Annual report pursuant to Section 13 and 15(d)

Leases - Supplemental Balance Sheet Information (Details)

v3.20.4
Leases - Supplemental Balance Sheet Information (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Leases    
Operating lease ROU assets (1) $ 371 $ 397
Operating lease ROU asset location us-gaap:OtherAssetsNoncurrent  
Current operating lease liabilities (2) $ 63 $ 64
Current operating lease location us-gaap:OtherLiabilitiesCurrent us-gaap:OtherLiabilitiesCurrent
Operating lease liabilities (3) $ 320 $ 349
Operating lease liabilities location us-gaap:OtherLiabilitiesNoncurrent us-gaap:OtherLiabilitiesNoncurrent
Total operating lease liabilities $ 383 $ 413
Property and equipment, at cost 2,989 2,806
Accumulated depreciation (1,689) (1,455)
Property and equipment, net 1,300 1,351
Current finance lease liabilities (2) $ 18 18
Finance lease current liabilities location us-gaap:OtherLiabilitiesCurrent  
Finance lease liabilities (3) $ 150 163
Finance lease liabilities location us-gaap:OtherLiabilitiesNoncurrent  
Total finance lease liabilities $ 168 181
Finance lease ROU assets    
Leases    
Property and equipment, at cost 278 282
Accumulated depreciation (141) (129)
Property and equipment, net $ 137 $ 153
Finance Lease ROU asset location us-gaap:PropertyPlantAndEquipmentNet