Magellan Midstream Partners (MMP) 10-K 17 Feb 22 2021 FY Annual report Financial data

Cover Page

Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 16, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
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 Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 10,802,833,233
Entity Common Stock, Shares Outstanding (in shares)		212,393,262
Documents Incorporated by Reference	Portions of the registrant’s Proxy Statement prepared for the solicitation of proxies in connection with the 2022 Annual Meeting of Limited Partners are to be incorporated by reference in Part III of this Form 10-K.
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Central Index Key	0001126975
Current Fiscal Year End Date	--12-31

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Name	Ernst & Young LLP
Auditor Firm ID	42
Auditor Location	Tulsa, Oklahoma

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Total revenue	$ 2,733.1	$ 2,322	$ 2,600.9
Costs and expenses:
Operating	569.7	587.8	616.4
Cost of product sales	780	468.2	560.9
Depreciation, amortization and impairment	227.9	243.1	230.7
General and administrative	206.3	171.2	194.2
Total costs and expenses	1,783.9	1,470.3	1,602.2
Other operating income (expense)	2.8	0.1	3
Earnings of non-controlled entities	154.4	153.3	169
Operating profit	1,106.4	1,005.1	1,170.7
Interest expense	228.1	234.1	221.1
Interest capitalized	(1.7)	(11.3)	(19.3)
Interest income	(0.5)	(1)	(3.3)
Gain on disposition of assets	(75)	(12.9)	(29)
Other (income) expense	20.9	5.2	11.8
Income from continuing operations before provision for income taxes	934.6	791	989.4
Provision for income taxes	2.3	2.9	1.4
Income from continuing operations	932.3	788.1	988
Income from discontinued operations	49.7	28.9	32.8
Net income	$ 982	$ 817	$ 1,020.8
Earnings per common unit - Basic
Continuing operations (in dollars per share)	$ 4.24	$ 3.49	$ 4.32
Discontinued operations (in dollars per share)	0.23	0.13	0.14
Net income per common unit (in dollars per share)	4.47	3.62	4.46
Earnings per common unit - Diluted
Continuing operations (in dollars per share)	4.24	3.49	4.32
Discontinued operations (in dollars per share)	0.23	0.13	0.14
Net income per common unit (in dollars per share)	$ 4.47	$ 3.62	$ 4.46
Weighted average number of common units outstanding used for basic net income per unit calculation (in shares)	219.6	225.5	228.7
Weighted average number of common units outstanding used for diluted net income per unit calculation (in shares)	219.8	225.5	228.8
Transportation and terminals revenue
Total revenue	$ 1,798.9	$ 1,743.3	$ 1,913.9
Product sales revenue
Total revenue	913	557.5	665.8
Affiliate management fee revenue
Total revenue	$ 21.2	$ 21.2	$ 21.2

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 982	$ 817	$ 1,020.8
Derivative activity:
Net loss on cash flow hedges	0	(9.5)	(25.2)
Reclassification of net loss on cash flow hedges to income	3.5	3.5	2.7
Changes in employee benefit plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial gain (loss)	16.3	(23.5)	(27.3)
Curtailment gain	0	1.7	0
Recognition of prior service credit amortization in income	(0.2)	(0.2)	(0.2)
Recognition of actuarial loss amortization in income	6	5.9	5.8
Recognition of settlement cost in income	2.6	1	2.6
Total other comprehensive income (loss)	28.2	(21.1)	(41.6)
Comprehensive income	$ 1,010.2	$ 795.9	$ 979.2

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 2	$ 13
Trade accounts receivable	135.2	103.6
Other accounts receivable	34.6	37.1
Inventory	281.1	158.2
Commodity derivatives contracts, net	1.4	0
Commodity derivatives deposits	46.3	34.2
Assets held for sale	299.5	15.1
Other current assets	43.1	43.9
Total current assets	843.2	405.1
Property, plant and equipment	8,045.9	7,943.8
Less: accumulated depreciation	2,141.2	1,956.9
Net property, plant and equipment	5,904.7	5,986.9
Investments in non-controlled entities	980.8	1,213.9
Right-of-use asset, operating leases	174.2	166.1
Long-term receivables	10.1	22.8
Goodwill	50.1	50.1
Other intangibles (less accumulated amortization of $9.2 and $11.9 at December 31, 2020 and 2021, respectively)	43.2	44.9
Restricted cash	7	9.4
Noncurrent assets held for sale	0	277.6
Other noncurrent assets	16.7	20.2
Total assets	8,030	8,197
Current liabilities:
Accounts payable	109.5	98
Accrued payroll and benefits	74.9	52.1
Accrued interest payable	59	59
Accrued taxes other than income	76.5	67.7
Deferred revenue	92.5	98.6
Accrued product liabilities	153.5	75.2
Commodity derivatives contracts, net	18.6	21.6
Current portion of operating lease liability	25.8	27.5
Liabilities held for sale	15.8	8.4
Other current liabilities	53.5	50.5
Total current liabilities	679.6	558.6
Long-term operating lease liability	147.3	137.5
Long-term debt, net	5,088.8	4,978.7
Long-term pension and benefits	145	163.8
Long-term liabilities held for sale	0	1.5
Other noncurrent liabilities	69.5	53.1
Commitments and contingencies
Partners’ capital:
Common unitholders (223.1 units and 212.4 units outstanding at December 31, 2020 and 2021, respectively)	2,054.8	2,487
Accumulated other comprehensive loss	(155)	(183.2)
Total partners’ capital	1,899.8	2,303.8
Total liabilities and partners’ capital	$ 8,030	$ 8,197

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Other intangibles, accumulated amortization	$ 11.9	$ 9.2
Common unitholders, units outstanding (in shares)	212,387,990	223,119,811

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Activities:
Net income	$ 982	$ 817	$ 1,020.8
Adjustments to reconcile net income to net cash provided by operating activities:
Income from discontinued operations	(49.7)	(28.9)	(32.8)
Depreciation, amortization and impairment expense	227.9	243.1	230.7
Gain on disposition of assets	(75)	(12.9)	(29)
Earnings of non-controlled entities	(154.4)	(153.3)	(169)
Distributions from operations of non-controlled entities	193.3	207.6	203.6
Equity-based incentive compensation expense	21.8	12	24
Settlement cost, amortization of prior service credit and actuarial loss	8.4	6.7	8.2
Debt extinguishment costs	0	12.9	8.3
Changes in operating assets and liabilities (Note 9)	(9.7)	(37.1)	2.1
Net cash provided by operating activities of continuing operations	1,144.6	1,067.1	1,266.9
Net cash provided by operating activities of discontinued operations	51.6	40.4	53.2
Net cash provided by operating activities	1,196.2	1,107.5	1,320.1
Investing Activities:
Additions to property, plant and equipment, net	(148.6)	(424.1)	(923.2)
Proceeds from disposition of assets	275.1	334.8	65.4
Investments in non-controlled entities	(5.6)	(95.1)	(212.4)
Distributions from returns of investments in non-controlled entities	0	0.5	8.5
Deposits received from undivided joint interest third party	0	0	75.3
Net cash provided (used) by investing activities of continuing operations	120.9	(183.9)	(986.4)
Net cash used by investing activities of discontinued operations	(2.8)	(15.5)	(19.8)
Net cash provided (used) by investing activities	118.1	(199.4)	(1,006.2)
Financing Activities:
Distributions paid	(906.4)	(927.1)	(921.6)
Repurchase of common units	(523.1)	(276.9)	0
Net commercial paper borrowings	108	0	0
Borrowings under long-term notes	0	828.4	996.4
Payments on notes	0	(550)	(550)
Debt placement costs	0	(7.6)	(12)
Debt extinguishment costs	0	(12.9)	(8.3)
Net payment on financial derivatives	0	(9.5)	(33.3)
Payments associated with settlement of equity-based incentive compensation	(6.2)	(14.7)	(9.8)
Net cash used by financing activities	(1,327.7)	(970.3)	(538.6)
Change in cash, cash equivalents and restricted cash	(13.4)	(62.2)	(224.7)
Cash, cash equivalents and restricted cash at beginning of period	22.4	84.6	309.3
Cash, cash equivalents and restricted cash at end of period	9	22.4	84.6
Supplemental non-cash investing and financing activities:
Additions to property, plant and equipment	(140.8)	(344.4)	(959.8)
Changes in current liabilities related to capital expenditures	(7.8)	(79.7)	36.6
Additions to property, plant and equipment, net	$ (148.6)	$ (424.1)	$ (923.2)

Consolidated Statement of Partn

Consolidated Statement of Partners' Capital - USD ($) $ in Millions	Total	Common Unitholders	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2018	$ 2,643.4	$ 2,763.9	$ (120.5)
Comprehensive income:
Net income	1,020.8	1,020.8
Total other comprehensive income (loss)	(41.6)		(41.6)
Comprehensive income	979.2	1,020.8	(41.6)
Distributions	(921.6)	(921.6)
Equity-based incentive compensation expense	24	24
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	(9.8)	(9.8)
Other	(0.7)	(0.7)
Ending balance at Dec. 31, 2019	2,715	2,877.1	(162.1)
Comprehensive income:
Net income	817	817
Total other comprehensive income (loss)	(21.1)		(21.1)
Comprehensive income	795.9	817	(21.1)
Distributions	(927.1)	(927.1)
Equity-based incentive compensation expense	12	12
Repurchase of common units	(276.9)	(276.9)
Issuance of common units in settlement of equity-based incentive plan awards	0.6	0.6
Payments associated with settlement of equity-based incentive compensation	(14.7)	(14.7)
Other	(1)	(1)
Ending balance at Dec. 31, 2020	2,303.8	2,487	(183.2)
Comprehensive income:
Net income	982	982
Total other comprehensive income (loss)	28.2		28.2
Comprehensive income	1,010.2	982	28.2
Distributions	(906.4)	(906.4)
Equity-based incentive compensation expense	21.8	21.8
Repurchase of common units	(523.1)	(523.1)
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 Dec. 31, 2021	$ 1,899.8	$ 2,054.8	$ (155)

Organization and Description of

Organization and Description of Business	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	Organization and Description of Business 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 December 31, 2021, our asset portfolio, excluding assets associated with discontinued operations, 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. Description of Products 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; • liquefied petroleum gases or 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.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Significant Accounting Policies Basis of Presentation. Our consolidated financial statements include our refined products and crude oil operating segments. We consolidate all entities in which we have a controlling ownership interest. We apply the equity method of accounting to investments in entities over which we exercise significant influence but do not control. We eliminate all intercompany transactions. In June 2021, we entered into an agreement to sell our independent terminals network comprised of 26 refined petroleum products terminals with approximately six million barrels of storage located primarily in the southeastern United States (“U.S.”). The sale is expected to close upon the receipt of required regulatory approval. The related results of operations, financial position and cash flows have been classified as discontinued operations for all periods presented (see Note 3 – Discontinued Operations and Assets Held for Sale for additional details). Unless indicated otherwise, the information in the Notes to Consolidated Financial Statements relates to continuing operations. Reclassifications. Certain prior period amounts have been reclassified to conform with the current period’s presentation, including amounts related to our discontinued operations. Use of Estimates. The preparation of our consolidated financial statements in conformity with U.S. generally accepted accounting principles (“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. Cash Equivalents. Cash and cash equivalents include demand and time deposits and funds that own highly marketable securities with original maturities of three months or less when acquired. We periodically assess the financial condition of the institutions where we hold these funds, and at December 31, 2020 and 2021, we believed our credit risk relative to these funds was minimal. Restricted Cash. Restricted cash includes cash that we are contractually required to use for the construction of fixed assets and is unavailable for general use. It is classified as noncurrent due to its designation to be used for the construction of noncurrent assets. Accounts Receivable and Allowance for Doubtful Accounts. Accounts receivable represent valid claims against customers. We recognize accounts receivable when we sell products or render services and collection of the receivable is probable. We extend credit terms to certain customers after a review of various credit indicators. We establish an allowance for doubtful accounts using an expected credit loss approach and evaluate reserves no less than quarterly to determine their adequacy. Judgments relative to at-risk accounts include the customers’ current financial condition, the customers’ historical relationship with us and current and projected economic conditions. We write off accounts receivable when we deem an account uncollectible. Product Overages and Shortages. Each period end we measure the volume of each type of product in our pipeline systems and terminals, which is compared to the volumes of our customers’ inventories (as adjusted for tender deductions). To the extent the product volumes in our pipeline systems and terminals exceed the volumes of our customers’ book inventories, we recognize a gain from the product overage and increase our product inventories. To the extent the product in our pipeline systems and terminals is less than our customers’ book inventories, we recognize a loss from the product shortage and we record a liability for product owed to our customers. The product overages we recognize are recorded based on market prices, and the resulting inventory is carried at weighted average cost. The product shortages we recognize are recorded based on our weighted average cost. Additionally, when product shortages result in a net short inventory position, the related liability is recorded based on period-end market prices. Product overages and shortages as well as adjustments to the value of net short inventory positions are recorded in operating expenses on our consolidated statements of income. Income Taxes. We are a partnership for income tax purposes and therefore are not subject to federal or state income taxes for most of the states in which we operate. The tax on our net income is borne by our unitholders through allocation to them of their share of our taxable income. Net income for financial statement purposes may differ significantly from taxable income allocated to unitholders because of differences between the tax basis and financial reporting basis of assets and liabilities and the taxable income allocation requirements under our partnership agreement. The aggregate difference in the basis of our net assets for financial and tax reporting purposes cannot be readily determined because information regarding each unitholder’s tax attributes is not available to us. The amounts recognized as provision for income taxes in our consolidated statements of income are primarily comprised of partnership-level taxes levied by the state of Texas. This tax is based on revenues less direct costs of sale for our assets apportioned to the state of Texas. Net Income Per Unit. We calculate basic net income per common unit for each period by dividing net income by the weighted average number of common units outstanding. 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, which are included in the calculation of basic and diluted weighted average units outstanding and (ii) 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 long-term incentive plan, which have not yet vested in periods where contingent performance metrics have been met. Index of Additional Significant Accounting Policies Discontinued Operations and Assets Held for Sale Note 3 – Discontinued Operati ons and Assets Held for Sa le Revenue from Contracts with Customers Note 5 – Revenue Property, Plant and Equipment Note 6 – Property, Plant and Equipment, Goodwill and Other Intangibles Goodwill and Other Intangible Assets Note 6 – Property, Plant and Equipment, Goodwill and Other Intangibles Investments in Non-Controlled Entities Note 7 – Investments in Non-Controlled Entities Inventory Note 8 – Inventory Leases Note 1 1 – Leases Pension and Postretirement Medical and Life Benefit Obligations Note 1 2 – Employee Benefit Plans Equity-Based Incentive Compensation Note 1 3 – Long-Term Incentive Plan Derivative Financial Instruments Note 1 4 – Derivative Financial Instruments Contingencies and Environmental Note 1 6 – Commitments and Contingencies 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 and Ass

Discontinued Operations and Assets Held for Sale	12 Months Ended
	Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations and Assets Held for Sale	Discontinued Operations and Assets Held for Sale In June 2021, we entered into an agreement to sell our independent terminals network comprised of 26 refined petroleum products terminals with approximately six million barrels of storage located primarily in the southeastern U.S. to Buckeye Partners, L.P. (“Buckeye”) for $435 million. The sale is expected to close upon the receipt of required regulatory approval. The related results of operations, which were previously included in our refined products segment, have been classified as discontinued operations. Summarized Results of Discontinued Operations The following table provides the summarized results that have been reclassified from continuing operations to discontinued operations on the consolidated statements of income for the years ended December 31, 2019, 2020 and 2021 (in millions): Year Ended December 31, 2019 2020 2021 Transportation and terminals revenue $ 56.8 $ 51.4 $ 53.3 Product sales revenue 70.3 54.2 83.7 Total revenue 127.1 105.6 137.0 Costs and expenses: Operating 17.9 13.4 11.2 Cost of product sales 58.5 45.5 66.5 Depreciation, amortization and impairment 15.4 15.6 7.1 General and administrative 2.5 2.2 2.5 Total costs and expenses 94.3 76.7 87.3 Income from discontinued operations $ 32.8 $ 28.9 $ 49.7 Summarized Assets and Liabilities of Discontinued Operations The following table provides the summarized assets and liabilities classified as held for sale on the consolidated balance sheets as of December 31, 2020 and 2021 (in millions): Year Ended December 31, 2020 2021 Assets: Trade accounts receivable $ 5.6 $ 6.3 Inventory 9.2 17.0 Net property, plant and equipment 274.9 272.0 Goodwill 2.7 2.7 Other assets 0.3 1.5 Total assets classified as held for sale $ 292.7 $ 299.5 Liabilities: Accounts payable $ 2.0 $ 3.7 Accrued product liabilities 4.0 8.4 Other liabilities 3.9 3.7 Total liabilities classified as held for sale $ 9.9 $ 15.8

Segment Disclosures

Segment Disclosures	12 Months Ended
	Dec. 31, 2021
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, operating expenses, 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. Year Ended December 31, 2019 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,299.0 $ 620.3 $ (5.4) $ 1,913.9 Product sales revenue 637.5 28.3 — 665.8 Affiliate management fee revenue 6.7 14.5 — 21.2 Total revenue 1,943.2 663.1 (5.4) 2,600.9 Operating expense 454.0 173.3 (10.9) 616.4 Cost of product sales 532.8 28.1 — 560.9 Other operating (income) expense (10.2) 7.2 — (3.0) Earnings of non-controlled entities (8.1) (160.9) — (169.0) Operating margin 974.7 615.4 5.5 1,595.6 Depreciation, amortization and impairment expense 158.7 66.5 5.5 230.7 G&A expense 138.3 55.9 — 194.2 Operating profit $ 677.7 $ 493.0 $ — $ 1,170.7 Additions to long-lived assets $ 785.1 $ 74.2 $ 859.3 As of December 31, 2019 (in millions) Segment assets $ 5,116.4 $ 2,894.7 $ 8,011.1 Assets held for sale 295.5 Corporate assets 131.1 Total assets $ 8,437.7 Goodwill $ 38.5 $ 12.1 $ 50.6 Investments in non-controlled entities $ 422.4 $ 818.2 $ 1,240.6 Year Ended December 31, 2020 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,190.4 $ 559.5 $ (6.6) $ 1,743.3 Product sales revenue 524.4 33.1 — 557.5 Affiliate management fee revenue 6.3 14.9 — 21.2 Total revenue 1,721.1 607.5 (6.6) 2,322.0 Operating expense 411.8 189.2 (13.2) 587.8 Cost of product sales 425.8 42.4 — 468.2 Other operating (income) expense (3.2) 3.1 — (0.1) Earnings of non-controlled entities (32.5) (120.8) — (153.3) Operating margin 919.2 493.6 6.6 1,419.4 Depreciation, amortization and impairment expense 159.9 76.6 6.6 243.1 G&A expense 123.5 47.7 — 171.2 Operating profit $ 635.8 $ 369.3 $ — $ 1,005.1 Additions to long-lived assets $ 277.5 $ 56.4 $ 333.9 As of December 31, 2020 (in millions) Segment assets $ 4,977.0 $ 2,836.9 $ 7,813.9 Assets held for sale 292.7 Corporate assets 90.4 Total assets $ 8,197.0 Goodwill $ 38.0 $ 12.1 $ 50.1 Investments in non-controlled entities $ 429.2 $ 784.7 $ 1,213.9 Year Ended December 31, 2021 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,338.5 $ 466.2 $ (5.8) $ 1,798.9 Product sales revenue 763.9 149.1 — 913.0 Affiliate management fee revenue 6.4 14.8 — 21.2 Total revenue 2,108.8 630.1 (5.8) 2,733.1 Operating expense 416.7 165.4 (12.4) 569.7 Cost of product sales 630.1 149.9 — 780.0 Other operating (income) expense (6.9) 4.1 — (2.8) Earnings of non-controlled entities (34.4) (120.0) — (154.4) Operating margin 1,103.3 430.7 6.6 1,540.6 Depreciation, amortization and impairment expense 153.9 67.4 6.6 227.9 G&A expense 147.8 58.5 — 206.3 Operating profit $ 801.6 $ 304.8 $ — $ 1,106.4 Additions to long-lived assets $ 88.9 $ 41.1 $ 130.0 As of December 31, 2021 (in millions) Segment assets $ 4,880.0 $ 2,780.7 $ 7,660.7 Assets held for sale 299.5 Corporate assets 69.8 Total assets $ 8,030.0 Goodwill $ 38.0 $ 12.1 $ 50.1 Investments in non-controlled entities $ 232.8 $ 748.0 $ 980.8

