Capital Stock - Dividends (Details) - $ / shares	3 Months Ended						6 Months Ended	12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Dec. 31, 2021
Equity [Abstract]
Quarterly cash dividends paid (in dollars per share)	$ 0.21	$ 0.20	$ 0.19	$ 0.18	$ 0.17	$ 0.16	$ 0.41	$ 0.70
Quarterly cash dividends declared (in dollars per share)	$ 0.21	$ 0.20	$ 0.19	$ 0.18	$ 0.17	$ 0.16	$ 0.41	$ 0.70