Receivables - Retrospective Review of Trouble Debt Restructuring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
New TDR Loan Volumes In The Period [Abstract]
Interest rate modification	$ 244	$ 219
Re-age of past due account	28	356
Total	$ 272	$ 575

Financing Receivable, Modifications, Interest Rate Modifications

No definition available.

Name:	hsbcfc_FinancingReceivableModificationsInterestRateModifications
Namespace Prefix:	hsbcfc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration