v3.26.1
Stockholders' Deficit - Schedule of Stockholders' Deficit (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Class of Stock [Line Items]        
Equity, beginning balance $ (1,225) $ (1,159) $ (1,693) $ (1,676)
Redeemable Noncontrolling Interests, beginning balance   322    
Comprehensive income (loss) 89 (36) 308 15
Distributions to noncontrolling interests (24) (24) (28) (25)
Disposition of less-than-wholly owned entity   (4) (7) (8)
Adjustment to redemption value of redeemable noncontrolling interests (6) (3) 5 (2)
Cancellation of restricted stock for tax withholdings on vested shares   (2)   (1)
Stock-based compensation 2 3 3 4
Equity, ending balance (1,164) (1,225) (1,412) (1,693)
Redeemable Noncontrolling Interests, ending balance 320      
Redeemable Noncontrolling Interests (Non- Equity)        
Class of Stock [Line Items]        
Redeemable Noncontrolling Interests, beginning balance 260 322 364 359
Comprehensive income (loss) 13 11 14 13
Contributions from noncontrolling interests     1  
Distributions to redeemable noncontrolling interests (9) (33) (33) (10)
Noncontrolling interests in acquired entity 51      
Disposition of less-than-wholly owned entity (1) (41) (27)  
Adjustment to redemption value of redeemable noncontrolling interests 6 1 (5) 2
Redeemable Noncontrolling Interests, ending balance 320 260 314 364
Common Stock        
Class of Stock [Line Items]        
Equity, beginning balance 1 1 1 1
Equity, ending balance 1 1 1 1
Additional Paid-in Capital        
Class of Stock [Line Items]        
Equity, beginning balance 2,183 2,185 2,176 2,175
Adjustment to redemption value of redeemable noncontrolling interests (6) (3) 5 (2)
Cancellation of restricted stock for tax withholdings on vested shares   (2)   (1)
Stock-based compensation 2 3 3 4
Equity, ending balance 2,179 2,183 2,184 2,176
Accumulated Other Comprehensive (Loss) Income        
Class of Stock [Line Items]        
Equity, beginning balance (10) (9) (7) (10)
Comprehensive income (loss) (1) (1) 2 3
Equity, ending balance (11) (10) (5) (7)
Accumulated Deficit        
Class of Stock [Line Items]        
Equity, beginning balance (3,628) (3,571) (4,093) (4,080)
Comprehensive income (loss) 69 (57) 282 (13)
Equity, ending balance (3,559) (3,628) (3,811) (4,093)
Noncontrolling Interest        
Class of Stock [Line Items]        
Equity, beginning balance 229 235 230 238
Comprehensive income (loss) 21 22 24 25
Distributions to noncontrolling interests (24) (24) (28) (25)
Disposition of less-than-wholly owned entity   (4) (7) (8)
Equity, ending balance $ 226 $ 229 $ 219 $ 230