Equity	6 Months Ended
Jun. 29, 2012
Equity [Abstract]
Equity	12. Equity On April 26, 2011, L-3 Holdings’ Board of Directors approved a new share repurchase program that authorizes L-3 Holdings to repurchase up to $1.5 billion of its outstanding shares of common stock through April 30, 2013. Repurchases of L-3 Holdings common stock under the share repurchase programs, approved by the Board of Directors, are made at management’s discretion in accordance with applicable U.S. federal securities laws in the open market or otherwise. The timing and actual number of shares to be repurchased in the future will depend on a variety of factors, including the Company’s financial position, earnings, legal requirements, other investment opportunities (including acquisitions), market conditions and other factors. All share repurchases of L-3 Holdings common stock have been recorded as treasury shares. L-3 Holdings repurchased 4.5 million shares of its common stock at an average price of $69.46 per share for an aggregate amount of approximately $315 million from January 1, 2012 through June 29, 2012. At June 29, 2012, the remaining dollar value under the $1.5 billion share repurchase program was approximately $819 million. From June 30, 2012 through August 1, 2012, L-3 Holdings repurchased 320,726 shares of its common stock at an average price of $69.27 per share for an aggregate amount of $22 million. On June 26, 2012, L-3 Holdings’ Board of Directors declared a quarterly cash dividend of $0.50 per share, payable on September 17, 2012, to shareholders of record at the close of business on August 17, 2012.

Equity

6 Months Ended

Jun. 29, 2012

12. Equity

On April 26, 2011, L-3 Holdings’ Board of Directors approved a new share repurchase program that authorizes L-3 Holdings to repurchase up to $1.5 billion of its outstanding shares of common stock through April 30, 2013. Repurchases of L-3 Holdings common stock under the share repurchase programs, approved by the Board of Directors, are made at management’s discretion in accordance with applicable U.S. federal securities laws in the open market or otherwise. The timing and actual number of shares to be repurchased in the future will depend on a variety of factors, including the Company’s financial position, earnings, legal requirements, other investment opportunities (including acquisitions), market conditions and other factors. All share repurchases of L-3 Holdings common stock have been recorded as treasury shares. L-3 Holdings repurchased 4.5 million shares of its common stock at an average price of $69.46 per share for an aggregate amount of approximately $315 million from January 1, 2012 through June 29, 2012. At June 29, 2012, the remaining dollar value under the $1.5 billion share repurchase program was approximately $819 million.

From June 30, 2012 through August 1, 2012, L-3 Holdings repurchased 320,726 shares of its common stock at an average price of $69.27 per share for an aggregate amount of $22 million.

On June 26, 2012, L-3 Holdings’ Board of Directors declared a quarterly cash dividend of $0.50 per share, payable on September 17, 2012, to shareholders of record at the close of business on August 17, 2012.