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Pay vs Performance Disclosure
12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Pay vs Performance Disclosure [Table]      
Pay vs Performance [Table Text Block]
Pay Versus Performance
Our CEO is the principal executive officer (“PEO”). The following table sets forth information concerning the compensation of our PEO(s) and other NEOs for each of the fiscal years (“FY”) ending December 31, 2020, 2021 and 2022 and our financial performance for each such fiscal year:
 
                           
Value of Initial Fixed
$100 Investment
Based on:
       
Year
 
Summary
Compensation
Table
Total for PEO
(Michael N.
Mears) ($)
 
Summary
Compensation
Table
Total for PEO
(Aaron L.
Milford) ($)
 
Compensation
Actually
Paid
to PEO
(Michael N.
Mears) ($)
(1)
 
Compensation
Actually
Paid
to PEO
(Aaron L.
Milford) ($)
(1)
 
Average
Summary
Compensation
Table Total
for Non-PEO
NEOs ($)
 
Average
Compensation
Actually
Paid
to Non-PEO
NEOs ($)
(1,2)
 
TUR ($)
 
Peer Group
Total
Shareholder
Return
(“TSR”) ($)
(2)
 
Net
Income
(in millions,
$)
 
DCF per
common
unit
oustanding
(3)
                     
2022
    $ 8,789,909       $ 5,394,056       $ 11,380,842       $ 6,445,592       $ 2,716,343       $ 3,283,962       $ 104       $ 127       $ 1,036       $ 5.46  
                     
2021
    $ 8,842,499                 $ 15,176,762                 $ 2,665,291       $ 4,189,342       $ 89       $ 97       $ 982       $ 5.14  
                     
2020
    $ 7,617,029                 $ (1,496,209 )               $ 2,242,220       $ (154,645 )     $ 74       $ 69       $ 817       $ 4.66  
 
(1)
 
Amounts represent compensation actually paid to our PEO(s) and the average compensation actually paid to our remaining NEOs for the relevant fiscal year, as determined under SEC rules (and described below), which includes the individuals indicated in the table below for each fiscal year:
 
Year
  
PEO
  
Non-PEO
NEOs
     
2022    Michael N. Mears and
Aaron L. Milford
   Jeff L. Holman, Melanie A. Little, Michael J. Aaronson and Douglas J. May
     
2021    Michael N. Mears    Aaron L. Milford, Jeff L. Holman, Melanie A. Little and Douglas J. May
     
2020    Michael N. Mears    Aaron L. Milford, Jeff L. Holman, Douglas J. May, Lisa J. Korner and Jeff R. Selvidge
Compensation of Directors and Executive Officers
 
The table below provides the adjustments to the Summary Compensation Table total compensation made to arrive at the compensation actually paid for the PEO and the average for
Non-PEO
NEOs:

   
2020
         
2021
         
2022
 
   
PEO
   
Average for
Non-PEO

NEOs
         
PEO
   
Average for
Non-PEO
NEOs
         
PEO
(Michael N.
Mears)
   
PEO
(Aaron L.
Milford)
   
Average for
Non-PEO
NEOs
 
                   
Deduction for Amounts Reported under the “Unit Awards” Column in the Summary Compensation Table
 
$
(5,238,784
 
$
(1,123,500
 
 
 
 
 
$
(5,366,648
 
$
(1,282,481
 
 
 
 
 
$
(5,897,596
 
$
(3,038,267
 
$
(1,476,666
                   
Deduction for Change in the Actuarial Present Values reported under the “Change in Pension Value” Column of the Summary Compensation Table
 
$
(210,133
 
$
(202,237
 
 
 
 
 
$
(104,782
 
$
(50,102
 
 
 
 
 
$
(146,911
 
$
 
 
$
 
                   
Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End 
(a)
 
$
3,885,346
 
 
$
756,565
 
 
 
 
 
 
$
9,823,484
 
 
$
2,347,556
 
 
 
 
 
 
$
6,465,233
 
 
$
3,316,670
 
 
$
1,597,117
 
                   
Increase/deduction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End 
(b)
 
