Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 695	$ 735	$ (940)	$ 1,212	$ 652	$ (1,177)	$ 489	$ 688
Basic weighted average shares outstanding (shares)	638			637			638	636
Dilutive effect of share-based awards (shares)	3			4			3	5
Diluted weighted average shares outstanding (shares)	641			641			641	641
Basic earnings/(loss) per share (USD per share)	$ 1.09			$ 1.90			$ 0.77	$ 1.08
Diluted earnings/(loss) per share (USD per share)	$ 1.08			$ 1.89			$ 0.76	$ 1.07

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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