Restructuring and Other Charges - Restructuring and Other Charges by Segment (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring and other charges (E) | $ 112 | $ 14 | $ 119 | $ 612 |
| Operating segments | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring and other charges (E) | 91 | 3 | 93 | 6 |
| Operating segments | Rolled Products | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring and other charges (E) | (1) | 0 | (1) | 1 |
| Operating segments | Building and Construction Systems | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring and other charges (E) | 2 | 0 | 2 | (1) |
| Operating segments | Extrusions | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring and other charges (E) | 88 | (3) | 90 | (6) |
| Corporate, Non-Segment | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring and other charges (E) | $ 21 | $ 11 | $ 26 | $ 606 |