Magellan Midstream Partners (MMP) 10-Q 30 Oct 20 2020 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Oct. 29, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	1-16335
Entity Registrant Name	Magellan Midstream Partners, L.P.
Entity Central Index Key	0001126975
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
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
Entity Filer Category	Large Accelerated Filer
Title of 12(b) Security	Common Units
Trading Symbol	MMP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		223,700,943

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues	$ 598,264	$ 656,596	$ 1,841,478	$ 1,987,230
Costs and expenses:
Operating	161,982	169,387	457,597	484,341
Cost of product sales	96,119	108,757	395,864	430,727
Depreciation, amortization and impairment	71,822	56,627	193,896	181,028
General and administrative	38,016	51,156	117,092	149,534
Total costs and expenses	367,939	385,927	1,164,449	1,245,630
Other operating income (expense)	(2,863)	(379)	539	1,538
Earnings of non-controlled entities	39,135	50,189	116,484	122,229
Operating profit	266,597	320,479	794,052	865,367
Interest expense	54,212	53,750	179,371	165,322
Interest capitalized	(1,272)	(5,831)	(10,451)	(14,419)
Interest income	(260)	(648)	(903)	(2,646)
Gain on disposition of assets	0	(2,532)	(12,887)	(28,966)
Other (income) expense	1,455	2,602	3,708	9,222
Income before provision for income taxes	212,462	273,138	635,214	736,854
Provision for income taxes	824	100	2,169	2,450
Net income	$ 211,638	$ 273,038	$ 633,045	$ 734,404
Basic net income per common unit (in dollars per share)	$ 0.94	$ 1.19	$ 2.80	$ 3.21
Diluted net income per common unit (in dollars per share)	$ 0.94	$ 1.19	$ 2.80	$ 3.21
Weighted average number of common units outstanding used for basic net income per unit calculation (in shares)	225,222	228,720	226,045	228,642
Weighted average number of common units outstanding used for diluted net income per unit calculation (in shares)	225,222	228,754	226,045	228,667
Service [Member]
Revenues	$ 473,531	$ 506,432	$ 1,343,741	$ 1,473,629
Product [Member]
Revenues	119,445	144,807	481,842	497,791
Product and Service, Other [Member]
Revenues	$ 5,288	$ 5,357	$ 15,895	$ 15,810

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 211,638	$ 273,038	$ 633,045	$ 734,404
Other comprehensive income (loss):
Net loss on cash flow hedges	0	(14,181)	(10,444)	(25,216)
Reclassification of net loss on cash flow hedges to income	896	699	2,552	1,927
Net actuarial loss	0	0	(333)	(10,913)
Curtailment gain	0	0	1,703	0
Recognition of prior service credit amortization in income	(46)	(46)	(136)	(136)
Recognition of actuarial loss amortization in income	1,473	1,412	4,462	4,385
Recognition of settlement cost in income	0	439	969	2,499
Total other comprehensive income (loss)	2,323	(11,677)	(1,227)	(27,454)
Comprehensive income	$ 213,961	$ 261,361	$ 631,818	$ 706,950

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 8,541	$ 58,030
Trade accounts receivable	109,051	125,440
Other accounts receivable	27,735	23,887
Inventory	129,033	184,399
Commodity derivatives deposits	14,031	27,415
Reimbursable costs	17,065	7,878
Other current assets	35,787	32,359
Total current assets	341,243	459,408
Property, plant and equipment	8,319,400	8,431,227
Less: accumulated depreciation	2,036,351	2,027,193
Net property, plant and equipment	6,283,049	6,404,034
Investments in non-controlled entities	1,211,079	1,240,551
Right-of-use asset, operating leases	152,082	171,868
Long-term receivables	21,850	20,782
Goodwill	52,830	53,260
Other intangibles (less accumulated amortization of $6,255 and $8,575 at December 31, 2019 and September 30, 2020, respectively)	45,578	47,898
Restricted cash	11,792	26,569
Other noncurrent assets	20,693	13,359
Total assets	8,140,196	8,437,729
Current liabilities:
Accounts payable	124,612	150,992
Accrued payroll and benefits	40,285	75,511
Accrued interest payable	49,501	64,276
Accrued taxes other than income	65,283	66,007
Deferred revenue	92,227	109,654
Accrued product liabilities	79,388	90,788
Commodity derivatives contracts, net	2,888	10,222
Current portion of operating lease liability	27,177	26,221
Other current liabilities	50,258	73,205
Total current liabilities	531,619	666,876
Long-term operating lease liability	121,764	144,023
Long-term debt, net	4,900,311	4,706,075
Long-term pension and benefits	142,154	145,992
Other noncurrent liabilities	55,904	59,735
Commitments and contingencies
Partners’ capital:
Common unitholders (228,403 units and 223,701 units outstanding at December 31, 2019 and September 30, 2020, respectively)	2,551,748	2,877,105
Accumulated other comprehensive loss	(163,304)	(162,077)
Total partners’ capital	2,388,444	2,715,028
Total liabilities and partners’ capital	8,140,196	8,437,729
Finite-Lived Intangible Assets, Accumulated Amortization	$ 8,575	$ 6,255
Limited partner unitholders, units outstanding (in shares)	223,700,943	228,403,428

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities:
Net income	$ 633,045	$ 734,404
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and impairment expense	193,896	181,028
Gain on sale and retirement of assets	(13,330)	(29,227)
Earnings of non-controlled entities	(116,484)	(122,229)
Distributions from operations of non-controlled entities	152,645	138,140
Equity-based incentive compensation expense	5,580	22,577
Settlement gain, amortization of prior service credit and actuarial loss	3,953	6,748
Debt prepayment costs	12,893	8,270
Changes in operating assets and liabilities:
Trade accounts receivable and other accounts receivable	8,253	(24,954)
Inventory	54,127	(20,217)
Accounts payable	9,040	29,014
Accrued payroll and benefits	(35,226)	(13,599)
Accrued interest payable	(14,775)	(15,060)
Accrued taxes other than income	1,101	10,282
Accrued product liabilities	(11,400)	33,402
Deferred revenue	(17,427)	(13,233)
Other current and noncurrent assets and liabilities	(25,786)	(2,749)
Net cash provided by operating activities	840,105	922,597
Investing Activities:
Additions to property, plant and equipment, net	(371,170)	(718,605)
Proceeds from sale and disposition of assets	334,583	65,574
Investments in non-controlled entities	(73,678)	(158,145)
Distributions from returns of investments in non-controlled entities	0	7,500
Deposits received from undivided joint interest third party	0	68,928
Net cash used by investing activities	(110,265)	(734,748)
Financing Activities:
Distributions paid	(697,264)	(688,635)
Net commercial paper borrowings	248,000	0
Borrowings under long-term notes	499,400	996,405
Payments on long-term notes	(550,000)	(550,000)
Debt placement costs	(4,255)	(12,012)
Net payment on financial derivatives	(10,444)	(33,342)
Payments associated with settlement of equity-based incentive compensation	(14,700)	(9,764)
Debt prepayment costs	(12,893)	(8,270)
Repurchases of common units	251,950	0
Net cash used by financing activities	(794,106)	(305,618)
Change in cash, cash equivalents and restricted cash	(64,266)	(117,769)
Cash, cash equivalents and restricted cash at beginning of period	84,599	309,261
Cash, cash equivalents and restricted cash at end of period	20,333	191,492
Supplemental non-cash investing activities:
Additions to property, plant and equipment	(317,680)	(775,109)
Changes in accounts payable and other current liabilities related to capital expenditures	(53,490)	56,504
Additions to property, plant and equipment, net	$ (371,170)	$ (718,605)

Consolidated Statement of Partn

Consolidated Statement of Partners' Capital Statement - USD ($) $ in Thousands	Total	Common Unitholders	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2018	$ 2,643,434	$ 2,763,925	$ (120,491)
Comprehensive income:
Net income	734,404	734,404
Total other comprehensive income (loss)	(27,454)		(27,454)
Comprehensive income	706,950	734,404	(27,454)
Distributions	(688,635)	(688,635)
Equity-based incentive compensation expense	22,577	22,577
Issuance of limited partner units in settlement of equity-based incentive plan awards	480	480
Payments associated with settlement of equity-based incentive compensation	(9,764)	(9,764)
Other	(586)	(586)
Ending balance at Sep. 30, 2019	2,674,456	2,822,401	(147,945)
Beginning balance at Jun. 30, 2019	2,637,779	2,774,047	(136,268)
Comprehensive income:
Net income	273,038	273,038
Total other comprehensive income (loss)	(11,677)		(11,677)
Comprehensive income	261,361	273,038	(11,677)
Distributions	(231,258)	(231,258)
Equity-based incentive compensation expense	6,773	6,773
Other	(199)	(199)
Ending balance at Sep. 30, 2019	2,674,456	2,822,401	(147,945)
Beginning balance at Dec. 31, 2019	2,715,028	2,877,105	(162,077)
Comprehensive income:
Net income	633,045	633,045
Total other comprehensive income (loss)	(1,227)		(1,227)
Comprehensive income	631,818	633,045	(1,227)
Distributions	(697,264)	(697,264)
Equity-based incentive compensation expense	5,580	5,580
Repurchases of common units	(251,950)	(251,950)
Issuance of limited partner units in settlement of equity-based incentive plan awards	600	600
Payments associated with settlement of equity-based incentive compensation	(14,700)	(14,700)
Other	(668)	(668)
Ending balance at Sep. 30, 2020	2,388,444	2,551,748	(163,304)
Beginning balance at Jun. 30, 2020	2,454,738	2,620,365	(165,627)
Comprehensive income:
Net income	211,638	211,638
Total other comprehensive income (loss)	2,323		2,323
Comprehensive income	213,961	211,638	2,323
Distributions	(231,245)	(231,245)
Equity-based incentive compensation expense	1,169	1,169
Repurchases of common units	(49,968)	(49,968)
Other	(211)	(211)
Ending balance at Sep. 30, 2020	$ 2,388,444	$ 2,551,748	$ (163,304)

Organization, Description of Bu

Organization, Description of Business And Basis Of Presentation	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Description of Business and Basis of Presentation	Organization, Description of Business and Basis of Presentation Organization Unless indicated otherwise, the terms “our,” “we,” “us” and similar language refer to Magellan Midstream Partners, L.P. together with its subsidiaries. Magellan Midstream Partners, L.P. is a Delaware limited partnership, and its 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 its general partner. During first quarter 2020, we completed a reorganization of our reportable segments. This reorganization was effected to reflect changes in the management of our business in conjunction with the sale of three of our marine terminals. Following this sale, two of our remaining marine terminals were combined with our refined products segment and one terminal was combined with our crude oil segment based on the predominant types of product stored at the facilities. Accordingly, we have restated our segment disclosures for all previous periods included in this report. Description of Business On March 20, 2020, we sold three marine terminals to a subsidiary of Buckeye Partners, L.P. (“Buckeye”) for $251.8 million, net of working capital adjustments. These terminals are located in New Haven, Connecticut, Wilmington, Delaware and Marrero, Louisiana. We recognized a $6.2 million impairment loss related to the sale on our consolidated statements of income. We are principally engaged in the transportation, storage and distribution of refined petroleum products and crude oil. As of September 30, 2020, our asset portfolio consisted of: • our refined products segment, comprised of our approximately 9,800-mile refined products pipeline system with 54 connected terminals, as well as 25 independent terminals not connected to our pipeline system 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 37 million barrels of aggregate storage capacity, of which approximately 25 million barrels are used for contract storage. Approximately 1,000 miles of these pipelines, the condensate splitter and 30 million barrels of this storage capacity (including 22 million barrels used for contract storage) are wholly-owned, with the remainder owned through joint ventures. Terminology common in our industry includes the following terms, which describe products that we transport, store and distribute through our 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 referred to as distillates; • transmix is a mixture of refined products that forms when 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 butane 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, oxygenates and natural gasoline; • heavy oils and feedstocks are products used as burner fuels or feedstocks for further processing by refineries and petrochemical facilities. Heavy oils and feedstocks include No. 6 fuel oil and vacuum gas oil; • 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; and • biofuels , such as ethanol and biodiesel, are fuels derived from living materials and typically blended with other refined products as required by government mandates. We use the term petroleum products to describe any, or a combination, of the above-noted products. Basis of Presentation In the opinion of management, our accompanying consolidated financial statements which are unaudited, except for the consolidated balance sheet as of December 31, 2019, which is derived from our audited financial statements, include all normal and recurring adjustments necessary to present fairly our financial position as of September 30, 2020, the results of operations for the three and nine months ended September 30, 2019 and 2020 and cash flows for the nine months ended September 30, 2019 and 2020. The results of operations for the nine months ended September 30, 2020 are not necessarily indicative of the results to be expected for the full year ending December 31, 2020 for several reasons. Profits from our gas liquids blending activities are realized largely during the first and fourth quarters of each year. Additionally, gasoline demand, which drives transportation volumes and revenues on our refined products pipeline system, generally trends higher during the summer driving months. Further, the volatility of commodity prices impacts the profits from our commodity activities and the volume of petroleum products we transport on our pipelines. Finally, we expect the impact of COVID-19 on demand for petroleum products and the decline in commodity prices to continue to affect our results of operations in the remaining quarter of 2020, resulting in decreased transportation and terminalling revenues and reduced profits from our gas liquids blending activities. Pursuant to the rules and regulations of the Securities and Exchange Commission, the financial statements in this report do not include all of the information and notes normally included with financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 8-K filed with the Securities and Exchange Commission on May 4, 2020, which reflects changes in our reporting segments since the filing of our Annual Report on Form 10-K for the year ended December 31, 2019. Reclassifications Prior period amounts related to intrastate crude oil volumes shipped by our marketing affiliate have been reclassified from product sales revenue to transportation revenue to conform with the current period’s presentation. Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities that exist at the date of our consolidated financial statements, as well as their impact on the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. New Accounting Pronouncements In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments - Credit Losses (Topic 326)

