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Stockholders' Equity (Narratives) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Components of AOCI
Unrecognized net actuarial loss	$ (835)
Unrecognized net prior service credit	$ (2)

X

- Definition

Amount, before tax, after reclassification adjustment, of increase (decrease) in accumulated other comprehensive income from gain (loss) of defined benefit plan.

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