Income Taxes (Details) € in Millions, $ in Millions		3 Months Ended		12 Months Ended
	Oct. 04, 2017 EUR (€)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes		$ (1,422)	$ 2,156
Discrete tax benefits		2,100	349
Cash paid for income taxes, net of refunds		453	$ 801	$ 3,340	$ 2,209
Tax contingencies		$ 3,300		$ 3,300		$ 3,200
Luxembourg Tax Administration | Foreign Tax Authority
Income Tax Examination [Line Items]
Tax examination, estimate of additional tax expense | €	€ 250