$
(4,164,740
 
$
(1,034,962
 
 
 
 
 
$
693,042
 
 
$
158,065
 
 
 
 
 
 
$
1,572,709
 
 
$
543,435
 
 
$
297,900
 
                   
Increase/deduction for Awards Granted during Prior FY that Vested during Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date 
(c)
 
$
(3,442,837
 
$
(844,172
 
 
 
 
 
$
1,223,676
 
 
$
296,411
 
 
 
 
 
 
$
502,637
 
 
$
168,762
 
 
$
91,000
 
                   
Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on Incremental Fair Value of Options/SARs Modified during Applicable FY
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase for Service Cost for Pension Plans 
(d)
 
$
57,910
 
 
$
51,441
 
 
 
 
 
 
$
65,491
 
 
$
54,602
 
 
 
 
 
 
$
94,861
 
 
$
60,936
 
 
$
58,267
 
                   
Total Adjustments
 
$
(9,113,238
 
$
(2,396,865
 
 
 
 
 
$
6,334,263
 
 
$
1,524,051
 
 
 
 
 
 
$
2,590,933
 
 
$
1,051,536
 
 
$
567,618
 
 
(a)
Represents the market value of the units based on the closing price per unit of our common units plus the distribution equivalents earned through December 31 of the applicable fiscal year. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption based on Magellan’s actual DCF per unit at fiscal year end:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
  Payout Assumption  
2020
  
January 2020
  
$42.44
  
$3.0825
  
Target
2021
  
February 2021
  
$46.44
  
$3.0925
  
Stretch
2022
  
February 2022
  
$50.21
  
$3.1225
  
Target
Compensation of Directors and Executive Officers
 
(b)
For the fiscal year ending December 31, 2020, this represents the change in market value of the 2019 LTIP award unvested units based on the closing price per unit of our common units and TUR adjustment metric for performance-based units plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2019 and December 31, 2020:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance
Unit Payout
Assumption
  
  TUR Adjustment  
Assumption
           
2019
   February 2019    $62.87    $3.0375    Stretch    —%
           
2019
   May 2019    $62.87    $2.0325    Stretch    —%
           
2020
   February 2019    $42.44    $7.1475    Threshold    —%
           
2020
   May 2019    $42.44    $6.1425    Threshold    —%
For the fiscal year ending December 31, 2021, this represents the change in market value of the 2020 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. Note, the TUR adjustment metric was removed beginning with the 2020 LTIP award. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2020 and December 31, 2021:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance  
Unit Payout
Assumption
         
2020
   January 2020    $42.44    $3.0825    Target
         
2021
   January 2020    $46.44    $7.2025    Target
For the fiscal year ending December 31, 2022, this represents the change in market value of the 2021 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2021 and December 31, 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance  
Unit Payout
Assumption
         
2021
   February 2021    $46.44    $3.0925    Stretch
         
2022
   February 2021    $50.21    $7.2525    Stretch
 
(c)
For the fiscal year ending December 31, 2020, this represents the change in market value of the 2018 LTIP award vested units based on the closing price per unit of our common units and TUR adjustment metric plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2019 and December 31, 2020:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
Payout
  
  TUR Adjustment  
           
2019
   February 2018    $62.87    $  6.9075    Stretch
(projected)
   8.3%
(projected)
           
2020
   February 2018    $42.44    $11.0175    68.22%    13.33%
For the fiscal year ending December 31, 2021, this represents the change in market value of the 2019 LTIP award vested units based on the closing price per unit of our common units and TUR adjustment metric plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2020 and December 31, 2021:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
Payout
  
  TUR Adjustment  
           
2020
   February 2019    $42.44    $  7.1475    Threshold
(projected)
   0%
(projected)
           
2020
   May 2019    $42.44    $  6.1425    Threshold
(projected)
   0%
(projected)
           
2021
   February 2019    $46.44    $11.2675    88.83%    2.86%
           
2021
   May 2019    $46.44    $10.2625    88.83%    2.86%
 
Compensation of Directors and Executive Officers
 
For the fiscal year ending December 31, 2022, this represents the change in market value of the 2020 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. Note, the TUR adjustment metric was removed beginning with the 2020 LTIP award. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2021 and December 31, 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance Unit  
Payout
         
