v3.20.2

Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	$ 1,415	$ 1,805	$ 4,213	$ 5,569
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	1,419	1,810	4,232	5,590
Ground Transportation
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	518	618	1,304	1,966
Building and Construction
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	283	329	837	1,004
Aerospace
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	151	311	688	975
Industrial Products and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	265	311	817	937
Packaging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	198	236	571	687
Products and Services, Net | Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	1,415	1,805	4,217	5,569
Rolled Products [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	1,092	1,397	3,194	4,294
Rolled Products [Member] | Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	1,095	1,401	3,208	4,314
Rolled Products [Member] | Ground Transportation
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	493	592	1,242	1,878
Rolled Products [Member] | Building and Construction
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	42	47	110	149
Rolled Products [Member] | Aerospace
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	107	243	505	754
Rolled Products [Member] | Industrial Products and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	252	279	766	826
Rolled Products [Member] | Packaging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	198	236	571	687
Extrusions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	82	126	296	420
Extrusions [Member] | Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	83	127	297	421
Extrusions [Member] | Ground Transportation
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	25	26	62	88
Extrusions [Member] | Building and Construction
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	0	0	0	0
Extrusions [Member] | Aerospace
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	44	68	183	221
Extrusions [Member] | Industrial Products and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	13	32	51	111
Extrusions [Member] | Packaging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	0	0	0	0
Building and Construction Systems [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	241	282	727	855
Building and Construction Systems [Member] | Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	241	282	727	855
Building and Construction Systems [Member] | Ground Transportation
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	0	0	0	0
Building and Construction Systems [Member] | Building and Construction
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	241	282	727	855
Building and Construction Systems [Member] | Aerospace
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	0	0	0	0
Building and Construction Systems [Member] | Industrial Products and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	0	0	0	0
Building and Construction Systems [Member] | Packaging
Segment Reporting, Revenue Reconciling Item [Line Items]
Total end-market revenue	$ 0	$ 0	$ 0	$ 0

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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