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Commitments (Tables)
3 Months Ended
Mar. 31, 2020
Commitments  
Changes in warranty liabilities

Standard Warranty Liability

(Dollars in millions)

    

2020

    

2019

Balance at January 1

$

113

$

118

Current period accruals

 

20

 

19

Accrual adjustments to reflect actual experience

 

(6)

 

(1)

Charges incurred

 

(26)

 

(29)

Balance at March 31

$

100

$

107

Extended Warranty Liability

(Dollars in millions)

    

2020

    

2019

Balance at January 1

$

477

$

533

Revenue deferred for new extended warranty contracts

 

40

 

36

Amortization of deferred revenue

 

(57)

 

(64)

Other*

 

(13)

 

(3)

Balance at March 31

$

447

$

503

Current portion

$

219

$

242

Noncurrent portion

$

228

$

261

* Other primarily consists of foreign currency translation adjustments.