Trade and other receivables - Securitization liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Trade and other receivables, net
Current portion	$ 14	$ 17
Non-current portion	47	48
Total securitization liabilities	$ 61	$ 65

The amount of non-current portion of securitization liabilities at the end of the reporting period.

No definition available.

Name:	maxr_SecuritizationLiabilitiesNoncurrent
Namespace Prefix:	maxr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant