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 | ||||