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Restructuring and Other (Restructuring and Other) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 21 Months Ended
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | $ 116.9 | $ 75.3 | $ 371.0 | $ 316.5 |
Total restructuring and other and other unusual charges not included in restructuring and other | 116.8 | 73.5 | 370.5 | 314.9 |
Insurance recoveries | 0.1 | 2.8 | 0.7 | 10.7 |
Minimum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring initiative, expected cost remaining | 30.0 |  | 30.0 |  | $ 30.0
Restructuring initiative, expected future cash outlay | 145.0 |  | 145.0 |  | 145.0
Maximum |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring initiative, expected cost remaining | 55.0 |  | 55.0 |  | 55.0
Restructuring initiative, expected future cash outlay | 170.0 |  | 170.0 |  | 170.0
Direct operating expense |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Content charges | 0.0 | 0.0 | 0.0 | 7.2 |
COVID-19 related charges (benefit) included in direct operating expense | (0.1) | (1.8) | (0.5) | (8.8) |
Severance |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | 30.7 | 3.9 | 41.3 | 16.9 |
Severance | Cash |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | 23.9 | 2.4 | 32.9 | 14.8 |
Severance | Accelerated vesting on equity awards |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | 6.8 | 1.5 | 8.4 | 2.1 |
COVID-19 related charges |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | 0.0 | 0.0 | 0.0 | 0.1 |
Transaction and other costs |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | 8.4 | (9.4) | 12.3 | (0.2) |
Transaction and other costs | Media Networks |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Settlement of legal matter |  | 11.0 |  | 11.0 |
Transaction and other costs (benefits), migration benefits |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other |  |  | 3.8 |  |
Content and other impairments |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | 77.8 | 80.8 | 317.4 | 299.7 |
Operating Lease, Impairment Loss |  |  |  | 5.8 |
Content and other impairments | Media Networks |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and other | $ 77.8 | $ 80.8 | $ 317.4 | $ 293.8 | $ 696.7

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