Segment Disclosures

Segment Disclosures	9 Months Ended
	Sep. 30, 2020
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 as 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 (presented in thousands). Operating profit includes depreciation, amortization and impairment expense and general and administrative (“G&A”) expense that management does not consider when evaluating the core profitability of our separate operating segments. Three Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 352,611 $ 155,377 $ (1,556) $ 506,432 Product sales revenue 136,464 8,343 — 144,807 Affiliate management fee revenue 1,764 3,593 — 5,357 Total revenue 490,839 167,313 (1,556) 656,596 Operating expenses 127,328 44,961 (2,902) 169,387 Cost of product sales 100,416 8,341 — 108,757 Other operating (income) expense (3,249) 3,628 — 379 Earnings of non-controlled entities (4,142) (46,047) — (50,189) Operating margin 270,486 156,430 1,346 428,262 Depreciation, amortization and impairment expense 39,660 15,621 1,346 56,627 G&A expense 36,806 14,350 — 51,156 Operating profit $ 194,020 $ 126,459 $ — $ 320,479 Three Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 320,809 $ 154,652 $ (1,930) $ 473,531 Product sales revenue 114,252 5,193 — 119,445 Affiliate management fee revenue 1,579 3,709 — 5,288 Total revenue 436,640 163,554 (1,930) 598,264 Operating expenses 118,579 46,956 (3,553) 161,982 Cost of product sales 86,356 9,763 — 96,119 Other operating (income) expense (193) 3,056 — 2,863 Earnings of non-controlled entities (7,134) (32,001) — (39,135) Operating margin 239,032 135,780 1,623 376,435 Depreciation, amortization and impairment expense 41,620 28,579 1,623 71,822 G&A expense 27,487 10,529 — 38,016 Operating profit $ 169,925 $ 96,672 $ — $ 266,597 Nine Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,009,812 $ 467,652 $ (3,835) $ 1,473,629 Product sales revenue 478,441 19,350 — 497,791 Affiliate management fee revenue 5,085 10,725 — 15,810 Total revenue 1,493,338 497,727 (3,835) 1,987,230 Operating expenses 362,870 129,431 (7,960) 484,341 Cost of product sales 411,012 19,715 — 430,727 Other operating (income) expense (9,648) 8,110 — (1,538) Earnings of non-controlled entities (145) (122,084) — (122,229) Operating margin 729,249 462,555 4,125 1,195,929 Depreciation, amortization and impairment expense 128,724 48,179 4,125 181,028 G&A expense 107,179 42,355 — 149,534 Operating profit $ 493,346 $ 372,021 $ — $ 865,367 Nine Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 914,887 $ 433,947 $ (5,093) $ 1,343,741 Product sales revenue 461,701 20,141 — 481,842 Affiliate management fee revenue 4,676 11,219 — 15,895 Total revenue 1,381,264 465,307 (5,093) 1,841,478 Operating expenses 327,866 139,645 (9,914) 457,597 Cost of product sales 365,314 30,550 — 395,864 Other operating (income) expense (2,223) 1,684 — (539) Earnings of non-controlled entities (25,946) (90,538) — (116,484) Operating margin 716,253 383,966 4,821 1,105,040 Depreciation, amortization and impairment expense 128,708 60,367 4,821 193,896 G&A expense 84,802 32,290 — 117,092 Operating profit $ 502,743 $ 291,309 $ — $ 794,052

Revenue from Contract with Cust

Revenue from Contract with Customers	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer	Revenue from Contracts with Customers Statement of Income Disclosures The following tables provide details of our revenues disaggregated by key activities that comprise our performance obligations by operating segment (in thousands): Three Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 208,073 $ 95,530 $ — $ 303,603 Terminalling 48,428 3,176 — 51,604 Storage 53,433 30,037 (1,556) 81,914 Ancillary services 36,375 7,278 — 43,653 Lease revenue 6,302 19,356 — 25,658 Transportation and terminals revenue 352,611 155,377 (1,556) 506,432 Product sales revenue 136,464 8,343 — 144,807 Affiliate management fee revenue 1,764 3,593 — 5,357 Total revenue 490,839 167,313 (1,556) 656,596 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (6,302) (19,356) — (25,658) (Gains) losses from futures contracts included in product sales revenue (2) (17,061) (564) — (17,625) Affiliate management fee revenue (1,764) (3,593) — (5,357) Total revenue from contracts with customers under ASC 606 $ 465,712 $ 143,800 $ (1,556) $ 607,956 (1) Lease revenue is accounted for under Accounting Standards Codification (“ASC”) 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Three Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 192,194 $ 90,156 $ — $ 282,350 Terminalling 41,227 5,651 — 46,878 Storage 49,366 32,876 (1,930) 80,312 Ancillary services 32,707 6,828 — 39,535 Lease revenue 5,315 19,141 — 24,456 Transportation and terminals revenue 320,809 154,652 (1,930) 473,531 Product sales revenue 114,252 5,193 — 119,445 Affiliate management fee revenue 1,579 3,709 — 5,288 Total revenue 436,640 163,554 (1,930) 598,264 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (5,315) (19,141) — (24,456) (Gains) losses from futures contracts included in product sales revenue (2) 6,850 884 — 7,734 Affiliate management fee revenue (1,579) (3,709) — (5,288) Total revenue from contracts with customers under ASC 606 $ 436,596 $ 141,588 $ (1,930) $ 576,254 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Nine Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 584,662 $ 290,754 $ — $ 875,416 Terminalling 138,968 13,146 — 152,114 Storage 162,139 89,313 (3,835) 247,617 Ancillary services 103,287 20,488 — 123,775 Lease revenue 20,756 53,951 — 74,707 Transportation and terminals revenue 1,009,812 467,652 (3,835) 1,473,629 Product sales revenue 478,441 19,350 — 497,791 Affiliate management fee revenue 5,085 10,725 — 15,810 Total revenue 1,493,338 497,727 (3,835) 1,987,230 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (20,756) (53,951) — (74,707) (Gains) losses from futures contracts included in product sales revenue (2) 39,761 1,743 — 41,504 Affiliate management fee revenue (5,085) (10,725) — (15,810) Total revenue from contracts with customers under ASC 606 $ 1,507,258 $ 434,794 $ (3,835) $ 1,938,217 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Nine Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 533,451 $ 244,154 $ — $ 777,605 Terminalling 117,916 14,702 — 132,618 Storage 152,933 97,103 (5,093) 244,943 Ancillary services 93,340 20,746 — 114,086 Lease revenue 17,247 57,242 — 74,489 Transportation and terminals revenue 914,887 433,947 (5,093) 1,343,741 Product sales revenue 461,701 20,141 — 481,842 Affiliate management fee revenue 4,676 11,219 — 15,895 Total revenue 1,381,264 465,307 (5,093) 1,841,478 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (17,247) (57,242) — (74,489) (Gains) losses from futures contracts included in product sales revenue (2) (89,763) 483 — (89,280) Affiliate management fee revenue (4,676) (11,219) — (15,895) Total revenue from contracts with customers under ASC 606 $ 1,269,578 $ 397,329 $ (5,093) $ 1,661,814 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Balance Sheet Disclosures The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in thousands): December 31, 2019 September 30, 2020 Accounts receivable from contracts with customers $ 124,701 $ 107,317 Contract assets $ 8,071 $ 13,834 Contract liabilities $ 111,670 $ 94,865 For the three and nine months ended September 30, 2020, respectively, we recognized $9.3 million and $89.3 million of transportation and terminals revenue that was recorded in deferred revenue as of December 31, 2019. Unfulfilled Performance Obligations The following table provides the aggregate amount of the transaction price allocated to our unfulfilled performance obligations (“UPOs”) as of September 30, 2020 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 thousands): Refined Products Crude Oil Total Balances at September 30, 2020 $ 2,137,259 $ 1,276,836 $ 3,414,095 Remaining terms 1 - 18 years 1 - 11 years Estimated revenues from UPOs to be recognized in the next 12 months $ 407,914 $ 269,156 $ 677,070

Investments in Non-Controlled E

Investments in Non-Controlled Entities	9 Months Ended
	Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Investments in Non-Controlled Entities	Investments in Non-Controlled Entities Our investments in non-controlled entities at September 30, 2020 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”) 50% 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 the first quarter of 2020, we sold a 10% interest in Saddlehorn to an affiliate of Black Diamond Gathering LLC, which is majority-owned by Noble Midstream Partners LP, reducing our ongoing investment in Saddlehorn to a 30% interest. We received $79.9 million in cash from the sale, and we recorded a gain of $12.9 million on our consolidated statements of income for the nine month period ended September 30, 2020. 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 $1.2 million and $0.7 million during the three months ended September 30, 2019 and 2020, respectively, and $3.8 million and $2.9 million during the nine months ended September 30, 2019 and 2020, respectively. We recorded the following revenue and expense transactions with certain of these non-controlled entities in our consolidated statements of income (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2020 2019 2020 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 10,737 $ 9,323 $ 31,063 $ 32,748 Double Eagle, throughput revenue $ 1,582 $ 995 $ 4,813 $ 4,016 Saddlehorn, storage revenue $ 566 $ 580 $ 1,669 $ 1,711 Operating expenses: Seabrook, storage lease and ancillary services $ 6,267 $ 7,175 $ 19,417 $ 21,553 Other operating income: Seabrook, gain on sale of air emission credits $ — $ — $ — $ 1,410 MVP, easement sale $ 289 $ — $ 289 $ — Our consolidated balance sheets reflected the following balances related to our investments in non-controlled entities (in thousands): December 31, 2019 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 392 $ 26 $ — $ — Double Eagle $ 445 $ — $ — $ — HoustonLink $ 60 $ — $ — $ — MVP $ — $ 418 $ — $ — Powder Springs $ 161 $ — $ — $ 6,006 Saddlehorn $ — $ 126 $ — $ — Seabrook $ 941 $ — $ 1,349 $ — September 30, 2020 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 382 $ 441 $ 225 $ — Double Eagle $ 286 $ — $ — $ — MVP $ — $ 460 $ — $ — Powder Springs $ — $ — $ — $ 8,970 Saddlehorn $ — $ 142 $ — $ — Seabrook $ 497 $ — $ 4,267 $ — We are a party to 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 7 – Leases for more details regarding this lease). The financial results from MVP, Powder Springs and Texas Frontera are included in our refined products segment and the financial results from BridgeTex, Double Eagle, HoustonLink, Saddlehorn and Seabrook are included in our crude oil segment, each as earnings of non-controlled entities. A summary of our investments in non-controlled entities follows (in thousands): Investments at 12/31/2019 $ 1,240,551 Additional investment 73,678 Sale of ownership interest in Saddlehorn (66,989) Earnings of non-controlled entities: Proportionate share of earnings 117,848 Amortization of excess investment and capitalized interest (1,364) Earnings of non-controlled entities 116,484 Less: Distributions from operations of non-controlled entities 152,645 Investments at 9/30/2020 $ 1,211,079

