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UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Current assets:    
Accounts receivable, allowance for credit losses $ 38 $ 35
Redeemable preferred limited partner interests:    
Series A cumulative convertible preferred units outstanding (in units) 50,594 50,412
Partners' equity:    
Common units issued (in units) 2,167,752,040 2,168,245,238
Common units outstanding (in units) 2,167,752,040 2,168,245,238