Revenue

Revenue	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Revenue recognition policies Revenue is recognized upon the satisfaction of each performance obligation required by our customer contracts. Transportation and terminals revenue is recognized over time as our customers receive the benefits of our service as it is performed on their behalf using an output method based on actual deliveries. Revenue for our storage services is recognized over time using an output method based on the capacity of storage under contract with our customers. Product sales revenue is recognized at a point in time when our customers take control of the commodities purchased. We record back-to-back purchases and sales of petroleum products on a net basis. We recognize pipeline transportation revenue for crude oil shipments when our customers’ product arrives at the customer-designated destination. For shipments of refined products under published tariffs that combine transportation and terminalling services, we recognize revenue when our customers take delivery of their product from our system. For shipments where terminalling services are not included in the tariff, we recognize revenue when our customers’ product arrives at the customer-designated destination. We have certain contracts that require counterparties to ship a minimum volume over an agreed-upon time period, which are contracted as minimum dollar or volume commitments. Revenue pursuant to these take-or-pay contracts is recognized when the customers utilize their committed volumes. Additionally, when we estimate that the customers will not utilize all or a portion of their committed volumes, we recognize revenue in proportion to the pattern of exercised rights for the respective commitment period. Our interstate common carrier pipeline operations are subject to rate regulation by the Federal Energy Regulatory Commission (“FERC”) under the Interstate Commerce Act, the Energy Policy Act of 1992 and related rules and orders. FERC regulation requires that interstate pipeline rates be filed with the FERC, be posted publicly, be “just and reasonable” and not be unduly discriminatory. The rates on approximately 30% of the shipments on our refined products pipeline system are regulated by the FERC primarily through an index methodology. As an alternative to cost-of-service or index-based rates, interstate liquid pipeline companies may establish rates by obtaining authority to charge market-based rates in competitive markets or by negotiation with unaffiliated shippers. Approximately 70% of our refined products pipeline system’s markets are either subject to regulations by the states in which we operate or are approved for market-based rates by the FERC, and in both cases these rates can generally be adjusted at our discretion based on market factors. Most of the tariffs on our crude oil pipelines are established by negotiated rates that generally provide for annual adjustments in line with changes in the FERC index, subject to certain modifications. For both our index-based rates and our market-based rates, our published tariffs serve as contracts, and shippers nominate the volume to be shipped up to a month in advance. These tariffs include provisions which allow us to deduct from our customer’s inventory a small percentage of the products our customers transport on our pipeline systems. We refer to this non-monetary consideration as tender deduction revenue. We receive tender deductions from our customers as consideration for product losses during the transportation of petroleum products within our pipeline systems. Tender deduction revenue is generally recognized as transportation revenue when the customer's transported commodities reach their destination and is recorded at the fair value of the product received on the date received or the contract date, as applicable. Product sales revenue pricing is contractually specified, and we have determined that each barrel sold represents a separate performance obligation. Transaction prices for our other services, including terminalling, storage and ancillary services, are typically contracted as a single performance obligation with our customers. In circumstances where multiple performance obligations are contractually required, we allocate the transaction price to the various performance obligations based on their relative standalone selling price. 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): Year Ended December 31, 2019 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 787.7 $ 381.6 $ — $ 1,169.3 Terminalling 139.9 17.8 — 157.7 Storage 214.9 119.3 (5.4) 328.8 Ancillary services 128.6 28.4 — 157.0 Lease revenue 27.9 73.2 — 101.1 Transportation and terminals revenue 1,299.0 620.3 (5.4) 1,913.9 Product sales revenue 637.5 28.3 — 665.8 Affiliate management fee revenue 6.7 14.5 — 21.2 Total revenue 1,943.2 663.1 (5.4) 2,600.9 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (27.9) (73.2) — (101.1) (Gains) losses from futures contracts included in product sales revenue 63.5 3.0 — 66.5 Affiliate management fee revenue (6.7) (14.5) — (21.2) Total revenue from contracts with customers under ASC 606 $ 1,972.1 $ 578.4 $ (5.4) $ 2,545.1 Year Ended December 31, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 742.9 $ 305.4 $ — $ 1,048.3 Terminalling 109.6 21.5 — 131.1 Storage 199.3 129.0 (6.6) 321.7 Ancillary services 114.9 26.9 — 141.8 Lease revenue 23.7 76.7 — 100.4 Transportation and terminals revenue 1,190.4 559.5 (6.6) 1,743.3 Product sales revenue 524.4 33.1 — 557.5 Affiliate management fee revenue 6.3 14.9 — 21.2 Total revenue 1,721.1 607.5 (6.6) 2,322.0 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (23.7) (76.7) — (100.4) (Gains) losses from futures contracts included in product sales revenue (56.8) 3.6 — (53.2) Affiliate management fee revenue (6.3) (14.9) — (21.2) Total revenue from contracts with customers under ASC 606 $ 1,634.3 $ 519.5 $ (6.6) $ 2,147.2 Year Ended December 31, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 915.7 $ 228.8 $ — $ 1,144.5 Terminalling 100.1 17.0 — 117.1 Storage 177.1 114.8 (5.8) 286.1 Ancillary services 125.2 29.9 — 155.1 Lease revenue 20.4 75.7 — 96.1 Transportation and terminals revenue 1,338.5 466.2 (5.8) 1,798.9 Product sales revenue 763.9 149.1 — 913.0 Affiliate management fee revenue 6.4 14.8 — 21.2 Total revenue 2,108.8 630.1 (5.8) 2,733.1 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (20.4) (75.7) — (96.1) (Gains) losses from futures contracts included in product sales revenue (127.2) (16.0) — (143.2) Affiliate management fee revenue (6.4) (14.8) — (21.2) Total revenue from contracts with customers under ASC 606 $ 1,954.8 $ 523.6 $ (5.8) $ 2,472.6 Balance Sheet Disclosures We invoice customers on our refined products pipelines for transportation services when their product enters our system. At each period end, we record all invoiced amounts associated with products that have not yet been delivered (in-transit products) as a contract liability. We also record contract liabilities for payments received in conjunction with take-or-pay contracts, storage contracts and other service offerings in which the service to our customers remains unfulfilled. These liabilities are presented as deferred revenue and other noncurrent liabilities on our consolidated balance sheets. We recognize contract assets for costs incurred to obtain new customer contracts. Additionally, at each period end, we defer a portion of the costs incurred associated with our customers’ in-transit products based on our per-barrel direct delivery costs and the average delivery point for all barrels in our system. These contract assets are presented on our consolidated balance sheets as other current and noncurrent assets. Contract assets and contract liabilities are determined using judgments and assumptions that management considers reasonable. The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in millions): December 31, 2020 December 31, 2021 Accounts receivable from contracts with customers $ 103.3 $ 134.8 Contract assets $ 12.2 $ 12.5 Contract liabilities $ 102.7 $ 100.1 For the year ended December 31, 2021, we recognized $80.9 million of transportation and terminals revenue that was recorded in deferred revenue as of December 31, 2020. Unfulfilled Performance Obligations We have certain contracts with customers that represent customer commitments to purchase a minimum amount of our services over specified time periods. These contracts require us to provide services to our customers in the future and result in us having unfulfilled performance obligations (“UPOs”) to our customers related to the periods remaining under each contract. We have UPOs in many of our core business services, including transportation, terminalling and storage. The UPOs will be recognized as revenue in the future as our customers utilize our services or when we estimate that our customers are not likely to use all or a portion of their commitments. The following table provides the aggregate amount of the transaction price allocated to our UPOs as of December 31, 2021 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 Amounts as of December 31, 2021 $ 1,874.5 $ 1,069.8 $ 2,944.3 Remaining terms 1 - 17 years 1 - 10 years Estimated revenues from UPOs to be recognized in the next 12 months $ 368.9 $ 257.4 $ 626.3 In computing the value of these future revenues, we have used the current rates in effect as of December 31, 2021 and have not included any estimates for future rate changes due to changes in the FERC index or other contractually negotiated rate escalations. Our UPO balances include the full amount of our customer commitments

Property, Plant and Equipment a

Property, Plant and Equipment and Other Intangibles	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment and Other Intangibles	Property, Plant and Equipment, Goodwill and Other Intangibles Property, Plant and Equipment Property, plant and equipment consists primarily of pipeline, pipeline-related equipment, storage tanks and processing equipment. We state property, plant and equipment at cost except for certain acquired assets recorded at fair value on their respective acquisition dates and impaired assets. We record impaired assets at fair value on the last impairment evaluation date for which an adjustment was required. We assign asset lives based on reasonable estimates when we place an asset into service. Subsequent events could cause us to change our estimates, which would affect the future calculation of depreciation expense. When we sell or retire property, plant and equipment, we remove its carrying value and the related accumulated depreciation from our accounts and record any associated gains or losses on our consolidated statements of income in the period of sale or disposition. We capitalize expenditures to replace existing assets and retire the replaced assets. We capitalize expenditures when they extend the useful life, increase the productivity or capacity, or improve the safety or efficiency of the asset. We capitalize direct project costs such as labor and materials as incurred. Indirect project costs, such as overhead, are capitalized based on a percentage of direct labor charged to the respective capital project. We charge expenditures for maintenance, repairs and minor replacements to operating expense in the period incurred. During construction, we capitalize interest on construction projects undergoing preparation for use and when total budgeted project costs exceed $0.5 million. The interest we capitalize is based on the weighted average interest rate of our debt. The weighted average rates used to capitalize interest on borrowed funds were 4.6%, 4.4% and 4.4% for the years ended December 31, 2019, 2020 and 2021, respectively. Property, plant and equipment consisted of the following (in millions): Estimated Depreciable Lives December 31, 2020 2021 Construction work-in-progress $ 122.0 $ 89.5 Land and rights-of-way 373.9 374.3 Buildings 119.7 121.8 10 to 53 years Storage tanks 1,952.7 1,986.7 10 to 49 years Pipeline and station equipment 3,325.9 3,386.0 10 to 59 years Processing equipment 1,769.4 1,826.4 3 to 56 years Other 280.2 261.2 3 to 53 years Property, plant and equipment, gross $ 7,943.8 $ 8,045.9 Other includes total interest capitalized on assets placed in service as of December 31, 2020 and 2021 of $96.2 million and $98.7 million, respectively. Depreciation expense for the years ended December 31, 2019, 2020 and 2021 was $227.5 million, $240.5 million and $225.2 million, respectively. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. In reviewing for impairment, the carrying value of such assets is compared to the estimated undiscounted future cash flows expected from the use of the assets and their eventual disposition. If such cash flows are not sufficient to support the asset’s recorded value, an impairment charge is recognized to reduce the carrying value of the long-lived asset to its estimated fair value. The determination of future cash flows as well as the estimated fair value of long-lived assets involves significant estimates on the part of management. In accordance with ASC, 360 Plant, Property and Equipment , we ceased recording depreciation and amortization for the assets held for sale in June 2021. Goodwill We record the excess of purchase price over the fair value of the tangible and identifiable intangible assets acquired and liabilities assumed in a business acquisition (or combination) as goodwill. The goodwill relating to each of our reporting units is tested for impairment annually as well as when an event or change in circumstances indicates an impairment may have occurred. For purposes of performing the impairment test for goodwill, our reporting units are our refined products and crude oil segments. In 2019 and 2020, we elected to complete the qualitative goodwill impairment test and concluded it was more likely than not that the fair value of each of our reporting units was greater than its carrying amount. In 2021, we elected to perform the quantitative assessment for purposes of our annual goodwill impairment test and calculated that the fair value of each of our reporting units was greater than the carrying amount. Based on this assessment, we concluded goodwill was not impaired. Other Intangibles Other intangible assets with finite lives are amortized over their estimated useful lives of 7 years up to 30 years. The weighted average asset life of our other intangible assets at December 31, 2021 was approximately 16 years. We adjust the useful lives of our other intangible assets if events or circumstances indicate there has been a change in the remaining useful lives. We eliminate from our balance sheets the gross carrying amount and the related accumulated amortization for any fully amortized intangibles in the year they are fully amortized. During the years ended December 31, 2019, 2020 and 2021, amortization of other intangible assets was $3.3 million, $2.7 million and $2.7 million, respectively.

Investments in Non-Controlled E

Investments in Non-Controlled Entities	12 Months Ended
	Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]
Investments in Non-Controlled Entities	Investments in Non-Controlled EntitiesWe account for interests in affiliates that we do not control using the equity method of accounting. Under this method, an investment is recorded at our acquisition cost or capital contributions, as adjusted by contractual terms, plus equity in earnings or losses since acquisition or formation, plus interest capitalized, less distributions received and amortization of interest capitalized and excess net investment. Excess net investment is the amount by which our investment in a non-controlled entity exceeded our proportionate share of the book value of the net assets of that investment. We amortize excess net investment over the weighted average depreciable asset lives of the equity investee. Our unamortized excess net investment was $33.0 million and $32.0 million at December 31, 2020 and 2021, respectively. The amount of unamortized excess investment is primarily related to our investment in BridgeTex. We evaluate equity method investments for impairment whenever events or circumstances indicate that there is an other-than-temporary loss in value of the investment. In the event that we determine that the loss in value of an investment is other-than-temporary, we would record a charge to earnings to adjust the carrying value to fair value. We recognized no equity investment impairments during 2019, 2020 and 2021. Our equity investments in non-controlled entities at December 31, 2021 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% In April 2021, we sold nearly half of our membership interest in MVP. As a result of the sale, we received proceeds of $272.1 million and recorded a gain of $70.4 million on our consolidated statements of income. Following the sale, we own approximately 25% of MVP and remain the operator of the facility. 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 $5.3 million, $3.6 million and $2.5 million, respectively, for the years ended December 31, 2019, 2020 and 2021. We recorded the following revenue and expense transactions from certain of these non-controlled entities in our consolidated statements of income (in millions): Year Ended December 31, 2019 2020 2021 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 41.8 $ 42.3 $ 43.7 Double Eagle, throughput revenue $ 6.2 $ 4.9 $ 3.0 Saddlehorn, storage revenue $ 2.2 $ 2.5 $ 2.3 Operating expense: Seabrook, storage lease and ancillary services $ 25.9 $ 29.1 $ 19.7 Product sales revenue: Seabrook, product sales $ 0.3 $ — $ — Other operating income: MVP, easement sale $ 0.3 $ — $ — Seabrook, gain on sale of air emission credits $ — $ 1.4 $ 0.4 Our consolidated balance sheets reflected the following balances related to our investments in non-controlled entities (in millions): December 31, 2020 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 0.4 $ — $ 1.0 $ — Double Eagle $ 0.3 $ — $ — $ — HoustonLink $ — $ — $ 0.1 $ — MVP $ — $ 0.5 $ 2.3 $ — Powder Springs $ — $ — $ — $ 10.2 Saddlehorn $ — $ 0.1 $ — $ — Seabrook $ — $ — $ 7.3 $ — December 31, 2021 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 1.2 $ — $ 0.3 $ — Double Eagle $ 0.2 $ — $ — $ — HoustonLink $ — $ — $ 0.2 $ — MVP $ — $ 0.6 $ 2.2 $ — Powder Springs $ — $ — $ — $ — Saddlehorn $ — $ 0.2 $ — $ — Seabrook $ — $ 0.1 $ 3.2 $ — We entered into a long-term terminalling and storage contract with Seabrook for 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 11 – Leases for more details regarding this lease). We also made purchases of transmix from MVP throughout the year totaling $7.6 million. 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 interests) follows (in millions): Investments at December 31, 2020 $ 1,213.9 Additional investment 5.6 Sale of ownership interests (199.8) Earnings of non-controlled entities: Proportionate share of earnings 156.2 Amortization of excess investment and capitalized interest (1.8) Earnings of non-controlled entities 154.4 Less: Distributions from operations of non-controlled entities 193.3 Investments at December 31, 2021 $ 980.8 Summarized financial information of our non-controlled entities (representing 100% of the interests in these entities) follows (in millions): December 31, 2020 2021 Current assets $ 243.8 $ 227.0 Noncurrent assets 2,846.7 2,795.7 Total assets $ 3,090.5 $ 3,022.7 Current liabilities $ 143.6 $ 178.6 Noncurrent liabilities 57.5 59.5 Total liabilities $ 201.1 $ 238.1 Equity $ 2,889.4 $ 2,784.6 Year Ended December 31, 2019 2020 2021 Revenue $ 782.0 $ 752.7 $ 733.1 Net income $ 507.5 $ 471.4 $ 463.4

Inventory

Inventory	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory is comprised primarily of refined products, crude oil, liquefied petroleum gases and transmix and is stated and relieved at the lower of average cost or net realizable value. Inventory at December 31, 2020 and 2021 was as follows (in millions): December 31, 2020 2021 Refined products $ 72.0 $ 138.0 Crude oil 32.4 25.4 Liquefied petroleum gases 25.0 42.0 Transmix 23.4 72.4 Additives 5.4 3.3 Total inventory $ 158.2 $ 281.1

Supplemental Cash Flows Informa

Supplemental Cash Flows Information	12 Months Ended
	Dec. 31, 2021
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flows Information	Consolidated Statements of Cash Flows Changes in the components of operating assets and liabilities are as follows (in millions): Year Ended December 31, 2019 2020 2021 Trade accounts receivable and other accounts receivable $ (20.3) $ (0.9) $ (29.1) Inventory 2.7 14.0 (122.9) Accounts payable (1.9) 4.5 16.0 Accrued payroll and benefits 4.8 (22.3) 22.8 Accrued interest payable 1.0 (5.3) — Accrued taxes other than income 12.6 4.4 8.8 Deferred revenue (11.4) (10.7) (6.1) Accrued product liabilities 15.9 (8.5) 78.3 Other current and noncurrent assets and liabilities (1.3) (12.3) 22.5 Total $ 2.1 $ (37.1) $ (9.7)

Debt

Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Debt	Debt Long-term debt at December 31, 2020 and 2021 was as follows (in millions): December 31, 2020 2021 Commercial paper $ — $ 108.0 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 5,000.0 5,108.0 Unamortized debt issuance costs (1) (40.1) (37.8) Net unamortized debt premium (1) 18.8 18.6 Long-term debt, net $ 4,978.7 $ 5,088.8 (1) Debt issuance costs and 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. At December 31, 2021, maturities of our senior notes were as follows: $0 in 2022 through 2024; $250 million in 2025; and $4.75 billion thereafter. Other Debt Revolving Credit Facility . At December 31, 2021, 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 December 31, 2021. Borrowings under this facility may be used for general purposes, including capital expenditures. As of December 31, 2020 and 2021, 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 year ended December 31, 2021. 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. The weighted average interest rate for commercial paper borrowings based on the number of days outstanding was 0.4% and 0.2% for the year ended December 31, 2020 and 2021, respectively. There was $108.0 million outstanding under this program at December 31, 2021. During the years ending December 31, 2019, 2020 and 2021, total cash payments for interest on all indebtedness, excluding the impact of related interest rate swap agreements, were $217.1 million, $234.5 million and $221.6 million, respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Leases We have both lessee and lessor arrangements. Our leases are evaluated at inception or at any subsequent modification. Depending on the terms, leases are classified as either operating or finance leases if we are the lessee, or as operating, sales-type or direct financing leases if we are the lessor, as appropriate under ASC 842, Leases . Our lessee arrangements primarily include a terminalling and storage contract where we have exclusive use of dedicated tankage, leased pipelines and office buildings. Our lessor arrangements include pipeline capacity and storage contracts and our condensate splitter tolling agreement that qualify as operating leases under ASC 842. In addition, we have a long-term throughput and deficiency agreement with a customer that is being accounted for as a sales-type lease under ASC 842. In accordance with ASC 842, we have made an accounting policy election to not apply the standard to lessee arrangements with a term of one year or less and no purchase option that is reasonably certain of exercise. We will continue to account for these short-term arrangements by recognizing payments and expenses as incurred, without recording a lease liability and right-of-use asset. We have also made an accounting policy election for both our lessee and lessor arrangements to combine lease and non-lease components. This election is applied to all of our lease arrangements as our non-lease components do not result in significant timing differences in the recognition of rental expenses or income. Operating Leases – Lessee We recognize a lease liability for each lease based on the present value of remaining minimum fixed rental payments (which includes payments under any renewal option that we are reasonably certain to exercise), using a discount rate that approximates the rate of interest we would have to pay to borrow on a collateralized basis over a similar term. We also recognize a right-of-use asset for each lease, valued at the lease liability, adjusted for prepaid or accrued rent balances existing at the time of initial recognition. The lease liability and right-of-use asset are reduced over the term of the lease as payments are made and the assets are used. Related Party Operating Lease . We entered into a long-term terminalling and storage contract with Seabrook for 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. Minimum fixed rental payments are recognized on a straight-line basis over the life of the lease as costs and expenses on our consolidated statements of income. Variable and short-term rental payments are recognized as costs and expenses as they are incurred. Variable payments consist of amounts that exceed the contractual minimum rental payment (for example, payment increases tied to a change in a market index). Future minimum rental payments under operating leases with initial terms greater than one year as of December 31, 2021 are as follows (in millions): Third Party Leases Seabrook Lease All Leases 2022 $ 21.2 $ 9.9 $ 31.1 2023 21.4 9.9 31.3 2024 21.7 9.7 31.4 2025 21.8 6.6 28.4 2026 12.5 6.6 19.1 Thereafter 34.1 17.6 51.7 Total future minimum rental payments 132.7 60.3 193.0 Present value discount 12.1 7.8 19.9 Total operating lease liability $ 120.6 $ 52.5 $ 173.1 The following tables provide a summary of the effect on our consolidated statements of income for the years ended December 31, 2019, 2020 and 2021 (in millions): Year Ended December 31, 2019 Third Party Leases Seabrook Lease All Leases Fixed lease expense $ 19.2 $ 10.8 $ 30.0 Short-term lease expense 1.6 — 1.6 Variable lease expense 3.0 15.0 18.1 Total lease expense $ 23.8 $ 25.8 $ 49.7 Year Ended December 31, 2020 Third Party Leases Seabrook Lease All Leases Fixed lease expense $ 19.2 $ 14.3 $ 33.5 Short-term lease expense 1.3 — 1.3 Variable lease expense 4.1 14.8 18.9 Total lease expense $ 24.6 $ 29.1 $ 53.7 Year Ended December 31, 2021 Third Party Leases Seabrook Lease All Leases Fixed lease expense $ 21.0 $ 12.7 $ 33.7 Short-term lease expense 1.7 — 1.7 Variable lease expense 3.4 6.8 10.2 Total lease expense $ 26.1 $ 19.5 $ 45.6 The following table provides a summary of the effect on our consolidated balance sheets as of December 31, 2020 and 2021 (dollars in millions): As of and for the Year Ended December 31, 2020 December 31, 2021 Third Party Leases Seabrook Lease All Leases Third Party Leases Seabrook Lease All Leases Current lease liability $ 17.1 $ 10.4 $ 27.5 $ 17.8 $ 8.0 $ 25.8 Long-term lease liability $ 85.0 $ 52.5 $ 137.5 $ 102.8 $ 44.5 $ 147.3 Right-of-use asset $ 103.2 $ 62.9 $ 166.1 $ 121.7 $ 52.5 $ 174.2 Operating cash flows for operating leases $ 24.1 $ 29.1 $ 53.2 $ 26.2 $ 19.5 $ 45.7 Weighted average remaining lease term (years) 6 7 7 7 7 7 Weighted average discount 3.7 % 4.0 % 3.8 % 3.0 % 4.1 % 3.4 % Operating Leases – Lessor We recognize fixed rental income on a straight-line basis over the life of the lease as revenue on our consolidated statements of income. Variable rental payments are recognized as revenue in the period in which the circumstances on which the variable lease payments are based occur. Future minimum payments receivable under operating leases with initial terms greater than one year as of December 31, 2021 are estimated as follows (in millions): 2022 $ 24.9 2023 25.2 2024 21.9 2025 13.8 2026 13.1 Thereafter 32.9 Total $ 131.8 We recognized variable lease revenue of $58.4 million, $61.4 million and $61.0 million, respectively, for the years ended December 31, 2019, 2020 and 2021, primarily related to our condensate splitter. At December 31, 2021, property, plant and equipment utilized by our customers in operating lease arrangements consisted of: $216.9 million of processing equipment; $56.4 million of storage tanks; $47.5 million of pipeline and station equipment; and $29.0 million of other assets. The processing equipment primarily relates to our condensate splitter. Sales-Type Lease – Lessor We entered into a long-term throughput and deficiency agreement with a customer on a pipeline and related assets that we constructed in Texas and New Mexico, which contains minimum volume/payment commitments. Our customer has the option to purchase this pipeline and related assets at the end of the lease term for a nominal amount. This agreement is accounted for as a sales-type lease under ASC 842. The net investment under this arrangement as of December 31, 2020 and 2021 was as follows (in millions): December 31, 2020 December 31, 2021 Total minimum lease payments receivable $ 14.0 $ 12.2 Less: Unearned income 2.3 1.8 Recorded net investment in sales-type lease $ 11.7 $ 10.4 The net investment in this sales-type lease was classified in the consolidated balance sheets as follows (in millions): December 31, 2020 December 31, 2021 Other accounts receivable $ 1.2 $ 1.3 Long-term receivables 10.5 9.1 Total $ 11.7 $ 10.4

