Best-selling international (non-Japanese) albums ever (Oricon) *no imports
Ranking | Sales (Millions) | Album | Artist | Peak position | Year
1 - 2,809,000 #1s Mariah Carey One 1998/11
2 - 2,300,000 ~ Best of Carpenters Radiance of Youth Carpenters Three 1995/11
3 - 2,203,000 Daydream Mariah Carey One 1995/9
4 - 2,083,000 Merry Christmas Mariah Carey One 1994/10
5 - 1,964,000 The Beatles 1 The Beatles One 2000/11
6 - 1,882,000 Bodyguard Whitney Houston One 1992/12
7 - 1,616,000 Thriller Michael Jackson One 1982/12
8 - 1,589,000 Music Box Mariah Carey One 1993/9
9 - 1,561,000 Scatman's World Scatman John Two 1995/8
10 - 1,418,000 Titanic - Five 1998/2
11 - 1,343,000 Queen Jewels Queen One 2004/1
12 - 1,249,000 VALENTI BoA One 2003/1
13 - 1,246,000 The Very Best Celine Dion One 1999/11
14 - 1,226,000 200 km/h in the Wrong Lane tATu One 2003/3
15 - 1,150,000 Crossroads Bon Jovi One 1994/10
16 - 1,136,000 Let Go Avril Lavigne Six 2002/7
17 - 1,099,000 BEST OF SOUL BoA One 2005/2
18 - 1,031,000 Let's Talk About Love Celine Dion Five 1997/11
19 - 1,029,000 Under My Skin Avril Lavigne One 2004/5
20 - 1,025,000 Butterfly Mariah Carey One 1997/9
This is the most recent list/ranking I have found.