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Pay vs Performance Disclosure - USD ($)
5 Months Ended 7 Months Ended 12 Months Ended
Dec. 31, 2023
Aug. 14, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Pay vs Performance Disclosure              
Pay vs Performance Disclosure, Table    
Pay versus Performance Disclosure
The following table provides a summary of compensation actually paid, as defined by the SEC (CAP), to the principal executive officer (PEO), the average CAP for the other non-PEO named executive officers (Other NEOs), total shareholder return (TSR), net income and the Company-selected financial measure (CSM) of operating income for 2024, 2023, 2022, 2021 and 2020.
Year
Summary
Compensation
Table Total for
PEO
V. James Vena
(a)
Compensation
Actually Paid
to PEO
V. James Vena
(a)
Summary
Compensation
Table Total for
PEO
Lance M. Fritz
(a)
Compensation
Actually Paid
to PEO
Lance M. Fritz
(a)
Average
Summary
Compensation
Table Total for
Non-PEO
NEOs
(a)
Average
Compensation
Actually Paid
to Non-PEO
NEOs
(a)
Value of Initial Fixed $100
Investment Based On:
Net
Income
(c)
In Millions
CSM:
Operating
Income
(c)
In Millions
Company
TSR
Peer
Group
TSR
(b)
2024
$17,644,763
$12,782,098
$4,879,690
$3,865,271
$141
$156
$6,747
$9,713
2023
2,017,348
2,017,348
15,552,576
13,105,795
3,639,648
3,680,741
148
154
6,379
9,082
2022
14,326,072
5,546,491
2,690,886
2,533,173
122
128
6,998
9,917
2021
14,523,819
23,246,960
3,188,100
4,326,065
145
155
6,523
9,338
2020
16,632,099
14,075,218
4,297,722
5,491,165
118
117
5,349
7,834
(a)
Mr. Fritz, in his capacity as Chief Executive Officer, served as our principal executive officer (PEO) for 2020, 2021, and 2022, and until August 14, 2023, when Mr. Vena became the CEO. The Other NEOs represent the following individuals for each of the years shown: Ms. Hamann, Ms. Whited, Mr. Rocker, and Mr. Gehringer for 2024, 2023, 2022, and 2021; and Mr. Vena (in his capacity as our then Chief Operating Officer), Ms. Hamann, Ms. Whited and Mr. Rocker for 2020.
(b)
The peer group index is the Dow Jones Transportation Index, which is included in Item 5 of the Company’s Form 10-K for the year ended December 31, 2024.
(c)
Net income and operating income for 2022 reflect a $92 million one-time charge for the labor agreements reached with our labor unions. Net income and operating income for 2020 reflect a $278 million non-cash impairment charge related to our Brazos yard investment.
(d)
CAP is defined by the SEC to include not only actual take-home pay for the reported year, but also (i) the year-end value of equity awards granted during the reported year, and (ii) the change in the value of equity awards that were unvested at the end of the prior year, measured through the date such awards vested or were forfeited, or through the end of the reported fiscal year. To calculate CAP, the following amounts were deducted from and added to the applicable executives’ “total compensation” as reported in the Summary Compensation Table (SCT). No adjustments were made to Mr. Vena’s 2023 total compensation for purposes of calculating his 2023 CAP.
PEO V. James Vena SCT Total to CAP Reconciliation:
Year
Summary
Compensation
Table Total
for PEO
Reported
Value of
Equity Awards
(i)
Equity Award
Adjustments
(ii)