2021
   January 2020    $46.44    $  7.2025    Target
(projected)
         
2022
   January 2020    $50.21    $11.3625    93.37%
 
(d)
For disclosures of all significant assumptions used by the pension plan applicable to active participants, please refer to Note 12—
Employee Benefit Plans
to our consolidated financial statements in our Annual Report on Form
10-K
for the year ended December 31, 2020, 2021 and 2022. The table below provides a limited summary of the assumptions used to determine benefit cost as of December 31, 2020, 2021 and 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Discount Rate (Final Average
Earnings Participants)
  
  Weighted Average Salary Increase  
     
2020
   3.08%    4.72%
     
2021
   2.29%    4.62%
     
2022
   2.67%    6.72%
 
(2)
 
For the relevant fiscal year, represents the cumulative TSR of the Alerian MLP Infrastructure Index (“AMZI”), consistent with the “Unitholder Return Performance” section of this proxy statement.
 
(3)
 
Magellan’s most important financial performance measure is actual DCF per unit. As DCF is not a generally accepted accounting principle (“GAAP”), a reconciliation of DCF to net income, which is the nearest comparable GAAP financial measure, is shown in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Distributable Cash Flow in our Annual Report on Form
10-K
for the years ended December 31, 2020, 2021 and 2022.
   
Company Selected Measure Name DCF percommonunitoustanding    
Named Executive Officers, Footnote [Text Block]
(1)
 
Amounts represent compensation actually paid to our PEO(s) and the average compensation actually paid to our remaining NEOs for the relevant fiscal year, as determined under SEC rules (and described below), which includes the individuals indicated in the table below for each fiscal year:
 
Year
  
PEO
  
Non-PEO
NEOs
     
2022    Michael N. Mears and
Aaron L. Milford
   Jeff L. Holman, Melanie A. Little, Michael J. Aaronson and Douglas J. May
     
2021    Michael N. Mears    Aaron L. Milford, Jeff L. Holman, Melanie A. Little and Douglas J. May
     
2020    Michael N. Mears    Aaron L. Milford, Jeff L. Holman, Douglas J. May, Lisa J. Korner and Jeff R. Selvidge
   
Adjustment To PEO Compensation, Footnote [Text Block]
The table below provides the adjustments to the Summary Compensation Table total compensation made to arrive at the compensation actually paid for the PEO and the average for
Non-PEO
NEOs:

   
2020
         
2021
         
2022
 
   
PEO
   
Average for
Non-PEO

NEOs
         
PEO
   
Average for
Non-PEO
NEOs
         
PEO
(Michael N.
Mears)
   
PEO
(Aaron L.
Milford)
   
Average for
Non-PEO
NEOs
 
                   
Deduction for Amounts Reported under the “Unit Awards” Column in the Summary Compensation Table
 
$
(5,238,784
 
$
(1,123,500
 
 
 
 
 
$
(5,366,648
 
$
(1,282,481
 
 
 
 
 
$
(5,897,596
 
$
(3,038,267
 
$
(1,476,666
                   
Deduction for Change in the Actuarial Present Values reported under the “Change in Pension Value” Column of the Summary Compensation Table
 
$
(210,133
 
$
(202,237
 
 
 
 
 
$
(104,782
 
$
(50,102
 
 
 
 
 
$
(146,911
 
$
 
 
$
 
                   
Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End 
(a)
 
$
3,885,346
 
 
$
756,565
 
 
 
 
 
 
$
9,823,484
 
 
$
2,347,556
 
 
 
 
 
 
$
6,465,233
 
 
$
3,316,670
 
 
$
1,597,117
 
                   
Increase/deduction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End 
(b)
 
$
(4,164,740
 
$
(1,034,962
 
 
 
 
 
$
693,042
 
 
$
158,065
 
 
 
 
 
 
$
1,572,709
 
 
$
543,435
 
 
$
297,900
 
                   
Increase/deduction for Awards Granted during Prior FY that Vested during Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date 
(c)
 
