Consolidated Balance Sheet (Footnote Amounts) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010
Assets
Interest bearing deposits with banks	$ 25,454		$ 8,202
Securities held-to-maturity	2,035		3,190
Loans, net	51,124		48,957
Other assets	6,369		7,099
Assets of discontinued operations	21,454		22,639
Total assets	210,280	[1]	183,813	[1]
Liabilities
Short-term borrowings	16,009		15,187
Long-term debt	16,709		17,080
Interest, taxes and other liabilities	4,223		3,007
Liabilities of discontinued operations	911		660
Total liabilities	191,778	[1]	167,080	[1]
HSBC BANK USA, National Association
Assets
Interest bearing deposits with banks	23,105		8,051
Securities held-to-maturity	2,017		3,151
Loans, net	51,951		48,044
Other assets	6,319		6,718
Assets of discontinued operations	21,454		22,639
Total assets	206,010	[1]	181,118	[1]
Liabilities
Short-term borrowings	11,173		12,167
Long-term debt	8,319		8,671
Interest, taxes and other liabilities	4,516		3,160
Liabilities of discontinued operations	911		660
Total liabilities	186,497	[1]	163,515	[1]
Variable interest entities [Member]
Assets
Interest bearing deposits with banks	108		759
Securities held-to-maturity	0		881
Loans, net	0		1,220
Other assets	520		512
Assets of discontinued operations	0		11,908
Total assets	628		15,280
Liabilities
Short-term borrowings	0		3,022
Long-term debt	55		55
Interest, taxes and other liabilities	166		112
Liabilities of discontinued operations	541		431
Total liabilities	762		3,620
Variable interest entities [Member] | HSBC BANK USA, National Association
Assets
Interest bearing deposits with banks	108		759
Securities held-to-maturity	0		881
Loans, net	0		1,220
Other assets	520		512
Assets of discontinued operations	0		11,908
Total assets	628		15,280
Liabilities
Short-term borrowings	0		3,022
Long-term debt	55		55
Interest, taxes and other liabilities	166		112
Liabilities of discontinued operations	541		431
Total liabilities	$ 762		$ 3,620

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") as of December 31, 2011 and 2010 which are consolidated on our balance sheet. Assets and liabilities exclude intercompany balances that eliminate in consolidation.