Legal Proceedings (Details) $ in Millions	Nov. 12, 2021 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Trial Court, plaintiff award	$ 690
Trial Court, plaintiff award, plus pre-judgement interest	$ 166

Trial Court, Plaintiff Award, Plus Pre-Judgement Interest

No definition available.

Name:	l_TrialCourtPlaintiffAwardPlusPreJudgementInterest
Namespace Prefix:	l_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant