Shareholders' Equity - Share Repurchases (Details) - USD ($)	Dec. 31, 2021	Dec. 09, 2021	Nov. 02, 2016
2021 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized		$ 10,000,000,000.0
Remaining as of December 31, 2021	$ 10,000,000,000.0
2016 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized			$ 15,000,000,000.0
Remaining as of December 31, 2021	$ 0