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Compensation and Employee Benefit Plans	Employee Benefit Plans Our pension and postretirement benefit liabilities represent the funded status of the present value of benefit obligations of our employee benefit plans. We develop pension, postretirement medical and life benefit costs from third-party actuarial valuations. We establish actuarial assumptions to anticipate future events and use those assumptions when calculating the expense and liabilities related to these plans. These factors include assumptions management makes concerning expected investment return on plan assets, discount rates, health care costs trend rates, turnover rates and rates of future compensation increases, among others. In addition, we use subjective factors such as withdrawal and mortality rates to develop actuarial valuations. Management reviews and updates these assumptions on an annual basis. The actuarial assumptions that we use may differ from actual results due to changing market rates or other factors. These differences could affect the amount of pension and postretirement medical and life benefit expense we will recognize in future periods. Defined Contribution Plan. 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 expenses related to discontinued operations, were $11.4 million, $12.2 million and $10.6 million in 2019, 2020 and 2021, respectively. Defined Benefit Plans. We sponsor two pension plans, including one for non-union employees and one for union employees, and a postretirement benefit plan for certain employees. The annual measurement date of these plans is December 31. The following table presents the changes in benefit obligations and plan assets for pension benefits and other postretirement benefits, as well as the end-of-period accumulated benefit obligation, including amounts related to discontinued operations, for the years ended December 31, 2020 and 2021 (in millions): Pension Benefits Other Postretirement Benefits 2020 2021 2020 2021 Change in benefit obligations: Benefit obligations at beginning of year $ 381.2 $ 443.6 $ 15.2 $ 17.3 Service cost 27.7 28.2 0.3 0.3 Interest cost 11.0 9.5 0.5 0.4 Plan participants’ contributions — — 0.6 0.8 Actuarial (gain) loss 53.2 (19.4) 2.5 0.9 Benefits paid (23.1) (29.2) (1.8) (1.9) Curtailment gain (1.7) — — — Settlement payments (4.7) (9.3) — — Benefit obligations at end of year 443.6 423.4 17.3 17.8 Change in plan assets: Fair value of plan assets at beginning of year 249.2 295.7 — — Employer contributions 29.3 27.6 1.2 1.1 Plan participants’ contributions — — 0.6 0.8 Actual return on plan assets 43.6 9.7 — — Benefits paid (23.1) (29.2) (1.8) (1.9) Settlement payments (3.3) (9.3) — — Fair value of plan assets at end of year 295.7 294.5 — — Funded status at end of year $ (147.9) $ (128.9) $ (17.3) $ (17.8) Accumulated benefit obligations $ 324.8 $ 305.0 At December 31, 2020 and 2021, the accumulated benefit obligations of each of our plans exceeded the fair value of the related plan’s assets. The pension plans’ actuarial gain in 2021 of $19.4 million is primarily due to the impact of increases in the discount rates used to calculate the benefit obligations, partially offset by demographic changes. The pension benefit obligations experienced an actuarial loss of $53.2 million in 2020 primarily due to the impact of decreases in the discount rates used to calculate the benefit obligations, partially offset by changes in salary assumptions and higher asset returns. The following table summarizes information for pension plans with obligations in excess of plan assets (in millions): December 31, 2020 2021 Plans with a projected benefit obligation in excess of plan assets: Projected benefit obligation $ 443.6 $ 423.4 Fair value of plan assets $ 295.7 $ 294.5 Plans with an accumulated benefit obligation in excess of plan assets: Accumulated benefit obligation $ 324.8 $ 305.0 Fair value of plan assets $ 295.7 $ 294.5 Amounts recognized in the consolidated balance sheets included in these financial statements were as follows (in millions): Pension Benefits Other Postretirement Benefits 2020 2021 2020 2021 Amounts recognized in consolidated balance sheets: Current accrued benefit cost $ — $ — $ 1.4 $ 1.7 Long-term pension and benefits 147.9 128.9 15.9 16.1 147.9 128.9 17.3 17.8 Accumulated other comprehensive loss: Net actuarial loss (120.5) (95.3) (10.4) (10.7) Prior service credit 2.7 2.5 — — (117.8) (92.8) (10.4) (10.7) Net amount of liabilities and accumulated other comprehensive loss recognized in consolidated balance sheets $ 30.1 $ 36.1 $ 6.9 $ 7.1 Net periodic benefit expense for the years ended December 31, 2019, 2020 and 2021 was as follows (in millions): Pension Benefits Other Postretirement Benefits 2019 2020 2021 2019 2020 2021 Components of net periodic benefit costs: Service cost $ 25.4 $ 27.7 $ 28.2 $ 0.2 $ 0.3 $ 0.3 Interest cost 12.2 11.0 9.5 0.5 0.5 0.4 Expected return on plan assets (9.4) (11.4) (11.9) — — — Amortization of prior service credit (0.2) (0.2) (0.2) — — — Amortization of actuarial loss 5.5 5.4 5.4 0.3 0.4 0.6 Settlement cost 2.6 1.0 2.6 — — — Settlement gain on disposition of assets — (1.3) — — — — Net periodic benefit cost $ 36.1 $ 32.2 $ 33.6 $ 1.0 $ 1.2 $ 1.3 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. Changes in plan assets and benefit obligations recognized in other comprehensive income (loss) during 2019, 2020 and 2021 were as follows (in millions): Pension Benefits Other Postretirement Benefits 2019 2020 2021 2019 2020 2021 Beginning balance $ (88.6) $ (104.7) $ (117.8) $ (5.4) $ (8.4) $ (10.4) Net actuarial gain (loss) (24.0) (21.0) 17.2 (3.3) (2.5) (0.9) Amortization of prior service credit (0.2) (0.2) (0.2) — — — Amortization of actuarial loss 5.5 5.4 5.4 0.3 0.5 0.6 Curtailment gain — 1.7 — — — — Settlement cost 2.6 1.0 2.6 — — — Amount recognized in other comprehensive loss (16.1) (13.1) 25.0 (3.0) (2.0) (0.3) Ending balance $ (104.7) $ (117.8) $ (92.8) $ (8.4) $ (10.4) $ (10.7) Actuarial gains and losses are amortized over the average future service period of the current active plan participants expected to receive benefits. The corridor approach is used to determine when actuarial gains and losses are to be amortized and is equal to 10% of the greater of the projected benefit obligation or the market related value of plan assets. The amount of gain or loss in excess of the calculated corridor is subject to amortization. The weighted average rate assumptions used to determine projected benefit obligations were as follows: Pension Benefits Other Postretirement Benefits 2020 2021 2020 2021 Discount rate 2.23% 2.61% 2.30% 2.64% Rate of compensation increase 4.53% 6.51% n/a n/a Cash balance interest crediting rate 1.70% 1.94% n/a n/a The weighted average rate assumptions used to determine net pension and other postretirement benefit plans expense were as follows: Pension Benefits Other Postretirement Benefits For the Year Ended December 31, For the Year Ended December 31, 2019 2020 2021 2019 2020 2021 Discount rate 3.98% 3.01% 2.23% 4.08% 3.06% 2.30% Rate of compensation increase 6.48% 4.58% 4.53% n/a n/a n/a Expected rate of return on plan assets 6.00% 4.50% 4.10% n/a n/a n/a Cash balance interest crediting rate 2.78% 2.16% 1.70% n/a n/a n/a The non-pension postretirement benefit plans provide for retiree contributions and contain other cost-sharing features such as deductibles and coinsurance. The accounting for these plans anticipates future cost sharing that is consistent with management’s expressed intent to increase the retiree contribution rate generally in line with health care cost increases. The annual assumed rate of increase in the health care cost trend rate for 2022 is 6.0% decreasing systematically to 5.08% by 2029 for pre-65 year old participants. The fair values of the pension plan assets at December 31, 2020 were as follows (in millions): Asset Category Total Quoted Prices in Active Markets for Significant Significant Domestic equity securities: (1) Small-cap fund $ 5.8 $ 5.8 $ — $ — Mid-cap fund 5.8 5.8 — — Large-cap fund 47.6 47.6 — — International equity fund 29.9 29.9 — — Fixed income securities: (1) Short-term bond fund 4.2 4.2 — — Intermediate-term bond fund 34.9 34.9 — — Long-term investment grade bond funds 161.0 161.0 — — Other: Short-term investment fund 6.3 6.3 — — Group annuity contract 0.2 — — 0.2 Fair value of plan assets $ 295.7 $ 295.5 $ — $ 0.2 (1) We hold equity and fixed income securities through investments in mutual funds, which are dedicated to each category as indicated. The fair values of the pension plan assets at December 31, 2021 were as follows (in millions): Asset Category Total Quoted Prices in Active Markets for Significant Significant Domestic equity securities (1) : Small-cap fund $ 6.1 $ 6.1 $ — $ — Mid-cap fund 6.0 6.0 — — Large-cap fund 48.0 48.0 — — International equity fund 30.1 30.1 — — Fixed income securities (1) : Long-term investment grade bond funds 197.1 197.1 — — Other: Short-term investment fund 7.0 7.0 — — Group annuity contract 0.2 — — 0.2 Fair value of plan assets $ 294.5 $ 294.3 $ — $ 0.2 (1) We hold equity and fixed income securities through investments in mutual funds, which are dedicated to each category as indicated. As reflected in the tables above, Level 3 activity was not material. The investment strategies for the various funds held as pension plan assets by asset category are as follows: Asset Category Fund’s Investment Strategy Domestic equity securities: Small-cap fund Seeks to track performance of the Center for Research in Security Prices (“CRSP”) US Small Cap Index Mid-cap fund Seeks to track performance of the CRSP US Mid Cap Index Large-cap fund Seeks to track performance of the Standard & Poor’s 500 Index International equity fund Seeks to track performance of the FTSE Global All Cap ex US Index Fixed income securities: Short-term bond fund Seeks current income with limited price volatility through investment in primarily high quality bonds with short-term maturities Intermediate-term bond fund Seeks moderate and sustainable level of current income by investing primarily in high quality fixed income securities with maturities from five to ten years Long-term investment grade bond funds Seek high and sustainable current income through investment primarily in long-term investment grade debt securities Other: Short-term investment funds Invest in high quality short-term money market instruments issued by the U.S. Treasury Group annuity contract Earns interest quarterly equal to the effective yield of the 91-day U.S. Treasury bill The expected long-term rate of return on plan assets was determined by combining a review of projected returns, historical returns of portfolios with assets similar to the current portfolios of the union and non-union pension plans and target weightings of each asset classification. Our investment objective for the assets within the pension plans is to earn a return that meets or exceeds the growth of obligations that result from interest and changes in the discount rate, while avoiding excessive risk. Defined diversification goals are set in order to reduce the risk of wide swings in the market value from year to year, or of incurring large losses that may result from concentrated positions. As a result, our plan assets have no significant concentrations of credit risk. Additionally, liquidity risks are minimized because the funds that the plans have invested in are publicly traded. We evaluate risks based on the potential impact to the predictability of contribution requirements, probability of under-funding, expected risk-adjusted returns and investment return volatility. Funds are invested with multiple investment managers. Our liabilities are calculated using rates defined by the Pension Protection Act of 2006. Approximately 70% of the plans’ investments are allocated to fixed-income securities and invested to match the durations of the plans’ short, intermediate and long-term pension liabilities, with the amount invested in each duration reflecting that duration’s proportion of the plans’ liabilities. The remaining approximately 30% of the plans’ investments are allocated to equity securities. The target allocation and actual weighted average asset allocation percentages at December 31, 2020 and 2021 were as follows: 2020 2021 Actual Target Actual Target Equity securities 30% 30% 30% 30% Fixed income securities 68% 67% 67% 70% Other 2% 3% 3% —% As of December 31, 2021, the benefit amounts expected to be paid from plan assets through December 31, 2031 were as follows (in millions): Pension Other 2022 $ 16.2 $ 1.7 2023 $ 18.1 $ 1.5 2024 $ 21.6 $ 1.3 2025 $ 22.4 $ 1.3 2026 $ 27.4 $ 1.2 2027 through 2031 $ 147.9 $ 4.0 Contributions estimated to be paid by us into the plans in 2022 are $37.2 million and $1.7 million for the pension and other postretirement benefit plans, respectively.

Long-Term Incentive Plan

Long-Term Incentive Plan	12 Months Ended
	Dec. 31, 2021
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 general partner. In April 2021, our compensation committee and our limited partners approved an amendment to the LTIP increasing the number of common units available for issuance from 11.9 million to 13.7 million. The LTIP primarily consists of phantom units. The estimated units remaining available under the LTIP at December 31, 2021 totaled approximately 2.4 million. The awards include: (i) performance-based awards issued to certain officers and other key employees (“performance-based awards”), (ii) time-based awards issued to certain officers and other key employees (“time-based awards,” and together with performance-based awards, “employee awards”) and (iii) awards issued to independent members of our board (“director awards”) that may be deferred and if deferred may be paid in cash. All of the awards include distribution equivalent rights, except non-deferred director awards. The LTIP requires employee awards to be settled in our common units, except the settlement of distribution equivalents, which we pay in cash. As a result, we classify employee awards as equity. Fair value for these awards is determined on the grant date, and we recognize this value as compensation expense ratably over the requisite service period, which is the vesting period of each award. The vesting period for employee awards is generally three years; however, certain awards have been issued with shorter vesting periods while others have vesting periods of up to four years. Because employee awards contain distribution equivalent rights, the fair value of our employee awards is based on the closing price of our units on the grant date. Payouts for performance-based awards are subject to the attainment of a financial metric. Additionally, the 2019 performance-based awards, which vested on December 31, 2021, were subject to an adjustment for our total unitholder return (the “TUR adjustment”), and the fair value of these awards was adjusted for the fair value of the TUR adjustment. The TUR adjustment is based on our total unitholder return at the end of the three-year vesting period of the awards in relation to the total unitholder returns of certain peer entities. The financial metric for the performance-based awards is our distributable cash flow per unit excluding commodity-related activities for the last year of the three-year vesting period as compared to established threshold, target and stretch levels. The payouts for the performance-related component of the awards can range from 0%, for results below threshold, up to 200%, for actual results at stretch or above. Payouts related to time-based awards are based solely on the completion of the requisite service period by the employee and contain no provisions that provide for a payout other than the original number of units awarded and the associated distribution equivalents. Performance-based awards are subject to forfeiture if a participant’s employment is terminated for any reason other than for termination within two years of a change-in-control that occurs on an involuntary basis without cause or on a voluntary basis for good cause, or due to retirement, disability or death prior to the vesting date. These awards can vest early under certain circumstances following a change in control. Time-based awards are subject to forfeiture if a participant’s employment is terminated for any reason other than retirement, death or disability prior to the vesting date, or as the result of certain other employment restrictions. If an employee award recipient retires, dies or becomes disabled prior to the end of the vesting period, the award is prorated based upon months of employment completed during the vesting period, and the award is settled shortly after the end of the vesting period. Compensation expense for our equity awards is calculated as the number of unit awards less forfeitures, multiplied by the grant date fair value of those awards, multiplied by the percentage of the requisite service period completed at each period end, multiplied by the expected payout percentage, less previously-recognized compensation expense. Non-deferred director awards are paid in units valued on the grant date, with compensation expense calculated as the number of units awarded multiplied by the fair value of those units at that date. We classify deferred director awards as liability awards because they may be settled in cash. Because deferred director awards have distribution equivalent rights, the fair value of these awards equals the closing price of our units at the measurement date. Compensation expense for deferred director awards is calculated as the number of units awarded, multiplied by the fair value of those awards on the measurement date, less previously-recognized compensation expense. Non-Vested Unit Awards The following table includes the changes during the current fiscal year in the number of non-vested units that have been granted by the compensation committee. The amounts below do not include adjustments for above-target or below-target performance. Performance-Based Awards Time-Based Awards Total Awards Number of Unit Weighted Average Fair Value Number of Unit Weighted Average Fair Value Number of Unit Weighted Average Fair Value Non-vested units - 1/1/2021 340,164 $ 62.35 353,544 $ 61.07 693,708 $ 61.70 Units granted during 2021 281,823 $ 40.85 301,873 $ 40.99 583,696 $ 40.92 Units vested during 2021 (161,484) $ 63.62 (168,204) $ 60.76 (329,688) $ 62.16 Units forfeited during 2021 (14,578) $ 51.23 (16,699) $ 50.92 (31,277) $ 51.06 Non-vested units - 12/31/21 445,925 $ 48.66 470,514 $ 48.67 916,439 $ 48.67 The table below summarizes the total non-vested unit awards outstanding, including estimated targeted financial performance adjustments, to determine our total equity-based liability accrual. Grant Date Non-Vested Unit Awards Performance Adjustment to Unit Awards Total Unit Award Accrual Vesting Date Unrecognized Compensation Expense (in millions) (a) Performance-based awards: 2020 awards 171,400 (51,420) 119,980 12/31/2022 $ 2.4 2021 awards 274,525 68,631 343,156 12/31/2023 9.3 Time-based awards: 2022 vesting date 178,911 — 178,911 12/31/2022 3.7 2023 vesting date 291,603 — 291,603 12/31/2023 8.3 Total 916,439 17,211 933,650 $ 23.7 (a) Unrecognized compensation expense will be recognized over the remaining vesting period of the awards . Weighted Average Fair Value The weighted average fair value of awards granted during 2019, 2020 and 2021 was as follows: Performance-Based Awards Time-Based Awards Number of Weighted Average Fair Value Number of Unit Weighted Average Fair Value Units granted during 2019 182,834 $ 63.65 195,031 $ 62.91 Units granted during 2020 189,632 $ 61.16 198,450 $ 61.18 Units granted during 2021 281,823 $ 40.85 301,873 $ 40.99 Vested Unit Awards The table below sets forth the numbers and values of units that vested in each of the three years ended December 31, 2021. The vested common units include adjustments for above-target financial and market performance. Vesting Date Vested Fair Value of Unit Awards on Vesting Date (in millions) Intrinsic Value of Unit Awards on Vesting Date (in millions) 12/31/2019 436,629 $31.0 $27.5 12/31/2020 235,127 $15.2 $10.0 12/31/2021 316,336 $19.3 $14.7 Cash Flow Effects of LTIP Settlements The difference between the common units issued to the participants and the total number of unit awards vested primarily represents the tax withholdings associated with the award settlement, which we pay in cash. Settlement Date Number of Common Units Issued, Net of Tax Withholdings Tax Withholdings and Other Cash Payments Employer Taxes (in millions) Total Cash Payments January 2019 199,792 $9.8 $0.9 $10.7 January 2020 275,093 $14.7 $1.3 $16.0 January 2021 150,435 $6.2 $0.7 $6.9 Compensation Expense Summary Equity-based incentive compensation expense for 2019, 2020 and 2021, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in millions): Year Ended December 31, 2019 2020 2021 Performance awards $ 17.9 $ 3.1 $ 11.2 Time-based awards $ 6.1 $ 8.9 $ 10.6 Total $ 24.0 $ 12.0 $ 21.8

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments We use derivative instruments to manage market price risks associated with inventories, interest rates and certain forecasted transactions. For those instruments that qualify for hedge accounting, the accounting treatment depends on their intended use and their designation. We classify derivative financial instruments qualifying for hedge accounting treatment into two categories: (1) cash flow hedges and (2) fair value hedges. We execute cash flow hedges to hedge against the variability in cash flows related to a forecasted transaction and execute fair value hedges to hedge against the changes in the value of a recognized asset or liability. At the inception of a hedged transaction, we document the relationship between the hedging instrument and the hedged item, the risk management objectives and the methods used for assessing and testing hedge effectiveness. We also assess, both at the inception of the hedge and on an on-going basis, whether the derivatives that are used in our hedging transactions are highly effective in offsetting changes in cash flows or fair value of the hedged item. If we determine that a derivative originally designated as a cash flow or fair value hedge is no longer highly effective, we discontinue hedge accounting prospectively and record the change in the fair value of the derivative in current earnings. The changes in fair value of derivative financial instruments that are not designated as hedges for accounting purposes, which we refer to as economic hedges, are included in current earnings. As part of our risk management process, we assess the creditworthiness of the financial and other institutions with which we execute financial derivatives. Such financial instruments involve the risk of non-performance by the counterparty, which could result in material losses to us. Interest Rate Derivatives We periodically enter into interest rate derivatives to hedge the fair value of debt or hedge against variability in interest rates. For interest rate cash flow hedges, we record the unrealized gains or losses as an adjustment to other comprehensive income. The realized gains and losses from our cash flow hedges are recognized into earnings as an adjustment to our periodic interest expense over the life of the related debt issuance. For fair value hedges on long-term debt, we record the unrealized gains or losses as an adjustment to long-term debt, and realized amounts as an adjustment to our periodic interest expense. Adjustments resulting from discontinued hedges continue to be recognized in accordance with their historic hedging relationships. In December 2020, upon issuance of an additional $300.0 million of 3.95% notes due 2050, we terminated and settled treasury lock agreements that we had previously entered into to protect against the variability of interest payments on this anticipated debt issuance for a gain of $1.0 million, which was included in our statements of cash flows as a net receipt on financial derivatives. These agreements were accounted for as cash flow hedges. The gain was recorded to other comprehensive income (loss) and will be recognized into earnings as an adjustment to our periodic interest expense over the term of the life of the associated notes. In May 2020, upon issuance of $500.0 million of 3.25% notes due 2030, we terminated and settled treasury lock agreements that we had previously entered into to protect against the variability of interest payments on this anticipated debt issuance for a loss of $10.4 million, which was included in our statements of cash flows as a net payment on financial derivatives. These agreements were accounted for as cash flow hedges. The loss was recorded to other comprehensive income (loss) and will be recognized into earnings as an adjustment to our periodic interest expense over the term of the life of the associated notes. In August 2019, upon issuance of our $500.0 million of 3.95% notes due 2050, we terminated and settled treasury lock agreements we had previously entered into to protect against the variability of interest payments on this anticipated debt issuance for a loss of $25.3 million, which was included in our statements of cash flows as a net payment on financial derivatives. These agreements were accounted for as cash flow hedges. The loss was recorded to other comprehensive income (loss) and will be recognized into earnings as an adjustment to our periodic interest expense over the life of the associated notes. In January 2019, upon issuance of $500.0 million of 4.85% notes due 2049, we terminated and settled treasury lock agreements that we had previously entered into to protect against the variability of interest payments on this anticipated debt issuance for a loss of $8.0 million, which was included in our statements of cash flows as a net payment on financial derivatives. These agreements were accounted for as cash flow hedges. The loss was recorded to other comprehensive income (loss) and will be recognized into earnings as an adjustment to our periodic interest expense over the life of the associated notes. Commodity Derivatives Our gas liquids blending activities produce gasoline, and we can reasonably estimate the timing and quantities of sales of these products. We use a combination of exchange-traded and over-the-counter commodity derivatives contracts and forward physical purchase and sale contracts to help manage commodity price changes and mitigate the risk of decline in the product margin realized from our gas liquids blending activities. Further, certain of our other commercial operations and marketing activities involve petroleum products inventories, and we also use derivatives contracts to hedge against price changes for some of these inventories. Forward physical purchase and sale contracts that qualify for and are elected as normal purchases and sales are accounted for using traditional accrual accounting, whereby changes in the mark-to-market values of such contracts are not recognized in income, rather the revenues and costs associated with such transactions are recognized during the period when commodities are physically delivered or received. Physical forward commodity contracts subject to this exception are evaluated for the probability of future delivery and are periodically tested once the forecasted period has passed to determine whether similar forward contracts are probable of physical delivery in the future. We record the effective portion of the gains or losses for commodity-based derivative contracts designated as fair value hedges as adjustments to the assets being hedged and the ineffective portions as well as amounts excluded from the assessment of hedge effectiveness as adjustments to other income or expense. We recognize the change in fair value of economic hedges that hedge against changes in the price of petroleum products that we expect to sell or purchase in the future currently in earnings as adjustments to product sales revenue, cost of product sales, or operating expenses, as applicable. Our open futures contracts at December 31, 2021 were as follows: Type of Contract/ Product Represented by the Contract and Associated Barrels Maturity Dates Commodity derivatives contract - Economic hedges 3.3 million barrels of refined products and crude oil Between January and November 2022 Commodity derivatives contract - Economic hedges 0.6 million barrels of gas liquids Between January and April 2022 Commodity Derivatives Contracts and Deposits Offsets At December 31, 2020 and 2021, we had made margin deposits of $34.2 million and $46.3 million, respectively, for our commodity derivatives contracts with our counterparties, which were recorded as current assets 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, 2020 and 2021 (in millions): Description Gross Amounts of Recognized Liabilities Gross Amounts of Assets Offset in the Consolidated Balance Sheets Net Amounts of 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, 2020 $ (21.7) $ 1.2 $ (20.5) $ 34.2 $ 13.7 As of December 31, 2021 $ (22.3) $ 5.1 $ (17.2) $ 46.3 $ 29.1 (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 are 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 account for this agreement as a derivative. The agreement will expire in early 2022. We recognize the changes in fair value of this agreement 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, 2020 and 2021, respectively, was $10.2 million and $1.5 million. Impact of Derivatives on Our Financial Statements Comprehensive Income The changes in derivative activity included in AOCL for the years ended December 31, 2019, 2020 and 2021 were as follows (in millions): Year Ended December 31, Derivative Losses Included in AOCL 2019 2020 2021 Beginning balance $ (26.5) $ (49.0) $ (55.0) Net loss on cash flow hedges (25.2) (9.5) — Reclassification of net loss on cash flow hedges to income 2.7 3.5 3.5 Ending balance $ (49.0) $ (55.0) $ (51.5) The following is a summary of the effect on our consolidated statements of income for the years ended December 31, 2019, 2020 and 2021 of derivatives that were designated as cash flow hedges (in millions): Interest Rate Contracts Amount of Loss Recognized in AOCL on Derivatives Location of Loss Reclassified from AOCL into Income Amount of Loss Reclassified from AOCL into Income Year Ended December 31, 2019 $ (25.2) Interest expense $ (2.7) Year Ended December 31, 2020 $ (9.5) Interest expense $ (3.5) Year Ended December 31, 2021 $ — Interest expense $ (3.5) As of December 31, 2021, 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 years ended December 31, 2019, 2020 and 2021 of derivatives that were not designated as hedging instruments (in millions): Amount of Gain (Loss) Year Ended December 31, Derivative Instrument Location of Gain (Loss) 2019 2020 2021 Commodity derivatives contracts Product sales revenue $ (66.5) $ 53.2 $ (143.2) Commodity derivatives contracts Cost of product sales (0.2) 0.3 21.1 Basis derivative agreement Other operating income (expense) (10.2) (4.3) (5.6) Total $ (76.9) $ 49.2 $ (127.7) 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, 2020 and 2021 (in millions): December 31, 2020 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Commodity derivatives contracts Commodity derivatives contracts, net $ 0.1 Commodity derivatives contracts, net $ 21.7 Commodity derivatives contracts Other noncurrent assets 1.1 Other noncurrent liabilities — Basis derivative agreement Other current assets — Other current liabilities 8.8 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 1.4 Total $ 1.2 Total $ 31.9 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

