STATEMENTS OF CONSOLIDATED CASH FLOWS (Parenthetical)	Dec. 31, 2021	May 31, 2021	Dec. 31, 2020	May 01, 2020	Apr. 28, 2020	Dec. 31, 2019	Nov. 26, 2019	May 15, 2016
5.875% Senior Notes | Senior Notes
Debt instrument contractual rate (percent)						5.875%		5.875%
4.50% Senior Notes | Senior Notes
Debt instrument contractual rate (percent)	4.50%	4.50%
4.625% Senior Notes | Senior Notes
Debt instrument contractual rate (percent)						4.625%	4.625%
6.50% Senior Notes
Debt instrument contractual rate (percent)				6.50%	6.50%
6.50% Senior Notes | Senior Notes
Debt instrument contractual rate (percent)	6.50%		6.50%