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Redeemable Stock of Subsidiary - Schedule of Changes in Redeemable Stock of Subsidiary (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Increase (Decrease) in Temporary Equity [Roll Forward]        
Beginning balance $ 1,629 $ 1,567 $ 1,696 $ 1,529
Net income attributable to preferred units 5 39 47 77
Redemption of preferred units (1,634) 0 (1,743) 0
Ending balance $ 0 $ 1,606 $ 0 $ 1,606