Fair Value Disclosures

Fair Value Disclosures	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Disclosures	Fair Value Disclosures 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 14 – 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 are 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 14 - 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. • Long-term receivables. These include payments receivable under a sales-type leasing arrangement and cost reimbursement agreements. 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 December 31, 2021, 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 Partners, L.P. (“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, 2020 and 2021; 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, 2020 and 2021, based on the three levels established by ASC 820; Fair Value Measurements and Disclosures (in millions): Fair Value Measurements as of Assets (Liabilities) Carrying Amount Fair Value Quoted Prices in Significant Other Significant Commodity derivatives contracts $ (20.5) $ (20.5) $ (20.5) $ — $ — Basis derivative agreement $ (10.2) $ (10.2) $ — $ (10.2) $ — Long-term receivables $ 22.8 $ 22.8 $ — $ — $ 22.8 Contractual obligations $ (11.2) $ (11.2) $ — $ — $ (11.2) Debt $ (4,978.7) $ (5,880.9) $ — $ (5,880.9) $ — Fair Value Measurements as of Assets (Liabilities) Carrying Amount Fair Value Quoted Prices in Significant Other 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) $ —

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Certain conditions may exist as of the date our consolidated financial statements are issued that could result in a loss to us, but which will only be resolved when one or more future events occur or fail to occur. Our management assesses such contingent liabilities, which inherently involves significant judgment. In assessing loss contingencies related to legal proceedings that are pending against us or for unasserted claims that may result in proceedings, our management, with input from legal counsel, evaluates the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought therein. Environmental expenditures are charged to operating expense or capitalized based on the nature of the expenditures. We record environmental liabilities independently of any potential claim for recovery. Accruals related to environmental matters are generally determined based on site-specific plans for remediation, taking into account currently available facts, existing technologies and presently enacted laws and regulations. Accruals for environmental matters reflect our prior remediation experience and include an estimate for costs such as fees paid to contractors, outside engineering and consulting firms. Accruals for estimated losses from environmental remediation obligations generally are recognized no later than completion of the remediation feasibility study. Such accruals are adjusted as further information develops or circumstances change. The determination of the accrual amounts recorded for environmental liabilities includes significant judgments and assumptions made by management. The use of alternate judgments and assumptions could result in the recognition of different levels of environmental remediation costs. We maintain specific insurance coverage, which may cover all or portions of certain environmental expenditures less a deductible. We recognize receivables in cases where we consider the realization of reimbursements of remediation costs as probable. We recognize liabilities for other commitments and contingencies when, after analyzing the available information, we determine it is probable that an asset has been impaired, or that a liability has been incurred and the amount of impairment or loss can be reasonably estimated. When we can estimate a range of probable loss, we accrue the most likely amount within that range, or if no amount is more likely than another, we accrue the minimum of the range of probable loss. We expense legal costs associated with loss contingencies as incurred. 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 Midstream Partners, L.P. (“Magellan”) and Powder Springs Logistics, LLC (“Powder Springs”) are infringing patents relating to butane blending at the Powder Springs facility located in Powder Springs, Georgia. Sunoco subsequently submitted pleadings alleging that Magellan is also infringing various patents related to butane blending at eight Magellan facilities, in addition to Powder Springs. Sunoco sought monetary damages, attorneys’ fees and a permanent injunction enjoining Powder Springs from infringing the subject patents. We have vigorously defended against all claims asserted by Sunoco. A jury trial concluded on December 6, 2021, at which the jury found Magellan willfully infringed the three patents in suit and awarded damages of approximately $9.4 million against Magellan relating to the eight Magellan facilities at issue. The jury further found that Powder Springs willfully infringed the one patent at issue relating to the Powder Springs facility and awarded approximately $2.8 million against Magellan and Powder Springs relating to that facility. Sunoco requested that the the court enhance the damages award based upon the jury’s finding of willfulness, and that the court award additional damages and pre- and post-judgment interest. Magellan and Powder Springs have filed post-trial pleadings opposing Sunoco’s request for enhanced damages and to otherwise challenge the finding of liability and willfulness. The final determination of the trial court is subject to potential future appeals by either or both parties to the litigation.The amounts we have accrued in relation to the claims are immaterial, and although it is not possible to predict the ultimate outcome, we believe the final resolution of this matter will not have a material adverse impact on our results of operations, financial position or cash flows. Environmental Liabilities Liabilities recognized for estimated environmental costs were $13.5 million and $9.8 million at December 31, 2020 and December 31, 2021, respectively. 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 $3.8 million, $3.4 million and $3.2 million for the years ended December 31, 2019, 2020 and 2021, respectively. 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 in New Haven, Connecticut. At December 31, 2020 our consolidated balance sheets included a current liability of $0.6 million and a noncurrent liability of $10.2 million, and as of December 31, 2021, our consolidated balance sheets reflected a current liability of $0.5 million and a noncurrent liability of $8.9 million, reflecting the fair values of these obligations. We have entered into an agreement to guarantee our 50% pro rata share, up to $25.0 million, of contractual obligations under Powder Springs’ credit facility. As of December 31, 2020 and 2021, our consolidated balance sheets reflected a $0.4 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. We and the non-controlled entities in which we own an interest are a party to various other claims, legal actions and complaints. While the results cannot be predicted with certainty, management believes the ultimate resolution of these claims, legal actions and complaints after consideration of amounts accrued, insurance coverage or other indemnification arrangements will not have a material adverse effect on our business.

Concentration of Risks

Concentration of Risks	12 Months Ended
	Dec. 31, 2021
Risks and Uncertainties [Abstract]
Concentration of Risks	Concentration of Risks We transport, store and distribute petroleum products for refiners, producers, marketers, traders and end users of those products. Our revenue producing activities are concentrated in the central U.S. Concentrations of customers may affect our overall credit risk as our customers may be similarly affected by changes in economic, regulatory or other factors. We generally secure transportation and storage revenue with warehouseman’s liens. We periodically evaluate the financial condition and creditworthiness of our customers and require additional security as we deem necessary. As of December 31, 2021, we had 1,715 employees, primarily concentrated in the central and Gulf Coast regions of the U.S. There were 854 employees assigned to our refined products segment, 253 employees assigned to our crude oil segment and 526 employees assigned to provide G&A services. We also had 82 employees assigned to our discontinued operations. Approximately 13% of our employees are represented by the United Steel Workers and covered by a collective bargaining agreement that expired at the end of January 2022.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Stacy Methvin is an independent member of our general partner’s board of directors and also serves as a director of one of our customers. We received tariff, terminalling and other ancillary revenue from this customer of $29.6 million, $37.4 million and $65.2 million for the periods ending December 31, 2019, 2020 and 2021, respectively. We recorded a receivable of $3.9 million and $5.4 million from this customer at December 31, 2020 and 2021, respectively. We occasionally have transmix settlements with this customer as well. Additionally, we received storage and other miscellaneous revenue of $0.5 million for the period ending December 31, 2020 and $0.3 million for the period ending December 31, 2021 from a subsidiary of a separate company for which Stacy Methvin served as a director until August 31, 2021. See Note 7 – Investments in Non-Controlled Entities and Note 11 – Leases for a discussion of transactions with our joint ventures.

Partners' Capital and Distribut

Partners' Capital and Distributions	12 Months Ended
	Dec. 31, 2021
Partners' Capital Notes [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 the repurchase program may be suspended or discontinued at any time. The following table details the changes in the number of our common units outstanding from January 1, 2019 through December 31, 2021: Common units outstanding on January 1, 2019 228,195,160 February 2019—Settlement of employee LTIP awards 199,792 During 2019—Other (1) 8,476 Common units outstanding on December 31, 2019 228,403,428 Units repurchased during 2020 (5,568,260) February 2020—Settlement of employee LTIP awards 275,093 During 2020—Other (1) 9,550 Common units outstanding on December 31, 2020 223,119,811 Units repurchased during 2021 (10,894,828) January 2021—Settlement of employee LTIP awards 150,435 During 2021—Other (1) 12,572 Common units outstanding on December 31, 2021 212,387,990 (1) Common units issued to settle the equity-based retainer paid to independent directors of our general partner. Our partnership agreement allows us to issue additional partnership securities for any partnership purpose at any time and from time to time for consideration and on terms and conditions as our general partner determines, all without approval by our unitholders. Common unitholders have the following rights, among others: • right to receive distributions of our available cash within 45 days after the end of each quarter; • right to elect the members of our board; • right to remove Magellan GP, LLC as our general partner upon a 100% vote of outstanding unitholders; • right to transfer common unit ownership to substitute common unitholders; • right to receive an annual report, containing audited financial statements and a report on those financial statements by our independent public accountants, within 120 days after the close of the fiscal year end; • right to receive information reasonably required for tax reporting purposes within 90 days after the close of the calendar year; • right to vote according to the unitholder’s percentage interest in us at any meeting that may be called by our general partner; and • right to inspect our books and records at the unitholder’s own expense. In the event of liquidation, we would distribute all property and cash in excess of that required to discharge all liabilities to the unitholders in proportion to the positive balances in their respective capital accounts. The common unitholders’ liability is generally limited to their investment. Distributions Distributions we paid during 2019, 2020 and 2021 were as follows (in millions, except per unit amounts): Payment Date Per Unit Total Distribution 2/14/2019 $ 0.9975 $ 227.8 5/15/2019 1.0050 229.5 8/14/2019 1.0125 231.3 11/14/2019 1.0200 233.0 Total $ 4.0350 $ 921.6 2/14/2020 $ 1.0275 $ 234.8 5/15/2020 1.0275 231.2 8/14/2020 1.0275 231.2 11/13/2020 1.0275 229.9 Total $ 4.1100 $ 927.1 2/12/2021 $ 1.0275 $ 229.4 5/14/2021 1.0275 229.0 8/13/2021 1.0275 226.6 11/12/2021 1.0375 221.4 Total $ 4.1200 $ 906.4

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Recognizable events No recognizable events have occurred subsequent to December 31, 2021. Non-recognizable events On January 25, 2022, Michael N. Mears notified the partnership of his decision to retire from his positions of President, Chief Executive Officer and Chairman of the Board of Directors effective on April 30, 2022. Our board elected Barry R. Pearl, currently the independent Lead Director, as Chairman of the Board and also elected Aaron L. Milford as Chief Executive Officer and President effective May 1, 2022. Mr. Milford currently serves as Chief Operating Officer and has served in such capacity since 2019. He served as Senior Vice President and Chief Financial Officer from 2015 to 2019 and various positions of increasing responsibility since joining us and our predecessor in 1995. Approximately 13% of our employees are represented by the United Steel Workers and covered by a collective bargaining agreement that expired at the end of January 2022. We are operating under a 24-hour rolling extension of this agreement while negotiations for a new agreement continue.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation. Our consolidated financial statements include our refined products and crude oil operating segments. We consolidate all entities in which we have a controlling ownership interest. We apply the equity method of accounting to investments in entities over which we exercise significant influence but do not control. We eliminate all intercompany transactions.
Reclassifications	Reclassifications. Certain prior period amounts have been reclassified to conform with the current period’s presentation, including amounts related to our discontinued operations.
Use of Estimates	Use of Estimates. The preparation of our consolidated financial statements in conformity with U.S. generally accepted accounting principles (“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.
Cash Equivalents	Cash Equivalents. Cash and cash equivalents include demand and time deposits and funds that own highly marketable securities with original maturities of three months or less when acquired. We periodically assess the financial condition of the institutions where we hold these funds, and at December 31, 2020 and 2021, we believed our credit risk relative to these funds was minimal.
Restricted Cash	Restricted Cash. Restricted cash includes cash that we are contractually required to use for the construction of fixed assets and is unavailable for general use. It is classified as noncurrent due to its designation to be used for the construction of noncurrent assets.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivable and Allowance for Doubtful Accounts. Accounts receivable represent valid claims against customers. We recognize accounts receivable when we sell products or render services and collection of the receivable is probable. We extend credit terms to certain customers after a review of various credit indicators. We establish an allowance for doubtful accounts using an expected credit loss approach and evaluate reserves no less than quarterly to determine their adequacy. Judgments relative to at-risk accounts include the customers’ current financial condition, the customers’ historical relationship with us and current and projected economic conditions. We write off accounts receivable when we deem an account uncollectible.
Product Overages and Shortages	Product Overages and Shortages. Each period end we measure the volume of each type of product in our pipeline systems and terminals, which is compared to the volumes of our customers’ inventories (as adjusted for tender deductions). To the extent the product volumes in our pipeline systems and terminals exceed the volumes of our customers’ book inventories, we recognize a gain from the product overage and increase our product inventories. To the extent the product in our pipeline systems and terminals is less than our customers’ book inventories, we
Income Taxes	Income Taxes. We are a partnership for income tax purposes and therefore are not subject to federal or state income taxes for most of the states in which we operate. The tax on our net income is borne by our unitholders through allocation to them of their share of our taxable income. Net income for financial statement purposes may differ significantly from taxable income allocated to unitholders because of differences between the tax basis and financial reporting basis of assets and liabilities and the taxable income allocation requirements under our partnership agreement. The aggregate difference in the basis of our net assets for financial and tax reporting purposes cannot be readily determined because information regarding each unitholder’s tax attributes is not available to us. The amounts recognized as provision for income taxes in our consolidated statements of income are primarily comprised of partnership-level taxes levied by the state of Texas. This tax is based on revenues less direct costs of sale for our assets apportioned to the state of Texas.
Net Income Per Unit	Net Income Per Unit. We calculate basic net income per common unit for each period by dividing net income by the weighted average number of common units outstanding. 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, which are included in the calculation of basic and diluted weighted average units outstanding and (ii) 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 long-term incentive plan, which have not yet vested in periods where contingent performance metrics have been met.
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.
Revenue	Revenue is recognized upon the satisfaction of each performance obligation required by our customer contracts. Transportation and terminals revenue is recognized over time as our customers receive the benefits of our service as it is performed on their behalf using an output method based on actual deliveries. Revenue for our storage services is recognized over time using an output method based on the capacity of storage under contract with our customers. Product sales revenue is recognized at a point in time when our customers take control of the commodities purchased. We record back-to-back purchases and sales of petroleum products on a net basis. We recognize pipeline transportation revenue for crude oil shipments when our customers’ product arrives at the customer-designated destination. For shipments of refined products under published tariffs that combine transportation and terminalling services, we recognize revenue when our customers take delivery of their product from our system. For shipments where terminalling services are not included in the tariff, we recognize revenue when our customers’ product arrives at the customer-designated destination. We have certain contracts that require counterparties to ship a minimum volume over an agreed-upon time period, which are contracted as minimum dollar or volume commitments. Revenue pursuant to these take-or-pay contracts is recognized when the customers utilize their committed volumes. Additionally, when we estimate that the customers will not utilize all or a portion of their committed volumes, we recognize revenue in proportion to the pattern of exercised rights for the respective commitment period. Our interstate common carrier pipeline operations are subject to rate regulation by the Federal Energy Regulatory Commission (“FERC”) under the Interstate Commerce Act, the Energy Policy Act of 1992 and related rules and orders. FERC regulation requires that interstate pipeline rates be filed with the FERC, be posted publicly, be “just and reasonable” and not be unduly discriminatory. The rates on approximately 30% of the shipments on our refined products pipeline system are regulated by the FERC primarily through an index methodology. As an alternative to cost-of-service or index-based rates, interstate liquid pipeline companies may establish rates by obtaining authority to charge market-based rates in competitive markets or by negotiation with unaffiliated shippers. Approximately 70% of our refined products pipeline system’s markets are either subject to regulations by the states in which we operate or are approved for market-based rates by the FERC, and in both cases these rates can generally be adjusted at our discretion based on market factors. Most of the tariffs on our crude oil pipelines are established by negotiated rates that generally provide for annual adjustments in line with changes in the FERC index, subject to certain modifications. For both our index-based rates and our market-based rates, our published tariffs serve as contracts, and shippers nominate the volume to be shipped up to a month in advance. These tariffs include provisions which allow us to deduct from our customer’s inventory a small percentage of the products our customers transport on our pipeline systems. We refer to this non-monetary consideration as tender deduction revenue. We receive tender deductions from our customers as consideration for product losses during the transportation of petroleum products within our pipeline systems. Tender deduction revenue is generally recognized as transportation revenue when the customer's transported commodities reach their destination and is recorded at the fair value of the product received on the date received or the contract date, as applicable. Product sales revenue pricing is contractually specified, and we have determined that each barrel sold represents a separate performance obligation. Transaction prices for our other services, including terminalling, storage and ancillary services, are typically contracted as a single performance obligation with our customers. In circumstances where multiple performance obligations are contractually required, we allocate the transaction price to the various performance obligations based on their relative standalone selling price.
Property, Plant and Equipment	Property, plant and equipment consists primarily of pipeline, pipeline-related equipment, storage tanks and processing equipment. We state property, plant and equipment at cost except for certain acquired assets recorded at fair value on their respective acquisition dates and impaired assets. We record impaired assets at fair value on the last impairment evaluation date for which an adjustment was required. We assign asset lives based on reasonable estimates when we place an asset into service. Subsequent events could cause us to change our estimates, which would affect the future calculation of depreciation expense. When we sell or retire property, plant and equipment, we remove its carrying value and the related accumulated depreciation from our accounts and record any associated gains or losses on our consolidated statements of income in the period of sale or disposition. We capitalize expenditures to replace existing assets and retire the replaced assets. We capitalize expenditures when they extend the useful life, increase the productivity or capacity, or improve the safety or efficiency of the asset. We capitalize direct project costs such as labor and materials as incurred. Indirect project costs, such as overhead, are capitalized based on a percentage of direct labor charged to the respective capital project. We charge expenditures for maintenance, repairs and minor replacements to operating expense in the period incurred.
Impairment of Long-Lived Assets	Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. In reviewing for impairment, the carrying value of such assets is compared to the estimated undiscounted future cash flows expected from the use of the assets and their eventual disposition. If such cash flows are not sufficient to support the asset’s recorded value, an impairment charge is recognized to reduce the carrying value of the long-lived asset to its estimated fair value. The determination of future cash flows as well as the estimated fair value of long-lived assets involves significant estimates on the part of management.
Goodwill	We record the excess of purchase price over the fair value of the tangible and identifiable intangible assets acquired and liabilities assumed in a business acquisition (or combination) as goodwill. The goodwill relating to each of our reporting units is tested for impairment annually as well as when an event or change in circumstances indicates an impairment may have occurred.For purposes of performing the impairment test for goodwill, our reporting units are our refined products and crude oil segments.
Other Intangibles	Other intangible assets with finite lives are amortized over their estimated useful lives of 7 years up to 30 years. The weighted average asset life of our other intangible assets at December 31, 2021 was approximately 16 years. We adjust the useful lives of our other intangible assets if events or circumstances indicate there has been a change in the remaining useful lives. We eliminate from our balance sheets the gross carrying amount and the related accumulated amortization for any fully amortized intangibles in the year they are fully amortized.
Investments in Non-Controlled Entities	We account for interests in affiliates that we do not control using the equity method of accounting. Under this method, an investment is recorded at our acquisition cost or capital contributions, as adjusted by contractual terms, plus equity in earnings or losses since acquisition or formation, plus interest capitalized, less distributions received and amortization of interest capitalized and excess net investment. Excess net investment is the amount by which our investment in a non-controlled entity exceeded our proportionate share of the book value of the net assets of that investment. We amortize excess net investment over the weighted average depreciable asset lives of the equity investee. Our unamortized excess net investment was $33.0 million and $32.0 million at December 31, 2020 and 2021, respectively. The amount of unamortized excess investment is primarily related to our investment in BridgeTex. We evaluate equity method investments for impairment whenever events or circumstances indicate that there is an other-than-temporary loss in value of the investment. In the event that we determine that the loss in value of an investment is other-than-temporary, we would record a charge to earnings to adjust the carrying value to fair value. We recognized no equity investment impairments during 2019, 2020 and 2021.
Inventory	stated and relieved at the lower of average cost or net realizable value.Inventory
Lessee and Lessor Arrangements	We have both lessee and lessor arrangements. Our leases are evaluated at inception or at any subsequent modification. Depending on the terms, leases are classified as either operating or finance leases if we are the lessee, or as operating, sales-type or direct financing leases if we are the lessor, as appropriate under ASC 842, Leases . Our lessee arrangements primarily include a terminalling and storage contract where we have exclusive use of dedicated tankage, leased pipelines and office buildings. Our lessor arrangements include pipeline capacity and storage contracts and our condensate splitter tolling agreement that qualify as operating leases under ASC 842. In addition, we have a long-term throughput and deficiency agreement with a customer that is being accounted for as a sales-type lease under ASC 842. In accordance with ASC 842, we have made an accounting policy election to not apply the standard to lessee arrangements with a term of one year or less and no purchase option that is reasonably certain of exercise. We will continue to account for these short-term arrangements by recognizing payments and expenses as incurred, without recording a lease liability and right-of-use asset. We have also made an accounting policy election for both our lessee and lessor arrangements to combine lease and non-lease components. This election is applied to all of our lease arrangements as our non-lease components do not result in significant timing differences in the recognition of rental expenses or income.
Operating Leases – Lessee	We recognize a lease liability for each lease based on the present value of remaining minimum fixed rental payments (which includes payments under any renewal option that we are reasonably certain to exercise), using a discount rate that approximates the rate of interest we would have to pay to borrow on a collateralized basis over a similar term. We also recognize a right-of-use asset for each lease, valued at the lease liability, adjusted for prepaid or accrued rent balances existing at the time of initial recognition. The lease liability and right-of-use asset are reduced over the term of the lease as payments are made and the assets are used. Related Party Operating Lease . We entered into a long-term terminalling and storage contract with Seabrook for 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.
Employee Benefit Plans	Our pension and postretirement benefit liabilities represent the funded status of the present value of benefit obligations of our employee benefit plans. We develop pension, postretirement medical and life benefit costs from third-party actuarial valuations. We establish actuarial assumptions to anticipate future events and use those assumptions when calculating the expense and liabilities related to these plans. These factors include assumptions management makes concerning expected investment return on plan assets, discount rates, health care costs trend rates, turnover rates and rates of future compensation increases, among others. In addition, we use subjective factors such as withdrawal and mortality rates to develop actuarial valuations. Management reviews and updates these assumptions on an annual basis. The actuarial assumptions that we use may differ from actual results due to changing market rates or other factors. These differences could affect the amount of pension and postretirement medical and life benefit expense we will recognize in future periods.
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 general partner. In April 2021, our compensation committee and our limited partners approved an amendment to the LTIP increasing the number of common units available for issuance from 11.9 million to 13.7 million. The LTIP primarily consists of phantom units. The estimated units remaining available under the LTIP at December 31, 2021 totaled approximately 2.4 million. The awards include: (i) performance-based awards issued to certain officers and other key employees (“performance-based awards”), (ii) time-based awards issued to certain officers and other key employees (“time-based awards,” and together with performance-based awards, “employee awards”) and (iii) awards issued to independent members of our board (“director awards”) that may be deferred and if deferred may be paid in cash. All of the awards include distribution equivalent rights, except non-deferred director awards. The LTIP requires employee awards to be settled in our common units, except the settlement of distribution equivalents, which we pay in cash. As a result, we classify employee awards as equity. Fair value for these awards is determined on the grant date, and we recognize this value as compensation expense ratably over the requisite service period, which is the vesting period of each award. The vesting period for employee awards is generally three years; however, certain awards have been issued with shorter vesting periods while others have vesting periods of up to four years. Because employee awards contain distribution equivalent rights, the fair value of our employee awards is based on the closing price of our units on the grant date. Payouts for performance-based awards are subject to the attainment of a financial metric. Additionally, the 2019 performance-based awards, which vested on December 31, 2021, were subject to an adjustment for our total unitholder return (the “TUR adjustment”), and the fair value of these awards was adjusted for the fair value of the TUR adjustment. The TUR adjustment is based on our total unitholder return at the end of the three-year vesting period of the awards in relation to the total unitholder returns of certain peer entities. The financial metric for the performance-based awards is our distributable cash flow per unit excluding commodity-related activities for the last year of the three-year vesting period as compared to established threshold, target and stretch levels. The payouts for the performance-related component of the awards can range from 0%, for results below threshold, up to 200%, for actual results at stretch or above. Payouts related to time-based awards are based solely on the completion of the requisite service period by the employee and contain no provisions that provide for a payout other than the original number of units awarded and the associated distribution equivalents. Performance-based awards are subject to forfeiture if a participant’s employment is terminated for any reason other than for termination within two years of a change-in-control that occurs on an involuntary basis without cause or on a voluntary basis for good cause, or due to retirement, disability or death prior to the vesting date. These awards can vest early under certain circumstances following a change in control. Time-based awards are subject to forfeiture if a participant’s employment is terminated for any reason other than retirement, death or disability prior to the vesting date, or as the result of certain other employment restrictions. If an employee award recipient retires, dies or becomes disabled prior to the end of the vesting period, the award is prorated based upon months of employment completed during the vesting period, and the award is settled shortly after the end of the vesting period. Compensation expense for our equity awards is calculated as the number of unit awards less forfeitures, multiplied by the grant date fair value of those awards, multiplied by the percentage of the requisite service period completed at each period end, multiplied by the expected payout percentage, less previously-recognized compensation expense.
Derivative Financial Instruments	We use derivative instruments to manage market price risks associated with inventories, interest rates and certain forecasted transactions. For those instruments that qualify for hedge accounting, the accounting treatment depends on their intended use and their designation. We classify derivative financial instruments qualifying for hedge accounting treatment into two categories: (1) cash flow hedges and (2) fair value hedges. We execute cash flow hedges to hedge against the variability in cash flows related to a forecasted transaction and execute fair value hedges to hedge against the changes in the value of a recognized asset or liability. At the inception of a hedged transaction, we document the relationship between the hedging instrument and the hedged item, the risk management objectives and the methods used for assessing and testing hedge effectiveness. We also assess, both at the inception of the hedge and on an on-going basis, whether the derivatives that are used in our hedging transactions are highly effective in offsetting changes in cash flows or fair value of the hedged item. If we determine that a derivative originally designated as a cash flow or fair value hedge is no longer highly effective, we discontinue hedge accounting prospectively and record the change in the fair value of the derivative in current earnings. The changes in fair value of derivative financial instruments that are not designated as hedges for accounting purposes, which we refer to as economic hedges, are included in current earnings. As part of our risk management process, we assess the creditworthiness of the financial and other institutions with which we execute financial derivatives. Such financial instruments involve the risk of non-performance by the counterparty, which could result in material losses to us.
Commitments and Contingencies	Certain conditions may exist as of the date our consolidated financial statements are issued that could result in a loss to us, but which will only be resolved when one or more future events occur or fail to occur. Our management assesses such contingent liabilities, which inherently involves significant judgment. In assessing loss contingencies related to legal proceedings that are pending against us or for unasserted claims that may result in proceedings, our management, with input from legal counsel, evaluates the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought therein. Environmental expenditures are charged to operating expense or capitalized based on the nature of the expenditures. We record environmental liabilities independently of any potential claim for recovery. Accruals related to environmental matters are generally determined based on site-specific plans for remediation, taking into account currently available facts, existing technologies and presently enacted laws and regulations. Accruals for environmental matters reflect our prior remediation experience and include an estimate for costs such as fees paid to contractors, outside engineering and consulting firms. Accruals for estimated losses from environmental remediation obligations generally are recognized no later than completion of the remediation feasibility study. Such accruals are adjusted as further information develops or circumstances change. The determination of the accrual amounts recorded for environmental liabilities includes significant judgments and assumptions made by management. The use of alternate judgments and assumptions could result in the recognition of different levels of environmental remediation costs. We maintain specific insurance coverage, which may cover all or portions of certain environmental expenditures less a deductible. We recognize receivables in cases where we consider the realization of reimbursements of remediation costs as probable.

