CONSOLIDATED STATEMENT OF INCOME (LOSS) (UNAUDITED) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Interest income:
Loans		$ 598	$ 573
Securities		253	242
Trading securities		49	58
Short-term investments		158	131
Other		16	11
Total interest income		1,074	1,015
Interest expense:
Deposits		222	150
Short-term borrowings		33	23
Long-term debt		257	242
Other		10	3
Total interest expense		522	418
Net interest income	[1]	552	597
Provision for credit losses		(71)	(77)
Net interest income after provision for credit losses		623	674
Other revenues:
Credit card fees		11	11
Trust and investment management fees		38	38
Other fees and commissions		160	162
Trading revenue		163	70
Other securities gains, net		5	5
Servicing and other fees from HSBC affiliates		99	114
Residential mortgage banking revenue (expense)		0	(2)
Gain on instruments designated at fair value and related derivatives		30	34
Other income		7	161
Total other revenues	[2],[3]	513	593
Operating expenses:
Salaries and employee benefits		207	265
Support services from HSBC affiliates		411	384
Occupancy expense, net		43	41
Other expenses		621	129
Total operating expenses	[2]	1,282	819	[4]
Income (loss) before income tax		(146)	448
Income tax expense		92	152
Net income (loss)		$ (238)	$ 296

[1] Net interest income of each segment represents the difference between actual interest earned on assets and interest paid on liabilities of the segment adjusted for a funding charge or credit. Segments are charged a cost to fund assets (e.g. customer loans) and receive a funding credit for funds provided (e.g. customer deposits) based on equivalent market rates. The objective of these charges/credits is to transfer interest rate risk from the segments to one centralized unit in Balance Sheet Management and more appropriately reflect the profitability of the segments.

[2] Expenses for the segments include fully apportioned corporate overhead expenses.

[3] See Note 15, "Business Segments," for a reconciliation of total other revenues on a U.S. GAAP basis to other operating income for each business segment under the Group Reporting Basis.

[4] During the fourth quarter of 2017, we changed our presentation for certain cost reimbursements that were previously netted as an offset to affiliate expense and began presenting these reimbursements gross in affiliate income. As a result, we have reclassified prior period amounts in order to conform to the current year presentation, which increased both RBWM other operating income and RBWM operating expenses $11 million and also increased both GB&M other operating income and GB&M operating expenses $21 million during the three months ended March 31, 2017. See Note 14, "Related Party Transactions," for additional information.