v3.23.2
Revenue from Contracts with Customers (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 1,990,000,000 $ 2,548,000,000 $ 3,919,000,000 $ 4,739,000,000
Aluminum price per metric ton 2,811 3,687 2,913 3,874
External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,973,000,000 2,547,000,000 3,905,000,000 4,739,000,000
Ground Transportation [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 787,000,000 872,000,000 1,551,000,000 1,627,000,000
Building and Construction [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 370,000,000 423,000,000 717,000,000 798,000,000
Aerospace [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 314,000,000 249,000,000 622,000,000 459,000,000
Packaging [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 194,000,000 518,000,000 411,000,000 915,000,000
Industrial Products [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 308,000,000 485,000,000 604,000,000 940,000,000
Rolled Products | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,529,000,000 2,113,000,000 3,033,000,000 3,917,000,000
Rolled Products | External Sales Including Reconciling Items | Disposed of by sale | Samara Manufacturing Site        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax   314,000,000   547,000,000
Rolled Products | Ground Transportation [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 764,000,000 844,000,000 1,502,000,000 1,570,000,000
Rolled Products | Building and Construction [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 51,000,000 94,000,000 90,000,000 178,000,000
Rolled Products | Aerospace [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 241,000,000 200,000,000 483,000,000 367,000,000
Rolled Products | Packaging [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 194,000,000 518,000,000 411,000,000 915,000,000
Rolled Products | Industrial Products [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 279,000,000 457,000,000 547,000,000 887,000,000
Building and Construction Systems | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 319,000,000 329,000,000 627,000,000 620,000,000
Building and Construction Systems | Ground Transportation [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Building and Construction Systems | Building and Construction [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 319,000,000 329,000,000 627,000,000 620,000,000
Building and Construction Systems | Aerospace [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Building and Construction Systems | Packaging [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Building and Construction Systems | Industrial Products [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Extrusions | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 125,000,000 105,000,000 245,000,000 202,000,000
Extrusions | Ground Transportation [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 23,000,000 28,000,000 49,000,000 57,000,000
Extrusions | Building and Construction [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Extrusions | Aerospace [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 73,000,000 49,000,000 139,000,000 92,000,000
Extrusions | Packaging [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Extrusions | Industrial Products [Member] | External Sales Including Reconciling Items        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 29,000,000 $ 28,000,000 $ 57,000,000 $ 53,000,000