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Leases
 6 Months Ended
Jun. 30, 2020
Leases [Abstract]  
Leases Leases
Operating lease cost, which includes short-term leases and variable lease payments and approximates cash paid, was $18 and $22 in the second quarter of 2020 and 2019, respectively. Operating lease cost, which includes short-term leases and variable lease payments and approximates cash paid, was $36 and $43 in the first half of 2020 and 2019, respectively.
Operating lease right-of-use assets and lease liabilities in the Consolidated Balance Sheet were as follows:
June 30, 2020December 31, 2019
Right-of-use assets classified in Other noncurrent assets$118  $125  
Current portion of lease liabilities classified in Other current liabilities
36  38  
Long-term portion of lease liabilities classified in Other noncurrent liabilities91  98  
Total lease liabilities$127  $136