COMPREHENSIVE LOSS - BALANCES INCLUDED IN AOCI, NET OF TAX, IN THE CONSOLIDATED BALANCE SHEETS (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ 1,961	$ 2,010	$ 1,943	$ 3,064	$ 3,258	$ 3,294	$ 1,943	$ 3,294
Total other comprehensive (loss) income, net of tax	(31)	18	71	39	(11)	(30)	58	(2)
Foreign currency translation related to acquisition of noncontrolling interests	0
Ending Balance	1,478	1,961	2,010	2,490	3,064	3,258	1,478	2,490
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(641)	(659)	(730)	(677)	(666)	(636)	(730)	(636)
Other comprehensive income (loss) before reclassifications and tax impact	(35)	(40)	54	12	(16)	8
Tax (expense) benefit	4	58	17	27	5	(38)
Other comprehensive income (loss), net of tax, before reclassifications	(31)	18	71	39	(11)	(30)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0	0	0
Total other comprehensive (loss) income, net of tax	(31)	18	71	39	(11)	(30)
Ending Balance	(672)	(641)	(659)	(638)	(677)	(666)	(672)	(638)
Foreign Currency Translation Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(426)	(532)	(619)	(545)	(535)	(473)	(619)	(473)
Other comprehensive income (loss) before reclassifications and tax impact	(6)	75	75	58	(14)	(34)
Tax (expense) benefit	(2)	31	12	17	4	(28)
Other comprehensive income (loss), net of tax, before reclassifications	(8)	106	87	75	(10)	(62)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0	0	0
Total other comprehensive (loss) income, net of tax	(8)	106	87	75	(10)	(62)
Foreign currency translation related to acquisition of noncontrolling interests
Ending Balance	(434)	(426)	(532)	(470)	(545)	(535)	(434)	(470)
Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(10)	(10)	(10)	(13)	(13)	(13)	(10)	(13)
Other comprehensive income (loss) before reclassifications and tax impact	0	0	0	0	0	0
Tax (expense) benefit	0	0	0	0	0	0
Other comprehensive income (loss), net of tax, before reclassifications	0	0	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0	0	0
Total other comprehensive (loss) income, net of tax	0	0	0	0	0	0
Foreign currency translation related to acquisition of noncontrolling interests
Ending Balance	(10)	(10)	(10)	(13)	(13)	(13)	(10)	(13)
Gain (Loss) on Net Investment and Fair Value Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(174)	(86)	(70)	(76)	(75)	(107)	(70)	(107)
Other comprehensive income (loss) before reclassifications and tax impact	(29)	(115)	(21)	(46)	(2)	42
Tax (expense) benefit	6	27	5	10	1	(10)
Other comprehensive income (loss), net of tax, before reclassifications	(23)	(88)	(16)	(36)	(1)	32
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0	0	0
Total other comprehensive (loss) income, net of tax	(23)	(88)	(16)	(36)	(1)	32
Foreign currency translation related to acquisition of noncontrolling interests
Ending Balance	(197)	(174)	(86)	(112)	(76)	(75)	(197)	(112)
Pension Liability Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(31)	(31)	(31)	(43)	(43)	(43)	(31)	(43)
Other comprehensive income (loss) before reclassifications and tax impact	0	0	0	0	0	0
Tax (expense) benefit	0	0	0	0	0	0
Other comprehensive income (loss), net of tax, before reclassifications	0	0	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0	0	0	0
Total other comprehensive (loss) income, net of tax	0	0	0	0	0	0
Foreign currency translation related to acquisition of noncontrolling interests
Ending Balance	$ (31)	$ (31)	$ (31)	$ (43)	$ (43)	$ (43)	$ (31)	$ (43)