$
(3,442,837
 
$
(844,172
 
 
 
 
 
$
1,223,676
 
 
$
296,411
 
 
 
 
 
 
$
502,637
 
 
$
168,762
 
 
$
91,000
 
                   
Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on Incremental Fair Value of Options/SARs Modified during Applicable FY
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase for Service Cost for Pension Plans 
(d)
 
$
57,910
 
 
$
51,441
 
 
 
 
 
 
$
65,491
 
 
$
54,602
 
 
 
 
 
 
$
94,861
 
 
$
60,936
 
 
$
58,267
 
                   
Total Adjustments
 
$
(9,113,238
 
$
(2,396,865
 
 
 
 
 
$
6,334,263
 
 
$
1,524,051
 
 
 
 
 
 
$
2,590,933
 
 
$
1,051,536
 
 
$
567,618
 
 
(a)
Represents the market value of the units based on the closing price per unit of our common units plus the distribution equivalents earned through December 31 of the applicable fiscal year. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption based on Magellan’s actual DCF per unit at fiscal year end:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
  Payout Assumption  
2020
  
January 2020
  
$42.44
  
$3.0825
  
Target
2021
  
February 2021
  
$46.44
  
$3.0925
  
Stretch
2022
  
February 2022
  
$50.21
  
$3.1225
  
Target
Compensation of Directors and Executive Officers
 
(b)
For the fiscal year ending December 31, 2020, this represents the change in market value of the 2019 LTIP award unvested units based on the closing price per unit of our common units and TUR adjustment metric for performance-based units plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2019 and December 31, 2020:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance
Unit Payout
Assumption
  
  TUR Adjustment  
Assumption
           
2019
   February 2019    $62.87    $3.0375    Stretch    —%
           
2019
   May 2019    $62.87    $2.0325    Stretch    —%
           
2020
   February 2019    $42.44    $7.1475    Threshold    —%
           
2020
   May 2019    $42.44    $6.1425    Threshold    —%
For the fiscal year ending December 31, 2021, this represents the change in market value of the 2020 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. Note, the TUR adjustment metric was removed beginning with the 2020 LTIP award. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2020 and December 31, 2021:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance  
Unit Payout
Assumption
         
2020
   January 2020    $42.44    $3.0825    Target
         
2021
   January 2020    $46.44    $7.2025    Target
For the fiscal year ending December 31, 2022, this represents the change in market value of the 2021 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2021 and December 31, 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance  
Unit Payout
Assumption
         
2021
   February 2021    $46.44    $3.0925    Stretch
         
2022
   February 2021    $50.21    $7.2525    Stretch
 
(c)
For the fiscal year ending December 31, 2020, this represents the change in market value of the 2018 LTIP award vested units based on the closing price per unit of our common units and TUR adjustment metric plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2019 and December 31, 2020:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
Payout
  
  TUR Adjustment  
           
2019
   February 2018    $62.87    $  6.9075    Stretch
(projected)
   8.3%
(projected)
           
2020
   February 2018    $42.44    $11.0175    68.22%    13.33%
For the fiscal year ending December 31, 2021, this represents the change in market value of the 2019 LTIP award vested units based on the closing price per unit of our common units and TUR adjustment metric plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2020 and December 31, 2021:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
Payout
  
  TUR Adjustment  
           
2020
   February 2019    $42.44    $  7.1475    Threshold
(projected)
   0%
(projected)
           
2020
   May 2019    $42.44    $  6.1425    Threshold
(projected)
   0%
(projected)
           
2021
   February 2019    $46.44    $11.2675    88.83%    2.86%
           
2021
   May 2019    $46.44    $10.2625    88.83%    2.86%
 
Compensation of Directors and Executive Officers
 
For the fiscal year ending December 31, 2022, this represents the change in market value of the 2020 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. Note, the TUR adjustment metric was removed beginning with the 2020 LTIP award. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2021 and December 31, 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance Unit  
Payout
         
