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Commitments (Tables)
6 Months Ended
Jun. 30, 2020
Commitments  
Changes in warranty liabilities

Standard Warranty Liability

(Dollars in millions)

    

2020

    

2019

Balance at January 1

$

113

$

118

Current period accruals

 

43

 

45

Accrual adjustments to reflect actual experience

 

(14)

 

(1)

Charges incurred

 

(49)

 

(59)

Balance at June 30

$

93

$

103

Extended Warranty Liability

(Dollars in millions)

    

2020

    

2019

Balance at January 1

$

477

$

533

Revenue deferred for new extended warranty contracts

 

93

 

81

Amortization of deferred revenue

 

(115)

 

(128)

Other*

 

(9)

 

0

Balance at June 30

$

445

$

486

Current portion

$

216

$

225

Noncurrent portion

$

228

$

260

* Other primarily consists of foreign currency translation adjustments.