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Fair Value of Financial Instruments (Tables)
 3 Months Ended
Mar. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of Financial Assets Measured at Fair Value on Recurring Basis
The following tables present our financial assets and financial liabilities that are measured at fair value on a recurring basis as of March 31, 2020 and December 31, 2019.
 
March 31, 2020December 31, 2019
 
Total
Level 1
Level 2
Level 3
Total
Level 1
Level 2
Level 3
(in millions)
(in millions)
Assets at Fair Value
Debt securities:
European government
$149  $149  $—  $—  $157  $157  $—  $—  
Corporate
52  —  52  —  34  —  34  —  
State owned enterprises and municipalities
35  —  35  —  24  —  24  —  
Swedish mortgage bonds
18  —  18  —  19  —  19  —  
Time deposits—  —  —  —  57  —  57  —  
Total assets at fair value$254  $149  $105  $—  $291  $157  $134  $—