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Schedule II - Valuation and Qualifying Accounts (Tables)
12 Months Ended
Dec. 31, 2015
SEC Schedule Article 12-09 Valuation And Qualifying Accounts [Abstract]  
Schedule Of Valuation And Qualifying Accounts Disclosure [Table Text Block]
SCHEDULE II
UNITED TECHNOLOGIES CORPORATION AND SUBSIDIARIES
Valuation and Qualifying Accounts
Three years ended December 31, 2015
(Millions of Dollars)
 
Allowances for Doubtful Accounts and Other Customer Financing Activity:
 
 
Balance December 31, 2012
 
$
513

Provision charged to income
 
74

Doubtful accounts written off (net)
 
(68
)
Other adjustments
 
19

Balance December 31, 2013
 
538

Provision charged to income
 
93

Doubtful accounts written off (net)
 
(91
)
Other adjustments
 
(46
)
Balance December 31, 2014
 
494

Provision charged to income
 
137

Doubtful accounts written off (net)
 
(59
)
Other adjustments
 
(19
)
Balance December 31, 2015
 
$
553

Future Income Tax Benefits—Valuation allowance:
 
 
Balance December 31, 2012
 
$
904

Additions charged to income tax expense
 
134

Additions charged to goodwill, due to acquisitions
 
12

Reductions credited to income tax expense
 
(52
)
Other adjustments
 
(56
)
Balance December 31, 2013
 
942

Additions charged to income tax expense
 
91

Reductions credited to income tax expense
 
(55
)
Other adjustments  1
 
(366
)
Balance December 31, 2014
 
612

Additions charged to income tax expense
 
42

Additions charged to goodwill, due to acquisitions
 
7

Reductions credited to income tax expense
 
(41
)
Other adjustments 1
 
(29
)
Balance December 31, 2015
 
$
591


Note 1: Included in Other adjustments in the table above are adjustments to valuation allowances associated with an agreement with a state taxing authority for the monetization of tax credits.