Discontinued Operations and A_2

Discontinued Operations and Assets Held for Sale (Tables)	12 Months Ended
	Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations	The following table provides the summarized results that have been reclassified from continuing operations to discontinued operations on the consolidated statements of income for the years ended December 31, 2019, 2020 and 2021 (in millions): Year Ended December 31, 2019 2020 2021 Transportation and terminals revenue $ 56.8 $ 51.4 $ 53.3 Product sales revenue 70.3 54.2 83.7 Total revenue 127.1 105.6 137.0 Costs and expenses: Operating 17.9 13.4 11.2 Cost of product sales 58.5 45.5 66.5 Depreciation, amortization and impairment 15.4 15.6 7.1 General and administrative 2.5 2.2 2.5 Total costs and expenses 94.3 76.7 87.3 Income from discontinued operations $ 32.8 $ 28.9 $ 49.7 The following table provides the summarized assets and liabilities classified as held for sale on the consolidated balance sheets as of December 31, 2020 and 2021 (in millions): Year Ended December 31, 2020 2021 Assets: Trade accounts receivable $ 5.6 $ 6.3 Inventory 9.2 17.0 Net property, plant and equipment 274.9 272.0 Goodwill 2.7 2.7 Other assets 0.3 1.5 Total assets classified as held for sale $ 292.7 $ 299.5 Liabilities: Accounts payable $ 2.0 $ 3.7 Accrued product liabilities 4.0 8.4 Other liabilities 3.9 3.7 Total liabilities classified as held for sale $ 9.9 $ 15.8

Segment Disclosures (Tables)

Segment Disclosures (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Segment Reporting Information by Segment	Year Ended December 31, 2019 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,299.0 $ 620.3 $ (5.4) $ 1,913.9 Product sales revenue 637.5 28.3 — 665.8 Affiliate management fee revenue 6.7 14.5 — 21.2 Total revenue 1,943.2 663.1 (5.4) 2,600.9 Operating expense 454.0 173.3 (10.9) 616.4 Cost of product sales 532.8 28.1 — 560.9 Other operating (income) expense (10.2) 7.2 — (3.0) Earnings of non-controlled entities (8.1) (160.9) — (169.0) Operating margin 974.7 615.4 5.5 1,595.6 Depreciation, amortization and impairment expense 158.7 66.5 5.5 230.7 G&A expense 138.3 55.9 — 194.2 Operating profit $ 677.7 $ 493.0 $ — $ 1,170.7 Additions to long-lived assets $ 785.1 $ 74.2 $ 859.3 As of December 31, 2019 (in millions) Segment assets $ 5,116.4 $ 2,894.7 $ 8,011.1 Assets held for sale 295.5 Corporate assets 131.1 Total assets $ 8,437.7 Goodwill $ 38.5 $ 12.1 $ 50.6 Investments in non-controlled entities $ 422.4 $ 818.2 $ 1,240.6 Year Ended December 31, 2020 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,190.4 $ 559.5 $ (6.6) $ 1,743.3 Product sales revenue 524.4 33.1 — 557.5 Affiliate management fee revenue 6.3 14.9 — 21.2 Total revenue 1,721.1 607.5 (6.6) 2,322.0 Operating expense 411.8 189.2 (13.2) 587.8 Cost of product sales 425.8 42.4 — 468.2 Other operating (income) expense (3.2) 3.1 — (0.1) Earnings of non-controlled entities (32.5) (120.8) — (153.3) Operating margin 919.2 493.6 6.6 1,419.4 Depreciation, amortization and impairment expense 159.9 76.6 6.6 243.1 G&A expense 123.5 47.7 — 171.2 Operating profit $ 635.8 $ 369.3 $ — $ 1,005.1 Additions to long-lived assets $ 277.5 $ 56.4 $ 333.9 As of December 31, 2020 (in millions) Segment assets $ 4,977.0 $ 2,836.9 $ 7,813.9 Assets held for sale 292.7 Corporate assets 90.4 Total assets $ 8,197.0 Goodwill $ 38.0 $ 12.1 $ 50.1 Investments in non-controlled entities $ 429.2 $ 784.7 $ 1,213.9 Year Ended December 31, 2021 (in millions) Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,338.5 $ 466.2 $ (5.8) $ 1,798.9 Product sales revenue 763.9 149.1 — 913.0 Affiliate management fee revenue 6.4 14.8 — 21.2 Total revenue 2,108.8 630.1 (5.8) 2,733.1 Operating expense 416.7 165.4 (12.4) 569.7 Cost of product sales 630.1 149.9 — 780.0 Other operating (income) expense (6.9) 4.1 — (2.8) Earnings of non-controlled entities (34.4) (120.0) — (154.4) Operating margin 1,103.3 430.7 6.6 1,540.6 Depreciation, amortization and impairment expense 153.9 67.4 6.6 227.9 G&A expense 147.8 58.5 — 206.3 Operating profit $ 801.6 $ 304.8 $ — $ 1,106.4 Additions to long-lived assets $ 88.9 $ 41.1 $ 130.0 As of December 31, 2021 (in millions) Segment assets $ 4,880.0 $ 2,780.7 $ 7,660.7 Assets held for sale 299.5 Corporate assets 69.8 Total assets $ 8,030.0 Goodwill $ 38.0 $ 12.1 $ 50.1 Investments in non-controlled entities $ 232.8 $ 748.0 $ 980.8

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables provide details of our revenue disaggregated by key activities that comprise our performance obligations by operating segment (in millions): Year Ended December 31, 2019 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 787.7 $ 381.6 $ — $ 1,169.3 Terminalling 139.9 17.8 — 157.7 Storage 214.9 119.3 (5.4) 328.8 Ancillary services 128.6 28.4 — 157.0 Lease revenue 27.9 73.2 — 101.1 Transportation and terminals revenue 1,299.0 620.3 (5.4) 1,913.9 Product sales revenue 637.5 28.3 — 665.8 Affiliate management fee revenue 6.7 14.5 — 21.2 Total revenue 1,943.2 663.1 (5.4) 2,600.9 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (27.9) (73.2) — (101.1) (Gains) losses from futures contracts included in product sales revenue 63.5 3.0 — 66.5 Affiliate management fee revenue (6.7) (14.5) — (21.2) Total revenue from contracts with customers under ASC 606 $ 1,972.1 $ 578.4 $ (5.4) $ 2,545.1 Year Ended December 31, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 742.9 $ 305.4 $ — $ 1,048.3 Terminalling 109.6 21.5 — 131.1 Storage 199.3 129.0 (6.6) 321.7 Ancillary services 114.9 26.9 — 141.8 Lease revenue 23.7 76.7 — 100.4 Transportation and terminals revenue 1,190.4 559.5 (6.6) 1,743.3 Product sales revenue 524.4 33.1 — 557.5 Affiliate management fee revenue 6.3 14.9 — 21.2 Total revenue 1,721.1 607.5 (6.6) 2,322.0 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (23.7) (76.7) — (100.4) (Gains) losses from futures contracts included in product sales revenue (56.8) 3.6 — (53.2) Affiliate management fee revenue (6.3) (14.9) — (21.2) Total revenue from contracts with customers under ASC 606 $ 1,634.3 $ 519.5 $ (6.6) $ 2,147.2 Year Ended December 31, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 915.7 $ 228.8 $ — $ 1,144.5 Terminalling 100.1 17.0 — 117.1 Storage 177.1 114.8 (5.8) 286.1 Ancillary services 125.2 29.9 — 155.1 Lease revenue 20.4 75.7 — 96.1 Transportation and terminals revenue 1,338.5 466.2 (5.8) 1,798.9 Product sales revenue 763.9 149.1 — 913.0 Affiliate management fee revenue 6.4 14.8 — 21.2 Total revenue 2,108.8 630.1 (5.8) 2,733.1 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (20.4) (75.7) — (96.1) (Gains) losses from futures contracts included in product sales revenue (127.2) (16.0) — (143.2) Affiliate management fee revenue (6.4) (14.8) — (21.2) Total revenue from contracts with customers under ASC 606 $ 1,954.8 $ 523.6 $ (5.8) $ 2,472.6
Contract Assets and Liabilities	The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in millions): December 31, 2020 December 31, 2021 Accounts receivable from contracts with customers $ 103.3 $ 134.8 Contract assets $ 12.2 $ 12.5 Contract liabilities $ 102.7 $ 100.1
Remaining Performance Obligation	The following table provides the aggregate amount of the transaction price allocated to our UPOs as of December 31, 2021 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 Amounts as of December 31, 2021 $ 1,874.5 $ 1,069.8 $ 2,944.3 Remaining terms 1 - 17 years 1 - 10 years Estimated revenues from UPOs to be recognized in the next 12 months $ 368.9 $ 257.4 $ 626.3

Property, Plant and Equipment_2

Property, Plant and Equipment and Other Intangibles (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment consisted of the following (in millions): Estimated Depreciable Lives December 31, 2020 2021 Construction work-in-progress $ 122.0 $ 89.5 Land and rights-of-way 373.9 374.3 Buildings 119.7 121.8 10 to 53 years Storage tanks 1,952.7 1,986.7 10 to 49 years Pipeline and station equipment 3,325.9 3,386.0 10 to 59 years Processing equipment 1,769.4 1,826.4 3 to 56 years Other 280.2 261.2 3 to 53 years Property, plant and equipment, gross $ 7,943.8 $ 8,045.9

Investments in Non-Controlled_2

Investments in Non-Controlled Entities (Tables)	12 Months Ended
	Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Our equity investments in non-controlled entities at December 31, 2021 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% In April 2021, we sold nearly half of our membership interest in MVP. As a result of the sale, we received proceeds of $272.1 million and recorded a gain of $70.4 million on our consolidated statements of income. Following the sale, we own approximately 25% of MVP and remain the operator of the facility. 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 $5.3 million, $3.6 million and $2.5 million, respectively, for the years ended December 31, 2019, 2020 and 2021. We recorded the following revenue and expense transactions from certain of these non-controlled entities in our consolidated statements of income (in millions): Year Ended December 31, 2019 2020 2021 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 41.8 $ 42.3 $ 43.7 Double Eagle, throughput revenue $ 6.2 $ 4.9 $ 3.0 Saddlehorn, storage revenue $ 2.2 $ 2.5 $ 2.3 Operating expense: Seabrook, storage lease and ancillary services $ 25.9 $ 29.1 $ 19.7 Product sales revenue: Seabrook, product sales $ 0.3 $ — $ — Other operating income: MVP, easement sale $ 0.3 $ — $ — Seabrook, gain on sale of air emission credits $ — $ 1.4 $ 0.4 Our consolidated balance sheets reflected the following balances related to our investments in non-controlled entities (in millions): December 31, 2020 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 0.4 $ — $ 1.0 $ — Double Eagle $ 0.3 $ — $ — $ — HoustonLink $ — $ — $ 0.1 $ — MVP $ — $ 0.5 $ 2.3 $ — Powder Springs $ — $ — $ — $ 10.2 Saddlehorn $ — $ 0.1 $ — $ — Seabrook $ — $ — $ 7.3 $ — December 31, 2021 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 1.2 $ — $ 0.3 $ — Double Eagle $ 0.2 $ — $ — $ — HoustonLink $ — $ — $ 0.2 $ — MVP $ — $ 0.6 $ 2.2 $ — Powder Springs $ — $ — $ — $ — Saddlehorn $ — $ 0.2 $ — $ — Seabrook $ — $ 0.1 $ 3.2 $ — We entered into a long-term terminalling and storage contract with Seabrook for 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 11 – Leases for more details regarding this lease). We also made purchases of transmix from MVP throughout the year totaling $7.6 million. 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 interests) follows (in millions): Investments at December 31, 2020 $ 1,213.9 Additional investment 5.6 Sale of ownership interests (199.8) Earnings of non-controlled entities: Proportionate share of earnings 156.2 Amortization of excess investment and capitalized interest (1.8) Earnings of non-controlled entities 154.4 Less: Distributions from operations of non-controlled entities 193.3 Investments at December 31, 2021 $ 980.8 Summarized financial information of our non-controlled entities (representing 100% of the interests in these entities) follows (in millions): December 31, 2020 2021 Current assets $ 243.8 $ 227.0 Noncurrent assets 2,846.7 2,795.7 Total assets $ 3,090.5 $ 3,022.7 Current liabilities $ 143.6 $ 178.6 Noncurrent liabilities 57.5 59.5 Total liabilities $ 201.1 $ 238.1 Equity $ 2,889.4 $ 2,784.6 Year Ended December 31, 2019 2020 2021 Revenue $ 782.0 $ 752.7 $ 733.1 Net income $ 507.5 $ 471.4 $ 463.4

Inventory (Tables)

Inventory (Tables)	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Inventory	stated and relieved at the lower of average cost or net realizable value. Inventory at December 31, 2020 and 2021 was as follows (in millions): December 31, 2020 2021 Refined products $ 72.0 $ 138.0 Crude oil 32.4 25.4 Liquefied petroleum gases 25.0 42.0 Transmix 23.4 72.4 Additives 5.4 3.3 Total inventory $ 158.2 $ 281.1

Supplemental Cash Flows Infor_2

Supplemental Cash Flows Information (Tables)	12 Months Ended
	Dec. 31, 2021
Supplemental Cash Flow Information [Abstract]
Changes in Components of Operating Assets and Liabilities	Changes in the components of operating assets and liabilities are as follows (in millions): Year Ended December 31, 2019 2020 2021 Trade accounts receivable and other accounts receivable $ (20.3) $ (0.9) $ (29.1) Inventory 2.7 14.0 (122.9) Accounts payable (1.9) 4.5 16.0 Accrued payroll and benefits 4.8 (22.3) 22.8 Accrued interest payable 1.0 (5.3) — Accrued taxes other than income 12.6 4.4 8.8 Deferred revenue (11.4) (10.7) (6.1) Accrued product liabilities 15.9 (8.5) 78.3 Other current and noncurrent assets and liabilities (1.3) (12.3) 22.5 Total $ 2.1 $ (37.1) $ (9.7)

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Consolidated Debt	Debt Long-term debt at December 31, 2020 and 2021 was as follows (in millions): December 31, 2020 2021 Commercial paper $ — $ 108.0 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 5,000.0 5,108.0 Unamortized debt issuance costs (1) (40.1) (37.8) Net unamortized debt premium (1) 18.8 18.6 Long-term debt, net $ 4,978.7 $ 5,088.8 (1) Debt issuance costs and note discounts and premiums are being amortized or accreted to the applicable notes over the respective lives of those notes.

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Lessee, Operating Lease, Liability, Maturity	Future minimum rental payments under operating leases with initial terms greater than one year as of December 31, 2021 are as follows (in millions): Third Party Leases Seabrook Lease All Leases 2022 $ 21.2 $ 9.9 $ 31.1 2023 21.4 9.9 31.3 2024 21.7 9.7 31.4 2025 21.8 6.6 28.4 2026 12.5 6.6 19.1 Thereafter 34.1 17.6 51.7 Total future minimum rental payments 132.7 60.3 193.0 Present value discount 12.1 7.8 19.9 Total operating lease liability $ 120.6 $ 52.5 $ 173.1
Lessee, Operating Lease, Disclosure	The following tables provide a summary of the effect on our consolidated statements of income for the years ended December 31, 2019, 2020 and 2021 (in millions): Year Ended December 31, 2019 Third Party Leases Seabrook Lease All Leases Fixed lease expense $ 19.2 $ 10.8 $ 30.0 Short-term lease expense 1.6 — 1.6 Variable lease expense 3.0 15.0 18.1 Total lease expense $ 23.8 $ 25.8 $ 49.7 Year Ended December 31, 2020 Third Party Leases Seabrook Lease All Leases Fixed lease expense $ 19.2 $ 14.3 $ 33.5 Short-term lease expense 1.3 — 1.3 Variable lease expense 4.1 14.8 18.9 Total lease expense $ 24.6 $ 29.1 $ 53.7 Year Ended December 31, 2021 Third Party Leases Seabrook Lease All Leases Fixed lease expense $ 21.0 $ 12.7 $ 33.7 Short-term lease expense 1.7 — 1.7 Variable lease expense 3.4 6.8 10.2 Total lease expense $ 26.1 $ 19.5 $ 45.6 The following table provides a summary of the effect on our consolidated balance sheets as of December 31, 2020 and 2021 (dollars in millions): As of and for the Year Ended December 31, 2020 December 31, 2021 Third Party Leases Seabrook Lease All Leases Third Party Leases Seabrook Lease All Leases Current lease liability $ 17.1 $ 10.4 $ 27.5 $ 17.8 $ 8.0 $ 25.8 Long-term lease liability $ 85.0 $ 52.5 $ 137.5 $ 102.8 $ 44.5 $ 147.3 Right-of-use asset $ 103.2 $ 62.9 $ 166.1 $ 121.7 $ 52.5 $ 174.2 Operating cash flows for operating leases $ 24.1 $ 29.1 $ 53.2 $ 26.2 $ 19.5 $ 45.7 Weighted average remaining lease term (years) 6 7 7 7 7 7 Weighted average discount 3.7 % 4.0 % 3.8 % 3.0 % 4.1 % 3.4 %
Lessor, Future Minimum Payments Receivable	Future minimum payments receivable under operating leases with initial terms greater than one year as of December 31, 2021 are estimated as follows (in millions): 2022 $ 24.9 2023 25.2 2024 21.9 2025 13.8 2026 13.1 Thereafter 32.9 Total $ 131.8
Leases, Investment in Direct Financing Lease	The net investment under this arrangement as of December 31, 2020 and 2021 was as follows (in millions): December 31, 2020 December 31, 2021 Total minimum lease payments receivable $ 14.0 $ 12.2 Less: Unearned income 2.3 1.8 Recorded net investment in sales-type lease $ 11.7 $ 10.4 The net investment in this sales-type lease was classified in the consolidated balance sheets as follows (in millions): December 31, 2020 December 31, 2021 Other accounts receivable $ 1.2 $ 1.3 Long-term receivables 10.5 9.1 Total $ 11.7 $ 10.4

