| Year Ended December | ||||||||||||
| 2013 | 2012 | 2011 | ||||||||||
|
U.S. federal statutory income tax rate |
35.0 | % | 35.0 | % | 35.0 | % | ||||||
|
State and local taxes, net of U.S. federal income tax effects |
4.1 | 3.8 | 4.4 | |||||||||
|
Tax credits |
(1.0 | ) | (1.0 | ) | (1.6 | ) | ||||||
|
Non-U.S. operations 1 |
(5.6 | ) | (4.8 | ) | (6.7 | ) | ||||||
|
Tax-exempt income, including dividends |
(0.5 | ) | (0.5 | ) | (2.4 | ) | ||||||
|
Other |
(0.5 | ) | 0.8 | (0.7 | ) | |||||||
|
Effective income tax rate |
31.5 | % | 33.3 | % | 28.0 | % | ||||||
| 1. |
Includes the impact of permanently reinvested earnings. |