Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
Effective tax rate		29.00%	24.00%	21.00%
Gain on deconsolidation of Bakkt		$ 1,419	$ 0	$ 0
Deferred tax liability, equity method investment	$ 493	493	46
Valuation allowance	99	99	95	119	$ 119
Undistributed earnings	5,800	5,800
Unrecognized tax benefits that would impact effective tax rate	194	194	109
Increases in unrecognized tax benefits	35	35
Decrease in unrecognized tax benefits	36	36
Unrecognized tax benefits	229	229	188	103	$ 98
Income tax expense (benefit) for interest and penalties		10	6	$ 5
Unrecognized tax benefits, income tax penalties and interest accrued	49	49	39
Bakkt, LLC
Operating Loss Carryforwards [Line Items]
Gain on deconsolidation of Bakkt	1,400
Deferred tax liability, equity method investment	424	424
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	120	120	125
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	137	137	241
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	293	293	$ 276
Other Noncurrent Liabilities
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits	193	193
Unrecognized tax benefits, income tax penalties and interest accrued	20	20
Other Current Liabilities
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits	36	36
Unrecognized tax benefits, income tax penalties and interest accrued	$ 29	$ 29