Segment Information - Reconciliation (Details) - USD ($)					3 Months Ended	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2021	Jul. 31, 2021	Jan. 31, 2021	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Depreciation and amortization						$ (2,985,000,000)	$ (3,239,000,000)	$ (4,019,000,000)
Goodwill impairment	$ (1,900,000,000)	$ 0	$ 0	$ 0	$ (8,800,000,000)	(10,693,000,000)	(3,271,000,000)	0
Stock-based compensation						(52,000,000)	(98,000,000)	(120,000,000)
OPERATING (LOSS) INCOME						(9,584,000,000)	95,000,000	4,285,000,000
Total other expense, net						(653,000,000)	(1,086,000,000)	(1,584,000,000)
(Loss) income before income taxes						(10,237,000,000)	(991,000,000)	2,701,000,000
Income tax expense						61,000,000	557,000,000	668,000,000
NET (LOSS) INCOME						(10,298,000,000)	(1,548,000,000)	2,033,000,000
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment adjusted EBITDA						8,754,000,000	11,259,000,000	13,088,000,000
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Depreciation and amortization						(2,985,000,000)	(3,239,000,000)	(4,019,000,000)
Goodwill impairment						(10,693,000,000)	(3,271,000,000)	0
Other unallocated expense						(4,608,000,000)	(4,556,000,000)	(4,664,000,000)
Stock-based compensation						(52,000,000)	(98,000,000)	(120,000,000)
OPERATING (LOSS) INCOME						(9,584,000,000)	95,000,000	4,285,000,000
Total other expense, net						$ (653,000,000)	$ (1,086,000,000)	$ (1,584,000,000)