2021
   January 2020    $46.44    $  7.2025    Target
(projected)
         
2022
   January 2020    $50.21    $11.3625    93.37%
 
(d)
For disclosures of all significant assumptions used by the pension plan applicable to active participants, please refer to Note 12—
Employee Benefit Plans
to our consolidated financial statements in our Annual Report on Form
10-K
for the year ended December 31, 2020, 2021 and 2022. The table below provides a limited summary of the assumptions used to determine benefit cost as of December 31, 2020, 2021 and 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Discount Rate (Final Average
Earnings Participants)
  
  Weighted Average Salary Increase  
     
2020
   3.08%    4.72%
     
2021
   2.29%    4.62%
     
2022
   2.67%    6.72%
   
Non-PEO NEO Average Total Compensation Amount $ 2,716,343 $ 2,665,291 $ 2,242,220
Non-PEO NEO Average Compensation Actually Paid Amount $ 3,283,962 4,189,342 (154,645)
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
The table below provides the adjustments to the Summary Compensation Table total compensation made to arrive at the compensation actually paid for the PEO and the average for
Non-PEO
NEOs:

   
2020
         
2021
         
2022
 
   
PEO
   
Average for
Non-PEO

NEOs
         
PEO
   
Average for
Non-PEO
NEOs
         
PEO
(Michael N.
Mears)
   
PEO
(Aaron L.
Milford)
   
Average for
Non-PEO
NEOs
 
                   
Deduction for Amounts Reported under the “Unit Awards” Column in the Summary Compensation Table
 
$
(5,238,784
 
$
(1,123,500
 
 
 
 
 
$
(5,366,648
 
$
(1,282,481
 
 
 
 
 
$
(5,897,596
 
$
(3,038,267
 
$
(1,476,666
                   
Deduction for Change in the Actuarial Present Values reported under the “Change in Pension Value” Column of the Summary Compensation Table
 
$
(210,133
 
$
(202,237
 
 
 
 
 
$
(104,782
 
$
(50,102
 
 
 
 
 
$
(146,911
 
$
 
 
$
 
                   
Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End 
(a)
 
$
3,885,346
 
 
$
756,565
 
 
 
 
 
 
$
9,823,484
 
 
$
2,347,556
 
 
 
 
 
 
$
6,465,233
 
 
$
3,316,670
 
 
$
1,597,117
 
                   
Increase/deduction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End 
(b)
 
$
(4,164,740
 
$
(1,034,962
 
 
 
 
 
$
693,042
 
 
$
158,065
 
 
 
 
 
 
$
1,572,709
 
 
$
543,435
 
 
$
297,900
 
                   
Increase/deduction for Awards Granted during Prior FY that Vested during Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date 
(c)
 
$
(3,442,837
 
$
(844,172
 
 
 
 
 
$
1,223,676
 
 
$
296,411
 
 
 
 
 
 
$
502,637
 
 
$
168,762
 
 
$
91,000
 
                   
Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase based on Incremental Fair Value of Options/SARs Modified during Applicable FY
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
 
 
 
 
$
 
 
$
 
 
$
 
                   
Increase for Service Cost for Pension Plans 
(d)
 
$
57,910
 
 
$
51,441
 
 
 
 
 
 
$
65,491
 
 
$
54,602
 
 
 
 
 
 
$
94,861
 
 
$
60,936
 
 
$
58,267
 
                   
Total Adjustments
 
$
(9,113,238
 
$
(2,396,865
 
 
 
 
 
$
6,334,263
 
 
$
1,524,051
 
 
 
 
 
 
$
2,590,933
 
 
$
1,051,536
 
 
$
567,618
 
 
(a)
Represents the market value of the units based on the closing price per unit of our common units plus the distribution equivalents earned through December 31 of the applicable fiscal year. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption based on Magellan’s actual DCF per unit at fiscal year end:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
  Payout Assumption  
2020
  
January 2020
  
$42.44
  
$3.0825
  
Target
2021
  
February 2021
  
$46.44
  
$3.0925
  
Stretch
2022
  
February 2022
  
$50.21
  
$3.1225
  
Target
Compensation of Directors and Executive Officers
 
(b)
For the fiscal year ending December 31, 2020, this represents the change in market value of the 2019 LTIP award unvested units based on the closing price per unit of our common units and TUR adjustment metric for performance-based units plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2019 and December 31, 2020:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance
Unit Payout
Assumption
  
