Common Stock - Schedule of Stock by Class (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Issued, Balance at beginning of the Period	309,736
Treasury, Balance at beginning of the period	69,993
Outstanding, Balance at beginning of the period	239,743	230,939	219,001
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture	5,832	11,562	15,856
Employee taxes paid on withholding shares	(2,113)	(2,758)	(2,319)
Assets acquisition	240
Common stock repurchases	(853)		(1,599)
Issued, Balance at end of the period	315,808	309,736
Treasury, Balance at end of the period	72,959	69,993
Outstanding, Balance at the end of the prirod	242,849	239,743	230,939
Common Stock
Class of Stock [Line Items]
Issued, Balance at beginning of the Period	309,736	298,174	282,318
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture	5,832	11,562	15,856
Employee taxes paid on withholding shares	0	0	0
Assets acquisition	240
Common stock repurchases	0		0
Issued, Balance at end of the period	315,808	309,736	298,174
Treasury Stock
Class of Stock [Line Items]
Treasury, Balance at beginning of the period	69,993	67,235	63,317
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture	0	0	0
Employee taxes paid on withholding shares	(2,113)	(2,758)	(2,319)
Assets acquisition	0
Common stock repurchases	(853)		(1,599)
Treasury, Balance at end of the period	72,959	69,993	67,235