Inventory

Inventory	9 Months Ended
	Sep. 30, 2020
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory at December 31, 2019 and September 30, 2020 was as follows (in thousands): December 31, 2019 September 30, Refined products $ 96,128 $ 60,515 Liquefied petroleum gases 29,982 30,155 Transmix 39,546 20,821 Crude oil 12,714 12,872 Additives 6,029 4,670 Total inventory $ 184,399 $ 129,033

Debt

Debt	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Debt	Debt Long-term debt at December 31, 2019 and September 30, 2020 was as follows (in thousands): December 31, September 30, Commercial paper $ — $ 248,000 4.25% Notes due 2021 550,000 — 3.20% Notes due 2025 250,000 250,000 5.00% Notes due 2026 650,000 650,000 3.25% Notes due 2030 — 500,000 6.40% Notes due 2037 250,000 250,000 4.20% Notes due 2042 250,000 250,000 5.15% Notes due 2043 550,000 550,000 4.20% Notes due 2045 250,000 250,000 4.25% Notes due 2046 500,000 500,000 4.20% Notes due 2047 500,000 500,000 4.85% Notes due 2049 500,000 500,000 3.95% Notes due 2050 500,000 500,000 Face value of long-term debt 4,750,000 4,948,000 Unamortized debt issuance costs (1) (35,263) (37,407) Net unamortized debt discount (1) (8,662) (10,282) Long-term debt, net $ 4,706,075 $ 4,900,311 (1) Debt issuance costs, note discounts and premiums and realized gains and losses of historical fair value hedges 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. 2020 Debt Issuance In May 2020, we issued $500.0 million of 3.25% senior notes due 2030 in an underwritten public offering. The notes were issued at 99.88% of par. Net proceeds from this offering were approximately $495.2 million after underwriting discounts and offering expenses. The net proceeds from this offering, along with commercial paper borrowings and cash on hand, were used to redeem our $550 million senior notes due in 2021. We recognized $12.9 million of debt prepayment costs as interest expense in our consolidated statements of income related to this early redemption, partially offset by the recognition of a $0.7 million unamortized debt premium, for the nine months ended September 30, 2020. Other Debt Revolving Credit Facility. At September 30, 2020, 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 this facility are unsecured and bear interest at LIBOR plus a spread ranging from 0.875% to 1.500% based on our credit ratings. Additionally, an unused commitment fee is assessed at a rate between 0.075% and 0.200% depending on our credit ratings. The unused commitment fee was 0.125% at September 30, 2020. Borrowings under this facility may be used for general partnership purposes, including capital expenditures. As of December 31, 2019 and September 30, 2020, 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. Commercial Paper Program. We have a commercial paper program under which we may issue commercial paper notes in an amount up to the available capacity under our $1.0 billion revolving credit facility. The maturities of the commercial paper notes vary, but may not exceed 397 days from the date of issuance. Because the commercial paper we can issue is limited to amounts available under our revolving credit facility, amounts outstanding under the program are classified as long-term debt. The commercial paper notes are sold under customary terms in the commercial paper market and are issued at a discount from par, or alternatively, are sold at par and bear varying interest rates on a fixed or floating basis. Commercial paper borrowings outstanding at September 30, 2020 were $248.0 million. The weighted-average interest rate for commercial paper borrowings based on the number of days outstanding was 0.6% for the nine months ended September 30, 2020.

Leases

Leases	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Leases	Leases Operating Leases – Lessee Related-Party Operating Lease . We have 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. The following tables provide information about our third-party and Seabrook operating leases (dollars in thousands): Three Months Ended September 30, 2019 Three Months Ended September 30, 2020 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 6,206 $ 6,267 $ 12,473 $ 6,474 $ 7,175 $ 13,649 Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2020 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 17,631 $ 19,417 $ 37,048 $ 18,173 $ 21,553 $ 39,726 December 31, 2019 September 30, 2020 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Current lease liability $ 15,136 $ 11,085 $ 26,221 $ 15,721 $ 11,456 $ 27,177 Long-term lease liability $ 81,508 $ 62,515 $ 144,023 $ 67,323 $ 54,441 $ 121,764 Right-of-use asset $ 98,268 $ 73,600 $ 171,868 $ 86,185 $ 65,897 $ 152,082

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2020
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit PlansWe 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 were $2.8 million for each of the three months ended September 30, 2019 and 2020, and $9.3 million and $9.7 million for the nine months ended September 30, 2019 and 2020, respectively. In addition, we sponsor two pension plans, including one for all non-union employees and one that covers union employees, and a postretirement benefit plan for certain employees. Prior to the March 2020 sale of our New Haven terminal (See Note 1 – Organization, Description of Business and Basis of Presentation) , we sponsored an additional union pension plan that covered union employees at that terminal. Net periodic benefit expense for the three and nine months ended September 30, 2019 and 2020 was as follows (in thousands): Three Months Ended Three Months Ended September 30, 2019 September 30, 2020 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 6,260 $ 48 $ 6,898 $ 64 Interest cost 3,026 126 2,738 121 Expected return on plan assets (2,354) — (2,829) — Amortization of prior service credit (46) — (46) — Amortization of actuarial loss 1,352 60 1,346 127 Settlement cost 439 — — — Net periodic benefit cost $ 8,677 $ 234 $ 8,107 $ 312 Nine Months Ended Nine Months Ended September 30, 2019 September 30, 2020 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 19,145 $ 145 $ 20,836 $ 193 Interest cost 9,136 380 8,251 360 Expected return on plan assets (7,045) — (8,524) — Amortization of prior service credit (136) — (136) — Amortization of actuarial loss 4,137 248 4,080 382 Settlement cost 2,499 — 969 — Settlement gain on disposition of assets — — (1,342) — Net periodic benefit cost $ 27,736 $ 773 $ 24,134 $ 935 The service component of our net periodic benefit costs is presented in operating expense and G&A expense, and the non-service components are presented in other (income) expense in our consolidated statements of income. The changes in accumulated other comprehensive loss (“AOCL”) related to employee benefit plan assets and benefit obligations for the three and nine months ended September 30, 2019 and 2020 were as follows (in thousands): Three Months Ended Three Months Ended September 30, 2019 September 30, 2020 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (93,876) $ (6,105) $ (98,610) $ (9,269) Recognition of prior service credit amortization in income (46) — (46) — Recognition of actuarial loss amortization in income 1,352 60 1,346 127 Recognition of settlement cost in income 439 — — — Ending balance $ (92,131) $ (6,045) $ (97,310) $ (9,142) Nine Months Ended Nine Months Ended September 30, 2019 September 30, 2020 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (88,602) $ (5,409) $ (104,739) $ (8,378) Net actuarial gain (loss) (10,029) (884) 813 (1,146) Curtailment gain — — 1,703 — Recognition of prior service credit amortization in income (136) — (136) — Recognition of actuarial loss amortization in income 4,137 248 4,080 382 Recognition of settlement cost in income 2,499 — 969 — Ending balance $ (92,131) $ (6,045) $ (97,310) $ (9,142) Contributions estimated to be paid into the plans in 2020 are $29.3 million and $0.9 million for the pension plans and other postretirement benefit plan, respectively.

Long-Term Incentive Plan

Long-Term Incentive Plan	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Long-Term Incentive Plan	Long-Term Incentive Plan The compensation committee of our general partner’s board of directors administers our long-term incentive plan (“LTIP”) covering certain of our employees and the independent directors of our general partner. The LTIP primarily consists of phantom units and permits the grant of awards covering an aggregate payout of 11.9 million of our common units. The estimated units remaining available under the LTIP at September 30, 2020 total 1.0 million. Equity-based incentive compensation expense for the three and nine months ended September 30, 2019 and 2020, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2020 2019 2020 Performance-based awards $ 5,162 $ (1,121) $ 18,123 $ (1,247) Time-based awards 1,611 2,290 4,454 6,827 Total $ 6,773 $ 1,169 $ 22,577 $ 5,580 During 2020, we reduced our LTIP accruals related to performance awards vesting in 2020 and 2021 to reflect the estimated impacts of COVID-19 related reductions in economic activity and the significant decline in commodity prices. On January 31, 2020, 378,144 unit awards were granted pursuant to our LTIP. These awards included both performance-based and time-based awards and have a three-year vesting period that will end on December 31, 2022. Basic and Diluted Net Income Per Common Unit The difference between our actual common units outstanding and our weighted-average number of common units outstanding used to calculate basic net income per unit is due to the impact of: (i) the unit awards issued to non-employee directors 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 due to the dilutive effect of unit awards associated with our LTIP that have not yet vested.

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Interest Rate Derivatives In second quarter 2020, upon issuance of $500.0 million of 3.25% notes due 2030, we terminated and settled $100.0 million of treasury lock agreements that we had previously entered into to protect against the variability of future interest payments 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 and will be recognized into earnings as an adjustment to our periodic interest expense over the term of the hedged transaction in accordance with our hedging strategy. Commodity Derivatives Our open futures contracts at September 30, 2020 were as follows: Type of Contract/Accounting Methodology Product Represented by the Contract and Associated Barrels Maturity Dates Futures - Economic Hedges 3.1 million barrels of refined products and crude oil Between October 2020 and November 2022 Futures - Economic Hedges 0.6 million barrels of gas liquids Between October and December 2020 Commodity Derivatives Contracts and Deposits Offsets At December 31, 2019 and September 30, 2020, we had made margin deposits of $27.4 million and $14.0 million, respectively, for our futures 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 futures 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 futures contracts separately from the related margin deposits on our consolidated balance sheets. Additionally, we have the right to offset the fair values of our futures 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 a master netting arrangement are provided below as of December 31, 2019 and September 30, 2020 (in thousands): 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 12/31/2019 $ (11,033) $ 811 $ (10,222) $ 27,415 $ 17,193 As of 9/30/2020 $ (4,386) $ 2,740 $ (1,646) $ 14,031 $ 12,385 (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, 2019 and September 30, 2020 was $17.3 million and $12.3 million, respectively. Impact of Derivatives on Our Financial Statements Comprehensive Income The changes in derivative activity included in AOCL for the three and nine months ended September 30, 2019 and 2020 were as follows (in thousands): Three Months Ended Nine Months Ended September 30, September 30, Derivative Losses Included in AOCL 2019 2020 2019 2020 Beginning balance $ (36,287) $ (57,748) $ (26,480) $ (48,960) Net loss on cash flow hedges (14,181) — (25,216) (10,444) Reclassification of net loss on cash flow hedges to income 699 896 1,927 2,552 Ending balance $ (49,769) $ (56,852) $ (49,769) $ (56,852) The following is a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2019 and 2020 of derivatives that were designated as cash flow hedges (in thousands): 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 Three Months Ended September 30, 2019 $ (14,181) Interest expense $ (699) Three Months Ended September 30, 2020 $ — Interest expense $ (896) Nine Months Ended September 30, 2019 $ (25,216) Interest expense $ (1,927) Nine Months Ended September 30, 2020 $ (10,444) Interest expense $ (2,552) As of September 30, 2020, the net loss estimated to be classified to interest expense over the next twelve months from AOCL is approximately $3.3 million. This amount relates to the amortization of losses on interest rate contracts over the life of the related debt instruments. The following table provides a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2019 and 2020 of derivatives that were not designated as hedging instruments (in thousands): Amount of Gain (Loss) Recognized on Derivatives Three Months Ended Nine Months Ended Location of Gain (Loss) September 30, September 30, Derivative Instrument 2019 2020 2019 2020 Futures contracts Product sales revenue $ 17,626 $ (7,734) $ (41,504) $ 89,280 Futures contracts Cost of product sales (5,581) 1,815 (9,456) (2,529) Basis derivative agreement Other operating income (expense) (3,910) (3,155) (8,869) (2,654) Total $ 8,135 $ (9,074) $ (59,829) $ 84,097 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, 2019 and September 30, 2020 (in thousands): December 31, 2019 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 811 Commodity derivatives contracts, net $ 11,033 Basis derivative agreement Other current assets — Other current liabilities 8,457 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 8,847 Total $ 811 Total $ 28,337 September 30, 2020 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 1,095 Commodity derivatives contracts, net $ 3,983 Futures contracts Other noncurrent assets 1,645 Other noncurrent assets 403 Basis derivative agreement Other current assets — Other current liabilities 9,280 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 2,994 Total $ 2,740 Total $ 16,660

