Restructuring and Related Costs - Schedule of Restructuring Reserve by Type of Cost (Details) - 2021 Restructuring Plan $ in Millions |
12 Months Ended |
---|---|
Sep. 30, 2023
USD ($)
| |
Restructuring Reserve [Roll Forward] | |
Restructuring reserve, beginning balance | $ 276 |
Utilized—cash | (130) |
Utilized—noncash | (41) |
Restructuring reserve, ending balance | 105 |
Employee Severance and Termination Benefits | |
Restructuring Reserve [Roll Forward] | |
Restructuring reserve, beginning balance | 204 |
Utilized—cash | (111) |
Utilized—noncash | 0 |
Restructuring reserve, ending balance | 93 |
Long-Lived Asset Impairments | |
Restructuring Reserve [Roll Forward] | |
Restructuring reserve, beginning balance | 38 |
Utilized—cash | 0 |
Utilized—noncash | (38) |
Restructuring reserve, ending balance | 0 |
Other | |
Restructuring Reserve [Roll Forward] | |
Restructuring reserve, beginning balance | 34 |
Utilized—cash | (19) |
Utilized—noncash | (3) |
Restructuring reserve, ending balance | $ 12 |