Supplemental Cash Flow Disclosures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow [Line Items]
Interest paid	$ 189	$ 154	$ 143
Income taxes paid, net of (refunds received)	3	(116)	6
Cash disbursements for payment of taxes	(6)	(5)	(16)
Noncash software license acquisitions	24	130	$ 21
Other current liabilities
Supplemental Cash Flow [Line Items]
Short-term software license liabilities	68	64
Other deferred liabilities and credits
Supplemental Cash Flow [Line Items]
Long-term software license liabilities	$ 35	$ 76
Common Shares
Supplemental Cash Flow [Line Items]
Common Shares withheld (in shares)	347,000	154,000	438,000
Aggregate value of Common Shares withheld	$ 9	$ 5	$ 16