Shareholders' Equity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Common stock par value (in dollars per share)	$ 1	$ 1
Common Stock
Class of Stock [Line Items]
Common Shares Authorized (in shares)	1,800,000,000
Common Shares Issued (in shares)	773,000,000
Common Shares Outstanding (in shares)	773,000,000
Common stock, number of votes per share	$ 1
Preferred Stock
Class of Stock [Line Items]
Preferred Shares Authorized (in shares)	25,000,000
Preferred Shares Issued (in shares)	0
Preferred Shares Outstanding (in shares)	0