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Commitments, Contingencies and Other Items (Tables)
 12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Right-of-way
At December 31, 2021, our future rental commitments and Right-of-Way agreements were as follows:
Right-of-Way Agreements
(Dollars in millions)
2022$21 
20236 
20246 
20255 
20265 
2027 and thereafter55 
Total future minimum payments
$98