Quarterly report pursuant to Section 13 or 15(d)

Assets And Liabilities Measured At Fair Value (Details)

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Assets And Liabilities Measured At Fair Value (Details) - Recurring - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Assets and Liabilities Measured at Fair Value    
Cash equivalents $ 1,668 $ 992
Debt and equity securities 231 353
Financial instrument assets 214 498
Debt 3,237 3,678
Financial instruments liabilities 121 53
Level 1    
Assets and Liabilities Measured at Fair Value    
Cash equivalents 1,668 992
Debt and equity securities 178 242
Financial instrument assets 31 29
Level 2    
Assets and Liabilities Measured at Fair Value    
Debt and equity securities 53 111
Financial instrument assets 183 469
Debt 3,237 3,678
Financial instruments liabilities $ 121 $ 53