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Changes in Benefit Obligations and Plan Assets	The following table presents the changes in benefit obligations and plan assets for pension benefits and other postretirement benefits, as well as the end-of-period accumulated benefit obligation, including amounts related to discontinued operations, for the years ended December 31, 2020 and 2021 (in millions): Pension Benefits Other Postretirement Benefits 2020 2021 2020 2021 Change in benefit obligations: Benefit obligations at beginning of year $ 381.2 $ 443.6 $ 15.2 $ 17.3 Service cost 27.7 28.2 0.3 0.3 Interest cost 11.0 9.5 0.5 0.4 Plan participants’ contributions — — 0.6 0.8 Actuarial (gain) loss 53.2 (19.4) 2.5 0.9 Benefits paid (23.1) (29.2) (1.8) (1.9) Curtailment gain (1.7) — — — Settlement payments (4.7) (9.3) — — Benefit obligations at end of year 443.6 423.4 17.3 17.8 Change in plan assets: Fair value of plan assets at beginning of year 249.2 295.7 — — Employer contributions 29.3 27.6 1.2 1.1 Plan participants’ contributions — — 0.6 0.8 Actual return on plan assets 43.6 9.7 — — Benefits paid (23.1) (29.2) (1.8) (1.9) Settlement payments (3.3) (9.3) — — Fair value of plan assets at end of year 295.7 294.5 — — Funded status at end of year $ (147.9) $ (128.9) $ (17.3) $ (17.8) Accumulated benefit obligations $ 324.8 $ 305.0
Pension Plans with Obligations in Excess of Assets	The following table summarizes information for pension plans with obligations in excess of plan assets (in millions): December 31, 2020 2021 Plans with a projected benefit obligation in excess of plan assets: Projected benefit obligation $ 443.6 $ 423.4 Fair value of plan assets $ 295.7 $ 294.5 Plans with an accumulated benefit obligation in excess of plan assets: Accumulated benefit obligation $ 324.8 $ 305.0 Fair value of plan assets $ 295.7 $ 294.5
Amounts Recognized in Consolidated Balance Sheets	Amounts recognized in the consolidated balance sheets included in these financial statements were as follows (in millions): Pension Benefits Other Postretirement Benefits 2020 2021 2020 2021 Amounts recognized in consolidated balance sheets: Current accrued benefit cost $ — $ — $ 1.4 $ 1.7 Long-term pension and benefits 147.9 128.9 15.9 16.1 147.9 128.9 17.3 17.8 Accumulated other comprehensive loss: Net actuarial loss (120.5) (95.3) (10.4) (10.7) Prior service credit 2.7 2.5 — — (117.8) (92.8) (10.4) (10.7) Net amount of liabilities and accumulated other comprehensive loss recognized in consolidated balance sheets $ 30.1 $ 36.1 $ 6.9 $ 7.1
Consolidated Net Periodic Benefit Costs	Net periodic benefit expense for the years ended December 31, 2019, 2020 and 2021 was as follows (in millions): Pension Benefits Other Postretirement Benefits 2019 2020 2021 2019 2020 2021 Components of net periodic benefit costs: Service cost $ 25.4 $ 27.7 $ 28.2 $ 0.2 $ 0.3 $ 0.3 Interest cost 12.2 11.0 9.5 0.5 0.5 0.4 Expected return on plan assets (9.4) (11.4) (11.9) — — — Amortization of prior service credit (0.2) (0.2) (0.2) — — — Amortization of actuarial loss 5.5 5.4 5.4 0.3 0.4 0.6 Settlement cost 2.6 1.0 2.6 — — — Settlement gain on disposition of assets — (1.3) — — — — Net periodic benefit cost $ 36.1 $ 32.2 $ 33.6 $ 1.0 $ 1.2 $ 1.3
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss)	Changes in plan assets and benefit obligations recognized in other comprehensive income (loss) during 2019, 2020 and 2021 were as follows (in millions): Pension Benefits Other Postretirement Benefits 2019 2020 2021 2019 2020 2021 Beginning balance $ (88.6) $ (104.7) $ (117.8) $ (5.4) $ (8.4) $ (10.4) Net actuarial gain (loss) (24.0) (21.0) 17.2 (3.3) (2.5) (0.9) Amortization of prior service credit (0.2) (0.2) (0.2) — — — Amortization of actuarial loss 5.5 5.4 5.4 0.3 0.5 0.6 Curtailment gain — 1.7 — — — — Settlement cost 2.6 1.0 2.6 — — — Amount recognized in other comprehensive loss (16.1) (13.1) 25.0 (3.0) (2.0) (0.3) Ending balance $ (104.7) $ (117.8) $ (92.8) $ (8.4) $ (10.4) $ (10.7)
Weighted-Average Rate Assumptions Used and Investment Strategies	The weighted average rate assumptions used to determine projected benefit obligations were as follows: Pension Benefits Other Postretirement Benefits 2020 2021 2020 2021 Discount rate 2.23% 2.61% 2.30% 2.64% Rate of compensation increase 4.53% 6.51% n/a n/a Cash balance interest crediting rate 1.70% 1.94% n/a n/a The weighted average rate assumptions used to determine net pension and other postretirement benefit plans expense were as follows: Pension Benefits Other Postretirement Benefits For the Year Ended December 31, For the Year Ended December 31, 2019 2020 2021 2019 2020 2021 Discount rate 3.98% 3.01% 2.23% 4.08% 3.06% 2.30% Rate of compensation increase 6.48% 4.58% 4.53% n/a n/a n/a Expected rate of return on plan assets 6.00% 4.50% 4.10% n/a n/a n/a Cash balance interest crediting rate 2.78% 2.16% 1.70% n/a n/a n/a The investment strategies for the various funds held as pension plan assets by asset category are as follows: Asset Category Fund’s Investment Strategy Domestic equity securities: Small-cap fund Seeks to track performance of the Center for Research in Security Prices (“CRSP”) US Small Cap Index Mid-cap fund Seeks to track performance of the CRSP US Mid Cap Index Large-cap fund Seeks to track performance of the Standard & Poor’s 500 Index International equity fund Seeks to track performance of the FTSE Global All Cap ex US Index Fixed income securities: Short-term bond fund Seeks current income with limited price volatility through investment in primarily high quality bonds with short-term maturities Intermediate-term bond fund Seeks moderate and sustainable level of current income by investing primarily in high quality fixed income securities with maturities from five to ten years Long-term investment grade bond funds Seek high and sustainable current income through investment primarily in long-term investment grade debt securities Other: Short-term investment funds Invest in high quality short-term money market instruments issued by the U.S. Treasury Group annuity contract Earns interest quarterly equal to the effective yield of the 91-day U.S. Treasury bill
Fair Value and Allocation of Pension Plan Assets	The fair values of the pension plan assets at December 31, 2020 were as follows (in millions): Asset Category Total Quoted Prices in Active Markets for Significant Significant Domestic equity securities: (1) Small-cap fund $ 5.8 $ 5.8 $ — $ — Mid-cap fund 5.8 5.8 — — Large-cap fund 47.6 47.6 — — International equity fund 29.9 29.9 — — Fixed income securities: (1) Short-term bond fund 4.2 4.2 — — Intermediate-term bond fund 34.9 34.9 — — Long-term investment grade bond funds 161.0 161.0 — — Other: Short-term investment fund 6.3 6.3 — — Group annuity contract 0.2 — — 0.2 Fair value of plan assets $ 295.7 $ 295.5 $ — $ 0.2 (1) We hold equity and fixed income securities through investments in mutual funds, which are dedicated to each category as indicated. The fair values of the pension plan assets at December 31, 2021 were as follows (in millions): Asset Category Total Quoted Prices in Active Markets for Significant Significant Domestic equity securities (1) : Small-cap fund $ 6.1 $ 6.1 $ — $ — Mid-cap fund 6.0 6.0 — — Large-cap fund 48.0 48.0 — — International equity fund 30.1 30.1 — — Fixed income securities (1) : Long-term investment grade bond funds 197.1 197.1 — — Other: Short-term investment fund 7.0 7.0 — — Group annuity contract 0.2 — — 0.2 Fair value of plan assets $ 294.5 $ 294.3 $ — $ 0.2 (1) We hold equity and fixed income securities through investments in mutual funds, which are dedicated to each category as indicated. The target allocation and actual weighted average asset allocation percentages at December 31, 2020 and 2021 were as follows: 2020 2021 Actual Target Actual Target Equity securities 30% 30% 30% 30% Fixed income securities 68% 67% 67% 70% Other 2% 3% 3% —%
Expected Benefit Payments	As of December 31, 2021, the benefit amounts expected to be paid from plan assets through December 31, 2031 were as follows (in millions): Pension Other 2022 $ 16.2 $ 1.7 2023 $ 18.1 $ 1.5 2024 $ 21.6 $ 1.3 2025 $ 22.4 $ 1.3 2026 $ 27.4 $ 1.2 2027 through 2031 $ 147.9 $ 4.0

Long-Term Incentive Plan (Table

Long-Term Incentive Plan (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Changes in Non-Vested Unit Awards	The amounts below do not include adjustments for above-target or below-target performance. Performance-Based Awards Time-Based Awards Total Awards Number of Unit Weighted Average Fair Value Number of Unit Weighted Average Fair Value Number of Unit Weighted Average Fair Value Non-vested units - 1/1/2021 340,164 $ 62.35 353,544 $ 61.07 693,708 $ 61.70 Units granted during 2021 281,823 $ 40.85 301,873 $ 40.99 583,696 $ 40.92 Units vested during 2021 (161,484) $ 63.62 (168,204) $ 60.76 (329,688) $ 62.16 Units forfeited during 2021 (14,578) $ 51.23 (16,699) $ 50.92 (31,277) $ 51.06 Non-vested units - 12/31/21 445,925 $ 48.66 470,514 $ 48.67 916,439 $ 48.67
Total Non-Vested Unit Awards	The table below summarizes the total non-vested unit awards outstanding, including estimated targeted financial performance adjustments, to determine our total equity-based liability accrual. Grant Date Non-Vested Unit Awards Performance Adjustment to Unit Awards Total Unit Award Accrual Vesting Date Unrecognized Compensation Expense (in millions) (a) Performance-based awards: 2020 awards 171,400 (51,420) 119,980 12/31/2022 $ 2.4 2021 awards 274,525 68,631 343,156 12/31/2023 9.3 Time-based awards: 2022 vesting date 178,911 — 178,911 12/31/2022 3.7 2023 vesting date 291,603 — 291,603 12/31/2023 8.3 Total 916,439 17,211 933,650 $ 23.7 (a) Unrecognized compensation expense will be recognized over the remaining vesting period of the awards .
Weighted-Average Grant Date Fair Values	The weighted average fair value of awards granted during 2019, 2020 and 2021 was as follows: Performance-Based Awards Time-Based Awards Number of Weighted Average Fair Value Number of Unit Weighted Average Fair Value Units granted during 2019 182,834 $ 63.65 195,031 $ 62.91 Units granted during 2020 189,632 $ 61.16 198,450 $ 61.18 Units granted during 2021 281,823 $ 40.85 301,873 $ 40.99
Vested Unit Awards	The table below sets forth the numbers and values of units that vested in each of the three years ended December 31, 2021. The vested common units include adjustments for above-target financial and market performance. Vesting Date Vested Fair Value of Unit Awards on Vesting Date (in millions) Intrinsic Value of Unit Awards on Vesting Date (in millions) 12/31/2019 436,629 $31.0 $27.5 12/31/2020 235,127 $15.2 $10.0 12/31/2021 316,336 $19.3 $14.7
Cash Flow Effects of LTIP Settlements	The difference between the common units issued to the participants and the total number of unit awards vested primarily represents the tax withholdings associated with the award settlement, which we pay in cash. Settlement Date Number of Common Units Issued, Net of Tax Withholdings Tax Withholdings and Other Cash Payments Employer Taxes (in millions) Total Cash Payments January 2019 199,792 $9.8 $0.9 $10.7 January 2020 275,093 $14.7 $1.3 $16.0 January 2021 150,435 $6.2 $0.7 $6.9
Equity-Based Incentive Compensation Expense	Equity-based incentive compensation expense for 2019, 2020 and 2021, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in millions): Year Ended December 31, 2019 2020 2021 Performance awards $ 17.9 $ 3.1 $ 11.2 Time-based awards $ 6.1 $ 8.9 $ 10.6 Total $ 24.0 $ 12.0 $ 21.8

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Open Future Contracts	Our open futures contracts at December 31, 2021 were as follows: Type of Contract/ Product Represented by the Contract and Associated Barrels Maturity Dates Commodity derivatives contract - Economic hedges 3.3 million barrels of refined products and crude oil Between January and November 2022 Commodity derivatives contract - Economic hedges 0.6 million barrels of gas liquids Between January and April 2022
Schedule of Derivatives 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, 2020 and 2021 (in millions): Description Gross Amounts of Recognized Liabilities Gross Amounts of Assets Offset in the Consolidated Balance Sheets Net Amounts of 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, 2020 $ (21.7) $ 1.2 $ (20.5) $ 34.2 $ 13.7 As of December 31, 2021 $ (22.3) $ 5.1 $ (17.2) $ 46.3 $ 29.1 (1) Amount represents the maximum loss we would incur if all of our counterparties failed to perform on their derivative contracts.
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)	The changes in derivative activity included in AOCL for the years ended December 31, 2019, 2020 and 2021 were as follows (in millions): Year Ended December 31, Derivative Losses Included in AOCL 2019 2020 2021 Beginning balance $ (26.5) $ (49.0) $ (55.0) Net loss on cash flow hedges (25.2) (9.5) — Reclassification of net loss on cash flow hedges to income 2.7 3.5 3.5 Ending balance $ (49.0) $ (55.0) $ (51.5) The following is a summary of the effect on our consolidated statements of income for the years ended December 31, 2019, 2020 and 2021 of derivatives that were designated as cash flow hedges (in millions): Interest Rate Contracts Amount of Loss Recognized in AOCL on Derivatives Location of Loss Reclassified from AOCL into Income Amount of Loss Reclassified from AOCL into Income Year Ended December 31, 2019 $ (25.2) Interest expense $ (2.7) Year Ended December 31, 2020 $ (9.5) Interest expense $ (3.5) Year Ended December 31, 2021 $ — Interest expense $ (3.5)
Schedule of Derivatives and Hedging-Overall-Subsequent Measurement	The following table provides a summary of the effect on our consolidated statements of income for the years ended December 31, 2019, 2020 and 2021 of derivatives that were not designated as hedging instruments (in millions): Amount of Gain (Loss) Year Ended December 31, Derivative Instrument Location of Gain (Loss) 2019 2020 2021 Commodity derivatives contracts Product sales revenue $ (66.5) $ 53.2 $ (143.2) Commodity derivatives contracts Cost of product sales (0.2) 0.3 21.1 Basis derivative agreement Other operating income (expense) (10.2) (4.3) (5.6) Total $ (76.9) $ 49.2 $ (127.7)
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	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, 2020 and 2021 (in millions): December 31, 2020 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Commodity derivatives contracts Commodity derivatives contracts, net $ 0.1 Commodity derivatives contracts, net $ 21.7 Commodity derivatives contracts Other noncurrent assets 1.1 Other noncurrent liabilities — Basis derivative agreement Other current assets — Other current liabilities 8.8 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 1.4 Total $ 1.2 Total $ 31.9 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

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements, Recurring and Nonrecurring	The following tables summarize the carrying amounts, fair values and fair value measurements recorded or disclosed as of December 31, 2020 and 2021, based on the three levels established by ASC 820; Fair Value Measurements and Disclosures (in millions): Fair Value Measurements as of Assets (Liabilities) Carrying Amount Fair Value Quoted Prices in Significant Other Significant Commodity derivatives contracts $ (20.5) $ (20.5) $ (20.5) $ — $ — Basis derivative agreement $ (10.2) $ (10.2) $ — $ (10.2) $ — Long-term receivables $ 22.8 $ 22.8 $ — $ — $ 22.8 Contractual obligations $ (11.2) $ (11.2) $ — $ — $ (11.2) Debt $ (4,978.7) $ (5,880.9) $ — $ (5,880.9) $ — Fair Value Measurements as of Assets (Liabilities) Carrying Amount Fair Value Quoted Prices in Significant Other 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) $ —

Partners' Capital and Distrib_2

Partners' Capital and Distributions (Tables)	12 Months Ended
	Dec. 31, 2021
Partners' Capital Notes [Abstract]
Changes in Outstanding Limited Partner Units	The following table details the changes in the number of our common units outstanding from January 1, 2019 through December 31, 2021: Common units outstanding on January 1, 2019 228,195,160 February 2019—Settlement of employee LTIP awards 199,792 During 2019—Other (1) 8,476 Common units outstanding on December 31, 2019 228,403,428 Units repurchased during 2020 (5,568,260) February 2020—Settlement of employee LTIP awards 275,093 During 2020—Other (1) 9,550 Common units outstanding on December 31, 2020 223,119,811 Units repurchased during 2021 (10,894,828) January 2021—Settlement of employee LTIP awards 150,435 During 2021—Other (1) 12,572 Common units outstanding on December 31, 2021 212,387,990
Distributions Made to Limited Partner	Distributions we paid during 2019, 2020 and 2021 were as follows (in millions, except per unit amounts): Payment Date Per Unit Total Distribution 2/14/2019 $ 0.9975 $ 227.8 5/15/2019 1.0050 229.5 8/14/2019 1.0125 231.3 11/14/2019 1.0200 233.0 Total $ 4.0350 $ 921.6 2/14/2020 $ 1.0275 $ 234.8 5/15/2020 1.0275 231.2 8/14/2020 1.0275 231.2 11/13/2020 1.0275 229.9 Total $ 4.1100 $ 927.1 2/12/2021 $ 1.0275 $ 229.4 5/14/2021 1.0275 229.0 8/13/2021 1.0275 226.6 11/12/2021 1.0375 221.4 Total $ 4.1200 $ 906.4

Organization and Description _2

Organization and Description of Business (Narrative) (Details) bbl in Millions	12 Months Ended
	Dec. 31, 2021bblterminalmi
Refined Products
Segment Reporting Information [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
Segment Reporting Information [Line Items]
Pipeline length | mi	2,200
Storage capacity	39
Contracted storage	29
Pipeline length - wholly owned | mi	1,000
Storage capacity - wholly owned	31
Contracted storage - wholly owned	25

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - Discontinued Operations, Held-for-sale - Independent Terminals Network bbl in Millions	Jun. 30, 2021bblterminal	Jun. 10, 2021terminalbbl
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of independent terminals | terminal	26	26
Contracted storage | bbl	6	6

Discontinued Operations and A_3

Discontinued Operations and Assets Held for Sale (Narrative) (Details) bbl in Millions, $ in Millions	Jun. 10, 2021USD ($)terminalbbl	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Jun. 30, 2021bblterminal
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets		$ 275.1	$ 334.8	$ 65.4
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				26
Contracted storage | bbl	6				6
Proceeds from disposition of assets	$ 435

Discontinued Operations and A_4

Discontinued Operations and Assets Held for Sale (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	$ 137	$ 105.6	$ 127.1
Costs and expenses:
Operating	11.2	13.4	17.9
Cost of product sales	66.5	45.5	58.5
Depreciation, amortization and impairment	7.1	15.6	15.4
General and administrative	2.5	2.2	2.5
Total costs and expenses	87.3	76.7	94.3
Income from discontinued operations	49.7	28.9	32.8
Assets:
Trade accounts receivable	6.3	5.6
Inventory	17	9.2
Net property, plant and equipment	272	274.9
Goodwill	2.7	2.7
Other assets	1.5	0.3
Total assets classified as held for sale	299.5	292.7
Liabilities:
Accounts payable	3.7	2
Accrued product liabilities	8.4	4
Other liabilities	3.7	3.9
Total liabilities classified as held for sale	15.8	9.9
Transportation and terminals revenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	53.3	51.4	56.8
Product sales revenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	$ 83.7	$ 54.2	$ 70.3

Segment Disclosures (Segment Re

Segment Disclosures (Segment Reporting Information by Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total revenue	$ 2,733.1	$ 2,322	$ 2,600.9
Operating expense	569.7	587.8	616.4
Cost of product sales	780	468.2	560.9
Other operating (income) expense	(2.8)	(0.1)	(3)
Earnings of non-controlled entities	(154.4)	(153.3)	(169)
Operating margin	1,540.6	1,419.4	1,595.6
Depreciation, amortization and impairment expense	227.9	243.1	230.7
G&A expense	206.3	171.2	194.2
Operating profit	1,106.4	1,005.1	1,170.7
Additions to long-lived assets	140.8	344.4	959.8
Total assets	8,030	8,197	8,437.7
Goodwill	50.1	50.1	50.6
Investments in non-controlled entities	980.8	1,213.9	1,240.6
Operating Segments
Segment Reporting Information [Line Items]
Additions to long-lived assets	130	333.9	859.3
Total assets	7,660.7	7,813.9	8,011.1
Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	2,108.8	1,721.1	1,943.2
Operating expense	416.7	411.8	454
Cost of product sales	630.1	425.8	532.8
Other operating (income) expense	(6.9)	(3.2)	(10.2)
Earnings of non-controlled entities	(34.4)	(32.5)	(8.1)
Operating margin	1,103.3	919.2	974.7
Depreciation, amortization and impairment expense	153.9	159.9	158.7
G&A expense	147.8	123.5	138.3
Operating profit	801.6	635.8	677.7
Additions to long-lived assets	88.9	277.5	785.1
Total assets	4,880	4,977	5,116.4
Goodwill	38	38	38.5
Investments in non-controlled entities	232.8	429.2	422.4
Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	630.1	607.5	663.1
Operating expense	165.4	189.2	173.3
Cost of product sales	149.9	42.4	28.1
Other operating (income) expense	4.1	3.1	7.2
Earnings of non-controlled entities	(120)	(120.8)	(160.9)
Operating margin	430.7	493.6	615.4
Depreciation, amortization and impairment expense	67.4	76.6	66.5
G&A expense	58.5	47.7	55.9
Operating profit	304.8	369.3	493
Additions to long-lived assets	41.1	56.4	74.2
Total assets	2,780.7	2,836.9	2,894.7
Goodwill	12.1	12.1	12.1
Investments in non-controlled entities	748	784.7	818.2
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Total assets	69.8	90.4	131.1
Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	(5.8)	(6.6)	(5.4)
Operating expense	(12.4)	(13.2)	(10.9)
Cost of product sales	0	0	0
Other operating (income) expense	0	0	0
Earnings of non-controlled entities	0	0	0
Operating margin	6.6	6.6	5.5
Depreciation, amortization and impairment expense	6.6	6.6	5.5
G&A expense	0	0	0
Operating profit	0	0	0
Assets held for sale
Segment Reporting Information [Line Items]
Total assets	299.5	292.7	295.5
Transportation and terminals revenue
Segment Reporting Information [Line Items]
Total revenue	1,798.9	1,743.3	1,913.9
Transportation and terminals revenue | Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	1,338.5	1,190.4	1,299
Transportation and terminals revenue | Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	466.2	559.5	620.3
Transportation and terminals revenue | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	(5.8)	(6.6)	(5.4)
Product sales revenue
Segment Reporting Information [Line Items]
Total revenue	913	557.5	665.8
Product sales revenue | Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	763.9	524.4	637.5
Product sales revenue | Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	149.1	33.1	28.3
Product sales revenue | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	0	0	0
Affiliate management fee revenue
Segment Reporting Information [Line Items]
Total revenue	21.2	21.2	21.2
Affiliate management fee revenue | Operating Segments | Refined Products
Segment Reporting Information [Line Items]
Total revenue	6.4	6.3	6.7
Affiliate management fee revenue | Operating Segments | Crude Oil
Segment Reporting Information [Line Items]
Total revenue	14.8	14.9	14.5
Affiliate management fee revenue | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	$ 0	$ 0	$ 0

Revenue (Narrative) (Details)

Revenue (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Disaggregation of Revenue [Line Items]
Contract with customer, liability, change in timeframe, performance obligation satisfied, revenue recognized	$ 80.9
Refined Products
Disaggregation of Revenue [Line Items]
Revenue, shipments regulated by FERC, percentage	30.00%
Revenue, markets regulated by FERC, percentage	70.00%

Revenue (Disaggregated Revenue)

