Quarterly report pursuant to Section 13 or 15(d)

CASH AND INVESTMENTS - Additional Information (Detail)

v2.3.0.15
CASH AND INVESTMENTS - Additional Information (Detail) (USD $)
In Millions
3 Months Ended
Sep. 30, 2011
Dec. 31, 2010
Jun. 30, 2010
Asset-backed Securities
Sep. 30, 2011
Self-insurance requirements
Dec. 31, 2010
Self-insurance requirements
Sep. 30, 2011
Variable life insurance policy
Gain (Loss) on Investments [Line Items]            
Auction rate securities at carrying value     $ 128      
Auction rate securities fair value     107      
Impairment charge     21      
Non-Current Investments and Restricted Cash $ 303 $ 458   $ 286 $ 286 $ 17