Supplemental Information (Earnings Per Share) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share Reconciliation [Abstract]
Weighted-average Common Shares Outstanding – Basic	258,400,000	257,300,000	258,200,000	255,900,000
Assumed settlement of performance share units and restricted stock units	900,000	1,300,000	1,000,000.0	1,300,000
Dilutive effect of forward sale agreements	200,000	0	100,000	0
Weighted-average Common Shares Outstanding – Diluted	259,500,000	258,600,000	259,300,000	257,200,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	0	0	0