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Leases (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Lessee, Lease, Description [Line Items]        
ROU assets impairment loss $ 1 $ 5 $ 2 $ 13
Lessee, operating lease, lease not yet commenced, amount $ 25   $ 25  
Minimum        
Lessee, Lease, Description [Line Items]        
Lessee, operating lease, term of contract (in years) 10 years   10 years  
Maximum        
Lessee, Lease, Description [Line Items]        
Lessee, operating lease, term of contract (in years) 25 years   25 years