Which company reportedly spent the highest amount (over $1 billion) on their logo redesign and comprehensive rebranding initiative?

In the world of corporate branding, some redesigns cost astronomical sums. Beyond just creating new logos, these comprehensive rebrands involve market research, global implementation, signage changes, packaging updates, and extensive marketing campaigns. But which company spent the most on their rebrand? Test your knowledge of high-stakes corporate identity transformations that made headlines in the business world.

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BP (British Petroleum) with their 'Helios' sunflower logo in 2000
Pepsi with their 'minimalist smile' logo redesign in 2008
Mastercard with their overlapping circles rebrand in 2016
Microsoft with their four-color window logo update in 2012