Concentration of Credit Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Concentration Risk
Derivatives, Maximum exposure to credit loss	$ 208	$ 85
Construction related industries
Concentration Risk
Concentration, percent of total portfolio	40.00%	40.00%
North America
Concentration Risk
Concentration, percent of total portfolio	60.00%	50.00%