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Restructuring (Narrative) (Details) - employee | 3 Months Ended
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Jun. 30, 2021 | Dec. 31, 2019 | Sep. 30, 2018 | Dec. 31, 2017
2020 Repositioning |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and related cost, expected number of positions eliminated | 1,200 |  |  |
Restructuring and related cost, number of positions eliminated, period percent | 11.00% |  |  |
2019 Repositioning |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and related cost, expected number of positions eliminated |  | 180 |  |
Restructuring and related cost, number of positions eliminated, period percent |  | 1.00% |  |
2017 Repositioning |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and related cost, expected number of positions eliminated |  |  |  | 300
Restructuring and related cost, number of positions eliminated, period percent |  |  |  | 3.00%
2018 Repositioning Actions |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and related cost, expected number of positions eliminated |  |  | 170 |
Restructuring and related cost, number of positions eliminated, period percent |  |  | 2.00% |

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- Definition The expected number of positions to be eliminated as a result of restructuring activities. + References No definition available. + Details
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- Definition The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s). + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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