v3.21.2

Restructuring and Integration - Additional Information (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Restructuring Cost And Reserve [Line Items] |  |  |  |
Expected cumulative costs | $ 135 |  |  |
Total expenses | 103 |  |  |
Accrued restructuring liability | 4 | $ 6 |  | $ 15
Severance and Related Benefits |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Accrued restructuring liability | 4 | $ 6 |  | 12
Other Restructuring Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Accrued restructuring liability |  |  |  | $ 3
The Plan [Member] |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Expected cumulative costs |  |  | $ 135 |
Expected annual cost savings by 2022 |  |  | 196 |
Total expenses | $ 103 |  |  |
The Plan [Member] | Severance and Related Benefits |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Expected cumulative costs |  |  | 80 |
The Plan [Member] | Other Restructuring Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Expected cumulative costs |  |  | $ 55 |

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