XML 69 R56.htm IDEA: XBRL DOCUMENT v3.20.2
Debt (Schedule of Long-term Debt) (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Long-Term Debt    
Finance Lease, Liability $ 201 $ 144
Subtotal 3,584 3,455
Unamortized debt issuance costs [1] (15) (18)
Current installments of long-term debt (429) (28)
Total 3,140 3,409
Senior Unsecured Notes Due 2021 [Member]    
Long-Term Debt    
Senior unsecured debt $ 400 400
Interest rate 5.875%  
Senior Unsecured Notes Due 2022 [Member]    
Long-Term Debt    
Senior unsecured debt $ 500 500
Interest rate 4.625%  
Senior Unsecured Notes Due 2023 [Member]    
Long-Term Debt    
Senior unsecured debt $ 877 841
Interest rate 1.125%  
Senior Unsecured Notes Due 2024 [Member]    
Long-Term Debt    
Senior unsecured debt $ 499 499
Interest rate 3.50%  
Senior Unsecured Notes Due 2025 [Member]    
Long-Term Debt    
Senior unsecured debt $ 351 337
Interest rate 1.25%  
Senior Unsecured Notes Due 2027 [Member]    
Long-Term Debt    
Senior unsecured debt $ 582 558
Interest rate 2.125%  
Refunding loan for pollution control and industrial revenue bonds [Member]    
Long-Term Debt    
Other long-term debt $ 166 $ 167
Loans Payable [Member]    
Debt Instrument [Line Items]    
Long-term Debt, Weighted Average Interest Rate, at Point in Time 1.30% 1.30%
Long-Term Debt    
Other long-term debt [2] $ 8 $ 9
Minimum [Member] | Refunding loan for pollution control and industrial revenue bonds [Member]    
Long-Term Debt    
Interest rate 4.05%  
Maximum [Member] | Refunding loan for pollution control and industrial revenue bonds [Member]    
Long-Term Debt    
Interest rate 5.00%  
[1] Related to the Company's long-term debt, excluding obligations under finance leases.
[2] The weighted average interest rate was 1.3% and 1.3% as of September 30, 2020 and December 31, 2019, respectively.