down to

See also: downto

English

Used other than figuratively or idiomatically: see down,‎ to.
I had to walk down to the ground floor.

Go down to the shops.
Ready to (do something specified).
Are you down to go to the cinema?
With no one/nothing remaining but.
I'm down to my last few sleeping pills.
Within the responsibility or influence of.
Synonym: up to

What type of person you become is down to you.

So I guess the cooking is now down to me.
Due to; because of.
The failure was down to total neglect.
- 1966, The Rolling Stones, Under My Thumb:
  It's down to me, the way she talks when she's spoken to / Down to me, the change has come, she's under my thumb.
- 2005, Stel Pavlou, Decipher:
  The intermittent signal dropout was down to a faulty connection which he'd fixed in seconds.
- 2011 May 16, James Mitchell Crow, “First signs of ozone-hole recovery spotted”, in Nature:
  That difficulty is down to significant natural variations in average Antarctic stratospheric springtime ozone levels from year to year
Including even the smallest parts.
We checked everything down to the last/smallest detail.