text: Share Repurchases 
  In February 2013, our Board of Directors authorized a program to repurchase up to $800 of our outstanding common stock, through March 1, 
  2015. In September 2014, our Board of Directors authorized a new program to repurchase up to $1,000 of our outstanding common stock, 
  through March 1, 2016, in addition to the remaining amount available for repurchase under previously authorized programs. During 2014, we 
  repurchased 8.9 shares of our common stock for an aggregate purchase price of $595 and had $1,075 remaining in share repurchase 
  capacity as of January 31, 2015. The actual number and timing of future share repurchases, if any, will be subject to market and economic 
  conditions and applicable SEC rules. 
  
  Dividends 
  In 2014, we paid dividends of $251, or $1.32 per share, compared with $234, or $1.20 per share, in 2013 and $220, or $1.08 per share, in 
  2012. During the first quarter of 2014, we increased our quarterly dividend from $0.30 per share to $0.33 per share. In determining the 
  amount of dividends to pay, we analyze our dividend payout ratio and dividend yield, while taking into consideration our current and projected 
  operating performance and liquidity. Our dividend payout ratio target range is 30% to 35% and is calculated as our dividend payments 
  divided by net earnings. 