Fair Value

Fair Value	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Fair Value Methods and Assumptions - Financial Assets and Liabilities We used the following methods and assumptions in estimating fair value of our financial assets and liabilities: • Commodity derivatives contracts . These include exchange-traded futures contracts related to petroleum products. These contracts are carried at fair value on our consolidated balance sheets and are valued based on quoted prices in active markets. See Note 10 – 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 10 - 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 primarily include payments receivable under a sales-type leasing arrangement and cost reimbursement payments receivable. 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. • Guarantees and contractual obligations. At September 30, 2020, these primarily include a long-term contractual obligation we entered into in connection with the sale of our three marine terminals to a subsidiary of Buckeye. This obligation requires us to perform certain environmental remediation work on Buckeye’s behalf at the New Haven terminal. The 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, 2019 and September 30, 2020; 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, 2019 and September 30, 2020 based on the three levels established by ASC 820, Fair Value Measurements and Disclosures (in thousands): December 31, 2019 Assets (Liabilities) Fair Value Measurements using: Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (10,222) $ (10,222) $ (10,222) $ — $ — Basis derivative agreement $ (17,304) $ (17,304) $ — $ (17,304) Long-term receivables $ 20,782 $ 20,782 $ — $ — $ 20,782 Guarantees and contractual obligations $ (408) $ (408) $ — $ — $ (408) Debt $ (4,706,075) $ (5,192,685) $ — $ (5,192,685) $ — September 30, 2020 Assets (Liabilities) Fair Value Measurements using: Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (1,646) $ (1,646) $ (1,646) $ — $ — Basis derivative agreement $ (12,274) $ (12,274) $ — $ (12,274) $ — Long-term receivables $ 21,850 $ 21,850 $ — $ — $ 21,850 Guarantees and contractual obligations $ (11,239) $ (11,239) $ — $ — $ (11,239) Debt $ (4,900,311) $ (4,872,340) $ — $ (4,872,340) $ —

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Butane Blending Patent Infringement Proceeding On October 4, 2017, Sunoco Partners Marketing & Terminals L.P. (“Sunoco”) brought an action for patent infringement in the U.S. District Court for the District of Delaware alleging Magellan Midstream Partners, L.P. (“Magellan”) and Powder Springs Logistics, LLC (“Powder Springs”) are infringing patents related 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 nine Magellan facilities, in addition to Powder Springs. Sunoco is seeking monetary damages, attorneys’ fees and a permanent injunction enjoining Magellan and Powder Springs from infringing the subject patents. We deny and are vigorously defending against all claims asserted by Sunoco. Although it is not possible to predict the ultimate outcome, we believe the ultimate 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 $14.9 million and $11.9 million at December 31, 2019 and September 30, 2020, 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 generally included in operating expenses on our consolidated statements of income. Environmental expenses were $0.8 million and $0.1 million for the three months ended September 30, 2019 and 2020, respectively, and $4.2 million and $1.3 million for the nine months ended September 30, 2019 and 2020, respectively. Environmental Receivables Receivables from insurance carriers and other third parties related to environmental matters were $2.9 million at December 31, 2019, of which $1.8 million and $1.1 million were recorded to other accounts receivable and long-term receivables, respectively, on our consolidated balance sheets. Receivables from insurance carriers and other third parties related to environmental matters were $1.8 million at September 30, 2020, of which $1.0 million and $0.8 million were recorded to other accounts receivable and long-term receivables, respectively, on our consolidated balance sheets. Other In first quarter 2020, we entered into a long-term contractual obligation in connection with the sale of three marine terminals to Buckeye. This obligation requires us to perform certain environmental remediation work on Buckeye’s behalf at the New Haven terminal. As of September 30, 2020, our consolidated balance sheets reflected a current liability of $0.6 million and a noncurrent liability of $10.2 million to reflect the fair value of this obligation. We have entered into an agreement to guarantee our 50% pro rata share, up to $25.0 million, of obligations under Powder Springs’ credit facility. As of September 30, 2020, 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.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsStacy Methvin is an independent member of our general partner’s board of directors and is also a director of one of our customers. We received tariff, terminalling and other ancillary revenue from this customer of $7.1 million and $8.6 million for the three months ended September 30, 2019 and 2020, respectively, and $21.4 million and $24.3 million for the nine months ended September 30, 2019 and 2020, respectively. We recorded receivables of $3.8 million and $3.7 million from this customer at December 31, 2019 and September 30, 2020, respectively. We also received storage and other miscellaneous revenue of $0.1 million and $0.3 million for the three and nine months ended September 30, 2020, respectively, from a subsidiary of a separate company for which Stacy Methvin serves as a director. See Note 4 – Investments in Non-Controlled Entities and Note 7 – Leases

Partners' Capital and Distribut

Partners' Capital and Distributions	9 Months Ended
	Sep. 30, 2020
Partners' Capital Notes [Abstract]
Partners' Capital and Distributions	Partners’ Capital and Distributions Partners’ Capital Our general partner’s board of directors authorized the repurchase of up to $750 million of our common units through 2022. 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 December 31, 2019 through September 30, 2020: Common units outstanding on December 31, 2019 228,403,428 Units repurchased during 2020 (4,987,128) January 2020–Settlement of employee LTIP awards 275,093 During 2020–Other (a) 9,550 Common units outstanding on September 30, 2020 223,700,943 (a) Common units issued to settle the equity-based retainers paid to independent directors of our general partner. Distributions Distributions we paid during 2019 and 2020 were as follows (in thousands, except per unit amounts): Payment Date Per Unit Cash Total Cash Distribution 02/14/2019 $ 0.9975 $ 227,832 05/15/2019 1.0050 229,545 08/14/2019 1.0125 231,258 Through 09/30/2019 3.0150 688,635 11/14/2019 1.0200 232,971 Total $ 4.0350 $ 921,606 02/14/2020 $ 1.0275 $ 234,774 05/15/2020 1.0275 231,245 08/14/2020 1.0275 231,245 Through 09/30/2020 3.0825 697,264 11/13/2020 (a) 1.0275 229,853 Total $ 4.1100 $ 927,117

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Recognizable events No recognizable events occurred subsequent to September 30, 2020. Non-recognizable events

Organization, Description of _2

Organization, Description of Business And Basis Of Presentation (Policies)	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation In the opinion of management, our accompanying consolidated financial statements which are unaudited, except for the consolidated balance sheet as of December 31, 2019, which is derived from our audited financial statements, include all normal and recurring adjustments necessary to present fairly our financial position as of September 30, 2020, the results of operations for the three and nine months ended September 30, 2019 and 2020 and cash flows for the nine months ended September 30, 2019 and 2020. The results of operations for the nine months ended September 30, 2020 are not necessarily indicative of the results to be expected for the full year ending December 31, 2020 for several reasons. Profits from our gas liquids blending activities are realized largely during the first and fourth quarters of each year. Additionally, gasoline demand, which drives transportation volumes and revenues on our refined products pipeline system, generally trends higher during the summer driving months. Further, the volatility of commodity prices impacts the profits from our commodity activities and the volume of petroleum products we transport on our pipelines. Finally, we expect the impact of COVID-19 on demand for petroleum products and the decline in commodity prices to continue to affect our results of operations in the remaining quarter of 2020, resulting in decreased transportation and terminalling revenues and reduced profits from our gas liquids blending activities. Pursuant to the rules and regulations of the Securities and Exchange Commission, the financial statements in this report do not include all of the information and notes normally included with financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 8-K filed with the Securities and Exchange Commission on May 4, 2020, which reflects changes in our reporting segments since the filing of our Annual Report on Form 10-K for the year ended December 31, 2019.
Use of Estimates	Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities that exist at the date of our consolidated financial statements, as well as their impact
New Accounting Pronouncements	New Accounting Pronouncements In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments - Credit Losses (Topic 326)

Segment Disclosures (Tables)

Segment Disclosures (Tables)	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Schedule of Business Segment Reporting Information	Three Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 352,611 $ 155,377 $ (1,556) $ 506,432 Product sales revenue 136,464 8,343 — 144,807 Affiliate management fee revenue 1,764 3,593 — 5,357 Total revenue 490,839 167,313 (1,556) 656,596 Operating expenses 127,328 44,961 (2,902) 169,387 Cost of product sales 100,416 8,341 — 108,757 Other operating (income) expense (3,249) 3,628 — 379 Earnings of non-controlled entities (4,142) (46,047) — (50,189) Operating margin 270,486 156,430 1,346 428,262 Depreciation, amortization and impairment expense 39,660 15,621 1,346 56,627 G&A expense 36,806 14,350 — 51,156 Operating profit $ 194,020 $ 126,459 $ — $ 320,479 Three Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 320,809 $ 154,652 $ (1,930) $ 473,531 Product sales revenue 114,252 5,193 — 119,445 Affiliate management fee revenue 1,579 3,709 — 5,288 Total revenue 436,640 163,554 (1,930) 598,264 Operating expenses 118,579 46,956 (3,553) 161,982 Cost of product sales 86,356 9,763 — 96,119 Other operating (income) expense (193) 3,056 — 2,863 Earnings of non-controlled entities (7,134) (32,001) — (39,135) Operating margin 239,032 135,780 1,623 376,435 Depreciation, amortization and impairment expense 41,620 28,579 1,623 71,822 G&A expense 27,487 10,529 — 38,016 Operating profit $ 169,925 $ 96,672 $ — $ 266,597 Nine Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 1,009,812 $ 467,652 $ (3,835) $ 1,473,629 Product sales revenue 478,441 19,350 — 497,791 Affiliate management fee revenue 5,085 10,725 — 15,810 Total revenue 1,493,338 497,727 (3,835) 1,987,230 Operating expenses 362,870 129,431 (7,960) 484,341 Cost of product sales 411,012 19,715 — 430,727 Other operating (income) expense (9,648) 8,110 — (1,538) Earnings of non-controlled entities (145) (122,084) — (122,229) Operating margin 729,249 462,555 4,125 1,195,929 Depreciation, amortization and impairment expense 128,724 48,179 4,125 181,028 G&A expense 107,179 42,355 — 149,534 Operating profit $ 493,346 $ 372,021 $ — $ 865,367 Nine Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 914,887 $ 433,947 $ (5,093) $ 1,343,741 Product sales revenue 461,701 20,141 — 481,842 Affiliate management fee revenue 4,676 11,219 — 15,895 Total revenue 1,381,264 465,307 (5,093) 1,841,478 Operating expenses 327,866 139,645 (9,914) 457,597 Cost of product sales 365,314 30,550 — 395,864 Other operating (income) expense (2,223) 1,684 — (539) Earnings of non-controlled entities (25,946) (90,538) — (116,484) Operating margin 716,253 383,966 4,821 1,105,040 Depreciation, amortization and impairment expense 128,708 60,367 4,821 193,896 G&A expense 84,802 32,290 — 117,092 Operating profit $ 502,743 $ 291,309 $ — $ 794,052

