Shareholders' Equity - Common Stock Rollforward (Details) - shares					9 Months Ended	12 Months Ended
	Sep. 30, 2022	May 11, 2022	Mar. 31, 2022	Jun. 30, 2021	Sep. 30, 2022	Dec. 31, 2021
Increase (Decrease) in Stockholders' Equity
Common stock, shares issued, beginning balance (in shares)					108,987,650
Common shares, beginning balance (in shares)					107,758,376
Common stock acquired - share repurchase (in shares)	819,566	890,112	3,305,786	3,382,950	11,700,000	17,900,000
Share-based compensation programs (in shares)					1,100,000	1,400,000
Treasury Stock retirement (in shares)						0
Common stock, shares issued, ending balance (in shares)	110,730,556				110,730,556	108,987,650
Common shares, ending balance (in shares)	97,166,639				97,166,639	107,758,376
Common Stock
Increase (Decrease) in Stockholders' Equity
Common stock, shares issued, beginning balance (in shares)					109,000,000.0	143,300,000
Common shares, beginning balance (in shares)					107,800,000	124,200,000
Common shares issued (in shares)					0	100,000
Common stock acquired - share repurchase (in shares)					0	0
Share-based compensation programs (in shares)					1,700,000	2,400,000
Treasury Stock retirement (in shares)						(36,800,000)
Common stock, shares issued, ending balance (in shares)	110,700,000				110,700,000	109,000,000.0
Common shares, ending balance (in shares)						107,800,000
Treasury Stock
Increase (Decrease) in Stockholders' Equity
Common shares, held in treasury, beginning balance (in shares)					(1,200,000)	(19,100,000)
Common shares issued (in shares)					0	0
Common stock acquired - share repurchase (in shares)					11,700,000	17,900,000
Share-based compensation programs (in shares)					600,000	1,000,000.0
Treasury Stock retirement (in shares)						(36,800,000)
Common shares, held in treasury, ending balance (in shares)	13,500,000				13,500,000	(1,200,000)