Share-Based Compensation (Summary Of Unvested Restricted Stock Awards, Performance-Based Restricted Stock Awards And Performance Share Units) (Details) shares in Thousands	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Restricted Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unvested at December 31, 2023 | shares	4,033
Granted, awards and units | shares	1,815
Vested, awards and units | shares	(1,277)
Forfeited, awards and units | shares	(25)
Unvested at March 31, 2024 | shares	4,546
Unvested weighted average grant-date fair value at December 31, 2023 | $ / shares	$ 42.1
Granted, weighted average grant-date fair value | $ / shares	42.29
Vested, weighted average grant-date fair value | $ / shares	38.64
Forfeited, weighted average grant-date fair value | $ / shares	44.84
Unvested weighted average grant-date fair value at March 31, 2024 | $ / shares	$ 43.13
Performance Share Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unvested at December 31, 2023 | shares	1,547
Granted, awards and units | shares	858
Vested, awards and units | shares	(1,226)
Forfeited, awards and units | shares	0
Unvested at March 31, 2024 | shares	1,179	[1]
Unvested weighted average grant-date fair value at December 31, 2023 | $ / shares	$ 43.25
Granted, weighted average grant-date fair value | $ / shares	40.41
Vested, weighted average grant-date fair value | $ / shares	18.08
Forfeited, weighted average grant-date fair value | $ / shares	0
Unvested weighted average grant-date fair value at March 31, 2024 | $ / shares	$ 67.38

[1] A maximum of 2.4 million common shares could be awarded based upon Devon’s final TSR ranking.