Quarterly report pursuant to Section 13 or 15(d)

Leases - Income Statement Location Table (Details)

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Leases - Income Statement Location Table (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Finance lease cost:    
Total lease cost $ 144 $ 140
Short-term lease cost 35 47
Variable lease cost 5 5
Operating costs and expenses [Member]    
Lessee, Lease, Description [Line Items]    
Operating lease cost [1],[2] 141 137
Depreciation and amortization expense [Member]    
Finance lease cost:    
Amortization of right-of-use assets 1 1
Interest expense, net of capitalized interest [Member]    
Finance lease cost:    
Interest on lease liabilities $ 2 $ 2
[1]
Includes $35 million and $47 million of short-term lease costs during the three months ended March 31, 2020 and 2019, respectively, and $5 million of variable lease costs paid to the lessor during each of the three months ended March 31, 2020 and 2019.
[2]
Presented in cost of sales, operating and maintenance expense or selling, general and administrative expense consistent with the nature of the asset under lease.