Year Ended December 31
(Dollars and Shares in Millions, Except Per Share Data)
  2008     2007     2006   2008
v 2007
  2007
v 2006
Total net revenue (taxable-equivalent basis) $ 14,677 $ 14,060 $ 13,742 4.4 % 2.3 %
Noninterest expense 7,414 6,986 6,286 6.1 11.1
Provision for credit losses 3,096 792 544 * 45.6  
Income taxes and
taxable-equivalent adjustments
1,221     1,958     2,161 (37.6 ) (9.4 )
Net Income $ 2,946   $ 4,324   $ 4,751 (31.9 ) (9.0 )
Net Income applicable
to common equity
$ 2,823   $ 4,264   $ 4,703 (33.8 ) (9.3 )

Per Common Share

Earnings per share $ 1.62 $ 2.46 $ 2.64 (34.1 )% (6.8 )%
Diluted earnings per share 1.61 2.43 2.61 (33.7 ) (6.9 )
Dividends declared per share 1.700 1.625 1.390 4.6 16.9
Book value per share 10.47 11.60 11.44 (9.7 ) 1.4
Market value per share 25.01 31.74 36.19 (21.2 ) (12.3 )
Average common shares outstanding 1,742 1,735 1,778 .4   (2.4 )
Average diluted common
shares outstanding
1,757 1,758 1,804 (.1 ) (2.5 )

Financial Ratios

Return on average assets 1.21 % 1.93 % 2.23 %
Return on average common equity 13.9 21.3 23.6
Net interest margin (taxable-equivalent basis) 3.66 3.47 3.65
Efficiency ratio (a) 47.4 49.7 45.8
Tangible common equity 3.2 4.7 5.2
Tangible common equity, excluding
accumulated other comprehensive income (loss)
4.5 5.2 5.5

Average Balances

Loans $ 165,552 $ 147,348 $ 140,601 12.4 % 4.8 %
Investment securities 42,850 41,313 39,961 3.7 3.4  
Earning assets 215,046 194,683 186,231 10.5 4.5
Assets 244,400 223,621 213,512 9.3 4.7
Deposits 136,184 121,075 120,589 12.5 .4  
Total shareholders’ equity 22,570 20,997 20,710 7.5 1.4

Period End Balances

Loans $ 185,229 $ 153,827 $ 143,597 20.4 % 7.1 %
Allowance for credit losses 3,639 2,260 2,256 61.0   .2
Investment securities 39,521 43,116 40,117 (8.3 ) 7.5
Assets 265,912 237,615 219,232 11.9 8.4
Deposits 159,350 131,445 124,882 21.2 5.3
Shareholders’ equity 26,300 21,046 21,197 25.0   (.7 )
Regulatory capital ratios
Tier 1 capital 10.6 % 8.3 % 8.8 %
Total risk-based capital 14.3 12.2 12.6
Leverage

9.8 7.9 8.2
(a) Computed as noninterest expense divided by the sum of net interest income on a taxable-equivalent basis and noninterest income excluding securities gains (losses), net.
*Not meaningful