Equity Equity Repurchase Activity (Tables)

9 Months Ended

Sep. 30, 2019

Equity [Abstract]

Class of Treasury Stock [Table Text Block]

Equity Repurchase Activity and Remaining Repurchase Capacity
Three months ended	Common Shares Repurchased	Cost of Shares Repurchased		Average Price Paid per Share		Remaining Capacity Under Share Repurchase Authorization
(In millions, except for per share data)
June 30, 2019	0.5	$	27	$	53.84	$	973
September 30, 2019	1.1	$	63	$	58.50	$	910
Total	1.6	$	90