101 - Document - Document and Entity Information
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103 - Statement - Consolidated Statement Of Income (U.S. GAAP)
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104 - Statement - Consolidated Statement Of Income (U.S. GAAP) (Parenthetical)
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105 - Statement - Consolidated Statement Of Comprehensive Income (U.S. GAAP)
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106 - Statement - Consolidated Balance Sheet (U.S. GAAP)
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107 - Statement - Consolidated Balance Sheet (U.S. GAAP) (Parenthetical)
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108 - Statement - Consolidated Statement Of Cash Flows (U.S. GAAP)
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109 - Statement - Consolidated Statement Of Cash Flows (U.S. GAAP) (Parenthetical)
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110 - Disclosure - Basis of financial statement preparation
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111 - Disclosure - Business Segments
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112 - Disclosure - Investment and other income
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113 - Disclosure - Employee retirement benefits
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114 - Disclosure - Financing costs
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115 - Disclosure - Long-term debt
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116 - Disclosure - Other long-term obligations
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117 - Disclosure - Net income per share
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118 - Disclosure - Other comprehensive income information
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119 - Disclosure - Acquisition
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120 - Disclosure - Business Segments (Tables)
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121 - Disclosure - Investment and other income (Tables)
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122 - Disclosure - Employee retirement benefits (Tables)
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123 - Disclosure - Financing costs (Tables)
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124 - Disclosure - Long-term debt (Tables)
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125 - Disclosure - Other long-term obligations (Tables)
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126 - Disclosure - Net income per share (Tables)
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127 - Disclosure - Other comprehensive income information (Tables)
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128 - Disclosure - Acquisition (Tables)
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129 - Disclosure - Business Segments (Detail)
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130 - Disclosure - Business Segments (Parenthetical) (Detail)
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131 - Disclosure - Gains and Losses on Asset Sales (Detail)
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132 - Disclosure - Schedule Of Components Of Net Benefit Cost (Detail)
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133 - Disclosure - Schedule of Financing Costs (Detail)
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134 - Disclosure - Long Term Debt (Detail)
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135 - Disclosure - Long Term Debt - Additional Information (Detail)
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136 - Disclosure - Other Long-Term Obligations (Detail)
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137 - Disclosure - Other Long-Term Obligations (Parenthetical) (Detail)
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138 - Disclosure - Net Income Per Share (Detail)
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139 - Disclosure - Changes in Accumulated Other Comprehensive Income (Detail)
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140 - Disclosure - Amounts Reclassified from Accumulated Other Comprehensive Income (Detail)
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141 - Disclosure - Income Tax Expense/(Credit) For Components Of Other Comprehensive Income (Detail)
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142 - Disclosure - Acquisition - Additional Information (Detail)
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143 - Disclosure - Summary of Assets Acquired and Liabilities Assumed (Detail)
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144 - Disclosure - Summary of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail)
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