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Leases (Schedule of Right-of-use Assets and Lease Liabilities) (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Leases [Abstract]    
Right-of-use assets, finance lease $ 205 $ 211
Finance lease liabilities:    
Current lease liabilities, finance lease [1] 8 8
Long-term lease liabilities, finance lease 249 247
Total lease liabilities, finance lease 257 255
Right-of-use assets, operating lease 27 24
Operating lease liabilities:    
Current lease liabilities, operating lease [1] 17 18
Long-term lease liabilities, operating lease 10 5
Total lease liabilities, operating lease 27 23
Right-of-use assets 232 235
Lease liabilities:    
Current lease liabilities [1] 25 26
Long-term lease liabilities 259 252
Total lease liabilities $ 284 $ 278
[1] Current lease liabilities are included in other current liabilities on the consolidated balance sheets.