  TUR Adjustment  
Assumption
           
2019
   February 2019    $62.87    $3.0375    Stretch    —%
           
2019
   May 2019    $62.87    $2.0325    Stretch    —%
           
2020
   February 2019    $42.44    $7.1475    Threshold    —%
           
2020
   May 2019    $42.44    $6.1425    Threshold    —%
For the fiscal year ending December 31, 2021, this represents the change in market value of the 2020 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. Note, the TUR adjustment metric was removed beginning with the 2020 LTIP award. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2020 and December 31, 2021:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance  
Unit Payout
Assumption
         
2020
   January 2020    $42.44    $3.0825    Target
         
2021
   January 2020    $46.44    $7.2025    Target
For the fiscal year ending December 31, 2022, this represents the change in market value of the 2021 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2021 and December 31, 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance  
Unit Payout
Assumption
         
2021
   February 2021    $46.44    $3.0925    Stretch
         
2022
   February 2021    $50.21    $7.2525    Stretch
 
(c)
For the fiscal year ending December 31, 2020, this represents the change in market value of the 2018 LTIP award vested units based on the closing price per unit of our common units and TUR adjustment metric plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2019 and December 31, 2020:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
Payout
  
  TUR Adjustment  
           
2019
   February 2018    $62.87    $  6.9075    Stretch
(projected)
   8.3%
(projected)
           
2020
   February 2018    $42.44    $11.0175    68.22%    13.33%
For the fiscal year ending December 31, 2021, this represents the change in market value of the 2019 LTIP award vested units based on the closing price per unit of our common units and TUR adjustment metric plus the distribution equivalents earned. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout and TUR adjustment assumptions as of December 31, 2020 and December 31, 2021:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
Performance Unit
Payout
  
  TUR Adjustment  
           
2020
   February 2019    $42.44    $  7.1475    Threshold
(projected)
   0%
(projected)
           
2020
   May 2019    $42.44    $  6.1425    Threshold
(projected)
   0%
(projected)
           
2021
   February 2019    $46.44    $11.2675    88.83%    2.86%
           
2021
   May 2019    $46.44    $10.2625    88.83%    2.86%
 
Compensation of Directors and Executive Officers
 
For the fiscal year ending December 31, 2022, this represents the change in market value of the 2020 LTIP award unvested units based on the closing price per unit of our common units plus the distribution equivalents earned. Note, the TUR adjustment metric was removed beginning with the 2020 LTIP award. The table below provides the closing price per unit, distribution equivalents earned for the outstanding equity award and the performance unit payout assumption as of December 31, 2021 and December 31, 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Award Granted
  
Closing Price
per Unit
  
Distribution
Equivalents
  
  Performance Unit  
Payout
         
2021
   January 2020    $46.44    $  7.2025    Target
(projected)
         
2022
   January 2020    $50.21    $11.3625    93.37%
 
(d)
For disclosures of all significant assumptions used by the pension plan applicable to active participants, please refer to Note 12—
Employee Benefit Plans
to our consolidated financial statements in our Annual Report on Form
10-K
for the year ended December 31, 2020, 2021 and 2022. The table below provides a limited summary of the assumptions used to determine benefit cost as of December 31, 2020, 2021 and 2022:
 
As of
Fiscal Year
Ending
December 31,
  
Discount Rate (Final Average
Earnings Participants)
  
  Weighted Average Salary Increase  
     
2020
   3.08%    4.72%
     
2021
   2.29%    4.62%
     
2022
   2.67%    6.72%
   
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
The following graph compares the compensation actually paid to our PEO(s), the average of the compensation actually paid to our remaining NEOs and the TUR performance of our common units with the TSR performance of the AMZI. The TUR and TSR amounts in the graph assume that $100 was invested beginning on December 31, 2019 and that all distributions or dividends were reinvested on a quarterly basis. The graph below shows a connection between compensation actually paid and total unitholder return for Magellan and the peer group.
 

