Share-Based Payments (Summary Of Nonvested Stock Units Activity) (Details) shares in Millions	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Shares
Nonvested at beginning of period (in shares) | shares	28
Granted (in shares) | shares	37
Vested (in shares) | shares	(25)
Forfeited (in shares) | shares	(3)
Nonvested at end of period (in shares) | shares	37
Weighted-Average Grant- Date Fair Value
Nonvested at beginning of period (in dollars per share) | $ / shares	$ 20.05
Granted (in dollars per share) | $ / shares	18.68
Vested (in dollars per share) | $ / shares	18.42
Forfeited (in dollars per share) | $ / shares	18.55
Nonvested at end of period (in dollars per share) | $ / shares	$ 19.88