Capital Stock (Tables)

12 Months Ended

Dec. 31, 2015

Class of Stock Disclosures [Abstract]

Rollforward Of Common Stock Activity [Table Text Block]

The following is a rollforward of shares of common stock for the three years ended December 31, 2015, 2014 and 2013:

	Common Stock
In thousands	Issued	Treasury
Balance at January 1, 2013	439,894	13
Issuance of stock for various plans, net	7,328	(533	)
Repurchase of stock	—	11,388
Balance at December 31, 2013	447,222	10,868
Issuance of stock for various plans, net	1,632	(4,668	)
Repurchase of stock	—	22,534
Balance at December 31, 2014	448,854	28,734
Issuance of stock for various plans, net	62	(4,230	)
Repurchase of stock	—	12,272
Balance at December 31, 2015	448,916	36,776