EQUITY - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 14,525	$ 16,746	$ 18,242
Other comprehensive income (loss) before reclassifications	151	(293)
Amounts reclassified from accumulated other comprehensive loss	20	55
Deferred taxes	4	(43)
Other comprehensive income (loss)	175	(281)	(151)
Less: Other comprehensive loss attributable to noncontrolling interests	0	(3)	(16)
Less: Reallocation of AOCL based on change in ownership of BHH LLC Units		308
Ending balance	15,519	14,525	16,746
Foreign Currency Translation Adjustment, Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(2,666)	(2,125)
Other comprehensive income (loss) before reclassifications	153
Amounts reclassified from accumulated other comprehensive loss	0
Deferred taxes	0
Other comprehensive income (loss)	153
Ending balance	(2,513)	(2,666)	(2,125)
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive income (loss) before reclassifications		(294)
Amounts reclassified from accumulated other comprehensive loss		25
Deferred taxes		0
Other comprehensive income (loss)		(269)
Foreign Currency Translation Adjustment, Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Less: Other comprehensive loss attributable to noncontrolling interests		(3)
Less: Reallocation of AOCL based on change in ownership of BHH LLC Units		275
Cash Flow Hedges, Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(9)	(10)
Other comprehensive income (loss) before reclassifications	12
Amounts reclassified from accumulated other comprehensive loss	(8)
Deferred taxes	(1)
Other comprehensive income (loss)	3
Ending balance	(6)	(9)	(10)
Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive income (loss) before reclassifications		(1)
Amounts reclassified from accumulated other comprehensive loss		3
Deferred taxes		0
Other comprehensive income (loss)		2
Cash Flow Hedges, Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Less: Other comprehensive loss attributable to noncontrolling interests		0
Less: Reallocation of AOCL based on change in ownership of BHH LLC Units		1
Benefit Plans, Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(296)	(250)
Other comprehensive income (loss) before reclassifications	(14)
Amounts reclassified from accumulated other comprehensive loss	28
Deferred taxes	5
Other comprehensive income (loss)	19
Ending balance	(277)	(296)	(250)
Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive income (loss) before reclassifications		2
Amounts reclassified from accumulated other comprehensive loss		27
Deferred taxes		(43)
Other comprehensive income (loss)		(14)
Benefit Plans, Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Less: Other comprehensive loss attributable to noncontrolling interests		0
Less: Reallocation of AOCL based on change in ownership of BHH LLC Units		32
Accumulated Other Comprehensive Loss
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(2,971)	(2,385)	(1,778)
Other comprehensive income (loss)	175	(278)	(135)
Ending balance	$ (2,796)	$ (2,971)	$ (2,385)