 
 
 
  
12/31/2020
   
12/31/2021
    
12/31/2022
 
       
Compensation Actually Paid to PEO (Michael N. Mears) ($)
   $ (1,496,209   $ 15,176,762      $ 11,380,842  
       
Compensation Actually Paid to PEO (Aaron L. Milford) ($)
                    $ 6,445,592  
       
Average Compensation Actually Paid to
Non-PEO
NEOs ($)
   $ (154,645   $ 4,189,342      $ 3,283,962  
       
Total Unitholder Return ($)
   $ 74     $ 89      $ 104  
       
Peer Group Total Shareholder Return ($)
   $ 69     $ 97      $ 127  
   
Compensation Actually Paid vs. Net Income [Text Block]
The following graph compares the compensation actually paid to our PEO(s) and the average of the compensation actually paid to our remaining NEOs with net income.
 

 
 
 
  
12/31/2020
   
12/31/2021
    
12/31/2022
 
       
Compensation Actually Paid to PEO (Michael N. Mears) ($)
   $ (1,496,209   $ 15,176,762      $ 11,380,842  
       
Compensation Actually Paid to PEO (Aaron L. Milford) ($)
                    $ 6,445,592  
       
Average Compensation Actually Paid to
Non-PEO
NEOs ($)
   $ (154,645   $ 4,189,342      $ 3,283,962  
       
Net Income (in millions, $)
   $ 817     $ 982      $ 1,036  
   
Compensation Actually Paid vs. Company Selected Measure [Text Block]
The following graph compares the compensation actually paid to our PEO(s) and the average of the compensation actually paid to our remaining NEOs with DCF per unit. The graph below shows a connection between compensation actually paid and DCF/unit, the most important financial metric for connecting Magellan financial performance and compensation.
 

 
 
 
  
12/31/2020
   
12/31/2021
    
12/31/2022
 
       
Compensation Actually Paid to PEO (Michael N. Mears) ($)
   $ (1,496,209   $ 15,176,762      $ 11,380,842  
       
Compensation Actually Paid to PEO (Aaron L. Milford) ($)
                    $ 6,445,592  
       
Average Compensation Actually Paid to
Non-PEO
NEOs ($)
   $ (154,645   $ 4,189,342      $ 3,283,962  
       
Net Income (in millions, $)
   $ 4.66     $ 5.14      $ 5.46  
   
Tabular List [Table Text Block]
 
Important Financial Performance Measures
 
DCF per unit
 
DCF
 
Adjusted EBITDA
   
Total Shareholder Return Amount $ 104 89 74
Peer Group Total Shareholder Return Amount 127 97 69
Net Income (Loss) $ 1,036,000,000 $ 982,000,000 $ 817,000,000
Company Selected Measure Amount 5.46 5.14 4.66
PEO Name   Michael N. Mears Michael N. Mears
Measure [Axis]: 1      
Pay vs Performance Disclosure [Table]      
Measure Name DCF per unit    
Non-GAAP Measure Description [Text Block]
(3)
 
Magellan’s most important financial performance measure is actual DCF per unit. As DCF is not a generally accepted accounting principle (“GAAP”), a reconciliation of DCF to net income, which is the nearest comparable GAAP financial measure, is shown in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Distributable Cash Flow in our Annual Report on Form
10-K
for the years ended December 31, 2020, 2021 and 2022.
   
