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

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Three Months Ended September 30, 

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Nine Months Ended September 30, 

(Dollars in millions)

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2021

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2020

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2021

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2020

Cost

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$

45

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$

42

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$

127

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$

109

Selling, general and administrative

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156

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129

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431

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401

Research, development and engineering

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61

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50

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160

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147

Pre-tax stock-based compensation cost

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$

262

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$

222

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$

719

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$

658

Income tax benefits

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(58)

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(50)

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(179)

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(146)

Total net stock-based compensation cost

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$

204

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$

172

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$

540

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$

512