LONG-TERM DEBT - Debt Activity and Debt Maturities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	$ 24,391
Total repayments	3,964
Total borrowings at face value, ending balance	20,427	$ 24,391
0.000% loan due 2039 (CAD denominated)
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	18
Total borrowings at face value, ending balance	17	18
Other
Long-Term Debt Repayments [Roll Forward]
Total repayments	1
Senior notes | 5.875% senior notes due 2025
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	536
Total repayments	536
Total borrowings at face value, ending balance	$ 0	$ 536
Debt instrument interest rate stated percentage	5.875%	5.875%
Senior notes | 5.500% senior notes due 2025
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	$ 465
Total repayments	465
Total borrowings at face value, ending balance	$ 0	$ 465
Debt instrument interest rate stated percentage	5.50%	5.50%
Senior notes | 5.550% senior notes due 2026
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	$ 870
Total repayments	870
Total borrowings at face value, ending balance	$ 0	$ 870
Debt instrument interest rate stated percentage	5.55%	5.55%
Senior notes | 3.400% senior notes due 2026
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	$ 284
Total repayments	284
Total borrowings at face value, ending balance	$ 0	$ 284
Debt instrument interest rate stated percentage	3.40%	3.40%
Senior notes | Zero Coupon senior notes due 2036
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	$ 673
Total repayments	388
Total borrowings at face value, ending balance	285	$ 673
Secured Debt | Two-year term loan due 2026
Long-Term Debt Repayments [Roll Forward]
Total borrowings at face value, beginning balance	2,700
Total repayments	1,420
Total borrowings at face value, ending balance	$ 1,280	$ 2,700
Debt instrument interest rate stated percentage	5.475%	6.249%
Debt term	2 years	2 years
Secured Debt | 0.000% loan due 2039 (CAD denominated)
Long-Term Debt Repayments [Roll Forward]
Debt instrument interest rate stated percentage	0.00%	0.00%