Measure [Axis]: 2      
Pay vs Performance Disclosure [Table]      
Measure Name DCF    
Measure [Axis]: 3      
Pay vs Performance Disclosure [Table]      
Measure Name Adjusted EBITDA    
Michael N. Mears [Member]      
Pay vs Performance Disclosure [Table]      
PEO Total Compensation Amount $ 8,789,909 $ 8,842,499 $ 7,617,029
PEO Actually Paid Compensation Amount $ 11,380,842 15,176,762 (1,496,209)
PEO Name Michael N. Mears    
Aaron L. Milford [Member]      
Pay vs Performance Disclosure [Table]      
PEO Total Compensation Amount $ 5,394,056    
PEO Actually Paid Compensation Amount $ 6,445,592    
PEO Name Aaron L. Milford    
PEO [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   6,334,263 (9,113,238)
PEO [Member] | Deduction for Amounts Reported under the Unit Awards [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   (5,366,648) (5,238,784)
PEO [Member] | Deduction for Change in the Actuarial Present Values reported under the Change in Pension Value [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   (104,782) (210,133)
PEO [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   0 0
PEO [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   9,823,484 3,885,346
PEO [Member] | Increasededuction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   693,042 (4,164,740)
PEO [Member] | Increasededuction for Awards Granted during Prior FY that Vested during Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   1,223,676 (3,442,837)
PEO [Member] | Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   0 0
PEO [Member] | Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   0 0
PEO [Member] | Increase based on Incremental Fair Value of OptionsSARs Modified during Applicable FY [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   0 0
PEO [Member] | Increase for Service Cost for Pension Plans [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount   65,491 57,910
PEO [Member] | Michael N. Mears [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount $ 2,590,933    
PEO [Member] | Michael N. Mears [Member] | Deduction for Amounts Reported under the Unit Awards [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount (5,897,596)    
PEO [Member] | Michael N. Mears [Member] | Deduction for Change in the Actuarial Present Values reported under the Change in Pension Value [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount (146,911)    
PEO [Member] | Michael N. Mears [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Michael N. Mears [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 6,465,233    
PEO [Member] | Michael N. Mears [Member] | Increasededuction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 1,572,709    
PEO [Member] | Michael N. Mears [Member] | Increasededuction for Awards Granted during Prior FY that Vested during Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 502,637    
PEO [Member] | Michael N. Mears [Member] | Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Michael N. Mears [Member] | Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Michael N. Mears [Member] | Increase based on Incremental Fair Value of OptionsSARs Modified during Applicable FY [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Michael N. Mears [Member] | Increase for Service Cost for Pension Plans [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 94,861    
PEO [Member] | Aaron L. Milford [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 1,051,536    
PEO [Member] | Aaron L. Milford [Member] | Deduction for Amounts Reported under the Unit Awards [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount (3,038,267)    
PEO [Member] | Aaron L. Milford [Member] | Deduction for Change in the Actuarial Present Values reported under the Change in Pension Value [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Aaron L. Milford [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Aaron L. Milford [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 3,316,670    
PEO [Member] | Aaron L. Milford [Member] | Increasededuction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 543,435    
PEO [Member] | Aaron L. Milford [Member] | Increasededuction for Awards Granted during Prior FY that Vested during Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 168,762    
PEO [Member] | Aaron L. Milford [Member] | Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Aaron L. Milford [Member] | Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Aaron L. Milford [Member] | Increase based on Incremental Fair Value of OptionsSARs Modified during Applicable FY [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0    
PEO [Member] | Aaron L. Milford [Member] | Increase for Service Cost for Pension Plans [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 60,936    
Non-PEO NEO [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 567,618 1,524,051 (2,396,865)
Non-PEO NEO [Member] | Deduction for Amounts Reported under the Unit Awards [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount (1,476,666) (1,282,481) (1,123,500)
Non-PEO NEO [Member] | Deduction for Change in the Actuarial Present Values reported under the Change in Pension Value [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0 (50,102) (202,237)
Non-PEO NEO [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0 0 0
Non-PEO NEO [Member] | Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 1,597,117 2,347,556 756,565
Non-PEO NEO [Member] | Increasededuction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 297,900 158,065 (1,034,962)
Non-PEO NEO [Member] | Increasededuction for Awards Granted during Prior FY that Vested during Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 91,000 296,411 (844,172)
Non-PEO NEO [Member] | Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0 0 0
Non-PEO NEO [Member] | Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0 0 0
Non-PEO NEO [Member] | Increase based on Incremental Fair Value of OptionsSARs Modified during Applicable FY [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount 0 0 0
Non-PEO NEO [Member] | Increase for Service Cost for Pension Plans [Member]      
Pay vs Performance Disclosure [Table]      
Adjustment to Compensation Amount $ 58,267 $ 54,602 $ 51,441