Reported
Change in
the
Actuarial
Present
Value of
Pension
Benefits
(iii)
Pension
Benefit
Adjustments
(iv)
Compensation
Actually
Paid to
PEO
2024
$17,644,763
($12,000,196)
$7,137,531
$12,782,098
2023
2,017,348
2,017,348
PEO Lance M. Fritz SCT Total to CAP Reconciliation:
Year
Summary
Compensation
Table Total
for PEO
Reported
Value of
Equity Awards
(i)
Equity Award
Adjustments
(ii)
Reported
Change in
the
Actuarial
Present
Value of
Pension
Benefits
(iii)
Pension
Benefit
Adjustments
(iv)
Compensation
Actually
Paid
to PEO
2023
$15,552,576
($12,000,274)
$10,562,712
($1,500,939)
$491,720
$13,105,795
2022
14,326,072
(12,000,163)
2,504,547
716,035
5,546,491
2021
14,523,819
(10,500,166)
18,510,398
(47,311)
760,220
23,246,960
2020
16,632,099
(10,500,105)
10,583,878
(3,269,470)
628,816
14,075,218
Average Non-PEO NEOs SCT Total to CAP Reconciliation:
Year
Average
Summary
Compensation
Table Total
for Non-PEO
NEOs
Average
Reported
Value of
Equity Awards
(i)
Equity Award
Adjustments
(ii)
Average
Reported
Change in
the
Actuarial
Present
Value of
Pension
Benefits
(iii)
Pension
Benefit
Adjustments
(iv)
Average
Compensation
Actually Paid
to Non-PEO
NEOs
2024
$4,879,690
($2,812,707)
$1,639,815
($7,237)
$165,710
$3,865,271
2023
3,639,648
(2,025,201)
2,413,150
(682,484)
335,628
3,680,741
2022
2,690,886
(1,812,770)
594,285
1,060,772
2,533,173
2021
3,188,100
(1,475,163)
2,409,395
(367,668)
571,401
4,326,065
2020
4,297,722
(2,087,623)
4,094,333
(1,064,470)
251,203
5,491,165
(i)
The amounts included in this column are the grant date fair value of equity awards as reported in the “Stock Awards” and “Option Awards” columns in the SCT for each applicable year.
(ii)
The equity award adjustments for each applicable year reflect the year-over-year change in the fair value of equity awards as itemized in the tables below
PEO V. James Vena Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End
of Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Total Equity Award
Adjustments
2024
$7,137,531
$7,137,531
2023
PEO Lance M. Fritz Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End of
Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Awards Forfeited
During the Year
Total Equity Award
Adjustments
2023
$11,353,821
$350,903
$3,250,480
($4,392,492)
$10,562,712
2022
8,228,329
(1,183,911)
(4,539,871)
2,504,547
2021
12,578,359
(1,151,373)
7,083,412
18,510,398
2020
11,615,105
4,891
(1,036,118)
10,583,878
Average Non-PEO NEOs Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End of
Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Total Equity Award
Adjustments
2024
$1,672,955
$12,414
($45,554)
$1,639,815
2023
1,916,131
44,065
452,954
2,413,150
2022
1,242,989
(116,387)
(532,317)
594,285
2021
1,767,115
(83,871)
726,151
2,409,395
2020
2,576,000
1,372,918
(1,750)
147,165
4,094,333
(iii)
The amounts included in this column are the change in the present actuarial value of the executives’ accumulated benefit under the Company’s pension plan as reported in “Change in Pension and Nonqualified Deferred Compensation Earnings” column of the SCT for each applicable year.
(iv)
The total pension benefit adjustments for each applicable year include the actuarially determined service cost for services rendered during the applicable year (the “service cost”).
       
