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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2021
Stock-Based Compensation  
Stock-based compensation cost included in income from continuing operations

Three Months Ended June 30, 

Six Months Ended June 30, 

(Dollars in millions)

2021

2020

2021

2020

Cost

$

41

$

40

$

82

$

67

Selling, general and administrative

 

152

 

155

 

275

 

272

Research, development and engineering

 

50

 

52

 

99

 

97

Pre-tax stock-based compensation cost

$

243

$

247

$

457

$

436

Income tax benefits

 

(69)

 

(52)

 

(121)

 

(96)

Total net stock-based compensation cost

$

175

$

196

$

336

$

340