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Other Financial Data - Other Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Assets:
Defined benefit plan assets (Note 8)	$ 164	$ 365
Non-current contract cost assets (Note 2)	130	124	$ 105
Other	16	69
Other assets	$ 310	$ 558

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The aggregate carrying amount as of the balance sheet date of noncurrent assets not separately disclosed in the financial statements or notes thereto.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent.

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Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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Amount of noncurrent assets classified as other.

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