Revenue from Contract with Cu_2

Revenue from Contract with Customers (Tables)	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue from External Customers by Products and Services	The following tables provide details of our revenues disaggregated by key activities that comprise our performance obligations by operating segment (in thousands): Three Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 208,073 $ 95,530 $ — $ 303,603 Terminalling 48,428 3,176 — 51,604 Storage 53,433 30,037 (1,556) 81,914 Ancillary services 36,375 7,278 — 43,653 Lease revenue 6,302 19,356 — 25,658 Transportation and terminals revenue 352,611 155,377 (1,556) 506,432 Product sales revenue 136,464 8,343 — 144,807 Affiliate management fee revenue 1,764 3,593 — 5,357 Total revenue 490,839 167,313 (1,556) 656,596 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (6,302) (19,356) — (25,658) (Gains) losses from futures contracts included in product sales revenue (2) (17,061) (564) — (17,625) Affiliate management fee revenue (1,764) (3,593) — (5,357) Total revenue from contracts with customers under ASC 606 $ 465,712 $ 143,800 $ (1,556) $ 607,956 (1) Lease revenue is accounted for under Accounting Standards Codification (“ASC”) 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Three Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 192,194 $ 90,156 $ — $ 282,350 Terminalling 41,227 5,651 — 46,878 Storage 49,366 32,876 (1,930) 80,312 Ancillary services 32,707 6,828 — 39,535 Lease revenue 5,315 19,141 — 24,456 Transportation and terminals revenue 320,809 154,652 (1,930) 473,531 Product sales revenue 114,252 5,193 — 119,445 Affiliate management fee revenue 1,579 3,709 — 5,288 Total revenue 436,640 163,554 (1,930) 598,264 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (5,315) (19,141) — (24,456) (Gains) losses from futures contracts included in product sales revenue (2) 6,850 884 — 7,734 Affiliate management fee revenue (1,579) (3,709) — (5,288) Total revenue from contracts with customers under ASC 606 $ 436,596 $ 141,588 $ (1,930) $ 576,254 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Nine Months Ended September 30, 2019 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 584,662 $ 290,754 $ — $ 875,416 Terminalling 138,968 13,146 — 152,114 Storage 162,139 89,313 (3,835) 247,617 Ancillary services 103,287 20,488 — 123,775 Lease revenue 20,756 53,951 — 74,707 Transportation and terminals revenue 1,009,812 467,652 (3,835) 1,473,629 Product sales revenue 478,441 19,350 — 497,791 Affiliate management fee revenue 5,085 10,725 — 15,810 Total revenue 1,493,338 497,727 (3,835) 1,987,230 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (20,756) (53,951) — (74,707) (Gains) losses from futures contracts included in product sales revenue (2) 39,761 1,743 — 41,504 Affiliate management fee revenue (5,085) (10,725) — (15,810) Total revenue from contracts with customers under ASC 606 $ 1,507,258 $ 434,794 $ (3,835) $ 1,938,217 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Nine Months Ended September 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 533,451 $ 244,154 $ — $ 777,605 Terminalling 117,916 14,702 — 132,618 Storage 152,933 97,103 (5,093) 244,943 Ancillary services 93,340 20,746 — 114,086 Lease revenue 17,247 57,242 — 74,489 Transportation and terminals revenue 914,887 433,947 (5,093) 1,343,741 Product sales revenue 461,701 20,141 — 481,842 Affiliate management fee revenue 4,676 11,219 — 15,895 Total revenue 1,381,264 465,307 (5,093) 1,841,478 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (17,247) (57,242) — (74,489) (Gains) losses from futures contracts included in product sales revenue (2) (89,763) 483 — (89,280) Affiliate management fee revenue (4,676) (11,219) — (15,895) Total revenue from contracts with customers under ASC 606 $ 1,269,578 $ 397,329 $ (5,093) $ 1,661,814
Contract with Customer, Asset and Liability	The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in thousands): December 31, 2019 September 30, 2020 Accounts receivable from contracts with customers $ 124,701 $ 107,317 Contract assets $ 8,071 $ 13,834 Contract liabilities $ 111,670 $ 94,865
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	The following table provides the aggregate amount of the transaction price allocated to our unfulfilled performance obligations (“UPOs”) as of September 30, 2020 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 thousands): Refined Products Crude Oil Total Balances at September 30, 2020 $ 2,137,259 $ 1,276,836 $ 3,414,095 Remaining terms 1 - 18 years 1 - 11 years Estimated revenues from UPOs to be recognized in the next 12 months $ 407,914 $ 269,156 $ 677,070

Investments in Non-Controlled_2

Investments in Non-Controlled Entities (Tables)	9 Months Ended
	Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Our investments in non-controlled entities at September 30, 2020 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”) 50% 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 the first quarter of 2020, we sold a 10% interest in Saddlehorn to an affiliate of Black Diamond Gathering LLC, which is majority-owned by Noble Midstream Partners LP, reducing our ongoing investment in Saddlehorn to a 30% interest. We received $79.9 million in cash from the sale, and we recorded a gain of $12.9 million on our consolidated statements of income for the nine month period ended September 30, 2020. 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 $1.2 million and $0.7 million during the three months ended September 30, 2019 and 2020, respectively, and $3.8 million and $2.9 million during the nine months ended September 30, 2019 and 2020, respectively. We recorded the following revenue and expense transactions with certain of these non-controlled entities in our consolidated statements of income (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2020 2019 2020 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 10,737 $ 9,323 $ 31,063 $ 32,748 Double Eagle, throughput revenue $ 1,582 $ 995 $ 4,813 $ 4,016 Saddlehorn, storage revenue $ 566 $ 580 $ 1,669 $ 1,711 Operating expenses: Seabrook, storage lease and ancillary services $ 6,267 $ 7,175 $ 19,417 $ 21,553 Other operating income: Seabrook, gain on sale of air emission credits $ — $ — $ — $ 1,410 MVP, easement sale $ 289 $ — $ 289 $ — Our consolidated balance sheets reflected the following balances related to our investments in non-controlled entities (in thousands): December 31, 2019 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 392 $ 26 $ — $ — Double Eagle $ 445 $ — $ — $ — HoustonLink $ 60 $ — $ — $ — MVP $ — $ 418 $ — $ — Powder Springs $ 161 $ — $ — $ 6,006 Saddlehorn $ — $ 126 $ — $ — Seabrook $ 941 $ — $ 1,349 $ — September 30, 2020 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 382 $ 441 $ 225 $ — Double Eagle $ 286 $ — $ — $ — MVP $ — $ 460 $ — $ — Powder Springs $ — $ — $ — $ 8,970 Saddlehorn $ — $ 142 $ — $ — Seabrook $ 497 $ — $ 4,267 $ — We are a party to 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 7 – Leases for more details regarding this lease). The financial results from MVP, Powder Springs and Texas Frontera are included in our refined products segment and the financial results from BridgeTex, Double Eagle, HoustonLink, Saddlehorn and Seabrook are included in our crude oil segment, each as earnings of non-controlled entities. A summary of our investments in non-controlled entities follows (in thousands): Investments at 12/31/2019 $ 1,240,551 Additional investment 73,678 Sale of ownership interest in Saddlehorn (66,989) Earnings of non-controlled entities: Proportionate share of earnings 117,848 Amortization of excess investment and capitalized interest (1,364) Earnings of non-controlled entities 116,484 Less: Distributions from operations of non-controlled entities 152,645 Investments at 9/30/2020 $ 1,211,079

Inventory (Tables)

Inventory (Tables)	9 Months Ended
	Sep. 30, 2020
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventory at December 31, 2019 and September 30, 2020 was as follows (in thousands): December 31, 2019 September 30, Refined products $ 96,128 $ 60,515 Liquefied petroleum gases 29,982 30,155 Transmix 39,546 20,821 Crude oil 12,714 12,872 Additives 6,029 4,670 Total inventory $ 184,399 $ 129,033

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Consolidated Debt	Long-term debt at December 31, 2019 and September 30, 2020 was as follows (in thousands): December 31, September 30, Commercial paper $ — $ 248,000 4.25% Notes due 2021 550,000 — 3.20% Notes due 2025 250,000 250,000 5.00% Notes due 2026 650,000 650,000 3.25% Notes due 2030 — 500,000 6.40% Notes due 2037 250,000 250,000 4.20% Notes due 2042 250,000 250,000 5.15% Notes due 2043 550,000 550,000 4.20% Notes due 2045 250,000 250,000 4.25% Notes due 2046 500,000 500,000 4.20% Notes due 2047 500,000 500,000 4.85% Notes due 2049 500,000 500,000 3.95% Notes due 2050 500,000 500,000 Face value of long-term debt 4,750,000 4,948,000 Unamortized debt issuance costs (1) (35,263) (37,407) Net unamortized debt discount (1) (8,662) (10,282) Long-term debt, net $ 4,706,075 $ 4,900,311 (1) Debt issuance costs, note discounts and premiums and realized gains and losses of historical fair value hedges are being amortized or accreted to the applicable notes over the respective lives of those notes.

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Operating Leases	The following tables provide information about our third-party and Seabrook operating leases (dollars in thousands): Three Months Ended September 30, 2019 Three Months Ended September 30, 2020 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 6,206 $ 6,267 $ 12,473 $ 6,474 $ 7,175 $ 13,649 Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2020 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 17,631 $ 19,417 $ 37,048 $ 18,173 $ 21,553 $ 39,726 December 31, 2019 September 30, 2020 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Current lease liability $ 15,136 $ 11,085 $ 26,221 $ 15,721 $ 11,456 $ 27,177 Long-term lease liability $ 81,508 $ 62,515 $ 144,023 $ 67,323 $ 54,441 $ 121,764 Right-of-use asset $ 98,268 $ 73,600 $ 171,868 $ 86,185 $ 65,897 $ 152,082

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2020
Retirement Benefits [Abstract]
Schedule of Consolidated Net Periodic Benefit Costs	Net periodic benefit expense for the three and nine months ended September 30, 2019 and 2020 was as follows (in thousands): Three Months Ended Three Months Ended September 30, 2019 September 30, 2020 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 6,260 $ 48 $ 6,898 $ 64 Interest cost 3,026 126 2,738 121 Expected return on plan assets (2,354) — (2,829) — Amortization of prior service credit (46) — (46) — Amortization of actuarial loss 1,352 60 1,346 127 Settlement cost 439 — — — Net periodic benefit cost $ 8,677 $ 234 $ 8,107 $ 312 Nine Months Ended Nine Months Ended September 30, 2019 September 30, 2020 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 19,145 $ 145 $ 20,836 $ 193 Interest cost 9,136 380 8,251 360 Expected return on plan assets (7,045) — (8,524) — Amortization of prior service credit (136) — (136) — Amortization of actuarial loss 4,137 248 4,080 382 Settlement cost 2,499 — 969 — Settlement gain on disposition of assets — — (1,342) — Net periodic benefit cost $ 27,736 $ 773 $ 24,134 $ 935
Schedule of Amounts Recognized in Other Comprehensive Loss	The changes in accumulated other comprehensive loss (“AOCL”) related to employee benefit plan assets and benefit obligations for the three and nine months ended September 30, 2019 and 2020 were as follows (in thousands): Three Months Ended Three Months Ended September 30, 2019 September 30, 2020 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (93,876) $ (6,105) $ (98,610) $ (9,269) Recognition of prior service credit amortization in income (46) — (46) — Recognition of actuarial loss amortization in income 1,352 60 1,346 127 Recognition of settlement cost in income 439 — — — Ending balance $ (92,131) $ (6,045) $ (97,310) $ (9,142) Nine Months Ended Nine Months Ended September 30, 2019 September 30, 2020 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (88,602) $ (5,409) $ (104,739) $ (8,378) Net actuarial gain (loss) (10,029) (884) 813 (1,146) Curtailment gain — — 1,703 — Recognition of prior service credit amortization in income (136) — (136) — Recognition of actuarial loss amortization in income 4,137 248 4,080 382 Recognition of settlement cost in income 2,499 — 969 — Ending balance $ (92,131) $ (6,045) $ (97,310) $ (9,142)

Long-Term Incentive Plan (Table

Long-Term Incentive Plan (Tables)	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Equity-Based Incentive Compensation Expense	Equity-based incentive compensation expense for the three and nine months ended September 30, 2019 and 2020, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2020 2019 2020 Performance-based awards $ 5,162 $ (1,121) $ 18,123 $ (1,247) Time-based awards 1,611 2,290 4,454 6,827 Total $ 6,773 $ 1,169 $ 22,577 $ 5,580

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of NYMEX Contracts And Butane Price Swap Purchase Agreements	Our open futures contracts at September 30, 2020 were as follows: Type of Contract/Accounting Methodology Product Represented by the Contract and Associated Barrels Maturity Dates Futures - Economic Hedges 3.1 million barrels of refined products and crude oil Between October 2020 and November 2022 Futures - Economic Hedges 0.6 million barrels of gas liquids Between October and December 2020
Derivatives and Offset Amounts	A schedule of the derivative amounts we have offset and the deposit amounts we could offset under a master netting arrangement are provided below as of December 31, 2019 and September 30, 2020 (in thousands): 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 12/31/2019 $ (11,033) $ 811 $ (10,222) $ 27,415 $ 17,193 As of 9/30/2020 $ (4,386) $ 2,740 $ (1,646) $ 14,031 $ 12,385 (1) Amount represents the maximum loss we would incur if all of our counterparties failed to perform on their derivative contracts.
Derivatives and Hedging-Cash Flow Hedges	The changes in derivative activity included in AOCL for the three and nine months ended September 30, 2019 and 2020 were as follows (in thousands): Three Months Ended Nine Months Ended September 30, September 30, Derivative Losses Included in AOCL 2019 2020 2019 2020 Beginning balance $ (36,287) $ (57,748) $ (26,480) $ (48,960) Net loss on cash flow hedges (14,181) — (25,216) (10,444) Reclassification of net loss on cash flow hedges to income 699 896 1,927 2,552 Ending balance $ (49,769) $ (56,852) $ (49,769) $ (56,852) The following is a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2019 and 2020 of derivatives that were designated as cash flow hedges (in thousands): 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 Three Months Ended September 30, 2019 $ (14,181) Interest expense $ (699) Three Months Ended September 30, 2020 $ — Interest expense $ (896) Nine Months Ended September 30, 2019 $ (25,216) Interest expense $ (1,927) Nine Months Ended September 30, 2020 $ (10,444) Interest expense $ (2,552)
Derivatives and Hedging-Overall-Subsequent Measurement	The following table provides a summary of the effect on our consolidated statements of income for the three and nine months ended September 30, 2019 and 2020 of derivatives that were not designated as hedging instruments (in thousands): Amount of Gain (Loss) Recognized on Derivatives Three Months Ended Nine Months Ended Location of Gain (Loss) September 30, September 30, Derivative Instrument 2019 2020 2019 2020 Futures contracts Product sales revenue $ 17,626 $ (7,734) $ (41,504) $ 89,280 Futures contracts Cost of product sales (5,581) 1,815 (9,456) (2,529) Basis derivative agreement Other operating income (expense) (3,910) (3,155) (8,869) (2,654) Total $ 8,135 $ (9,074) $ (59,829) $ 84,097
Derivatives and Hedging-Designated	The following tables provide a summary of the fair value of derivatives , which are presented on a net basis in our consolidated balance sheets, that were not designated as hedging instruments as of December 31, 2019 and September 30, 2020 (in thousands): December 31, 2019 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 811 Commodity derivatives contracts, net $ 11,033 Basis derivative agreement Other current assets — Other current liabilities 8,457 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 8,847 Total $ 811 Total $ 28,337 September 30, 2020 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 1,095 Commodity derivatives contracts, net $ 3,983 Futures contracts Other noncurrent assets 1,645 Other noncurrent assets 403 Basis derivative agreement Other current assets — Other current liabilities 9,280 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 2,994 Total $ 2,740 Total $ 16,660

