CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowances	$ 246	$ 381
Common stock, par value (in dollars per share)	$ 0.000001	$ 0.000001
Common stock, shares authorized	2,400,000,000	2,400,000,000
Common stock, shares issued	1,145,378,067	1,132,385,424
Treasury stock, shares	428,676,471	428,676,471