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401(k) Plans	12 Months Ended
Dec. 31, 2012
401(k) Plans	Note 13. 401(k) Plans We have two 401(k) Savings Plans (401(k) Plans) that qualify as deferred salary arrangements under Section 401(k) of the Internal Revenue Code. Under these 401(k) Plans, matching contributions are based upon the amount of the employees’ contributions subject to certain limitations. We contributed approximately $100 million, $136 million, and $180 million during 2010, 2011, and 2012.

401(k) Plans

12 Months Ended

Dec. 31, 2012

Note 13. 401(k) Plans

We have two 401(k) Savings Plans (401(k) Plans) that qualify as deferred salary arrangements under Section 401(k) of the Internal Revenue Code. Under these 401(k) Plans, matching contributions are based upon the amount of the employees’ contributions subject to certain limitations. We contributed approximately $100 million, $136 million, and $180 million during 2010, 2011, and 2012.