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables summarize the carrying amounts, fair values and fair value measurements recorded or disclosed as of December 31, 2019 and September 30, 2020 based on the three levels established by ASC 820, Fair Value Measurements and Disclosures (in thousands): December 31, 2019 Assets (Liabilities) Fair Value Measurements using: Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (10,222) $ (10,222) $ (10,222) $ — $ — Basis derivative agreement $ (17,304) $ (17,304) $ — $ (17,304) Long-term receivables $ 20,782 $ 20,782 $ — $ — $ 20,782 Guarantees and contractual obligations $ (408) $ (408) $ — $ — $ (408) Debt $ (4,706,075) $ (5,192,685) $ — $ (5,192,685) $ — September 30, 2020 Assets (Liabilities) Fair Value Measurements using: Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (1,646) $ (1,646) $ (1,646) $ — $ — Basis derivative agreement $ (12,274) $ (12,274) $ — $ (12,274) $ — Long-term receivables $ 21,850 $ 21,850 $ — $ — $ 21,850 Guarantees and contractual obligations $ (11,239) $ (11,239) $ — $ — $ (11,239) Debt $ (4,900,311) $ (4,872,340) $ — $ (4,872,340) $ —

Partners' Capital and Distrib_2

Partners' Capital and Distributions (Tables)	9 Months Ended
	Sep. 30, 2020
Partners' Capital Notes [Abstract]
Schedule of Capital Units	The following table details the changes in the number of our common units outstanding from December 31, 2019 through September 30, 2020: Common units outstanding on December 31, 2019 228,403,428 Units repurchased during 2020 (4,987,128) January 2020–Settlement of employee LTIP awards 275,093 During 2020–Other (a) 9,550 Common units outstanding on September 30, 2020 223,700,943 (a) Common units issued to settle the equity-based retainers paid to independent directors of our general partner.
Schedule of Distributions	Distributions we paid during 2019 and 2020 were as follows (in thousands, except per unit amounts): Payment Date Per Unit Cash Total Cash Distribution 02/14/2019 $ 0.9975 $ 227,832 05/15/2019 1.0050 229,545 08/14/2019 1.0125 231,258 Through 09/30/2019 3.0150 688,635 11/14/2019 1.0200 232,971 Total $ 4.0350 $ 921,606 02/14/2020 $ 1.0275 $ 234,774 05/15/2020 1.0275 231,245 08/14/2020 1.0275 231,245 Through 09/30/2020 3.0825 697,264 11/13/2020 (a) 1.0275 229,853 Total $ 4.1100 $ 927,117

Organization, Description of _3

Organization, Description of Business and Basis of Presentation (Narrative) (Details) $ in Thousands, bbl in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2020Terminal	Sep. 30, 2020USD ($)bblTerminalmi	Sep. 30, 2019USD ($)
Organization and Description of Business [Line Items]
Number Of Marine Terminals Sold	3	3
Number Of Marine Terminals Combined With Refined Product Segment	2
Number Of Marine Terminals Combined With Crude Oil Segment	1
Proceeds from sale and disposition of assets | $		$ 334,583	$ 65,574
Refined Products Segment [Member]
Organization and Description of Business [Line Items]
Pipeline Length | mi		9,800
Number of Pipeline Terminals		54
Number of Independent Terminals		25
Number of Marine Terminals		2
Number Of Marine Terminals, Owned Through Joint Venture		1
Crude Oil Pipeline and Terminals Segment [Member]
Organization and Description of Business [Line Items]
Pipeline Length | mi		2,200
Storage Capacity | bbl		37
Contracted Storage | bbl		25
Pipeline, Length - Wholly Owned | mi		1,000
Storage Capacity - Wholly Owned | bbl		30
Contracted Storage - Wholly Owned | bbl		22
Marine Terminals [Member]
Organization and Description of Business [Line Items]
Proceeds from sale and disposition of assets | $		$ 251,800
Asset Impairment Charges | $		$ 6,200

Segment Disclosures (Schedule O

Segment Disclosures (Schedule Of Business Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Revenues	$ 598,264	$ 656,596	$ 1,841,478	$ 1,987,230
Operating expenses	161,982	169,387	457,597	484,341
Cost of product sales	96,119	108,757	395,864	430,727
Other operating (income) expense	2,863	379	(539)	(1,538)
Earnings of non-controlled entities	(39,135)	(50,189)	(116,484)	(122,229)
Operating margin	376,435	428,262	1,105,040	1,195,929
Depreciation, amortization and impairment	71,822	56,627	193,896	181,028
G&A expense	38,016	51,156	117,092	149,534
Operating profit	266,597	320,479	794,052	865,367
Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	436,640	490,839	1,381,264	1,493,338
Operating expenses	118,579	127,328	327,866	362,870
Cost of product sales	86,356	100,416	365,314	411,012
Other operating (income) expense	(193)	(3,249)	(2,223)	(9,648)
Earnings of non-controlled entities	(7,134)	(4,142)	(25,946)	(145)
Operating margin	239,032	270,486	716,253	729,249
Depreciation, amortization and impairment	41,620	39,660	128,708	128,724
G&A expense	27,487	36,806	84,802	107,179
Operating profit	169,925	194,020	502,743	493,346
Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	163,554	167,313	465,307	497,727
Operating expenses	46,956	44,961	139,645	129,431
Cost of product sales	9,763	8,341	30,550	19,715
Other operating (income) expense	3,056	3,628	1,684	8,110
Earnings of non-controlled entities	(32,001)	(46,047)	(90,538)	(122,084)
Operating margin	135,780	156,430	383,966	462,555
Depreciation, amortization and impairment	28,579	15,621	60,367	48,179
G&A expense	10,529	14,350	32,290	42,355
Operating profit	96,672	126,459	291,309	372,021
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(1,930)	(1,556)	(5,093)	(3,835)
Operating expenses	(3,553)	(2,902)	(9,914)	(7,960)
Cost of product sales	0	0	0	0
Other operating (income) expense	0	0	0	0
Earnings of non-controlled entities	0	0	0	0
Operating margin	1,623	1,346	4,821	4,125
Depreciation, amortization and impairment	1,623	1,346	4,821	4,125
G&A expense	0	0	0	0
Operating profit	0	0	0	0
Service [Member]
Segment Reporting Information [Line Items]
Revenues	473,531	506,432	1,343,741	1,473,629
Service [Member] | Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	320,809	352,611	914,887	1,009,812
Service [Member] | Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	154,652	155,377	433,947	467,652
Service [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(1,930)	(1,556)	(5,093)	(3,835)
Product [Member]
Segment Reporting Information [Line Items]
Revenues	119,445	144,807	481,842	497,791
Product [Member] | Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	114,252	136,464	461,701	478,441
Product [Member] | Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	5,193	8,343	20,141	19,350
Product [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Product and Service, Other [Member]
Segment Reporting Information [Line Items]
Revenues	5,288	5,357	15,895	15,810
Product and Service, Other [Member] | Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	1,579	1,764	4,676	5,085
Product and Service, Other [Member] | Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	3,709	3,593	11,219	10,725
Product and Service, Other [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0

Revenue from Contract with Cu_3

Revenue from Contract with Customers (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Deferred Revenue, Revenue Recognized	$ 9.3	$ 89.3

Revenue from Contract with Cu_4

Revenue from Contract with Customers (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 598,264	$ 656,596	$ 1,841,478	$ 1,987,230
Lease revenue	(24,456)	(25,658)	(74,489)	(74,707)
(Gains) losses from futures contracts included in product sales revenue	7,734	(17,625)	(89,280)	41,504
Affiliate management fee revenue	(5,288)	(5,357)	(15,895)	(15,810)
Total revenue from contracts with customers under ASC 606	576,254	607,956	1,661,814	1,938,217
Service [Member]
Disaggregation of Revenue [Line Items]
Revenue	473,531	506,432	1,343,741	1,473,629
Product [Member]
Disaggregation of Revenue [Line Items]
Revenue	119,445	144,807	481,842	497,791
Product and Service, Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,288	5,357	15,895	15,810
Operating Segments [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	436,640	490,839	1,381,264	1,493,338
Lease revenue	(5,315)	(6,302)	(17,247)	(20,756)
(Gains) losses from futures contracts included in product sales revenue	6,850	(17,061)	(89,763)	39,761
Affiliate management fee revenue	(1,579)	(1,764)	(4,676)	(5,085)
Total revenue from contracts with customers under ASC 606	436,596	465,712	1,269,578	1,507,258
Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	163,554	167,313	465,307	497,727
Lease revenue	(19,141)	(19,356)	(57,242)	(53,951)
(Gains) losses from futures contracts included in product sales revenue	884	(564)	483	1,743
Affiliate management fee revenue	(3,709)	(3,593)	(11,219)	(10,725)
Total revenue from contracts with customers under ASC 606	141,588	143,800	397,329	434,794
Operating Segments [Member] | Service [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	320,809	352,611	914,887	1,009,812
Operating Segments [Member] | Service [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	154,652	155,377	433,947	467,652
Operating Segments [Member] | Product [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	114,252	136,464	461,701	478,441
Operating Segments [Member] | Product [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,193	8,343	20,141	19,350
Operating Segments [Member] | Product and Service, Other [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,579	1,764	4,676	5,085
Operating Segments [Member] | Product and Service, Other [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,709	3,593	11,219	10,725
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	(1,930)	(1,556)	(5,093)	(3,835)
Lease revenue	0	0	0	0
(Gains) losses from futures contracts included in product sales revenue	0	0	0	0
Affiliate management fee revenue	0	0	0	0
Total revenue from contracts with customers under ASC 606	(1,930)	(1,556)	(5,093)	(3,835)
Intersegment Eliminations [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Revenue	(1,930)	(1,556)	(5,093)	(3,835)
Intersegment Eliminations [Member] | Product [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Intersegment Eliminations [Member] | Product and Service, Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Transferred over Time [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Revenue	473,531	506,432	1,343,741	1,473,629
Transferred over Time [Member] | Transportation [Member]
Disaggregation of Revenue [Line Items]
Revenue	282,350	303,603	777,605	875,416
Transferred over Time [Member] | Terminalling [Member]
Disaggregation of Revenue [Line Items]
Revenue	46,878	51,604	132,618	152,114
Transferred over Time [Member] | Storage [Member]
Disaggregation of Revenue [Line Items]
Revenue	80,312	81,914	244,943	247,617
Transferred over Time [Member] | Ancillary Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	39,535	43,653	114,086	123,775
Transferred over Time [Member] | Lease Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	24,456	25,658	74,489	74,707
Transferred over Time [Member] | Operating Segments [Member] | Service [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	320,809	352,611	914,887	1,009,812
Transferred over Time [Member] | Operating Segments [Member] | Service [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	154,652	155,377	433,947	467,652
Transferred over Time [Member] | Operating Segments [Member] | Transportation [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	192,194	208,073	533,451	584,662
Transferred over Time [Member] | Operating Segments [Member] | Transportation [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	90,156	95,530	244,154	290,754
Transferred over Time [Member] | Operating Segments [Member] | Terminalling [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	41,227	48,428	117,916	138,968
Transferred over Time [Member] | Operating Segments [Member] | Terminalling [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,651	3,176	14,702	13,146
Transferred over Time [Member] | Operating Segments [Member] | Storage [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	49,366	53,433	152,933	162,139
Transferred over Time [Member] | Operating Segments [Member] | Storage [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	32,876	30,037	97,103	89,313
Transferred over Time [Member] | Operating Segments [Member] | Ancillary Services [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	32,707	36,375	93,340	103,287
Transferred over Time [Member] | Operating Segments [Member] | Ancillary Services [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,828	7,278	20,746	20,488
Transferred over Time [Member] | Operating Segments [Member] | Lease Revenue [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,315	6,302	17,247	20,756
Transferred over Time [Member] | Operating Segments [Member] | Lease Revenue [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	19,141	19,356	57,242	53,951
Transferred over Time [Member] | Intersegment Eliminations [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Revenue	(1,930)	(1,556)	(5,093)	(3,835)
Transferred over Time [Member] | Intersegment Eliminations [Member] | Transportation [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Transferred over Time [Member] | Intersegment Eliminations [Member] | Terminalling [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Transferred over Time [Member] | Intersegment Eliminations [Member] | Storage [Member]
Disaggregation of Revenue [Line Items]
Revenue	(1,930)	(1,556)	(5,093)	(3,835)
Transferred over Time [Member] | Intersegment Eliminations [Member] | Ancillary Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Transferred over Time [Member] | Intersegment Eliminations [Member] | Lease Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Transferred at Point in Time [Member] | Product [Member]
Disaggregation of Revenue [Line Items]
Revenue	119,445	144,807	481,842	497,791
Transferred at Point in Time [Member] | Operating Segments [Member] | Product [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	114,252	136,464	461,701	478,441
Transferred at Point in Time [Member] | Operating Segments [Member] | Product [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,193	8,343	20,141	19,350
Transferred at Point in Time [Member] | Intersegment Eliminations [Member] | Product [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0	$ 0	$ 0