Company Selected Measure Name     operating income        
Named Executive Officers, Footnote    
(a)
Mr. Fritz, in his capacity as Chief Executive Officer, served as our principal executive officer (PEO) for 2020, 2021, and 2022, and until August 14, 2023, when Mr. Vena became the CEO. The Other NEOs represent the following individuals for each of the years shown: Ms. Hamann, Ms. Whited, Mr. Rocker, and Mr. Gehringer for 2024, 2023, 2022, and 2021; and Mr. Vena (in his capacity as our then Chief Operating Officer), Ms. Hamann, Ms. Whited and Mr. Rocker for 2020.
       
Peer Group Issuers, Footnote    
(b)
The peer group index is the Dow Jones Transportation Index, which is included in Item 5 of the Company’s Form 10-K for the year ended December 31, 2024.
       
Adjustment To PEO Compensation, Footnote    
(d)
CAP is defined by the SEC to include not only actual take-home pay for the reported year, but also (i) the year-end value of equity awards granted during the reported year, and (ii) the change in the value of equity awards that were unvested at the end of the prior year, measured through the date such awards vested or were forfeited, or through the end of the reported fiscal year. To calculate CAP, the following amounts were deducted from and added to the applicable executives’ “total compensation” as reported in the Summary Compensation Table (SCT). No adjustments were made to Mr. Vena’s 2023 total compensation for purposes of calculating his 2023 CAP.
PEO V. James Vena SCT Total to CAP Reconciliation:
Year
Summary
Compensation
Table Total
for PEO
Reported
Value of
Equity Awards
(i)
Equity Award
Adjustments
(ii)
Reported
Change in
the
Actuarial
Present
Value of
Pension
Benefits
(iii)
Pension
Benefit
Adjustments
(iv)
Compensation
Actually
Paid to
PEO
2024
$17,644,763
($12,000,196)
$7,137,531
$12,782,098
2023
2,017,348
2,017,348
PEO Lance M. Fritz SCT Total to CAP Reconciliation:
Year
Summary
Compensation
Table Total
for PEO
Reported
Value of
Equity Awards
(i)
Equity Award
Adjustments
(ii)
Reported
Change in
the
Actuarial
Present
Value of
Pension
Benefits
(iii)
Pension
Benefit
Adjustments
(iv)
Compensation
Actually
Paid
to PEO
2023
$15,552,576
($12,000,274)
$10,562,712
($1,500,939)
$491,720
$13,105,795
2022
14,326,072
(12,000,163)
2,504,547
716,035
5,546,491
2021
14,523,819
(10,500,166)
18,510,398
(47,311)
760,220
23,246,960
2020
16,632,099
(10,500,105)
10,583,878
(3,269,470)
628,816
14,075,218
(i)
The amounts included in this column are the grant date fair value of equity awards as reported in the “Stock Awards” and “Option Awards” columns in the SCT for each applicable year.
(ii)
The equity award adjustments for each applicable year reflect the year-over-year change in the fair value of equity awards as itemized in the tables below
PEO V. James Vena Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End
of Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Total Equity Award
Adjustments
2024
$7,137,531
$7,137,531
2023
PEO Lance M. Fritz Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End of
Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Awards Forfeited
During the Year
Total Equity Award
Adjustments
2023
$11,353,821
$350,903
$3,250,480
($4,392,492)
$10,562,712
2022
8,228,329
(1,183,911)
(4,539,871)
2,504,547
2021
12,578,359
(1,151,373)
7,083,412
18,510,398
2020
11,615,105
4,891
(1,036,118)
10,583,878
(iii)
The amounts included in this column are the change in the present actuarial value of the executives’ accumulated benefit under the Company’s pension plan as reported in “Change in Pension and Nonqualified Deferred Compensation Earnings” column of the SCT for each applicable year.
(iv)
The total pension benefit adjustments for each applicable year include the actuarially determined service cost for services rendered during the applicable year (the “service cost”).
       
Non-PEO NEO Average Total Compensation Amount     $ 4,879,690 $ 3,639,648 $ 2,690,886 $ 3,188,100 $ 4,297,722
Non-PEO NEO Average Compensation Actually Paid Amount     $ 3,865,271 3,680,741 2,533,173 4,326,065 5,491,165
Adjustment to Non-PEO NEO Compensation Footnote    
(d)
CAP is defined by the SEC to include not only actual take-home pay for the reported year, but also (i) the year-end value of equity awards granted during the reported year, and (ii) the change in the value of equity awards that were unvested at the end of the prior year, measured through the date such awards vested or were forfeited, or through the end of the reported fiscal year. To calculate CAP, the following amounts were deducted from and added to the applicable executives’ “total compensation” as reported in the Summary Compensation Table (SCT). No adjustments were made to Mr. Vena’s 2023 total compensation for purposes of calculating his 2023 CAP.
Average Non-PEO NEOs SCT Total to CAP Reconciliation:
Year
Average
Summary
Compensation
Table Total
for Non-PEO
NEOs
Average
Reported
Value of
Equity Awards
(i)
Equity Award
Adjustments
(ii)
Average
Reported
Change in
the
Actuarial
Present
Value of
Pension
Benefits
(iii)
Pension
Benefit
Adjustments
(iv)
Average
Compensation
Actually Paid
to Non-PEO
NEOs
2024
$4,879,690
($2,812,707)
$1,639,815
($7,237)
$165,710
$3,865,271
2023
3,639,648
(2,025,201)
2,413,150
(682,484)
335,628
3,680,741
2022
2,690,886
(1,812,770)
594,285
1,060,772
2,533,173
2021
3,188,100
(1,475,163)
2,409,395
(367,668)
571,401
4,326,065
2020
4,297,722
(2,087,623)
4,094,333
(1,064,470)
251,203
5,491,165
(i)
The amounts included in this column are the grant date fair value of equity awards as reported in the “Stock Awards” and “Option Awards” columns in the SCT for each applicable year.
(ii)
The equity award adjustments for each applicable year reflect the year-over-year change in the fair value of equity awards as itemized in the tables below
Average Non-PEO NEOs Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End of
Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Total Equity Award
Adjustments
2024
$1,672,955
$12,414
($45,554)
$1,639,815
2023
1,916,131
44,065
452,954
2,413,150
2022
1,242,989
(116,387)
(532,317)
594,285
2021
1,767,115
(83,871)
726,151
2,409,395
2020
2,576,000
1,372,918
(1,750)
147,165
4,094,333
(iii)
The amounts included in this column are the change in the present actuarial value of the executives’ accumulated benefit under the Company’s pension plan as reported in “Change in Pension and Nonqualified Deferred Compensation Earnings” column of the SCT for each applicable year.
(iv)
The total pension benefit adjustments for each applicable year include the actuarially determined service cost for services rendered during the applicable year (the “service cost”).
       
