The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Condensed Consolidated Financial Statement Details - Intangible Assets, Software and Impairments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	$ 545	$ 598	$ 1,102	$ 1,193
Property and Equipment
Finite-Lived Intangible Assets [Line Items]
Depreciation expense	64	68	137	133
Software
Finite-Lived Intangible Assets [Line Items]
Amortization expense	274	$ 231	561	$ 455
Platform Initiatives
Finite-Lived Intangible Assets [Line Items]
Software amortization expense	47		109
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, net	9,710		9,710
Trademarks and Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, net	$ 308		$ 308