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Revenue
 9 Months Ended
Sep. 30, 2025
Revenue from Contract with Customer [Abstract]  
Revenue Revenue
Disaggregated Revenue
The following table presents revenues by product category (in millions):
Three months ended
September 30,		Nine months ended
September 30,
2025202420252024
Optical communications products$1,652 $1,246 $4,573 $3,289 
Display products773 707 2,202 2,043 
Specialty materials products617 543 1,654 1,490 
Automotive products453 410 1,336 1,325 
Life sciences products241 235 715 697 
Polycrystalline silicon products285 194 714 609 
All other products79 56 220 164 
Total revenue$4,100 $3,391 $11,414 $9,617 
Customer Deposits
As of September 30, 2025 and December 31, 2024, Corning had customer deposits of approximately $1.1 billion. Most of these customer deposits were non-refundable and allowed customers to secure rights to products produced under long-term supply agreements, generally over a period of up to ten years. As products are delivered to customers, Corning will recognize revenue and reduce the amount of the customer deposit liability.
For the three months ended September 30, 2025 and 2024, customer deposits recognized were $13 million and $36 million, respectively. For the nine months ended September 30, 2025 and 2024, customer deposits recognized were $94 million and $127 million, respectively.
Refer to Note 7 (Other Liabilities) for additional information.
Deferred Revenue
As of September 30, 2025 and December 31, 2024, Corning had deferred revenue of approximately $725 million and $833 million, respectively. Deferred revenue was primarily related to the performance obligations of non-refundable consideration previously received by HSG from its customers under long-term supply agreements.
Deferred revenue is tracked on a per-customer contract-unit basis. As customers take delivery of the committed volumes under the terms of the contract, a per-unit amount of deferred revenue is recognized when control of the promised goods is transferred to the customer based upon the units delivered compared to the remaining contractual units. For the three and nine months ended September 30, 2025 and 2024, the amount of deferred revenue recognized in the consolidated statements of income (loss) was not material.
Refer to Note 7 (Other Liabilities) for additional information.