XML 81 R44.htm IDEA: XBRL DOCUMENT v3.20.1
Investments (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Short-term investments:      
Equity investment security $ 27 $ 26  
Held-to-maturity investment securities   287 $ 321
Time Deposits 48 466  
Total short-term investments 396 779  
Long-term investments:      
Restricted investments   414  
Long-term Investments, Total 433 17  
Payments to Acquire Equity Method Investments 26    
Equity Method Investments 37 9  
Cost Method Investments 3 8  
AAA | Corporate And Other Debt Securities [Member]      
Short-term investments:      
Held-to-maturity investment securities 116    
AA+ | Corporate And Other Debt Securities [Member]      
Short-term investments:      
Held-to-maturity investment securities 30    
Long-term investments [Member]      
Long-term investments:      
Equity and Cost Method Investments 40 17  
Restricted investments $ 393    
Short-term Investments [Member]      
Long-term investments:      
Restricted investments   $ 414