Risk Management (Details) - Schedule of Breakdown of Bank's Fixed Income by Levels - CLP ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Schedule of Breakdown of Bank's Fixed Income by Levels [Abstract]
Level 1: cash and cash equivalent	$ 1,969,547	$ 1,453,265
Level 2: fixed income	6,072,282	5,424,452
Level 2: fixed income	6,240	8,066
Total	$ 8,048,069	$ 6,885,783

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value.

No definition available.

Name:	bsac_CashAndCashEquivalent
Namespace Prefix:	bsac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant