How to display the beginning balance read from the data file?

Okay so everytime i run the code and creates an infinite loop, but within that infinite loop the balance is displaying this huge number:

Balance = $-92559631349317830736831783200707727132248687965119994463780864.00
when i need it to display
Balance = 2000


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// Author:		
// Source file:	
// Description:	
// Compiler used:	

#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;

struct records
{
	int code;
	double amount;
};
// Function Prototypes
void displayTitle();
double getBegBal(ifstream&);
void displayBal(records);
records getData(ifstream&);
double processCheck(double, double);
double processDeposit(double, double);
double processATM(double, double);
double processSvcChg(double);


//Global Constants
const double	CHARGE = 10,
ATMFEE = 2;

int main()
{
	//Variable Declarations
	int transCode;
	double balance,
		transAmt;


	cout.setf(ios::fixed);
	cout.setf(ios::showpoint);
	cout.precision(2);

	records trans;
	ifstream inFile;
	inFile.open("c:\\checkIn.dat");

	displayTitle();
	balance = getBegBal(inFile);
	getData(inFile);

	while (!inFile.eof())
	{
		trans = getData(inFile);

		switch (trans.code)
		{
		case 1: balance = processCheck(balance, trans.amount); break;
		case 2: balance = processDeposit(balance, trans.amount); break;
		case 3: balance = processATM(balance, trans.amount); break;
		}
		displayBal(trans);
		if (balance < 0)
			balance = processSvcChg(balance);
		getData(inFile);
	}

	return 0;
}


void displayTitle()
{
	cout << "\n       Check Register\n\n";
}

double getBegBal(ifstream& inFile)
{
	//double bal;
	records balance;
	inFile >> balance.amount;
	displayBal(balance);
	return balance.amount;
}

void displayBal(records rec)
{
	cout << "\t\tBalance = $" << setw(10) << rec.amount;
}

records getData(ifstream& inFile)
{
	records rec;
	inFile >> rec.code >> rec.amount;
	return rec;
}

double processCheck(double bal, double amt)
{
	records trans;
	trans.amount = 0;
	cout << "\n  Check =    " << setw(10) << trans.amount;
	return (bal - amt);
}

double processDeposit(double bal, double amt)
{
	records trans;
	trans.amount = 0;
	cout << "\n  Deposit =  " << setw(10) << trans.amount;
	return (bal + amt);
}
double processATM(double bal, double amt)
{
	records trans;
	trans.amount = 0;
	cout << "\n  ATM     =  " << setw(10) << trans.amount;
	bal = bal - amt;
	displayBal(trans);
	bal = bal - ATMFEE;
	cout << "\n  ATM Fee =  " << setw(10) << ATMFEE;
	return (bal);
}
double processSvcChg(double bal)
{
	records trans;
	trans.amount = 0;
	cout << "\n  Service chg =" << setw(8) << CHARGE;
	bal = bal - CHARGE;
	displayBal(trans);
	return (bal);
}


also here is the data file

2000 1 1225.72 1 463.81 3 200 1 632 2 1500 1 300 2 1800

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