Summary of Significant Accounting Policies - Adoption of New Accounting Policy (Details) - USD ($) $ in Millions	Jun. 30, 2022	Mar. 31, 2022	Jan. 01, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for adoption of new accounting guidance	$ 5,300	$ 5,030		$ 3,600	$ 2,544	$ 1,517	$ 1,680
Additional Paid-In Capital
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for adoption of new accounting guidance	8,442	8,433		8,531	8,519	8,513	8,517
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for adoption of new accounting guidance	$ 2,600	$ 2,171		464	$ (567)	$ (1,565)	$ (1,403)
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for adoption of new accounting guidance				(43)
Debt discount			$ 57
Deferred tax liabilities			14
Cumulative Effect, Period of Adoption, Adjustment | Additional Paid-In Capital
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for adoption of new accounting guidance			(100)	(100)
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for adoption of new accounting guidance			$ 57	$ 57