Energy Related Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability		0
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	8.8	10.1
Contractual obligations	(9.9)	(9.8)
Debt	(5,011.4)	(5,088.8)
Carrying Amount | Commodity Contract
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability	35.2	(17.2)
Carrying Amount | Energy Related Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability		(1.5)
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	8.8	10.1
Contractual obligations	(9.9)	(9.8)
Debt	(4,142.2)	(5,711.5)
Fair Value | Commodity Contract
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability	$ 35.2	(17.2)
Fair Value | Energy Related Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liability		$ (1.5)

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions			3 Months Ended			9 Months Ended
	Aug. 31, 2022 USD ($)	Dec. 06, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Mar. 31, 2020 terminal	Sep. 30, 2022 USD ($) terminal	Sep. 30, 2021 USD ($)	Apr. 11, 2022 USD ($)	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss								$ 0.5
Liabilities recognized for estimated environmental costs			$ 9.6			$ 9.6			$ 9.8
Environmental expenses			0.9	$ 0.4		$ 2.4	$ 2.4
Number of marine terminals sold | terminal					3	3
Powder Springs Logistics, LLC
Loss Contingencies [Line Items]
Line of credit facility, maximum borrowing capacity			100			$ 100
Performance Guarantee | Other current liabilities
Loss Contingencies [Line Items]
Contractual obligations			0.4			0.4			0.5
Performance Guarantee | Other Noncurrent Liabilities
Loss Contingencies [Line Items]
Contractual obligations			$ 8.7			$ 8.7			$ 8.9
Powder Springs Logistics, LLC
Loss Contingencies [Line Items]
Interest in equity method investment			50%			50%
Powder Springs Logistics, LLC | Guarantee of Indebtedness of Others | Equity Method Investee
Loss Contingencies [Line Items]
Contractual obligations			$ 0.8			$ 0.8
Interest in equity method investment			50%			50%
Guarantor obligations, maximum exposure, undiscounted			$ 50			$ 50
Settled Litigation | Unfavorable Regulatory Action | Powder Springs Logistics, LLC | Sunoco v.s. Magellan
Loss Contingencies [Line Items]
Damages awarded	$ 10.7	$ 12.2
Maximum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss								$ 1

Related Party Transactions (Det

Related Party Transactions (Details) - Director - Methvin Company - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Other revenues from transactions with related party	$ 16.5	$ 23.2	$ 46.5	$ 51.6
Accounts receivable, related parties, current	$ 6.2		$ 6.2		$ 5.4

Partners' Capital and Distrib_3

Partners' Capital and Distributions - Narrative (Details) $ in Billions	Sep. 30, 2022 USD ($)
Partners' Capital [Abstract]
Stock repurchase program, authorized amount	$ 1.5

Partners' Capital and Distrib_4

Partners' Capital and Distributions - Schedule of Capital Units (Details)	9 Months Ended
	Sep. 30, 2022 shares
Increase (Decrease) in Partners' Capital [Roll Forward]
Limited partner units outstanding, beginning balance (in shares)	212,387,990
Units repurchased (in shares)	(7,676,262)
Limited partner units outstanding, ending balance (in shares)	204,936,077
Management
Increase (Decrease) in Partners' Capital [Roll Forward]
Units issued (in shares)	200,949
Director
Increase (Decrease) in Partners' Capital [Roll Forward]
Units issued (in shares)	23,400

Partners' Capital and Distrib_5

Partners' Capital and Distributions - Schedule Of Distributions (Details) - USD ($) $ / shares in Units, $ in Millions									9 Months Ended		12 Months Ended
	Nov. 14, 2022	Aug. 12, 2022	May 13, 2022	Feb. 14, 2022	Nov. 12, 2021	Aug. 13, 2021	May 14, 2021	Feb. 12, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Distribution Made to Limited Partner [Line Items]
Cash distribution per unit (in dollars per share)		$ 1.0375	$ 1.0375	$ 1.0375	$ 1.0375	$ 1.0275	$ 1.0275	$ 1.0275	$ 3.1125	$ 3.0825		$ 4.1200
Total cash distribution to limited partners		$ 215.2	$ 219.5	$ 220.6	$ 221.4	$ 226.6	$ 229	$ 229.4	$ 655.3	$ 685		$ 906.4
Scenario, Forecast
Distribution Made to Limited Partner [Line Items]
Cash distribution per unit (in dollars per share)	$ 1.0475										$ 4.1600
Total cash distribution to limited partners	$ 214.7										$ 870

Subsequent Events (Details)

Subsequent Events (Details) - $ / shares

Dec. 31, 2022

Nov. 14, 2022

Oct. 31, 2022

Sep. 30, 2022

Aug. 12, 2022

May 13, 2022

Feb. 14, 2022

Dec. 31, 2021

Nov. 12, 2021

Sep. 30, 2021

Aug. 13, 2021

May 14, 2021

Feb. 12, 2021

Subsequent Event [Line Items]

Cash distribution per unit (in dollars per share)

$ 3.1125

$ 1.0375

$ 1.0375

$ 1.0375

$ 4.1200

$ 1.0375

$ 3.0825

$ 1.0275

$ 1.0275

$ 1.0275

Scenario, Forecast

Subsequent Event [Line Items]

Cash distribution per unit (in dollars per share)

$ 4.1600

$ 1.0475

Subsequent Event | Scenario, Forecast

Subsequent Event [Line Items]

Cash distribution per unit (in dollars per share)

$ 1.0475