Equity (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Increase (Decrease) In Common Stock [Roll Forward]
Total common stock shares issued beginning balance	501,237,055	496,958,000	492,797,000
Employee benefits and compensation plans (in shares)	3,284,000	4,279,000	4,160,000
Total common stock shares issued ending balance	504,521,535	501,237,055	496,958,000
Treasury stock beginning balance	(126,562,640)	(122,626,000)	(87,898,000)
Repurchase of common stock (in shares)	(40,018,000)	(3,937,000)	(34,728,000)
Treasury stock ending balance	(166,580,899)	(126,562,640)	(122,626,000)
Common stock, shares outstanding (in shares)	337,940,636	374,674,415	374,332,000	349,599,000	362,639,000	371,805,000	373,857,000	373,837,000	373,155,000