Consolidated Statements of Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest Income
Loans	$ 649	$ 608	$ 1,278	$ 1,202
Securities	118	134	236	276
Interest income - other	2		5	2
Total interest income	769	742	1,519	1,480
Interest Expense
Deposits	67	57	132	115
Long-term debt	35	36	71	72
Commercial paper and other short-term borrowings	1	3	2	6
Total interest expense	103	96	205	193
Net Interest Income	666	646	1,314	1,287
(Reversal of) provision for loan losses	(3)	(14)	(6)	(15)
Net interest income after (reversal of) provision for loan losses	669	660	1,320	1,302
Noninterest Income
Service charges on deposit accounts	52	52	105	107
Trust and investment management fees	38	27	73	57
Trading account activities	24	25	32	56
Securities gains, net	27	28	123	47
Credit facility fees	26	26	52	51
Merchant banking fees	23	19	39	42
Brokerage commissions and fees	12	11	24	21
Card processing fees, net	9	8	18	16
Other, net	(6)	(8)	(6)	5
Total noninterest income	205	188	460	402
Noninterest Expense
Salaries and employee benefits	413	351	834	715
Net occupancy and equipment	84	64	159	132
Professional and outside services	62	47	120	93
Intangible asset amortization	17	21	33	42
Regulatory assessments	20	16	40	34
(Reversal of) provision for losses on off-balance sheet commitments	(2)	(1)	13	(3)
Other	108	101	216	200
Total noninterest expense	702	599	1,415	1,213
Income before income taxes and including noncontrolling interests	172	249	365	491
Income tax expense	34	67	84	118
Net Income Including Noncontrolling Interests	138	182	281	373
Deduct: Net loss from noncontrolling interests	3	5	7	9
Net Income Attributable to UnionBanCal Corporation (UNBC)	$ 141	$ 187	$ 288	$ 382