Debt - FV, Maturities, etc. (Details) $ in Billions	Dec. 31, 2022	Aug. 31, 2020	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Long term debt value
Leverage ratio, maximum			4.5
Forecast
Long term debt value
Leverage ratio, maximum	4.5
Subsequent Event.
Long term debt value
Leverage ratio, maximum		5.0
Level 2
Long term debt value
Fair value of the long-term debt			$ 7.4	$ 8.3