Earnings/(Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net income/(loss)	$ 735	$ (940)	$ 652	$ (1,177)	$ (205)	$ (525)
Basic weighted average shares outstanding (shares)	638		637		638	636
Dilutive effect of share-based awards (shares)	3		5		0	0
Diluted weighted average shares outstanding (shares)	641		642		638	636
Basic earnings/(loss) per share (USD per share)	$ 1.15		$ 1.02		$ (0.32)	$ (0.82)
Diluted earnings/(loss) per share (USD per share)	$ 1.15		$ 1.02		$ (0.32)	$ (0.82)