XML 87 R64.htm IDEA: XBRL DOCUMENT v3.10.0.1
Acquisitions and Divestitures - Future Amortization Expense (Details)
$ in Millions
Dec. 31, 2018
USD ($)
Business Acquisition [Line Items]  
2019 $ 70
2020 75
2021 75
2022 73
Acreage Dedication Contracts | Alpha Holding Company, LLC  
Business Acquisition [Line Items]  
2019 34
2020 42
2021 48
2022 $ 54