Revenue from Contract with Cu_5

Revenue from Contract with Customers (Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Billed Contracts Receivable	$ 107,317	$ 124,701
Contract with Customer, Asset, after Allowance for Credit Loss	13,834	8,071
Contract with Customer, Liability	$ 94,865	$ 111,670

Revenue from Contract with Cu_6

Revenue from Contract with Customers (Performance Obligations) (Details) $ in Thousands	Sep. 30, 2020USD ($)
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 3,414,095
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months
Revenue, Remaining Performance Obligation, Amount	$ 677,070
Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	2,137,259
Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	407,914
Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	1,276,836
Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 269,156
Minimum [Member] | Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Minimum [Member] | Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Maximum [Member] | Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	18 years
Maximum [Member] | Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	11 years

Revenue from Contract with Cu_7

Revenue from Contract with Customers (Performance Obligations in Next 12 Months) (Details) $ in Thousands	Sep. 30, 2020USD ($)
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 3,414,095
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 677,070
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months
Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 2,137,259
Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	407,914
Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	1,276,836
Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 269,156
Minimum [Member] | Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Minimum [Member] | Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Maximum [Member] | Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	18 years
Maximum [Member] | Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	11 years

Investments in Non-Controlled_3

Investments in Non-Controlled Entities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Proceeds from Sale of Productive Assets			$ 334,583	$ 65,574
Gain (Loss) on Disposition of Other Assets	$ 0	$ 2,532	12,887	28,966
Revenues	598,264	656,596	1,841,478	1,987,230
Operating	161,982	169,387	457,597	484,341
Other operating income (expense)	(2,863)	(379)	539	1,538
Trade accounts receivable	109,051		109,051			$ 125,440
Other accounts receivable	27,735		27,735			23,887
Change in Equity Method Investments [Roll Forward]
Investments, Beginning Balance			1,240,551
Additional investment			73,678
Sale of ownership interest in Saddlehorn			(66,989)
Proportionate share of earnings			117,848
Amortization of excess investment and capitalized interest			(1,364)
Earnings of non-controlled entities	39,135	50,189	116,484	122,229
Distributions from operations of non-controlled entities			152,645	138,140
Investments, Ending Balance	1,211,079		1,211,079
Service [Member]
Schedule of Equity Method Investments [Line Items]
Revenues	473,531	506,432	1,343,741	1,473,629
Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Related Party Transaction, Other Revenues from Transactions with Related Party	$ 700	1,200	$ 2,900	3,800
BridgeTex [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	30.00%		30.00%
BridgeTex [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable	$ 382		$ 382			392
Other accounts receivable	441		441			26
Other Accounts Payable	225		225
BridgeTex [Member] | Equity Method Investee [Member] | Service [Member]
Schedule of Equity Method Investments [Line Items]
Revenues	$ 9,323	10,737	$ 32,748	31,063
Double Eagle Pipeline Llc [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50.00%		50.00%
Double Eagle Pipeline Llc [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable	$ 286		$ 286			445
Double Eagle Pipeline Llc [Member] | Equity Method Investee [Member] | Service [Member]
Schedule of Equity Method Investments [Line Items]
Revenues	$ 995	1,582	$ 4,016	4,813
HoustonLink Pipeline Company LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50.00%		50.00%
HoustonLink Pipeline Company LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable						60
MVP Terminalling, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50.00%		50.00%
MVP Terminalling, LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Other operating income (expense)	$ 0	289	$ 0	289
Other accounts receivable	$ 460		$ 460			418
Powder Springs Logistics, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50.00%		50.00%
Powder Springs Logistics, LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable						161
Long-term receivables	$ 8,970		$ 8,970			6,006
Saddlehorn Pipeline Company [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	30.00%		30.00%		30.00%
Equity Method Investment Sold Percentage					10.00%
Saddlehorn Pipeline Company [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Other accounts receivable	$ 142		$ 142			126
Saddlehorn Pipeline Company [Member] | Equity Method Investee [Member] | Service [Member]
Schedule of Equity Method Investments [Line Items]
Revenues	$ 580	566	$ 1,711	1,669
Seabrook Logistics, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50.00%		50.00%
Seabrook Logistics, LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Operating	$ 7,175	6,267	$ 21,553	19,417
Other operating income (expense)	0	$ 0	1,410	$ 0
Trade accounts receivable	497		497			941
Other Accounts Payable	$ 4,267		$ 4,267			$ 1,349
Texas Frontera Llc [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment	50.00%		50.00%
Investment in Saddlehorn JV [Member] | Saddlehorn Pipeline Company [Member]
Schedule of Equity Method Investments [Line Items]
Proceeds from Sale of Productive Assets			$ 79,900
Gain (Loss) on Disposition of Other Assets			$ (12,900)

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Refined products	$ 60,515	$ 96,128
Liquefied petroleum gases	30,155	29,982
Transmix	20,821	39,546
Crude oil	12,872	12,714
Additives	4,670	6,029
Total inventory	$ 129,033	$ 184,399

Debt (Consolidated Debt) (Detai

Debt (Consolidated Debt) (Details) - USD ($)	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 4,948,000,000		$ 4,750,000,000
Unamortized debt issuance costs	(37,407,000)		(35,263,000)
Net unamortized premium (discount)	(10,282,000)		(8,662,000)
Long-term debt, net	$ 4,900,311,000		4,706,075,000
4.25% Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Debt Instrument, Face Amount	$ 0		550,000,000
3.20% Notes Due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.20%
Debt Instrument, Face Amount	$ 250,000,000		250,000,000
5.00% Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Debt Instrument, Face Amount	$ 650,000,000		650,000,000
3.25% Notes Due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.25%	3.25%
Debt Instrument, Face Amount	$ 500,000,000	$ 500,000,000	0
6.40% Notes Due 2037 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.40%
Debt Instrument, Face Amount	$ 250,000,000		250,000,000
4.20% Notes Due 2042 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Debt Instrument, Face Amount	$ 250,000,000		250,000,000
5.15% Notes Due 2043 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.15%
Debt Instrument, Face Amount	$ 550,000,000		550,000,000
4.20% Notes Due 2045 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Debt Instrument, Face Amount	$ 250,000,000		250,000,000
4.25% Notes Due 2046 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Debt Instrument, Face Amount	$ 500,000,000		500,000,000
4.20% Notes Due 2047 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Debt Instrument, Face Amount	$ 500,000,000		500,000,000
4.85% Notes Due 2049 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.85%
Debt Instrument, Face Amount	$ 500,000,000		500,000,000
3.95% Notes Due 2050 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Debt Instrument, Face Amount	$ 500,000,000		500,000,000
Commercial Paper [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 248,000,000		$ 0

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 4,948,000,000			$ 4,750,000,000
Borrowings under long-term notes	499,400,000	$ 996,405,000
Gain (Loss) on Extinguishment of Debt	(12,893,000)	$ (8,270,000)
Commercial Paper [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	248,000,000			0
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000,000,000
Debt, Weighted Average Interest Rate	0.60%
Commercial Paper [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	397 days
3.25% Notes Due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 500,000,000		$ 500,000,000	0
Debt Instrument, Interest Rate, Stated Percentage	3.25%		3.25%
Debt Instrument, Notes At Price, Percentage Of Par	99.88%
Borrowings under long-term notes	$ 495,200,000
4.25% Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 0			550,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Extinguishment of Debt, Amount	$ 550,000,000
Gain (Loss) on Extinguishment of Debt	(12,900,000)
Amortization of Debt Discount (Premium)	(700,000)
Senior Notes [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000,000,000
Unused commitment fee	0.125%
Long term debt	$ 0			0
Obligation for letters of credit	$ 3,500,000			$ 3,500,000
Senior Notes [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Unused commitment fee	0.075%
Senior Notes [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Unused commitment fee	0.20%
London Interbank Offered Rate (LIBOR) [Member] | Senior Notes [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.875%
London Interbank Offered Rate (LIBOR) [Member] | Senior Notes [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%

Leases Operating Lease, Other D

Leases Operating Lease, Other Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Related Party Transaction [Line Items]
Total lease expense	$ 13,649	$ 12,473	$ 39,726	$ 37,048
Current lease liability	27,177		27,177		$ 26,221
Long-term lease liability	121,764		121,764		144,023
Right-of-use asset	152,082		152,082		171,868
N/A [Member]
Related Party Transaction [Line Items]
Total lease expense	6,474	6,206	18,173	17,631
Current lease liability	15,721		15,721		15,136
Long-term lease liability	67,323		67,323		81,508
Right-of-use asset	86,185		86,185		98,268
Seabrook Logistics, LLC [Member] | Equity Method Investee [Member]
Related Party Transaction [Line Items]
Total lease expense	7,175	$ 6,267	21,553	$ 19,417
Current lease liability	11,456		11,456		11,085
Long-term lease liability	54,441		54,441		62,515
Right-of-use asset	$ 65,897		$ 65,897		$ 73,600

Employee Benefit Plans (Narrati

Employee Benefit Plans (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020USD ($)pension_plan	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)pension_plan	Sep. 30, 2019USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Cost | $	$ 2.8	$ 2.8	$ 9.7	$ 9.3
Number Of Sponsored Pension Plans | pension_plan	2		2
Number Of Sponsored Pension Plans, Non-Union Employees | pension_plan	1		1
Number Of Sponsored Pension Plans, Union Employees | pension_plan	1		1
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | $	$ 29.3		$ 29.3
Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | $	$ 0.9		$ 0.9

Schedule Of Consolidated Net Pe

Schedule Of Consolidated Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Pension Plan [Member]
Components of net periodic benefit costs:
Service cost	$ 6,898	$ 6,260	$ 20,836	$ 19,145
Interest cost	2,738	3,026	8,251	9,136
Expected return on plan assets	(2,829)	(2,354)	(8,524)	(7,045)
Amortization of prior service credit	(46)	(46)	(136)	(136)
Amortization of actuarial loss	1,346	1,352	4,080	4,137
Settlement cost	0	439	969	2,499
Settlement gain on disposition of assets			(1,342)	0
Net periodic benefit cost	8,107	8,677	24,134	27,736
Other Postretirement Benefits Plan [Member]
Components of net periodic benefit costs:
Service cost	64	48	193	145
Interest cost	121	126	360	380
Expected return on plan assets	0	0	0	0
Amortization of prior service credit	0	0	0	0
Amortization of actuarial loss	127	60	382	248
Settlement cost	0	0	0	0
Settlement gain on disposition of assets			0	0
Net periodic benefit cost	$ 312	$ 234	$ 935	$ 773

