Total Equity and Other Comprehensive Income (Dividends per Share) (Details) - $ / shares		3 Months Ended		9 Months Ended
	Oct. 03, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Subsequent Event [Member]
Class of Stock [Line Items]
Cash dividends declared, Common, per share (in dollars per share)	$ 1.15
Common Stock, par value $5.00
Class of Stock [Line Items]
Cash dividends declared, Common, per share (in dollars per share)		$ 1.15	$ 0.95	$ 3.05	$ 2.45
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)		0.45	0.45	1.35	1.35
Series O Preferred Stock [Member]
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)		3,375	3,375	6,750	6,750
Series P Preferred Stock [Member]
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)		1,531	1,531	4,594	4,594
Series Q Preferred Stock [Member]
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)		$ 1,343	$ 1,343	4,031	4,031
Series R Preferred Stock [Member]
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)				2,425	2,425
Series S Preferred Stock [Member]
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)				$ 2,500	$ 2,500