Revenue (Disaggregated Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 2,733.1	$ 2,322	$ 2,600.9
Lease revenue	(96.1)	(100.4)	(101.1)
(Gains) losses from futures contracts included in product sales revenue	(143.2)	(53.2)	66.5
Affiliate management fee revenue	(21.2)	(21.2)	(21.2)
Total revenue from contracts with customers under ASC 606	2,472.6	2,147.2	2,545.1
Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	1,798.9	1,743.3	1,913.9
Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	913	557.5	665.8
Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Revenues	21.2	21.2	21.2
Transferred over Time | Transportation
Disaggregation of Revenue [Line Items]
Revenues	1,144.5	1,048.3	1,169.3
Transferred over Time | Terminalling
Disaggregation of Revenue [Line Items]
Revenues	117.1	131.1	157.7
Transferred over Time | Storage
Disaggregation of Revenue [Line Items]
Revenues	286.1	321.7	328.8
Transferred over Time | Ancillary services
Disaggregation of Revenue [Line Items]
Revenues	155.1	141.8	157
Transferred over Time | Lease revenue
Disaggregation of Revenue [Line Items]
Revenues	96.1	100.4	101.1
Transferred over Time | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	1,798.9	1,743.3	1,913.9
Transferred at Point in Time | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	913	557.5	665.8
Operating Segments | Refined Products
Disaggregation of Revenue [Line Items]
Revenues	2,108.8	1,721.1	1,943.2
Lease revenue	(20.4)	(23.7)	(27.9)
(Gains) losses from futures contracts included in product sales revenue	(127.2)	(56.8)	63.5
Affiliate management fee revenue	(6.4)	(6.3)	(6.7)
Total revenue from contracts with customers under ASC 606	1,954.8	1,634.3	1,972.1
Operating Segments | Refined Products | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	1,338.5	1,190.4	1,299
Operating Segments | Refined Products | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	763.9	524.4	637.5
Operating Segments | Refined Products | Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Revenues	6.4	6.3	6.7
Operating Segments | Refined Products | Transferred over Time | Transportation
Disaggregation of Revenue [Line Items]
Revenues	915.7	742.9	787.7
Operating Segments | Refined Products | Transferred over Time | Terminalling
Disaggregation of Revenue [Line Items]
Revenues	100.1	109.6	139.9
Operating Segments | Refined Products | Transferred over Time | Storage
Disaggregation of Revenue [Line Items]
Revenues	177.1	199.3	214.9
Operating Segments | Refined Products | Transferred over Time | Ancillary services
Disaggregation of Revenue [Line Items]
Revenues	125.2	114.9	128.6
Operating Segments | Refined Products | Transferred over Time | Lease revenue
Disaggregation of Revenue [Line Items]
Revenues	20.4	23.7	27.9
Operating Segments | Refined Products | Transferred over Time | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	1,338.5	1,190.4	1,299
Operating Segments | Refined Products | Transferred at Point in Time | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	763.9	524.4	637.5
Operating Segments | Crude Oil
Disaggregation of Revenue [Line Items]
Revenues	630.1	607.5	663.1
Lease revenue	(75.7)	(76.7)	(73.2)
(Gains) losses from futures contracts included in product sales revenue	(16)	3.6	3
Affiliate management fee revenue	(14.8)	(14.9)	(14.5)
Total revenue from contracts with customers under ASC 606	523.6	519.5	578.4
Operating Segments | Crude Oil | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	466.2	559.5	620.3
Operating Segments | Crude Oil | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	149.1	33.1	28.3
Operating Segments | Crude Oil | Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Revenues	14.8	14.9	14.5
Operating Segments | Crude Oil | Transferred over Time | Transportation
Disaggregation of Revenue [Line Items]
Revenues	228.8	305.4	381.6
Operating Segments | Crude Oil | Transferred over Time | Terminalling
Disaggregation of Revenue [Line Items]
Revenues	17	21.5	17.8
Operating Segments | Crude Oil | Transferred over Time | Storage
Disaggregation of Revenue [Line Items]
Revenues	114.8	129	119.3
Operating Segments | Crude Oil | Transferred over Time | Ancillary services
Disaggregation of Revenue [Line Items]
Revenues	29.9	26.9	28.4
Operating Segments | Crude Oil | Transferred over Time | Lease revenue
Disaggregation of Revenue [Line Items]
Revenues	75.7	76.7	73.2
Operating Segments | Crude Oil | Transferred over Time | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	466.2	559.5	620.3
Operating Segments | Crude Oil | Transferred at Point in Time | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	149.1	33.1	28.3
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues	(5.8)	(6.6)	(5.4)
Lease revenue	0	0	0
(Gains) losses from futures contracts included in product sales revenue	0	0	0
Affiliate management fee revenue	0	0	0
Total revenue from contracts with customers under ASC 606	(5.8)	(6.6)	(5.4)
Intersegment Eliminations | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	(5.8)	(6.6)	(5.4)
Intersegment Eliminations | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Intersegment Eliminations | Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Intersegment Eliminations | Transferred over Time | Transportation
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Intersegment Eliminations | Transferred over Time | Terminalling
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Intersegment Eliminations | Transferred over Time | Storage
Disaggregation of Revenue [Line Items]
Revenues	(5.8)	(6.6)	(5.4)
Intersegment Eliminations | Transferred over Time | Ancillary services
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Intersegment Eliminations | Transferred over Time | Lease revenue
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Intersegment Eliminations | Transferred over Time | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenues	(5.8)	(6.6)	(5.4)
Intersegment Eliminations | Transferred at Point in Time | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0	$ 0

Revenue (Contract Assets and Li

Revenue (Contract Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Accounts receivable from contracts with customers	$ 134.8	$ 103.3
Contract assets	12.5	12.2
Contract liabilities	$ 100.1	$ 102.7

Revenue (Remaining Performance

Revenue (Remaining Performance Obligation) (Details) $ in Millions	Dec. 31, 2021USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 2,944.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining terms	12 months
Revenue, remaining performance obligation, amount	$ 626.3
Refined Products
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	1,874.5
Refined Products | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	368.9
Crude Oil
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	1,069.8
Crude Oil | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 257.4
Minimum | Refined Products | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining terms	1 year
Minimum | Crude Oil | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining terms	1 year
Maximum | Refined Products | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining terms	17 years
Maximum | Crude Oil | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining terms	10 years

Property, Plant and Equipment_3

Property, Plant and Equipment and Other Intangibles (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Interest costs threshold for capitalization construction in process	$ 0.5
Long-term debt, weighted average interest rate, over time	4.40%	4.40%	4.60%
Property, plant and equipment	$ 8,045.9	$ 7,943.8
Depreciation expense	$ 225.2	240.5	$ 227.5
Finite-lived intangible asset, useful life	16 years
Amortization of intangible assets	$ 2.7	2.7	$ 3.3
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment	261.2	280.2
Capitalized Interest | Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 98.7	$ 96.2
Minimum
Property, Plant and Equipment [Line Items]
Finite-lived intangible asset, useful life	7 years
Maximum
Property, Plant and Equipment [Line Items]
Finite-lived intangible asset, useful life	30 years

Property, Plant and Equipment_4

Property, Plant and Equipment and Other Intangibles (Property, Plant and Equipment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 8,045.9	$ 7,943.8
Construction work-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment	89.5	122
Land and rights-of-way
Property, Plant and Equipment [Line Items]
Property, plant and equipment	374.3	373.9
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment	121.8	119.7
Storage tanks
Property, Plant and Equipment [Line Items]
Property, plant and equipment	1,986.7	1,952.7
Pipeline and station equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	3,386	3,325.9
Processing equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	1,826.4	1,769.4
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 261.2	$ 280.2
Minimum | Buildings
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	10 years
Minimum | Storage tanks
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	10 years
Minimum | Pipeline and station equipment
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	10 years
Minimum | Processing equipment
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	3 years
Minimum | Other
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	3 years
Maximum | Buildings
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	53 years
Maximum | Storage tanks
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	49 years
Maximum | Pipeline and station equipment
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	59 years
Maximum | Processing equipment
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	56 years
Maximum | Other
Property, Plant and Equipment [Line Items]
Estimated depreciable life, years	53 years

Investments in Non-Controlled_3

Investments in Non-Controlled Entities (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 01, 2021
Schedule of Equity Method Investments [Line Items]
Equity method investments unamortized excess investment net		$ 32	$ 33
Proceeds from disposition of assets		275.1	334.8	$ 65.4
Gain on disposition of assets		75	12.9	29
Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Other revenues from transactions with related party		$ 2.5	$ 3.6	$ 5.3
MVP Terminalling, LLC (“MVP”)
Schedule of Equity Method Investments [Line Items]
Proceeds from disposition of assets	$ 272.1
Gain on disposition of assets	$ 70.4
Ownership interest		25.00%			25.00%
MVP Terminalling, LLC (“MVP”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Purchases from related party		$ 7.6

Investments in Non-Controlled_4

Investments in Non-Controlled Entities (Equity Method Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 01, 2021	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Total revenue	$ 2,733.1	$ 2,322	$ 2,600.9
Operating expense	569.7	587.8	616.4
Other operating income (expense)	2.8	0.1	3
Trade Accounts Receivable	135.2	103.6
Other Accounts Receivable	34.6	37.1
Change in Equity Method Investments [Roll Forward]
Beginning balance	1,213.9	1,240.6
Additional investment	5.6
Sale of ownership interests	(199.8)
Proportionate share of earnings	156.2
Amortization of excess investment and capitalized interest	(1.8)
Earnings of non-controlled entities	154.4	153.3	169
Distributions from operations of non-controlled entities	193.3	207.6	203.6
Ending balance	980.8	1,213.9	1,240.6
Balance Sheet Information:
Current assets	843.2	405.1
Total assets	8,030	8,197	8,437.7
Current liabilities	679.6	558.6
Equity	1,899.8	2,303.8	2,715		$ 2,643.4
Income Statement Information:
Revenue	2,733.1	2,322	2,600.9
Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Total revenue	733.1	752.7	782
Balance Sheet Information:
Current assets	227	243.8
Noncurrent assets	2,795.7	2,846.7
Total assets	3,022.7	3,090.5
Current liabilities	178.6	143.6
Noncurrent liabilities	59.5	57.5
Total liabilities	238.1	201.1
Equity	2,784.6	2,889.4
Income Statement Information:
Revenue	733.1	752.7	782
Net income	$ 463.4	471.4	507.5
BridgeTex Pipeline Company, LLC (“BridgeTex”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	30.00%
BridgeTex Pipeline Company, LLC (“BridgeTex”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Trade Accounts Receivable	$ 1.2	0.4
Other Accounts Receivable	0	0
Other Accounts Payable	0.3	1
Long-Term Receivables	$ 0	0
Double Eagle Pipeline LLC (“Double Eagle”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	50.00%
Double Eagle Pipeline LLC (“Double Eagle”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Trade Accounts Receivable	$ 0.2	0.3
Other Accounts Receivable	0	0
Other Accounts Payable	0	0
Long-Term Receivables	$ 0	0
HoustonLink Pipeline Company, LLC (“HoustonLink”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	50.00%
HoustonLink Pipeline Company, LLC (“HoustonLink”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Trade Accounts Receivable	$ 0	0
Other Accounts Receivable	0	0
Other Accounts Payable	0.2	0.1
Long-Term Receivables	$ 0	0
MVP Terminalling, LLC (“MVP”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	25.00%			25.00%
MVP Terminalling, LLC (“MVP”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Other operating income (expense)	$ 0	0	0.3
Trade Accounts Receivable	0	0
Other Accounts Receivable	0.6	0.5
Other Accounts Payable	2.2	2.3
Long-Term Receivables	$ 0	0
Powder Springs Logistics, LLC (“Powder Springs”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	50.00%
Powder Springs Logistics, LLC (“Powder Springs”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Trade Accounts Receivable	$ 0	0
Other Accounts Receivable	0	0
Other Accounts Payable	0	0
Long-Term Receivables	$ 0	10.2
Saddlehorn Pipeline Company, LLC (“Saddlehorn”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	30.00%
Saddlehorn Pipeline Company, LLC (“Saddlehorn”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Trade Accounts Receivable	$ 0	0
Other Accounts Receivable	0.2	0.1
Other Accounts Payable	0	0
Long-Term Receivables	$ 0	0
Seabrook Logistics, LLC (“Seabrook”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	50.00%
Seabrook Logistics, LLC (“Seabrook”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Operating expense	$ 19.7	29.1	25.9
Other operating income (expense)	0.4	1.4	0
Trade Accounts Receivable	0	0
Other Accounts Receivable	0.1	0
Other Accounts Payable	3.2	7.3
Long-Term Receivables	$ 0	0
Texas Frontera, LLC (“Texas Frontera”)
Schedule of Equity Method Investments [Line Items]
Ownership Interest	50.00%
Transportation and terminals revenue
Schedule of Equity Method Investments [Line Items]
Total revenue	$ 1,798.9	1,743.3	1,913.9
Income Statement Information:
Revenue	1,798.9	1,743.3	1,913.9
Transportation and terminals revenue | BridgeTex Pipeline Company, LLC (“BridgeTex”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Total revenue	43.7	42.3	41.8
Income Statement Information:
Revenue	43.7	42.3	41.8
Transportation and terminals revenue | Double Eagle Pipeline LLC (“Double Eagle”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Total revenue	3	4.9	6.2
Income Statement Information:
Revenue	3	4.9	6.2
Transportation and terminals revenue | Saddlehorn Pipeline Company, LLC (“Saddlehorn”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Total revenue	2.3	2.5	2.2
Income Statement Information:
Revenue	2.3	2.5	2.2
Product sales revenue
Schedule of Equity Method Investments [Line Items]
Total revenue	913	557.5	665.8
Income Statement Information:
Revenue	913	557.5	665.8
Product sales revenue | Seabrook Logistics, LLC (“Seabrook”) | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Total revenue	0	0	0.3
Income Statement Information:
Revenue	$ 0	$ 0	$ 0.3

Inventory (Inventory) (Details)

Inventory (Inventory) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Refined products	$ 138	$ 72
Crude oil	25.4	32.4
Liquefied petroleum gases	42	25
Transmix	72.4	23.4
Additives	3.3	5.4
Total inventory	$ 281.1	$ 158.2

Supplemental Cash Flows Infor_3

Supplemental Cash Flows Information (Changes in Components of Operating Assets and Liabilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental Cash Flow Information [Abstract]
Trade accounts receivable and other accounts receivable	$ (29.1)	$ (0.9)	$ (20.3)
Inventory	(122.9)	14	2.7
Accounts payable	16	4.5	(1.9)
Accrued payroll and benefits	22.8	(22.3)	4.8
Accrued interest payable	0	(5.3)	1
Accrued taxes other than income	8.8	4.4	12.6
Deferred revenue	(6.1)	(10.7)	(11.4)
Accrued product liabilities	78.3	(8.5)	15.9
Other current and noncurrent assets and liabilities	22.5	(12.3)	(1.3)
Changes in components of operating assets and liabilities	$ (9.7)	$ (37.1)	$ 2.1

Supplemental Cash Flows Infor_4

Supplemental Cash Flows Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental Cash Flow Information [Abstract]
Increase (decrease) in long-term pension and benefits liability	$ (16.3)	$ 21.5	$ 27

Debt (Consolidated Debt) (Detai

Debt (Consolidated Debt) (Details) - USD ($)		Dec. 31, 2021	Dec. 31, 2020	May 31, 2020	Dec. 31, 2019	Aug. 31, 2019
Debt Instrument [Line Items]
Face value of long-term debt		$ 5,108,000,000	$ 5,000,000,000
Unamortized debt issuance costs	[1]	(37,800,000)	(40,100,000)
Net unamortized debt premium	[1]	18,600,000	18,800,000
Long-term debt, net		5,088,800,000	4,978,700,000
Commercial paper
Debt Instrument [Line Items]
Face value of long-term debt		$ 108,000,000	0
3.20% Notes due 2025
Debt Instrument [Line Items]
Interest rate		3.20%
Face value of long-term debt		$ 250,000,000	250,000,000
5.00% Notes due 2026
Debt Instrument [Line Items]
Interest rate		5.00%
Face value of long-term debt		$ 650,000,000	650,000,000
3.25% Notes due 2030
Debt Instrument [Line Items]
Interest rate		3.25%		3.25%
Face value of long-term debt		$ 500,000,000	500,000,000	$ 500,000,000
6.40% Notes due 2037
Debt Instrument [Line Items]
Interest rate		6.40%
Face value of long-term debt		$ 250,000,000	250,000,000
4.20% Notes due 2042
Debt Instrument [Line Items]
Interest rate		4.20%
Face value of long-term debt		$ 250,000,000	250,000,000
5.15% Notes due 2043
Debt Instrument [Line Items]
Interest rate		5.15%
Face value of long-term debt		$ 550,000,000	550,000,000
4.20% Notes due 2045
Debt Instrument [Line Items]
Interest rate		4.20%
Face value of long-term debt		$ 250,000,000	250,000,000
4.25% Notes due 2046
Debt Instrument [Line Items]
Interest rate		4.25%
Face value of long-term debt		$ 500,000,000	500,000,000
4.20% Notes due 2047
Debt Instrument [Line Items]
Interest rate		4.20%
Face value of long-term debt		$ 500,000,000	500,000,000
4.85% Notes due 2049
Debt Instrument [Line Items]
Interest rate		4.85%			4.85%
Face value of long-term debt		$ 500,000,000	500,000,000		$ 500,000,000
3.95% Notes due 2050
Debt Instrument [Line Items]
Interest rate		3.95%				3.95%
Face value of long-term debt		$ 800,000,000	$ 800,000,000			$ 500,000,000
[1]	Debt issuance costs and note discounts and premiums are being amortized or accreted to the applicable notes over the respective lives of those notes.

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-term Debt, Fiscal Year Maturity [Abstract]
2022	$ 0
2023	0
2024	0
2025	250,000,000
Thereafter	$ 4,750,000,000
Long-term debt, weighted average interest rate, over time	4.40%	4.40%	4.60%
Cash payments for interest	$ 221,600,000	$ 234,500,000	$ 217,100,000
Revolving Credit Facility
Long-term Debt, Fiscal Year Maturity [Abstract]
Maximum borrowing capacity	$ 1,000,000,000
Commitment fee percentage	0.125%
Borrowings outstanding	$ 0	0
Letter of credit obligations	$ 3,500,000	$ 3,500,000
Consolidated debt to EBITDA ratio	5
Revolving Credit Facility | Minimum
Long-term Debt, Fiscal Year Maturity [Abstract]
Basis spread on variable rate	0.875%
Commitment fee percentage	0.075%
Revolving Credit Facility | Maximum
Long-term Debt, Fiscal Year Maturity [Abstract]
Basis spread on variable rate	1.50%
Commitment fee percentage	0.20%
Commercial Paper
Long-term Debt, Fiscal Year Maturity [Abstract]
Maximum borrowing capacity	$ 1,000,000,000
Borrowings outstanding	$ 108,000,000
Long-term debt, weighted average interest rate, over time	0.20%	0.40%
Commercial Paper | Maximum
Long-term Debt, Fiscal Year Maturity [Abstract]
Term of contract	397 days

Leases (Lessee, Operating Lease

Leases (Lessee, Operating Lease Liability, Maturity) (Details) $ in Millions	Dec. 31, 2021USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2022	$ 31.1
2023	31.3
2024	31.4
2025	28.4
2026	19.1
Thereafter	51.7
Total future minimum rental payments	193
Present value discount	19.9
Total operating lease liability	173.1
Third Party Leases
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2022	21.2
2023	21.4
2024	21.7
2025	21.8
2026	12.5
Thereafter	34.1
Total future minimum rental payments	132.7
Present value discount	12.1
Total operating lease liability	120.6
Seabrook Lease | Equity Method Investee | Seabrook Logistics, LLC (“Seabrook”)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2022	9.9
2023	9.9
2024	9.7
2025	6.6
2026	6.6
Thereafter	17.6
Total future minimum rental payments	60.3
Present value discount	7.8
Total operating lease liability	$ 52.5

Leases (Lessee, Operating Lea_2

Leases (Lessee, Operating Lease, Disclosure) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Fixed lease expense	$ 33.7	$ 33.5	$ 30
Short-term lease expense	1.7	1.3	1.6
Variable lease expense	10.2	18.9	18.1
Total lease expense	45.6	53.7	49.7
Current lease liability	25.8	27.5
Long-term lease liability	147.3	137.5
Right-of-use asset	174.2	166.1
Operating cash flows for operating leases	$ 45.7	$ 53.2
Weighted average remaining lease term (years)	7 years	7 years
Weighted average discount rate	3.40%	3.80%
Third Party Leases
Lessee, Lease, Description [Line Items]
Fixed lease expense	$ 21	$ 19.2	19.2
Short-term lease expense	1.7	1.3	1.6
Variable lease expense	3.4	4.1	3
Total lease expense	26.1	24.6	23.8
Current lease liability	17.8	17.1
Long-term lease liability	102.8	85
Right-of-use asset	121.7	103.2
Operating cash flows for operating leases	$ 26.2	$ 24.1
Weighted average remaining lease term (years)	7 years	6 years
Weighted average discount rate	3.00%	3.70%
Seabrook Logistics, LLC (“Seabrook”) | Equity Method Investee | Seabrook Lease
Lessee, Lease, Description [Line Items]
Fixed lease expense	$ 12.7	$ 14.3	10.8
Short-term lease expense	0	0	0
Variable lease expense	6.8	14.8	15
Total lease expense	19.5	29.1	$ 25.8
Current lease liability	8	10.4
Long-term lease liability	44.5	52.5
Right-of-use asset	52.5	62.9
Operating cash flows for operating leases	$ 19.5	$ 29.1
Weighted average remaining lease term (years)	7 years	7 years
Weighted average discount rate	4.10%	4.00%

Leases (Lessor, Future Minimum

Leases (Lessor, Future Minimum Payments Receivable) (Details) $ in Millions	Dec. 31, 2021USD ($)
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
2022	$ 24.9
2023	25.2
2024	21.9
2025	13.8
2026	13.1
Thereafter	32.9
Total	$ 131.8

Leases (Narrative) (Details)

Leases (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Variable lease revenue	$ 61	$ 61.4	$ 58.4
Processing equipment
Lessor, Lease, Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, after accumulated depreciation	216.9
Storage tanks
Lessor, Lease, Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, after accumulated depreciation	56.4
Pipeline and station equipment
Lessor, Lease, Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, after accumulated depreciation	47.5
Other
Lessor, Lease, Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, after accumulated depreciation	$ 29

Leases (Investment in Direct Fi

Leases (Investment in Direct Financing Lease) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Sales-type and Direct Financing Leases, Lease Receivables, Gross Difference, Amount [Abstract]
Total minimum lease payments receivable	$ 12.2	$ 14
Less: Unearned income	1.8	2.3
Recorded net investment in sales-type lease	10.4	11.7
Other accounts receivable	1.3	1.2
Long-term receivables	9.1	10.5
Total	10.4	$ 11.7
Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract]
2022	1.7
2023	1.7
2024	1.7
2025	1.7
2026	1.7
Thereafter	$ 3.5

Employee Benefit Plans (Narrati

Employee Benefit Plans (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)plan	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, expenses	$ 10.6	$ 12.2	$ 11.4
Number of sponsored pension plans | plan	2
Number of sponsored pension plans, non-union employees | plan	1
Number of sponsored pension plans, union employees | plan	1
Health care cost trend rate assumed, next fiscal year	6.00%
Ultimate health care cost trend rate	5.08%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target	70.00%	67.00%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target	30.00%	30.00%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss	$ 19.4	$ (53.2)
Contributions estimated to be paid	37.2
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss	(0.9)	$ (2.5)
Contributions estimated to be paid	$ 1.7

Employee Benefit Plans (Changes

Employee Benefit Plans (Changes in Benefit Obligations and Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefits
Change in benefit obligations:
Benefit obligations at beginning of year	$ 443,600	$ 381,200
Service cost	28,200	27,700	$ 25,400
Interest cost	9,500	11,000	12,200
Plan participants’ contributions	0	0
Actuarial (gain) loss	(19,400)	53,200
Benefits paid	(29,200)	(23,100)
Curtailment gain	0	(1,700)
Settlement payments	(9,300)	(4,700)
Benefit obligations at end of year	423,400	443,600	381,200
Change in plan assets:
Fair value of plan assets at beginning of year	295,700	249,200
Employer contributions	27,600	29,300
Plan participants’ contributions	0	0
Actual return on plan assets	9,700	43,600
Benefits paid	(29,200)	(23,100)
Settlement payments	(9,300)	(3,300)
Fair value of plan assets at end of year	294,500	295,700	249,200
Funded status at end of year	(128,900)	(147,900)
Accumulated benefit obligations	305,000	324,800
Other Postretirement Benefits
Change in benefit obligations:
Benefit obligations at beginning of year	17,300	15,200
Service cost	300	300	200
Interest cost	400	500	500
Plan participants’ contributions	800	600
Actuarial (gain) loss	900	2,500
Benefits paid	(1,900)	(1,800)
Curtailment gain	0	0
Settlement payments	0	0
Benefit obligations at end of year	17,800	17,300	15,200
Change in plan assets:
Fair value of plan assets at beginning of year	0	0
Employer contributions	1,100	1,200
Plan participants’ contributions	800	600
Actual return on plan assets	0	0
Benefits paid	(1,900)	(1,800)
Settlement payments	0	0
Fair value of plan assets at end of year	0	0	$ 0
Funded status at end of year	$ (17,800)	$ (17,300)

Employee Benefit Plans (Pension

Employee Benefit Plans (Pension Plans with Obligations in Excess of Assets) (Details) - Pension Benefits - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 423,400	$ 443,600	$ 381,200
Fair value of plan assets	294,500	295,700	$ 249,200
Accumulated benefit obligation	$ 305,000	$ 324,800