Employee Benefit Plans Schedule

Employee Benefit Plans Schedule of Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Changes in AOCL [Roll Forward]
Beginning balance	$ 2,454,738	$ 2,637,779	$ 2,715,028	$ 2,643,434
Net actuarial loss	0	0	(333)	(10,913)
Curtailment gain	0	0	1,703	0
Recognition of prior service credit amortization in income	(46)	(46)	(136)	(136)
Recognition of actuarial loss amortization in income	1,473	1,412	4,462	4,385
Recognition of settlement cost in income	0	439	969	2,499
Ending balance	2,388,444	2,674,456	2,388,444	2,674,456
Pension Plan [Member]
Changes in AOCL [Roll Forward]
Net actuarial loss			813	(10,029)
Curtailment gain			1,703	0
Recognition of prior service credit amortization in income	(46)	(46)	(136)	(136)
Recognition of actuarial loss amortization in income	1,346	1,352	4,080	4,137
Recognition of settlement cost in income	0	439	969	2,499
Other Postretirement Benefits Plan [Member]
Changes in AOCL [Roll Forward]
Net actuarial loss			(1,146)	(884)
Curtailment gain			0	0
Recognition of prior service credit amortization in income	0	0	0	0
Recognition of actuarial loss amortization in income	127	60	382	248
Recognition of settlement cost in income	0	0	0	0
Accumulated Other Comprehensive Loss | Pension Plan [Member]
Changes in AOCL [Roll Forward]
Beginning balance	(98,610)	(93,876)	(104,739)	(88,602)
Ending balance	(97,310)	(92,131)	(97,310)	(92,131)
Accumulated Other Comprehensive Loss | Other Postretirement Benefits Plan [Member]
Changes in AOCL [Roll Forward]
Beginning balance	(9,269)	(6,105)	(8,378)	(5,409)
Ending balance	$ (9,142)	$ (6,045)	$ (9,142)	$ (6,045)

Long-Term Incentive Plan (Narra

Long-Term Incentive Plan (Narrative) (Details) - shares	Jan. 31, 2020	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Limited partners' capital account, units authorized for issuance (in shares)		11,900,000
Limited partner unitholders, units remaining available (in shares)		1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	378,144
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years

Long-Term Incentive Plan (Equit

Long-Term Incentive Plan (Equity-Based Incentive Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	$ 1,169	$ 6,773	$ 5,580	$ 22,577
Performance Based Awards [Member]
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	(1,121)	5,162	(1,247)	18,123
Time-Based Awards [Member]
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	$ 2,290	$ 1,611	$ 6,827	$ 4,454

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details)	3 Months Ended	9 Months Ended
	Jun. 30, 2020USD ($)	Sep. 30, 2020USD ($)bbl	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Derivative [Line Items]
Debt Instrument, Face Amount		$ 4,948,000,000		$ 4,750,000,000
Payments for (Proceeds from) Hedge, Financing Activities		10,444,000	$ 33,342,000
Good Faith and Margin Deposits with Broker-Dealers		14,031,000		27,415,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months		$ (3,300,000)
Energy Related Derivative [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | bbl		30,000
Derivative Liability		$ 12,300,000		17,300,000
3.25% Notes Due 2030 [Member]
Derivative [Line Items]
Debt Instrument, Face Amount	$ 500,000,000	$ 500,000,000		$ 0
Debt Instrument, Interest Rate, Stated Percentage	3.25%	3.25%
3.25% Notes Due 2030 [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 100,000,000
Payments for (Proceeds from) Hedge, Financing Activities	$ 10,400,000

Derivative Financial Instrume_4

Derivative Financial Instruments (Schedule Of NYMEX Contracts And Butane Price Swap Purchase Agreements) (Details) bbl in Millions	Sep. 30, 2020bbl
Economic Hedges [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	3.1
Economic Hedges Futures [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0.6

Derivative Financial Instrume_5

Derivative Financial Instruments (Schedule of Derivative Offset Amounts) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Commodity derivatives deposits	$ 14,031	$ 27,415
Exchange Traded [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	(4,386)	(11,033)
Derivative Asset, Fair Value, Gross Asset	2,740	811
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	(1,646)	(10,222)
Commodity derivatives deposits	14,031	27,415
Amount After Offset	$ 12,385	$ 17,193

Derivative Financial Instrume_6

Derivative Financial Instruments (Derivative Gains Included In Accumulated Other Comprehensive Loss (AOCL) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Gains Included in AOCI [Roll Forward]
Beginning balance	$ 2,454,738	$ 2,637,779	$ 2,715,028	$ 2,643,434
Net gain (loss) on cash flow hedges	0	(14,181)	(10,444)	(25,216)
Reclassification of net loss (gain) on cash flow hedges to income	896	699	2,552	1,927
Ending balance	2,388,444	2,674,456	2,388,444	2,674,456
Derivative Losses Included in AOCL
Derivative Gains Included in AOCI [Roll Forward]
Beginning balance	(57,748)	(36,287)	(48,960)	(26,480)
Ending balance	$ (56,852)	$ (49,769)	$ (56,852)	$ (49,769)

Derivative Financial Instrume_7

Derivative Financial Instruments (Derivatives And Hedging-Cash Flow Hedges) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on cash flow hedges	$ 0	$ (14,181)	$ (10,444)	$ (25,216)
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	(896)	(699)	(2,552)	(1,927)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on cash flow hedges	0	(14,181)	(10,444)	(25,216)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	$ (896)	$ (699)	$ (2,552)	$ (1,927)

Derivative Financial Instrume_8

Derivative Financial Instruments (Derivatives And Hedging-Overall-Subsequent Measurement) (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (9,074)	$ 8,135	$ 84,097	$ (59,829)
Commodity Contract [Member] | Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(7,734)	17,626	89,280	(41,504)
Commodity Contract [Member] | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	1,815	(5,581)	(2,529)	(9,456)
Energy Related Derivative [Member] | Other Operating Income (Expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (3,155)	$ (3,910)	$ (2,654)	$ (8,869)

Derivative Financial Instrume_9

Derivative Financial Instruments (Derivatives and Hedging - Designated) (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 2,740	$ 811
Derivative Liability, Fair Value, Gross Liability	16,660	28,337
Commodity Contract [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,095	811
Commodity Contract [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	3,983	11,033
Commodity Contract [Member] | Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,645
Commodity Contract [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	403
Energy Related Derivative [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Energy Related Derivative [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	9,280	8,457
Energy Related Derivative [Member] | Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Energy Related Derivative [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 2,994	$ 8,847

Fair Value Fair Value (Narrativ

Fair Value Fair Value (Narrative) (Details)	3 Months Ended	9 Months Ended
	Mar. 31, 2020Terminal	Sep. 30, 2020bblTerminal
Derivative [Line Items]
Number Of Marine Terminals Sold | Terminal	3	3
Energy Related Derivative [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | bbl		30,000

Fair Value (Schedule Of Carryin

Fair Value (Schedule Of Carrying Amounts And Fair Values Of Financial Assets/Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	$ (12,300)	$ (17,300)
Fair Value, Inputs, Level 1 [Member] | Commodity Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(1,646)	(10,222)
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	(4,872,340)	(5,192,685)
Fair Value, Inputs, Level 2 [Member] | Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(12,274)	(17,304)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	21,850	20,782
Guarantees, Fair Value Disclosure	(11,239)	(408)
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	21,850	20,782
Guarantees, Fair Value Disclosure	(11,239)	(408)
Debt	(4,900,311)	(4,706,075)
Reported Value Measurement [Member] | Commodity Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(1,646)	(10,222)
Reported Value Measurement [Member] | Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(12,274)	(17,304)
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	21,850	20,782
Guarantees, Fair Value Disclosure	(11,239)	(408)
Debt	(4,872,340)	(5,192,685)
Estimate of Fair Value Measurement [Member] | Commodity Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(1,646)	(10,222)
Estimate of Fair Value Measurement [Member] | Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	$ (12,274)	$ (17,304)

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020USD ($)	Mar. 31, 2020Terminal	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)Terminal	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Oct. 04, 2017facility
Loss Contingencies [Line Items]
Liabilities recognized for estimated environmental costs	$ 11.9			$ 11.9		$ 14.9
Environmental expenses	0.1		$ 0.8	1.3	$ 4.2
Receivables from insurance carriers related to environmental matters	1.8			$ 1.8		2.9
Number Of Marine Terminals Sold | Terminal		3		3
Accounts Receivable [Member]
Loss Contingencies [Line Items]
Receivables from insurance carriers related to environmental matters	1			$ 1		1.8
Other Noncurrent Assets [Member]
Loss Contingencies [Line Items]
Receivables from insurance carriers related to environmental matters	0.8			0.8		$ 1.1
Performance Guarantee [Member] | Other Current Liabilities [Member]
Loss Contingencies [Line Items]
Guarantees, Fair Value Disclosure	0.6			0.6
Performance Guarantee [Member] | Other Noncurrent Liabilities [Member]
Loss Contingencies [Line Items]
Guarantees, Fair Value Disclosure	$ 10.2			$ 10.2
Powder Springs Logistics, LLC [Member]
Loss Contingencies [Line Items]
Interest in equity method investment	50.00%			50.00%
Powder Springs Logistics, LLC [Member] | Guarantee of Indebtedness of Others [Member] | Equity Method Investee [Member]
Loss Contingencies [Line Items]
Guarantees, Fair Value Disclosure	$ 0.4			$ 0.4
Interest in equity method investment	50.00%			50.00%
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 25			$ 25
Pending Litigation [Member] | Unfavorable Regulatory Action [Member]
Loss Contingencies [Line Items]
Loss Contingency, Alleged Patent Infringement, Number Of Facilities | facility							9

Related Party Transactions (Det

Related Party Transactions (Details) - Director [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Methvin Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Other Revenues from Transactions with Related Party	$ 8.6	$ 7.1	$ 24.3	$ 21.4
Accounts Receivable, Related Parties, Current	3.7		3.7		$ 3.8
Methvin Company 2 [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Other Revenues from Transactions with Related Party	$ 0.1		$ 0.3

Partners' Capital and Distrib_3

Partners' Capital and Distributions (Narrative) (Details)	Sep. 30, 2020USD ($)
Partners' Capital [Abstract]
Stock Repurchase Program, Authorized Amount	$ 750,000,000

Partners' Capital and Distrib_4

Partners' Capital and Distributions (Schedule of Capital Units) (Details)	9 Months Ended
	Sep. 30, 2020shares
Increase (Decrease) in Partners' Capital [Roll Forward]
Limited partner units outstanding, beginning balance (in shares)	228,403,428
Stock Repurchased During Period, Shares	(4,987,128)
Limited partner units outstanding, ending balance (in shares)	223,700,943
Management [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
During 2020–Other (in shares)	275,093
Director [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
During 2020–Other (in shares)	9,550

Partners' Capital and Distrib_5

Partners' Capital and Distributions (Schedule Of Distributions) (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 13, 2020	Aug. 14, 2020	May 15, 2020	Feb. 14, 2020	Nov. 14, 2019	Aug. 14, 2019	May 15, 2019	Feb. 14, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Distribution Made to Limited Partner [Line Items]
Cash distribution per unit (in dollars per share)		$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0200	$ 1.0125	$ 1.0050	$ 0.9975	$ 3.0825	$ 3.0150		$ 4.0350
Total Cash Distribution to Limited Partners		$ 231,245	$ 231,245	$ 234,774	$ 232,971	$ 231,258	$ 229,545	$ 227,832	$ 697,264	$ 688,635		$ 921,606
Scenario, Forecast
Distribution Made to Limited Partner [Line Items]
Cash distribution per unit (in dollars per share)	$ 1.0275										$ 4.1100
Total Cash Distribution to Limited Partners	$ 229,853										$ 927,117

Subsequent Events (Details)

Subsequent Events (Details) - $ / shares

Dec. 31, 2020

Nov. 13, 2020

Sep. 30, 2020

Aug. 14, 2020

May 15, 2020

Feb. 14, 2020

Dec. 31, 2019

Nov. 14, 2019

Sep. 30, 2019

Aug. 14, 2019

May 15, 2019

Feb. 14, 2019

Subsequent Event [Line Items]

Cash distribution per unit (in dollars per share)

$ 3.0825

$ 1.0275

$ 1.0275

$ 1.0275

$ 4.0350

$ 1.0200

$ 3.0150

$ 1.0125

$ 1.0050

$ 0.9975

Scenario, Forecast

Subsequent Event [Line Items]

Cash distribution per unit (in dollars per share)

$ 4.1100

$ 1.0275

Subsequent Event | Scenario, Forecast

Subsequent Event [Line Items]

Cash distribution per unit (in dollars per share)

$ 1.0275