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Revenue (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Change in Contract with Customer, Asset [Abstract]
Beginning balance	$ 117	$ 125
Additions, net	78	63
Billings transferred to accounts receivable	(74)	(61)
Other	0	(4)
Ending balance	121	123
Change in Contract with Customer, Liability [Abstract]
Beginning balance	166	164
Additions, net	99	97
Revenue recognized from opening balance	(93)	(75)
Other	(1)	(3)
Ending balance	$ 171	$ 183

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Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

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