Share-Based Compensation (Summary of Stock Options, RSUs and PSUs) (Details) shares in Thousands	6 Months Ended
	Jun. 30, 2016 shares
Stock Options
Stock option activity
Outstanding at the beginning of the period (in shares)	75,700
Granted (in shares)	5,600
Exercised/released (in shares)	(3,700)
Forfeited (in shares)	(1,200)
Outstanding at the end of the period (in shares)	76,400
Restricted Stock Units
Restricted and Performance-Based Restricted Stock Units
Nonvested at the beginning of the period, share equivalent	7,700
Granted, share equivalent	1,300
Exercised, share equivalent	(2,500)
Forfeited, share equivalent	(200)
Nonvested at the end of the period, share equivalent	6,300
Performance- Based Restricted Stock Units
Restricted and Performance-Based Restricted Stock Units
Nonvested at the beginning of the period, share equivalent	334
Granted, share equivalent	203
Exercised, share equivalent	(72)
Forfeited, share equivalent	(22)
Nonvested at the end of the period, share equivalent	443