Segment Financial Data (Tables)
 9 Months Ended
Sep. 30, 2016
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Results for the quarters ended September 30, 2016 and 2015 are as follows:
 
Net Sales
 
Operating Profits
 
Operating Profit Margins
(Dollars in millions)
2016
 
2015
 
2016
 
2015
 
2016
 
2015
Otis
$
3,018

 
$
3,043

 
$
584

 
$
642

 
19.4
%
 
21.1
%
UTC Climate, Controls & Security
4,415

 
4,279

 
801

 
771

 
18.1
%
 
18.0
%
Pratt & Whitney
3,501

 
3,234

 
340

 
419

 
9.7
%
 
13.0
%
UTC Aerospace Systems
3,646

 
3,457

 
600

 
572

 
16.5
%
 
16.5
%
Total segments
14,580

 
14,013

 
2,325

 
2,404

 
15.9
%
 
17.2
%
Eliminations and other
(226
)
 
(225
)
 
18

 
(1
)
 
 
 
 
General corporate expenses
—

 
—

 
(92
)
 
(101
)
 
 
 
 
Consolidated
$
14,354

 
$
13,788

 
$
2,251

 
$
2,302

 
15.7
%
 
16.7
%

Results for the nine months ended September 30, 2016 and 2015 are as follows:
 
Net Sales
 
Operating Profits
 
Operating Profit Margins
(Dollars in millions)
2016
 
2015
 
2016
 
2015
 
2016
 
2015
Otis
$
8,830

 
$
8,886

 
$
1,631

 
$
1,796

 
18.5
%
 
20.2
%
UTC Climate, Controls & Security
12,602

 
12,585

 
2,279

 
2,323

 
18.1
%
 
18.5
%
Pratt & Whitney
10,902

 
10,243

 
1,136

 
1,325

 
10.4
%
 
12.9
%
UTC Aerospace Systems
10,867

 
10,637

 
1,720

 
1,721

 
15.8
%
 
16.2
%
Total segments
43,201

 
42,351

 
6,766

 
7,165

 
15.7
%
 
16.9
%
Eliminations and other
(616
)
 
(553
)
 
47

 
65

 
 
 
 
General corporate expenses
—

 
—

 
(280
)
 
(331
)
 
 
 
 
Consolidated
$
42,585

 
$
41,798

 
$
6,533

 
$
6,899

 
15.3
%
 
16.5
%