| Document and Entity Information | Oct. 17, 2019 |
| Cover [Abstract] | |
| Entity Registrant Name | LSC COMMUNICATIONS, INC. |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Central Index Key | 0001669812 |
| Document Period End Date | Oct. 17, 2019 |
| Entity Emerging Growth Company | false |
| Entity File Number | 001-37729 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 36-4829580 |
| Entity Address, Address Line One | 191 N. Wacker Drive |
| Entity Address, Address Line Two | Suite 1400 |
| Entity Address, City or Town | Chicago |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60606 |
| City Area Code | 773 |
| Local Phone Number | 272-9200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of each class | Common stock, par value $0.01 per share |
| Trading Symbol | LKSD |
| Name of each exchange on which registered | NYSE |