Compensation Actually Paid vs. Total Shareholder Return    
CAP versus TSR
As shown in the chart below, the PEO’s CAP and Other NEOs’ Average CAP amounts are directionally aligned with the Company’s TSR. This is due primarily to the Company’s use of equity incentives, the value of which moves in line with our TSR, in addition to the Company’s financial performance. The Other NEOs’ Average CAP in 2020 also reflects the compensation of a more senior executive who ceased to serve as one of the Other NEOs in 2021. The Other NEO’s Average CAP increased in 2023 and 2024 due primarily to changes in the Company’s stock price and the election of Ms. Whited as the Company’s President. The PEO’s CAP in 2024 reflects Mr. Vena’s first full year of service as the CEO.
       
Compensation Actually Paid vs. Net Income    
CAP versus Net Income
The Company’s net income increased in 2021, 2022 and 2024, and decreased in 2023, while the PEO and Other NEOs’ CAP has varied significantly each year. This is due in large part to the significant emphasis the Company places on equity incentives, the value of which are affected by our TSR. In addition, the Company does not use net income to determine compensation levels or incentive plan payouts.
       
Compensation Actually Paid vs. Company Selected Measure    
CAP versus Operating Income – Company-Selected Measure (CSM)
Operating income and operating ratio (of which operating income is a component) are equally weighted financial measures used in our annual incentive plan, as described in our CD&A. In addition, performance stock units awarded to our NEOs are earned based one-third (1/3) on operating income growth (OIG). The Company’s operating income has steadily increased year-over-year, except for 2023, although its impact on the PEO’s and Other NEO’s CAP has been muted or offset by other performance measures and by changes in the Company’s stock price.
       
Total Shareholder Return Vs Peer Group    
TSR: Company versus Peer Group
The following chart presents the cumulative total shareholder return, assuming reinvestment of dividends, over the 5-year period for the Company (UNP) and the Dow Jones Transportation Index (DJ Trans). As the table demonstrates, the Company’s 5-year cumulative TSR is generally aligned with our peer group index.
       
Tabular List, Table    
Most Important Measures to Determine 2024 CAP
Below lists the most important financial metrics used to link 2024 CAP to Company performance. Operating income, operating ratio and return on invested capital are further described in our CD&A within the sections titled “2024 Annual Incentive Plan” and “Long-Term Equity Incentive Compensation.”
Operating Income
Operating Ratio
Return on Invested Capital
       
