CONSOLIDATED STATEMENT OF INCOME - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Interest income:
Loans		$ 2,589	$ 2,241		$ 2,284
Securities		1,131	952		956
Trading securities		213	209		262
Short-term investments		645	669		365
Other		77	52		43
Total interest income		4,655	4,123		3,910
Interest expense:
Deposits		1,072	703		468
Short-term borrowings		172	124		79
Long-term debt		1,123	998		864
Other		36	25		15
Total interest expense		2,403	1,850		1,426
Net interest income		2,252	2,273		2,484
Provision for credit losses		(73)	(165)		372
Net interest income after provision for credit losses		2,325	2,438		2,112
Other revenues:
Other revenues		1,236	1,233		1,235
Trading revenue		625	354		227
Other securities gains, net		24	52		70
Gain (loss) on instruments designated at fair value and related derivatives		19	43		(71)
Other income (loss)		6	334		(37)
Total other revenues	[1]	1,899	2,002		1,404	[2]
Operating expenses:
Salaries and employee benefits		830	1,077		981
Support services from HSBC affiliates		1,603	1,549		1,495
Occupancy expense, net		185	202		171
Other expenses		1,020	563		651
Total operating expenses	[1]	3,638	3,391	[3]	3,298	[3]
Income before income tax		586	1,049		218
Income tax expense		266	1,228		89
Net income (loss)		320	(179)		129
Credit card fees, net [Member]
Other revenues:
Other revenues		50	46		52
Trust and investment management fees [Member]
Other revenues:
Other revenues		135	156		153
Other fees and commissions [Member]
Other revenues:
Other revenues		684	669		721
Servicing and other fees from HSBC affiliates [Member]
Other revenues:
Other revenues		$ 356	$ 348		$ 289

[1] Represents adjustments associated with differences between U.S. GAAP and the Group Reporting Basis. These adjustments, which are more fully described above, consist of the following: NetInterestIncome OtherRevenues Provisionfor CreditLosses OperatingExpenses Profit (Loss)before IncomeTax Expense TotalAssets (in millions)December 31, 2018 Deposit incentives$9 $— $— $20 $(11) $(10)Derivatives— — — — — (30,866)Expected credit losses / loan impairment(6) — 118 — (124) (386)Goodwill— — — — — 347Loan origination(29) (3) — (14) (18) 45Loans held for sale9 6 (3) — 18 45Pension and other postretirement benefit costs— — — 8 (8) (44)Property— — — (8) 8 7Securities transferred to held-to-maturity— — — — — (76)Other1 (12) — (3) (8) 11Total adjustments$(16) $(9) $115 $3 $(143) $(30,927) December 31, 2017 Derivatives$— $— $— $— $— $(32,900)Expected credit losses / loan impairment(43) — (72) — 29 (332)Goodwill— (1) — — (1) 347Loan origination(19) — — (14) (5) 42Loans held for sale9 141 — — 150 21Pension and other postretirement benefit costs— — — 94 (94) (263)Property— — — (11) 11 8Structured notes and deposits— 85 — — 85 —Other5 (25) — 6 (26) (1)Total adjustments$(48) $200 $(72) $75 $149 $(33,078) December 31, 2016 Derivatives$— $— $— $— $— $(44,911)Expected credit losses / loan impairment(57) 7 (58) 1 7 (326)Goodwill— — — — — 348Loan origination(21) — — (19) (2) 35Loans held for sale— (80) (20) — (60) (31)Pension and other postretirement benefit costs— — — 19 (19) (191)Property— — — (19) 19 16Unquoted equity securities— — — — — (163)Other2 (31) — (8) (21) (11)Total adjustments$(76) $(104) $(78) $(26) $(76) $(45,234)

[2] See Note 23, "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.

[3] Represents differences in financial statement presentation between U.S. GAAP and the Group Reporting Basis.