Annual report pursuant to Section 13 and 15(d)

Leases - Income Statement Location Table (Details)

Leases - Income Statement Location Table (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Finance lease cost:      
Total lease cost $ 625    
Short-term lease cost 230    
Variable lease cost 7    
Operating leases, rent expense   $ 335 $ 199
Operating costs and expenses [Member]      
Lessee, Lease, Description [Line Items]      
Operating lease cost [1],[2] 612    
Depreciation and amortization expense [Member]      
Finance lease cost:      
Amortization of right-of-use assets 3    
Interest expense, net of capitalized interest [Member]      
Finance lease cost:      
Interest on lease liabilities $ 10    
Includes $230 million of short-term lease costs and $7 million of variable lease costs paid to the lessor.
Presented in cost of sales, operating and maintenance expense or selling, general and administrative expense consistent with the nature of the asset under lease.