v3.20.1
Financial Instruments and Fair Value Measures - Short-Term Borrowings (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Mar. 31, 2019
May 31, 2018
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Short-Term Borrowings          
Short-term borrowings     $ 6   $ 0
Proceeds from commercial paper borrowings issued     0    
Repayments of other short-term borrowings     0 $ 3,000  
Commercial paper          
Short-Term Borrowings          
Short-term borrowings     $ 0   $ 0
Weighted-average interest rate on commercial paper (as a percent) 2.80%     2.80%  
Term loan facilities | May 2018 term loan credit agreement          
Short-Term Borrowings          
Repayments of other short-term borrowings $ 3,000        
Term loan credit agreement term   364 days