Goodwill, Customer Relationships and Other Intangible Assets - Additional Information (Details)						3 Months Ended	12 Months Ended
	Oct. 31, 2023 USD ($) reporting_unit	Oct. 31, 2022 USD ($) reporting_unit	Oct. 31, 2021 USD ($) derivative_agreement	Jul. 31, 2021 USD ($) reporting_unit	Jan. 31, 2021 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) segement	Dec. 31, 2023 USD ($) reporting_unit	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets, gross (including goodwill)							$ 15,800,000,000	$ 15,800,000,000	$ 15,800,000,000	$ 15,800,000,000	$ 15,800,000,000
Impairment of indefinite-lived intangible assets								0				$ 0
Number of reportable segments									2		2
Number of reporting units	3	4	5	5						3
Finite-Lived Intangible Assets [Line Items]
Control premium (as a percent)	2.00%	59.00%
Goodwill impairment	$ 1,900,000,000		$ 0	$ 0	$ 0	$ 8,800,000,000		10,693,000,000				3,271,000,000	$ 0
Acquired finite-lived intangible assets, weighted average useful life (in years)							6 years
Amortization of intangible assets								$ 1,100,000,000				$ 1,100,000,000	$ 1,300,000,000
Number of reporting units	3	4	5	5						3
Disposal Group, Held-for-sale, Not Discontinued Operations | EMEA Business
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 43,000,000
Measurement Input, Revenue Multiple
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment, measurement input (as a percent)		2.5
Measurement Input, EBITDA Multiple
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment, measurement input (as a percent)		5.5
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)							7 years
Capitalized Software
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)							4 years
Minimum | Measurement Input, Revenue Multiple
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment, measurement input (as a percent)	1.5	1.8				1.5
Minimum | Measurement Input, EBITDA Multiple
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment, measurement input (as a percent)	4.8	4.7				4.6
Maximum | Measurement Input, Revenue Multiple
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment, measurement input (as a percent)	3.5	4.6				4.3
Maximum | Measurement Input, EBITDA Multiple
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment, measurement input (as a percent)	8.4	10.8				10.5
Mass Markets
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 0
Goodwill, impairment (as a percent)		97.00%	277.00%	150.00%
NA Business
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 3,200,000,000
Goodwill, impairment (as a percent)			8.00%	24.00%
EMEA
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 0
Goodwill, impairment (as a percent)		171.00%	57.00%	58.00%
Latin America
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment (as a percent)			100.00%	100.00%
APAC
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 0
Goodwill, impairment (as a percent)		101.00%	125.00%	134.00%