XML 87 R62.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
LEASES: (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Leases  
The weighted average remaining lease term 9 years
The weighted average discount rate 3.66%
Total lease expense $ 114.8
Short term lease costs 0.4
Maturities of lease liabilities  
2020 116.1
2021 116.0
2022 112.9
2023 111.6
2024 103.6
After 2024 826.3
Total lease payments 1,386.5
Less: interest on lease liabilities (340.1)
Lease liabilities 1,046.4
Cost of sales (exclusive of depreciation, amortization and depletion)  
Leases  
Total lease expense 114.4
Selling, general and administrative  
Leases  
Total lease expense 0.2
Exploration  
Leases  
Total lease expense $ 0.2
Minimum  
Leases  
Remaining lease terms 2 years
Maximum  
Leases  
Remaining lease terms 13 years