Annual report pursuant to Section 13 and 15(d)

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

v2.4.0.6
BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2011
Summary of Significant Accounting Policies [Abstract]  
Activity in allowance for doubtful accounts
Activity in the allowance for doubtful accounts was as follows (in millions):
Year Ended December 31,
2011

 
2010

 
2009

Balance at beginning of year
$
48

 
$
55

 
$
51

Net charges to costs and expenses
56

 
21

 
24

Write-offs
(12
)
 
(18
)
 
(22
)
Other1
(9
)
 
(10
)
 
2

Balance at end of year
$
83

 
$
48

 
$
55

1 
Other includes acquisitions, divestitures and currency translation.