CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares outstanding (shares)		123.194
Stockholders' Equity Attributable to Parent at Dec. 31, 2018	$ 3,751,000	$ 1,000	$ 232,000	$ (568,000)	$ (448,000)	$ 4,534,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	4,000					4,000
Other Comprehensive Income (Loss), Net of Tax	15,000				15,000
Stock repurchased during period (shares)		(0.215)
Stock Repurchased During Period, Value	(13,000)		0	(13,000)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	12,000		12,000
Dividends, Cash	$ (43,000)					(43,000)
Cash dividend declared per share (usd per share)	$ 0.35
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0.391
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		0.134
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 20,000		20,000
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	3,000		3,000
Stockholders' Equity Attributable to Parent at Mar. 31, 2019	$ 3,746,000	$ 1,000	261,000	(581,000)	(433,000)	4,498,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares outstanding (shares)		123.504
Common stock, shares outstanding (shares)	123,000,307	123.000
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	$ 4,331,000	$ 1,000	305,000	(643,000)	(465,000)	5,133,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(232,000)					(232,000)
Other Comprehensive Income (Loss), Net of Tax	$ (17,000)				(17,000)
Stock repurchased during period (shares)		(0.538)
Stock Repurchased During Period, Value			0	(31,000)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition			9,000
Dividends, Cash						(45,000)
Cash dividend declared per share (usd per share)	$ 0.375
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		0.123
Stock Issued During Period, Value, Employee Stock Purchase Plan			0
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			0
Stockholders' Equity Attributable to Parent at Mar. 31, 2020	$ 4,015,000	$ 1,000	$ 314,000	$ (674,000)	$ (482,000)	$ 4,856,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares outstanding (shares)	122,585,013	122.585