Separation of Kyndryl (Details) $ in Millions |
3 Months Ended | |||
|---|---|---|---|---|
|
Mar. 31, 2022
USD ($)
|
Mar. 31, 2021
USD ($)
|
Dec. 31, 2021
USD ($)
|
Nov. 03, 2021 |
|
| Kyndryl Holdings, Inc | ||||
| Discontinued Operations | ||||
| Kyndryl stock distributed to IBM stockholders | 80.10% | |||
| Share conversion ratio | 0.2 | |||
| Upgraded hardware period | 2 years | |||
| Kyndryl Holdings, Inc | Maximum | ||||
| Discontinued Operations | ||||
| Transition services period | 2 years | |||
| Kyndryl Holdings, Inc | Accrued expenses and other liabilities | ||||
| Discontinued Operations | ||||
| Estimated obligation | $ 265 | $ 265 | ||
| Kyndryl Holdings, Inc | ||||
| Discontinued Operations | ||||
| Kyndryl stock distributed to IBM stockholders | 80.10% | |||
| Ownership interest by stockholders (in percent) | 19.90% | |||
| Pre-tax gain on sale | 68 | |||
| Managed infrastructure services unit | Disposed by separation | ||||
| Discontinued Operations | ||||
| Separation costs | $ 3 | $ 50 | ||