When you split your pension with your spouse, you will still see the full amount of the pension you received on your tax return as Pension Income on Line 115.
Then further down you will notice the amount you are splitting with your spouse is deducted in the next section to arrive at Net Income (Line 210 - Deduction for Split Pension Amount).
Your spouse will have one income entry on Line 116, as well as a credit for income tax deducted in the same percentage as the Pension Income Split.
This can be verified by going to View Detailed Tax Summary as seen in the image below.
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