Total Shareholder Return Amount     $ 141 148 122 145 118
Peer Group Total Shareholder Return Amount     156 154 128 155 117
Net Income (Loss)     $ 6,747,000,000 $ 6,379,000,000 $ 6,998,000,000 $ 6,523,000,000 $ 5,349,000,000
Company Selected Measure Amount     9,713,000,000 9,082,000,000 9,917,000,000 9,338,000,000 7,834,000,000
PEO Name Mr. Vena Mr. Fritz Mr. Vena   Mr. Fritz Mr. Fritz Mr. Fritz
Equity Awards Adjustments, Footnote    
(ii)
The equity award adjustments for each applicable year reflect the year-over-year change in the fair value of equity awards as itemized in the tables below
PEO V. James Vena Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End
of Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Total Equity Award
Adjustments
2024
$7,137,531
$7,137,531
2023
PEO Lance M. Fritz Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End of
Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Awards Forfeited
During the Year
Total Equity Award
Adjustments
2023
$11,353,821
$350,903
$3,250,480
($4,392,492)
$10,562,712
2022
8,228,329
(1,183,911)
(4,539,871)
2,504,547
2021
12,578,359
(1,151,373)
7,083,412
18,510,398
2020
11,615,105
4,891
(1,036,118)
10,583,878
Average Non-PEO NEOs Equity Award Adjustments Reconciliation:
Year
Fair Value as of Year-End of
Equity Awards Granted during
the Year
Fair Value as of Vest Date of
Equity Awards Granted during
the Year
Increase (Decrease) from Prior
Year-End in Fair Value of
Awards That Vested During the
Year
Year-over-Year Increase
(Decrease) in Fair Value of
Unvested Awards Granted in
Prior Years
Total Equity Award
Adjustments
2024
$1,672,955
$12,414
($45,554)
$1,639,815
2023
1,916,131
44,065
452,954
2,413,150
2022
1,242,989
(116,387)
(532,317)
594,285
2021
1,767,115
(83,871)
726,151
2,409,395
2020
2,576,000
1,372,918
(1,750)
147,165
4,094,333
       
Charges for labor agreements         $ 92,000,000    
Asset Impairment Charges             $ 278,000,000
Measure:: 1              
Pay vs Performance Disclosure              
Name     Operating Income        
Measure:: 2              
Pay vs Performance Disclosure              
Name     Operating Ratio        
Measure:: 3              
Pay vs Performance Disclosure              
Name     Return on Invested Capital        
V. James Vena [Member]              
Pay vs Performance Disclosure              
PEO Total Compensation Amount     $ 17,644,763 $ 2,017,348 0 $ 0 0
PEO Actually Paid Compensation Amount     12,782,098 2,017,348 0 0 0
Lance M. Fritz [Member]              
Pay vs Performance Disclosure              
PEO Total Compensation Amount     0 15,552,576 14,326,072 14,523,819 16,632,099
PEO Actually Paid Compensation Amount     0 13,105,795 5,546,491 23,246,960 14,075,218
PEO | V. James Vena [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0 0      
PEO | V. James Vena [Member] | Aggregate Pension Adjustments Service Cost              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0 0      
PEO | V. James Vena [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (12,000,196) 0      
PEO | V. James Vena [Member] | Equity Awards Adjustments, Excluding Value Reported in Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     7,137,531 0      
PEO | V. James Vena [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     7,137,531 0      
PEO | V. James Vena [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0 0      
PEO | V. James Vena [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0 0      
PEO | V. James Vena [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0 0      
PEO | Lance M. Fritz [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       (1,500,939) 0 (47,311) (3,269,470)
PEO | Lance M. Fritz [Member] | Aggregate Pension Adjustments Service Cost              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       491,720 716,035 760,220 628,816
PEO | Lance M. Fritz [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       (12,000,274) (12,000,163) (10,500,166) (10,500,105)
PEO | Lance M. Fritz [Member] | Equity Awards Adjustments, Excluding Value Reported in Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       10,562,712 2,504,547 18,510,398 10,583,878
PEO | Lance M. Fritz [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       11,353,821 8,228,329 12,578,359 11,615,105
PEO | Lance M. Fritz [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       3,250,480 (4,539,871) 7,083,412 (1,036,118)
PEO | Lance M. Fritz [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       0 0 0 0
PEO | Lance M. Fritz [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       350,903 (1,183,911) (1,151,373) 4,891
PEO | Lance M. Fritz [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount       (4,392,492) 0 0 0
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (7,237) (682,484) 0 (367,668) (1,064,470)
Non-PEO NEO | Aggregate Pension Adjustments Service Cost              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     165,710 335,628 1,060,772 571,401 251,203
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (2,812,707) (2,025,201) (1,812,770) (1,475,163) (2,087,623)
Non-PEO NEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     1,639,815 2,413,150 594,285 2,409,395 4,094,333
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     1,672,955 1,916,131 1,242,989 1,767,115 2,576,000
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (45,554) 452,954 (532,317) 726,151 147,165
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0 0 0 0 1,372,918
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     $ 12,414 $ 44,065 $ (116,387) $ (83,871) $ (1,750)