Stock-Based Compensation (Summary Of Nonvested Shares) (Details)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Performance Share Units | Market Condition PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares issued per share unit, minimum	0.00%
Percentage of shares issued per share unit, maximum	200.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1, 2024(c) | shares	761,712
Granted | shares	314,456
Forfeitures | shares	(46,636)
Dividend equivalents | shares	27,508
Vested and distributed | shares	(248,090)
Outstanding at December 31, 2024(c) | shares	808,950
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted-average Fair Value per Unit, Nonvested at beginning of year (in dollars per share) | $ / shares	$ 89.22
Fair value of share units awarded | $ / shares	56.73
Weighted-average Fair Value per Unit, Unearned or forfeited (in dollars per share) | $ / shares	73.97
Weighted-average Fair Value per Unit, Dividend Equivalent (in dollars per share) | $ / shares	77.74
Weighted-average Fair Value per Unit, Vested and distributed (in dollars per share) | $ / shares	87.10
Weighted-average Fair Value per Unit, Nonvested at end of year (in dollars per share) | $ / shares	$ 77.73
Performance Share Units | Performance Condition PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares issued per share unit, minimum	0.00%
Percentage of shares issued per share unit, maximum	200.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1, 2024(c) | shares	112,391
Granted | shares	51,938
Forfeitures | shares	(7,691)
Dividend equivalents | shares	4,127
Vested and distributed | shares	(39,768)
Outstanding at December 31, 2024(c) | shares	120,997
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted-average Fair Value per Unit, Nonvested at beginning of year (in dollars per share) | $ / shares	$ 83.36
Fair value of share units awarded | $ / shares	68.83
Weighted-average Fair Value per Unit, Unearned or forfeited (in dollars per share) | $ / shares	77.22
Weighted-average Fair Value per Unit, Dividend Equivalent (in dollars per share) | $ / shares	79.03
Weighted-average Fair Value per Unit, Vested and distributed (in dollars per share) | $ / shares	78.11
Weighted-average Fair Value per Unit, Nonvested at end of year (in dollars per share) | $ / shares	$ 79.09
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1, 2024(c) | shares	377,864
Granted | shares	159,050
Forfeitures | shares	(29,330)
Dividend equivalents | shares	13,580
Vested and distributed | shares	(125,644)
Outstanding at December 31, 2024(c) | shares	395,520
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted-average Fair Value per Unit, Nonvested at beginning of year (in dollars per share) | $ / shares	$ 83.82
Fair value of share units awarded | $ / shares	69.09
Weighted-average Fair Value per Unit, Unearned or forfeited (in dollars per share) | $ / shares	79.59
Weighted-average Fair Value per Unit, Dividend Equivalent (in dollars per share) | $ / shares	79.59
Weighted-average Fair Value per Unit, Vested and distributed (in dollars per share) | $ / shares	78.58
Weighted-average Fair Value per Unit, Nonvested at end of year (in dollars per share) | $ / shares	$ 79.73