Stock Repurchases	12 Months Ended
Dec. 31, 2014
Stockholders' Equity Note [Abstract]
Stock Repurchases	Stock Repurchases: Our Board of Directors has authorized a total of $1.4 billion towards the repurchase of shares of our common stock (collectively referred to as the "Share Repurchase Plans"), including a $700.0 million share repurchase authorization in October 2014. The Share Repurchase Plans authorize open market repurchase transactions and do not have a stated expiration date. As of December 31, 2014, $395.9 million of shares may still be repurchased under the Share Repurchase Plans. On October 20, 2014, we announced our plans for a new $450.0 million accelerated share repurchase program. For the years ended December 31, 2014 and 2013, we repurchased 5.2 million shares for $550.3 million and 1.7 million shares for $125.0 million, respectively, under the Share Repurchase Plans. The final number of shares to be repurchased and the aggregate cost to LII will be based on LII's volume-weighted average stock price during the term of the transaction, which is expected to be completed in the second half of 2015. We also repurchased 0.2 million shares for $22.4 million and 0.2 million shares for $12.0 million for the years ended December 31, 2014 and 2013, respectively, from employees who surrendered their shares to satisfy minimum tax withholding obligations upon the vesting of stock-based compensation awards.

Stock Repurchases:

Our Board of Directors has authorized a total of $1.4 billion towards the repurchase of shares of our common stock (collectively referred to as the "Share Repurchase Plans"), including a $700.0 million share repurchase authorization in October 2014. The Share Repurchase Plans authorize open market repurchase transactions and do not have a stated expiration date. As of December 31, 2014, $395.9 million of shares may still be repurchased under the Share Repurchase Plans.

On October 20, 2014, we announced our plans for a new $450.0 million accelerated share repurchase program. For the years ended December 31, 2014 and 2013, we repurchased 5.2 million shares for $550.3 million and 1.7 million shares for $125.0 million, respectively, under the Share Repurchase Plans. The final number of shares to be repurchased and the aggregate cost to LII will be based on LII's volume-weighted average stock price during the term of the transaction, which is expected to be completed in the second half of 2015.

We also repurchased 0.2 million shares for $22.4 million and 0.2 million shares for $12.0 million for the years ended December 31, 2014 and 2013, respectively, from employees who surrendered their shares to satisfy minimum tax withholding obligations upon the vesting of stock-based compensation awards.