Share-Based Payments (Summary Of Nonvested Stock Units Activity) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Shares
Nonvested at beginning of period (in shares)	35,000
Granted (in shares)	21,000
Vested (in shares)	(28,000)
Forfeited (in shares)	(5,000)
Spin-off Adjustment (in shares)	13,000
Nonvested at end of period (in shares)	36,000
Weighted-Average Grant- Date Fair Value
Nonvested at beginning of period (in dollars per share) | $ / shares	$ 32.33
Granted (in dollars per share) | $ / shares	23.64
Vested (in dollars per share) | $ / shares	27.64
Forfeited (in dollars per share) | $ / shares	23.76
Nonvested at end of period (in dollars per share) | $ / shares	$ 22.07