Employee Benefit Plans (Amounts

Employee Benefit Plans (Amounts Recognized in Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amounts recognized in consolidated balance sheets:
Long-term pension and benefits	$ 145,000	$ 163,800
Accumulated other comprehensive loss:
Accumulated other comprehensive loss	(155,000)	(183,200)
Pension Benefits
Amounts recognized in consolidated balance sheets:
Current accrued benefit cost	0	0
Long-term pension and benefits	128,900	147,900
Amounts recognized in consolidated balance sheets	128,900	147,900
Accumulated other comprehensive loss:
Net actuarial loss	(95,300)	(120,500)
Prior service credit	2,500	2,700
Accumulated other comprehensive loss	(92,800)	(117,800)
Net amount of liabilities and accumulated other comprehensive loss recognized in consolidated balance sheets	36,100	30,100
Other Postretirement Benefits
Amounts recognized in consolidated balance sheets:
Current accrued benefit cost	1,700	1,400
Long-term pension and benefits	16,100	15,900
Amounts recognized in consolidated balance sheets	17,800	17,300
Accumulated other comprehensive loss:
Net actuarial loss	(10,700)	(10,400)
Prior service credit	0	0
Accumulated other comprehensive loss	(10,700)	(10,400)
Net amount of liabilities and accumulated other comprehensive loss recognized in consolidated balance sheets	$ 7,100	$ 6,900

Employee Benefit Plans (Consoli

Employee Benefit Plans (Consolidated Net Periodic Benefit Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefits
Components of net periodic pension and postretirement benefit expense:
Service cost	$ 28,200	$ 27,700	$ 25,400
Interest cost	9,500	11,000	12,200
Expected return on plan assets	(11,900)	(11,400)	(9,400)
Amortization of prior service credit	(200)	(200)	(200)
Amortization of actuarial loss	5,400	5,400	5,500
Settlement cost	2,600	1,000	2,600
Settlement gain on disposition of assets	0	(1,300)	0
Net periodic benefit cost	33,600	32,200	36,100
Other Postretirement Benefits
Components of net periodic pension and postretirement benefit expense:
Service cost	300	300	200
Interest cost	400	500	500
Expected return on plan assets	0	0	0
Amortization of prior service credit	0	0	0
Amortization of actuarial loss	600	400	300
Settlement cost	0	0	0
Settlement gain on disposition of assets	0	0	0
Net periodic benefit cost	$ 1,300	$ 1,200	$ 1,000

Employee Benefit Plans (Other C

Employee Benefit Plans (Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in AOCL [Roll Forward]
Beginning balance	$ 2,303,800	$ 2,715,000	$ 2,643,400
Net actuarial gain (loss)	16,300	(23,500)	(27,300)
Recognition of prior service credit amortization in income	(200)	(200)	(200)
Recognition of actuarial loss amortization in income	6,000	5,900	5,800
Curtailment gain	0	1,700	0
Settlement cost	2,600	1,000	2,600
Total other comprehensive income (loss)	28,200	(21,100)	(41,600)
Ending balance	1,899,800	2,303,800	2,715,000
Pension Benefits
Changes in AOCL [Roll Forward]
Beginning balance	(117,800)	(104,700)	(88,600)
Net actuarial gain (loss)	17,200	(21,000)	(24,000)
Recognition of prior service credit amortization in income	(200)	(200)	(200)
Recognition of actuarial loss amortization in income	5,400	5,400	5,500
Curtailment gain	0	1,700	0
Settlement cost	2,600	1,000	2,600
Total other comprehensive income (loss)	25,000	(13,100)	(16,100)
Ending balance	(92,800)	(117,800)	(104,700)
Other Postretirement Benefits
Changes in AOCL [Roll Forward]
Beginning balance	(10,400)	(8,400)	(5,400)
Net actuarial gain (loss)	(900)	(2,500)	(3,300)
Recognition of prior service credit amortization in income	0	0	0
Recognition of actuarial loss amortization in income	600	500	300
Curtailment gain	0	0	0
Settlement cost	0	0	0
Total other comprehensive income (loss)	(300)	(2,000)	(3,000)
Ending balance	$ (10,700)	$ (10,400)	$ (8,400)

Employee Benefit Plans (Weighte

Employee Benefit Plans (Weighted-Average Rate Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefits
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	2.61%	2.23%
Rate of compensation increase	6.51%	4.53%
Cash balance interest crediting rate	1.94%	1.70%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.23%	3.01%	3.98%
Rate of compensation increase	4.53%	4.58%	6.48%
Expected rate of return on plan assets	4.10%	4.50%	6.00%
Cash balance interest crediting rate	1.70%	2.16%	2.78%
Other Postretirement Benefits
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	2.64%	2.30%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.30%	3.06%	4.08%

Employee Benefit Plans (Fair Va

Employee Benefit Plans (Fair Value of Pension Plan Assets) (Details) - Pension Benefits - USD ($) $ in Thousands		Dec. 31, 2021		Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 294,500		$ 295,700	$ 249,200
Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		294,300		295,500
Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		200		200
Small-cap fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	6,100		5,800
Small-cap fund | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	6,100		5,800
Small-cap fund | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Small-cap fund | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Mid-cap fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	6,000		5,800
Mid-cap fund | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	6,000		5,800
Mid-cap fund | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Mid-cap fund | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Large-cap fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	48,000		47,600
Large-cap fund | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	48,000		47,600
Large-cap fund | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Large-cap fund | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
International equity fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		30,100	[1]	29,900
International equity fund | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		30,100	[1]	29,900
International equity fund | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
International equity fund | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Short-term bond fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]			4,200
Short-term bond fund | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]			4,200
Short-term bond fund | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets				0
Short-term bond fund | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets				0
Intermediate-term bond fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]			34,900
Intermediate-term bond fund | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]			34,900
Intermediate-term bond fund | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets				0
Intermediate-term bond fund | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets				0
Long-term investment grade bond funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	197,100		161,000
Long-term investment grade bond funds | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	197,100		161,000
Long-term investment grade bond funds | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Long-term investment grade bond funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Short-term investment fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		7,000		6,300
Short-term investment fund | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		7,000		6,300
Short-term investment fund | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Short-term investment fund | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Group annuity contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		200		200
Group annuity contract | Quoted Prices in Active  Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Group annuity contract | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0		0
Group annuity contract | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 200		$ 200
[1]	We hold equity and fixed income securities through investments in mutual funds, which are dedicated to each category as indicated.

Employee Benefit Plans (Target

Employee Benefit Plans (Target Allocation and Actual Weighted-Average Asset Allocation of Plan Assets) (Details)	Dec. 31, 2021	Dec. 31, 2020
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Actual	30.00%	30.00%
Target	30.00%	30.00%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Actual	67.00%	68.00%
Target	70.00%	67.00%
Other
Defined Benefit Plan Disclosure [Line Items]
Actual	3.00%	2.00%
Target	0.00%	3.00%

Employee Benefit Plans (Expecte

Employee Benefit Plans (Expected Benefit Payments) (Details) $ in Thousands	Dec. 31, 2021USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
2022	$ 16,200
2023	18,100
2024	21,600
2025	22,400
2026	27,400
2027 through 2031	147,900
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
2022	1,700
2023	1,500
2024	1,300
2025	1,300
2026	1,200
2027 through 2031	$ 4,000

Long-Term Incentive Plan (Narra

Long-Term Incentive Plan (Narrative) (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2021	Apr. 30, 2021	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Limited partners' capital account, units issued (in units)		13.7	11.9
Limited partner unitholders, units remaining available (in shares)	2.4
Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payout percentage, minimum	0.00%
Award payout percentage, maximum	200.00%
Award forfeiture period	2 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years

Long-Term Incentive Plan (Chang

Long-Term Incentive Plan (Changes in Non-Vested Unit Awards) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of Unit Awards
Beginning balance (in shares)	693,708
Units granted during 2021 (in shares)	583,696
Units vested during 2021 (in shares)	(329,688)
Units forfeited during 2021 (in shares)	(31,277)
Ending balance (in shares)	916,439	693,708
Weighted Average Fair Value
Beginning balance (in dollars per share)	$ 61.70
Units granted during 2021 (in dollars per share)	40.92
Units vested during 2021 (in dollars per share)	62.16
Units forfeited during 2021 (in dollars per share)	51.06
Ending balance (in dollars per share)	$ 48.67	$ 61.70
Performance-Based Awards
Number of Unit Awards
Beginning balance (in shares)	340,164
Units granted during 2021 (in shares)	281,823	189,632	182,834
Units vested during 2021 (in shares)	(161,484)
Units forfeited during 2021 (in shares)	(14,578)
Ending balance (in shares)	445,925	340,164
Weighted Average Fair Value
Beginning balance (in dollars per share)	$ 62.35
Units granted during 2021 (in dollars per share)	40.85	$ 61.16	$ 63.65
Units vested during 2021 (in dollars per share)	63.62
Units forfeited during 2021 (in dollars per share)	51.23
Ending balance (in dollars per share)	$ 48.66	$ 62.35
Time-Based Awards
Number of Unit Awards
Beginning balance (in shares)	353,544
Units granted during 2021 (in shares)	301,873	198,450	195,031
Units vested during 2021 (in shares)	(168,204)
Units forfeited during 2021 (in shares)	(16,699)
Ending balance (in shares)	470,514	353,544
Weighted Average Fair Value
Beginning balance (in dollars per share)	$ 61.07
Units granted during 2021 (in dollars per share)	40.99	$ 61.18	$ 62.91
Units vested during 2021 (in dollars per share)	60.76
Units forfeited during 2021 (in dollars per share)	50.92
Ending balance (in dollars per share)	$ 48.67	$ 61.07

Long-Term Incentive Plan (Total

Long-Term Incentive Plan (Total Non-Vested Unit Awards) (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Unit Awards (in shares)		916,439	693,708
Performance Adjustment to Unit Awards (in shares)		17,211
Total Unit Award Accrual (in shares)		933,650
Unrecognized Compensation Expense	[1]	$ 23.7
Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Unit Awards (in shares)		445,925	340,164
Time-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Unit Awards (in shares)		470,514	353,544
Time-Based Awards | 2022 vesting date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Unit Awards (in shares)		178,911
Performance Adjustment to Unit Awards (in shares)		0
Total Unit Award Accrual (in shares)		178,911
Unrecognized Compensation Expense	[1]	$ 3.7
Time-Based Awards | 2023 vesting date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Unit Awards (in shares)		291,603
Performance Adjustment to Unit Awards (in shares)		0
Total Unit Award Accrual (in shares)		291,603
Unrecognized Compensation Expense	[1]	$ 8.3
2020 awards | Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Unit Awards (in shares)		171,400
Performance Adjustment to Unit Awards (in shares)		(51,420)
Total Unit Award Accrual (in shares)		119,980
Unrecognized Compensation Expense	[1]	$ 2.4
2021 awards | Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Unit Awards (in shares)		274,525
Performance Adjustment to Unit Awards (in shares)		68,631
Total Unit Award Accrual (in shares)		343,156
Unrecognized Compensation Expense	[1]	$ 9.3
[1]	Unrecognized compensation expense will be recognized over the remaining vesting period of the awards.

Long-Term Incentive Plan (Weigh

Long-Term Incentive Plan (Weighted-Average Grant Date Fair Values) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Units Awarded (in shares)	583,696
Weighted-Average Fair Value (in dollars per share)	$ 40.92
Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Units Awarded (in shares)	281,823	189,632	182,834
Weighted-Average Fair Value (in dollars per share)	$ 40.85	$ 61.16	$ 63.65
Time-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Units Awarded (in shares)	301,873	198,450	195,031
Weighted-Average Fair Value (in dollars per share)	$ 40.99	$ 61.18	$ 62.91

Long-Term Incentive Plan (Veste

Long-Term Incentive Plan (Vested Unit Awards) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Vested Common Units (in shares)	316,336	235,127	436,629
Fair Value of Unit Awards on Vesting Date	$ 19.3	$ 15.2	$ 31
Intrinsic Value of Unit Awards on Vesting Date	$ 14.7	$ 10	$ 27.5

Long-Term Incentive Plan (Cash

Long-Term Incentive Plan (Cash Flow Effects of LTIP Settlements) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Number of Common Units Issued, Net of Tax Withholdings (in shares)	150,435	275,093	199,792
Tax Withholdings and Other Cash Payments	$ 6.2	$ 14.7	$ 9.8
Employer Taxes	0.7	1.3	0.9
Total Cash Payments	$ 6.9	$ 16	$ 10.7

Long-Term Incentive Plan (Equit

Long-Term Incentive Plan (Equity-Based Incentive Compensation Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based incentive compensation expense	$ 21.8	$ 12	$ 24
Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based incentive compensation expense	11.2	3.1	17.9
Time-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based incentive compensation expense	$ 10.6	$ 8.9	$ 6.1

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details)	1 Months Ended			12 Months Ended
	Dec. 31, 2020USD ($)	May 31, 2020USD ($)	Aug. 31, 2019USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)bbl
Derivative [Line Items]
Face value of long-term debt	$ 5,000,000,000			$ 5,108,000,000	$ 5,000,000,000
Net payment on financial derivatives				0	9,500,000	$ 33,300,000
Commodity derivatives deposits	34,200,000			46,300,000	34,200,000
Derivative liability	20,500,000			17,200,000	20,500,000
Loss to be reclassified within twelve months				3,500,000
3.95% Notes due 2050
Derivative [Line Items]
Face value of long-term debt	$ 300,000,000				$ 300,000,000
Interest rate	3.95%				3.95%
Net payment on financial derivatives	$ (1,000,000)
3.25% Notes due 2030
Derivative [Line Items]
Face value of long-term debt	500,000,000	$ 500,000,000		$ 500,000,000	$ 500,000,000
Interest rate		3.25%		3.25%
Net payment on financial derivatives		$ 10,400,000
3.95% Notes due 2050
Derivative [Line Items]
Face value of long-term debt	800,000,000		$ 500,000,000	$ 800,000,000	800,000,000
Interest rate			3.95%	3.95%
Net payment on financial derivatives			$ 25,300,000
4.85% Notes due 2049
Derivative [Line Items]
Face value of long-term debt	500,000,000			$ 500,000,000	500,000,000	$ 500,000,000
Interest rate				4.85%		4.85%
Net payment on financial derivatives						$ 8,000,000
Basis derivative agreement
Derivative [Line Items]
Nonmonetary notional amount | bbl						30,000
Derivative liability	$ 10,200,000			$ 1,500,000	$ 10,200,000

Derivative Financial Instrume_4

Derivative Financial Instruments (Schedule of Open Future Contracts) (Details) - Economic Hedges bbl in Millions	Dec. 31, 2021bbl
Future Contract One
Derivative [Line Items]
Nonmonetary notional amount	3.3
Future Contract Two
Derivative [Line Items]
Nonmonetary notional amount	0.6

Derivative Financial Instrume_5

Derivative Financial Instruments (Schedule of Derivative Offset Amounts) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amounts of Recognized Liabilities	$ (22.3)	$ (21.7)
Gross Amounts of Assets Offset in the Consolidated Balance Sheets	5.1	1.2
Derivative Liability, Total	17.2	20.5
Margin Deposit Amounts Not Offset in the Consolidated Balance Sheets	46.3	34.2
Net Amount Offset	$ 29.1	$ 13.7

Derivative Financial Instrume_6

Derivative Financial Instruments (Amounts Included in AOCL) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Losses Included in AOCL
Beginning balance	$ 2,303.8	$ 2,715	$ 2,643.4
Net loss on cash flow hedges	0	(9.5)	(25.2)
Reclassification of net loss on cash flow hedges to income	3.5	3.5	2.7
Ending balance	1,899.8	2,303.8	2,715
Derivative Losses Included in AOCL
Derivative Losses Included in AOCL
Beginning balance	(55)	(49)	(26.5)
Ending balance	$ (51.5)	$ (55)	$ (49)

Derivative Financial Instrume_7

Derivative Financial Instruments (Derivatives and Hedging-Cash Flow Hedges) (Details) - Interest Rate Contract - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in AOCL on  Derivatives	$ 0	$ (9.5)	$ (25.2)
Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from AOCL into Income	$ (3.5)	$ (3.5)	$ (2.7)

Derivative Financial Instrume_8

Derivative Financial Instruments (Derivatives and Hedging-Overall-Subsequent Measurement) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	$ (127.7)	$ 49.2	$ (76.9)
Product sales revenue | Commodity derivatives contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	(143.2)	53.2	(66.5)
Cost of product sales | Commodity derivatives contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	21.1	0.3	(0.2)
Other operating income (expense) | Basis derivative agreement
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized on Derivatives	$ (5.6)	$ (4.3)	$ (10.2)

Derivative Financial Instrume_9

Derivative Financial Instruments (Derivatives and Hedging-Designated) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	$ 5.1	$ 1.2
Liability Derivatives, Fair Value	22.3	21.7
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	5.1	1.2
Liability Derivatives, Fair Value	23.8	31.9
Not Designated as Hedging Instrument | Commodity derivatives contracts | Other noncurrent assets
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value		1.1
Not Designated as Hedging Instrument | Commodity derivatives contracts | Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value		0
Not Designated as Hedging Instrument | Commodity derivatives contracts | Energy Marketing Contracts Assets, Current
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	5.1	0.1
Liability Derivatives, Fair Value	22.3	21.7
Not Designated as Hedging Instrument | Basis derivative agreement | Other noncurrent assets
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value		0
Not Designated as Hedging Instrument | Basis derivative agreement | Other current assets
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	0	0
Not Designated as Hedging Instrument | Basis derivative agreement | Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value		1.4
Not Designated as Hedging Instrument | Basis derivative agreement | Other current liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	$ 1.5	$ 8.8

Fair Value Disclosures (Details

Fair Value Disclosures (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)terminal	Dec. 31, 2021USD ($)	Dec. 31, 2019bbl
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of marine terminals sold | terminal	3
Derivative liability	$ (20.5)	$ (17.2)
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	0	0
Contractual obligations	0	0
Debt	0	0
Significant Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	0	0
Contractual obligations	0	0
Debt	(5,880.9)	(5,711.5)
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	22.8	10.1
Contractual obligations	(11.2)	(9.8)
Debt	0	0
Commodity derivatives contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(20.5)	(18.6)
Commodity derivatives contracts | Significant Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0	1.4
Commodity derivatives contracts | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0	0
Basis derivative agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonmonetary notional amount | bbl			30,000
Derivative liability	(10.2)	(1.5)
Basis derivative agreement | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0	0
Basis derivative agreement | Significant Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(10.2)	(1.5)
Basis derivative agreement | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0	0
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	22.8	10.1
Contractual obligations	(11.2)	(9.8)
Debt	(4,978.7)	(5,088.8)
Carrying Amount | Commodity derivatives contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(20.5)	(17.2)
Carrying Amount | Basis derivative agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(10.2)	(1.5)
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	22.8	10.1
Contractual obligations	(11.2)	(9.8)
Debt	(5,880.9)	(5,711.5)
Fair Value | Commodity derivatives contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(20.5)	(17.2)
Fair Value | Basis derivative agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	$ (10.2)	$ (1.5)

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	Dec. 06, 2021USD ($)patentfacility	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)terminal	Dec. 31, 2019USD ($)	Oct. 04, 2017facility
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies		$ 9.8	$ 13.5
Environmental remediation expense		$ 3.2	$ 3.4	$ 3.8
Number of marine terminals sold | terminal			3
Powder Springs Logistics, LLC (“Powder Springs”)
Loss Contingencies [Line Items]
Ownership interest		50.00%
Guarantee of Indebtedness of Others | Equity Method Investee | Powder Springs Logistics, LLC (“Powder Springs”)
Loss Contingencies [Line Items]
Contractual obligations		$ 0.4	$ 0.4
Ownership interest		50.00%
Guarantor obligations, maximum exposure, undiscounted		$ 25
Other current liabilities | Performance Guarantee
Loss Contingencies [Line Items]
Contractual obligations		0.5	0.6
Other noncurrent liabilities | Performance Guarantee
Loss Contingencies [Line Items]
Contractual obligations		$ 8.9	$ 10.2
Unfavorable Regulatory Action | Settled Litigation | Sunoco v.s. Magellan
Loss Contingencies [Line Items]
Alleged patent infringement, number of facilities | facility					8
Patents found infringed, number | patent	3
Damages awarded, value	$ 9.4
Patents found infringed, number of facilities | facility	8
Unfavorable Regulatory Action | Settled Litigation | Powder Springs Logistics, LLC (“Powder Springs”) | Sunoco v.s. Magellan
Loss Contingencies [Line Items]
Patents found infringed, number | patent	1
Damages awarded, value	$ 2.8

Concentration of Risks (Details

Concentration of Risks (Details) - employee	Jan. 31, 2022	Dec. 31, 2021
Concentration Risk [Line Items]
Number of employees		1,715
Number of Employees, Total | Unionized Employees Concentration Risk | Subsequent Event
Concentration Risk [Line Items]
Concentration risk, percentage	13.00%
Corporate, Non-Segment
Concentration Risk [Line Items]
Number of employees		526
Refined Products | Operating Segments
Concentration Risk [Line Items]
Number of employees		854
Number of employees subject to sales agreement		82
Crude Oil | Operating Segments
Concentration Risk [Line Items]
Number of employees		253

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details) - Director - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Methvin Company
Related Party Transaction [Line Items]
Other revenues from transactions with related party	$ 65.2	$ 37.4	$ 29.6
Accounts receivable, related parties, current	5.4	3.9
Methvin Company 2
Related Party Transaction [Line Items]
Other revenues from transactions with related party	$ 0.3	$ 0.5

Partners' Capital and Distrib_3

Partners' Capital and Distributions (Changes in Limited Partner Units Outstanding) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Capital Unit [Line Items]
Stock repurchase program, authorized amount (up to)	$ 1,500,000,000
Limited Partners' Capital Account [Roll Forward]
Common units outstanding, beginning balance (in shares)	223,119,811		228,403,428		228,195,160
Units repurchased (in shares)	(10,894,828)		(5,568,260)
Units issued (in shares)	150,435		275,093		199,792
Common units outstanding, ending balance (in shares)	212,387,990		223,119,811		228,403,428
Right to receive distribution in cash, period	45 days
Removal of general partner, percentage vote required	100.00%
Annual report available, period	120 days
Tax reporting information, period	90 days
Management
Limited Partners' Capital Account [Roll Forward]
Units issued (in shares)	150,435		275,093	[1]	199,792
Director
Limited Partners' Capital Account [Roll Forward]
Units issued (in shares)	12,572	[1]	9,550		8,476	[1]
[1]	issued to settle the equity-based retainer paid to independent directors of our general partner.

Partners' Capital and Distrib_4

Partners' Capital and Distributions (Distributions Made to Limited Partner) (Details) - USD ($) $ / shares in Units, $ in Millions	Nov. 12, 2021	Aug. 13, 2021	May 14, 2021	Feb. 12, 2021	Nov. 13, 2020	Aug. 14, 2020	May 15, 2020	Feb. 14, 2020	Nov. 14, 2019	Aug. 14, 2019	May 15, 2019	Feb. 14, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Partners' Capital Notes [Abstract]
Per Unit Distribution Amount (in dollars per share)	$ 1.0375	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0200	$ 1.0125	$ 1.0050	$ 0.9975	$ 4.1200	$ 4.1100	$ 4.0350
Total Distribution	$ 221.4	$ 226.6	$ 229	$ 229.4	$ 229.9	$ 231.2	$ 231.2	$ 234.8	$ 233	$ 231.3	$ 229.5	$ 227.8	$ 906.4	$ 927.1	$ 921.6

Subsequent Events (Details)

Subsequent Events (Details)	Jan. 31, 2022h	Feb. 13, 2022$ / shares	Dec. 31, 2021$ / shares	Nov. 12, 2021$ / shares	Aug. 13, 2021$ / shares	May 14, 2021$ / shares	Feb. 12, 2021$ / shares	Dec. 31, 2020$ / shares	Nov. 13, 2020$ / shares	Aug. 14, 2020$ / shares	May 15, 2020$ / shares	Feb. 14, 2020$ / shares	Dec. 31, 2019$ / shares	Nov. 14, 2019$ / shares	Aug. 14, 2019$ / shares	May 15, 2019$ / shares	Feb. 14, 2019$ / shares
Subsequent Event [Line Items]
Per unit distribution amount (in dollars per share)			$ 4.1200	$ 1.0375	$ 1.0275	$ 1.0275	$ 1.0275	$ 4.1100	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 4.0350	$ 1.0200	$ 1.0125	$ 1.0050	$ 0.9975
Subsequent Event
Subsequent Event [Line Items]
Collective bargaining agreement, rolling extension term | h	24
Per unit distribution amount (in dollars per share)		$ 1.0375
Subsequent Event | Number of Employees, Total | Unionized Employees Concentration Risk
Subsequent Event [Line Items]
Concentration risk, percentage	13.00%